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109 results on '"Rolli, E"'

1. Espressione eterologa di proteine vegetali in Pichia pastoris

Author

Angelini, R., Balestrini, R., Barera, S., Bellincampi, D., Benedetti, M., Boccaccini, A., Carpaneto, A., Cona, A., Conti, S., Dall'Osto, L., De Caroli, M., Fiorilli, V., Fraudentali, I., Giuntoli, B., Licausi, F., Lionetti, V., Malacarne, G., Martignago, D., Morosinotto, T., Moser, C., Pilati, S., Piro, G., Ricci, A., Rigano, M. M., Rolli, E., Tavladoraki, P., Torelli, A., and Trifilò, P.

Published
2020

8. Search for a Higgs boson in the diphoton final state using the full CDF data set from pp collisions at s=1.96TeV

Author

Aaltonen, T., Álvarez, González, Amerio, B., Amidei, S., Anastassov, D., Annovi, A., Antos, A., Apollinari, J., Appel, G., J. A., Arisawa, Artikov, T., Asaadi, A., Ashmanskas, J., Auerbach, W., Aurisano, B., Azfar, A., Badgett, F., Bae, W., Barbaro, Galtieri, Barnes, A., V. E., Barnett, B. A., Barria, Bartos, P., Bauce, P., Bedeschi, M., Behari, F., Bellettini, S., Bellinger, G., Benjamin, J., Beretvas, D., Bhatti, A., Bisello, A., Bizjak, D., Bland, I., K. R., Blumenfeld, Bocci, B., Bodek, A., Bortoletto, A., Boudreau, D., Boveia, J., Brigliadori, A., Bromberg, L., Brucken, C., Budagov, E., Budd, J., H. S., Burkett, Busetto, K., Bussey, G., Buzatu, P., Calamba, A., Calancha, A., Camarda, C., Campanelli, S., Campbell, M., Canelli, M., Carls, F., Carlsmith, B., Carosi, D., Carrillo, R., Carron, S., Casal, S., Casarsa, B., Castro, M., Catastini, A., Cauz, P., Cavaliere, D., Cavalli, Sforza, Cerri, M., Cerrito, A., Chen, L., Y. C., Chertok, Chiarelli, M., Chlachidze, G., Chlebana, G., Cho, F., Chokheli, K., Chung, D., W. H., Chung, Y. S., Ciocci, M. A., Clark, Clarke, A., Compostella, C., Convery, G., M. E., Conway, Corbo, J., Cordelli, M., Cox, M., C. A., Cox, D. J., Crescioli, Cuevas, F., Culbertson, J., Dagenhart, R., D'Ascenzo, D., Datta, N., Barbaro, De, Dell'Orso, Mauro, Demortier, M., Deninno, L., Devoto, M., D'Errico, F., Canto, Di, Ruzza, Di, Dittmann, B., J. R., D'Onofrio, Donati, Simone, Dong, P., Dorigo, M., Dorigo, T., Ebina, K., Elagin, A., Eppig, A., Erbacher, R., Errede, S., Ershaidat, N., Eusebi, R., Farrington, S., Feindt, M., Fernandez, J. P., Field, R., Flanagan, G., Forrest, R., Frank, M. J., Franklin, M., Freeman, J. C., Funakoshi, Y., Furic, I., Gallinaro, M., Garcia, J. E., Garfinkel, A. F., Garosi, P., Gerberich, H., Gerchtein, E., Giagu, S., Giakoumopoulou, V., Giannetti, P., Gibson, K., Ginsburg, C. M., Giokaris, N., Giromini, P., Giurgiu, G., Glagolev, V., Glenzinski, D., Gold, M., Goldin, D., Goldschmidt, N., Golossanov, A., Gomez, G., Gomez, Ceballos, Goncharov, G., González, M., Gorelov, O., Goshaw, I., A. T., Goulianos, Grinstein, K., Grosso, Pilcher, Group, C., R. C., Guimaraes da Costa, Hahn, J., S. R., Halkiadakis, Hamaguchi, E., Han, A., J. Y., Happacher, Hara, F., Hare, K., Hare, D., Harr, M., R. F., Hatakeyama, Hays, K., Heck, C., Heinrich, M., Herndon, J., Hewamanage, M., Hocker, S., Hopkins, A., Horn, W., Hou, D., Hughes, S., R. E., Hurwitz, Husemann, M., Hussain, U., Hussein, N., Huston, M., Introzzi, J., Iori, G., Ivanov, M., James, A., Jang, E., Jayatilaka, D., Jeon, B., E. J., Jindariani, Jones, S., Joo, M., K. K., Jun, S. Y., Junk, T. R., Kamon, Karchin, T., P. E., Kasmi, Kato, A., Ketchum, Y., Keung, W., Khotilovich, J., Kilminster, V., Kim, B., D. H., Kim, H. S., Kim, J. E., Kim, M. J., Kim, S. B., Kim, S. H., Kim, Y. K., Kim, Y. J., Kimura, Kirby, N., Klimenko, M., Knoepfel, S., Kondo, K., Kong, K., D. J., Konigsberg, Kotwal, J., A. V., Kreps, Kroll, M., Krop, J., Kruse, D., Krutelyov, M., Kuhr, V., Kurata, T., Kwang, M., Laasanen, S., A. T., Lami, Lammel, S., Lancaster, S., Lander, M., R. L., Lannon, Lath, K., Latino, A., Lecompte, G., Lee, T., Lee, E., H. S., Lee, J. S., Lee, S. W., Leo, Leone, S., Lewis, S., J. D., Limosani, Lin, A., C. J., Lindgren, Lipeles, M., Lister, E., Litvintsev, A., D. O., Liu, Liu, C., Liu, H., Liu, Q., Lockwitz, T., Loginov, S., Lucchesi, A., Lueck, D., Lujan, J., Lukens, P., Lungu, P., Lys, G., Lysak, J., Madrak, R., Maeshima, R., Maestro, K., Malik, P., Manca, S., Manousakis, Katsikakis, Margaroli, A., Marino, F., Martínez, C., Mastrandrea, M., Matera, P., Mattson, K., M. E., Mazzacane, Mazzanti, A., Mcfarland, P., K. S., Mcintyre, Mcnulty, P., Mehta, R., Mehtala, A., Mesropian, P., Miao, C., Mietlicki, T., Mitra, D., Miyake, A., Moed, H., Moggi, S., Mondragon, N., M. N., Moon, C. S., Moore, Morello, R., M. J., Morlock, Movilla, Fernandez, Mukherjee, P., Muller, A., Murat, T., Mussini, P., Nachtman, M., Nagai, J., Naganoma, Y., Nakano, J., Napier, I., Nett, A., Neu, J., Neubauer, C., M. S., Nielsen, Nodulman, J., Noh, L., S. Y., Norniella, Oakes, O., Oh, L., S. H., Oh, Y. D., Oksuzian, Okusawa, I., Orava, T., Ortolan, R., Pagan, Griso, Pagliarone, S., Palencia, C., Papadimitriou, E., Paramonov, V., A. A., Patrick, Pauletta, J., Paulini, G., Paus, M., Pellett, C., D. E., Penzo, Phillips, A., T. J., Piacentino, Pianori, G., Pilot, E., Pitts, J., Plager, K., Pondrom, C., Poprocki, L., Potamianos, S., Prokoshin, K., Pranko, F., Ptohos, A., Punzi, Giovanni, Rahaman, G., Ramakrishnan, A., Ranjan, V., Redondo, N., Renton, I., Rescigno, P., Riddick, M., Rimondi, T., Ristori, F., Robson, L., Rodrigo, A., Rodriguez, T., Rogers, T., Rolli, E., Roser, S., Ruffini, R., Ruiz, F., Russ, A., Rusu, J., Safonov, V., Sakumoto, A., W. K., Sakurai, Santi, Y., Sato, L., Saveliev, K., Savoy, Navarro, Schlabach, A., Schmidt, P., Schmidt, A., E. E., Schwarz, Scodellaro, T., Scribano, L., Scuri, A., Seidel, F., Seiya, S., Semenov, Y., Sforza, A., Shalhout, F., S. Z., Shears, Shepard, T., P. F., Shimojima, Shochet, M., Shreyber, Tecker, Simonenko, I., Sinervo, A., Sliwa, P., Smith, K., J. R., Snider, F. D., Soha, Sorin, A., Song, V., Squillacioti, H., Stancari, P., Denis, S. t., Stelzer, R., Stelzer, Chilton, Stentz, O., Strologas, D., Strycker, J., G. L., Sudo, Sukhanov, Y., Suslov, A., Takemasa, I., Takeuchi, K., Tang, Y., Tecchio, J., Teng, M., P. K., Thom, Thome, J., Thompson, J., G. A., Thomson, Toback, E., Tokar, D., Tollefson, S., Tomura, K., Tonelli, T., Torre, D., Torretta, S., Totaro, D., Trovato, P., Ukegawa, M., Uozumi, F., Varganov, S., Vázquez, A., Velev, F., Vellidis, G., Vidal, C., Vila, M., Vilar, I., Vizán, R., Vogel, J., Volpi, M., Wagner, G., Wagner, P., R. L., Wakisaka, Wallny, T., Wang, R., S. M., Warburton, Waters, A., Wester, D., W. C., Whiteson, Wicklund, D., A. B., Wicklund, Wilbur, E., Wick, S., Williams, F., H. H., Wilson, J. S., Wilson, Winer, P., B. L., Wittich, Wolbers, P., Wolfe, S., Wright, H., Wu, T., Wu, X., Yamamoto, Z., Yamato, K., Yang, D., Yang, T., U. K., Yang, Y. C., Yao, W. M., Yeh, G. P., Yi, Yoh, K., Yorita, J., Yoshida, K., Yu, T., G. B., Yu, Yu, I., S. S., Yun, J. C., Zanetti, Zeng, A., Zhou, Y., Zucchelli, C., S. azaki T., Ya mazaki, Y., Yan, Z., Yang, H., Yang, S., Yang, U. K., Yang, Y., Yang, Z., Yanush, S., Yao, W. M., Yao, Y., Yasu, Y., Ye, J., Ye, S., Yilmaz, M., Yoosoofmiya, R., Yorita, K., Yoshida, R., Young, C., Youssef, S., Yu, D., Yu, J., Yuan, L., Yurkewicz, A., Zaets, V. G., Zaidan, R., Zaitsev, A. M., Zajacova, Z., Zalite, Y. o. K., Zanello, L., Zarzhitsky, P., Zaytsev, A., Zdrazil, M., Zeitnitz, C., Zeller, M., Zema, P. F., Zemla, A., Zendler, C., Zenin, A. V., Zenin, O., Zenis, T., Zenonos, Z., Zenz, S., Zerwas, D., Zevi, della Porta G., Zhan, Z., Zhang, D., Zhang, H., Zhang, J., Zhang, X., Zhang, Z., Zhao, L., Zhao, T., Zhao, Z., Zhemchugov, A., Zheng, S., Zhong, J., Zhou, B., Zhou, N., Zhu, C. G., Zhu, H., Zhu, Y., Zhuang, X., Zhuravlov, V., Zieminska, D., Zilka, B., Zimmermann, R., Zimmermann, S., Ziolkowski, M., Zitoun, R., Zivkovic, L., Zmouchko, V. V., Zobernig, G., Zoccoli, A., Zolnierowski, Y., Zsenei, A., zur Nedden, M., Zutshi, V., and Zwalinski, L.

Subjects
Nuclear and High Energy Physics, High Energy Physics::Phenomenology, High Energy Physics::Experiment
Abstract

A search for a narrow Higgs boson resonance in the diphoton mass spectrum is presented based on data corresponding to 10fb -1 of integrated luminosity collected by the CDF experiment from proton-antiproton collisions at s=1.96TeV. To increase the sensitivity of the search, we employ a multivariate discriminant technique for the first time in this channel at CDF. No evidence of signal is observed, and upper limits are set on the cross section times branching ratio of the resonant state as a function of the Higgs boson mass. The limits are interpreted in the context of the standard model with an expected (observed) limit on the cross section times branching ratio of 9.9 (17.0) times the standard model prediction at the 95% credibility level for a Higgs boson mass of 125GeV/c 2. Moreover, a Higgs boson with suppressed couplings to fermions is excluded for masses below 114GeV/c 2 at the 95% credibility level. © 2012 Elsevier B.V.

Published
2012

10. Measurement of the bottom-strange meson mixing phase in the full CDF data set

Author

Aaltonen, T., Alvarez, González, Amerio, B., Amidei, S., Anastassov, D., Annovi, A., Antos, A., Apollinari, J., Appel, G., J. A., Arisawa, Artikov, T., Asaadi, A., Ashmanskas, J., Auerbach, W., Aurisano, B., Azfar, A., Badgett, F., Bae, W., Barbaro, Galtieri, Barnes, A., V. E., Barnett, B. A., Barria, Bartos, P., Bauce, P., Bedeschi, M., Behari, F., Bellettini, S., Bellinger, G., Benjamin, J., Beretvas, D., Bhatti, A., Bisello, A., Bizjak, D., Bland, I., K. R., Blumenfeld, Bocci, B., Bodek, A., Bortoletto, A., Boudreau, D., Boveia, J., Brigliadori, A., Bromberg, L., Brucken, C., Budagov, E., Budd, J., H. S., Burkett, Busetto, K., Bussey, G., Buzatu, P., Calamba, A., Calancha, A., Camarda, C., Campanelli, S., Campbell, M., Canelli, M., Carls, F., Carlsmith, B., Carosi, D., Carrillo, R., Carron, S., Casal, S., Casarsa, B., Castro, M., Catastini, A., Cauz, P., Cavaliere, D., Cavalli, Sforza, Cerri, M., Cerrito, A., Chen, L., Y. C., Chertok, Chiarelli, M., Chlachidze, G., Chlebana, G., Cho, F., Chokheli, K., Chung, D., W. H., Chung, Y. S., Ciocci, M. A., Clark, Clarke, A., Compostella, C., Convery, G., M. E., Conway, Corbo, J., Cordelli, M., Cox, M., C. A., Cox, D. J., Crescioli, Cuevas, F., Culbertson, J., Dagenhart, R., D'Ascenzo, D., Datta, N., Barbaro, De, Dell'Orso, Mauro, Demortier, M., Deninno, L., Devoto, M., D'Errico, F., Canto, Di, Ruzza, Di, Dittmann, B., J. R., D'Onofrio, Donati, Simone, Dong, P., Dorigo, M., Dorigo, T., Ebina, K., Elagin, A., Eppig, A., Erbacher, R., Errede, S., Ershaidat, N., Eusebi, R., Farrington, S., Feindt, M., Fernandez, J. P., Field, R., Flanagan, G., Forrest, R., Frank, M. J., Franklin, M., Freeman, J. C., Funakoshi, Y., Furic, I., Gallinaro, M., Garcia, J. E., Garfinkel, A. F., Garosi, P., Gerberich, H., Gerchtein, E., Giagu, S., Giakoumopoulou, V., Giannetti, P., Gibson, K., Ginsburg, C. M., Giokaris, N., Giromini, P., Giurgiu, G., Glagolev, V., Glenzinski, D., Gold, M., Goldin, D., Goldschmidt, N., Golossanov, A., Gomez, G., Gomez, Ceballos, Goncharov, G., González, M., Gorelov, O., Goshaw, I., A. T., Goulianos, Grillo, K., Grinstein, L., Grosso, Pilcher, Group, C., R. C., Guimaraes Da Costa, Hahn, J., S. R., Halkiadakis, Hamaguchi, E., Han, A., J. Y., Happacher, Hara, F., Hare, K., Hare, D., Harr, M., R. F., Hatakeyama, Hays, K., Heck, C., Heinrich, M., Herndon, J., Hewamanage, M., Hocker, S., Hopkins, A., Horn, W., Hou, D., Hughes, S., R. E., Hurwitz, Husemann, M., Hussain, U., Hussein, N., Huston, M., Introzzi, J., Iori, G., Ivanov, M., James, A., Jang, E., Jayatilaka, D., Jeon, B., E. J., Jindariani, Jones, S., Joo, M., K. K., Jun, S. Y., Junk, T. R., Kamon, Karchin, T., P. E., Kasmi, Kato, A., Ketchum, Y., Keung, W., Khotilovich, J., Kilminster, V., Kim, B., D. H., Kim, H. S., Kim, J. E., Kim, M. J., Kim, S. B., Kim, S. H., Kim, Y. K., Kim, Y. J., Kimura, Kirby, N., Klimenko, M., Knoepfel, S., Kondo, K., Kong, K., D. J., Konigsberg, Kotwal, J., A. V., Kreps, Kroll, M., Krop, J., Kruse, D., Krutelyov, M., Kuhr, V., Kurata, T., Kwang, M., Laasanen, S., A. T., Lami, Lammel, S., Lancaster, S., Lander, M., R. L., Lannon, Lath, K., Latino, A., Lecompte, G., Lee, T., Lee, E., H. S., Lee, J. S., Lee, S. W., Leo, Leone, S., Lewis, S., J. D., Limosani, Lin, A., C. J., Lindgren, Lipeles, M., Lister, E., Litvintsev, A., D. O., Liu, Liu, C., Liu, H., Liu, Q., Lockwitz, T., Loginov, S., Lucchesi, A., Lueck, D., Lujan, J., Lukens, P., Lungu, P., Lys, G., Lysak, J., Madrak, R., Maeshima, R., Maestro, K., Malik, P., Manca, S., Manousakis, Katsikakis, Margaroli, A., Marino, F., Martínez, C., Mastrandrea, M., Matera, P., Mattson, K., M. E., Mazzacane, Mazzanti, A., Mcfarland, P., K. S., Mcintyre, Mcnulty, P., Mehta, R., Mehtala, A., Mesropian, P., Miao, C., Mietlicki, T., Mitra, D., Miyake, A., Moed, H., Moggi, S., Mondragon, N., M. N., Moon, C. S., Moore, Morello, R., M. J., Morlock, Movilla, Fernandez, Mukherjee, P., Muller, A., Murat, T., Mussini, P., Nachtman, M., Nagai, J., Naganoma, Y., Nakano, J., Napier, I., Nett, A., Neu, J., Neubauer, C., M. S., Nielsen, Nodulman, J., Noh, L., S. Y., Norniella, Oakes, O., Oh, L., S. H., Oh, Y. D., Oksuzian, Okusawa, I., Orava, T., Ortolan, R., Pagan, Griso, Pagliarone, S., Palencia, C., Papadimitriou, E., Paramonov, V., A. A., Patrick, Pauletta, J., Paulini, G., Paus, M., Pellett, C., D. E., Penzo, Phillips, A., T. J., Piacentino, Pianori, G., Pilot, E., Pitts, J., Plager, K., Pondrom, C., Poprocki, L., Potamianos, S., Prokoshin, K., Pranko, F., Ptohos, A., Punzi, Giovanni, Rahaman, G., Ramakrishnan, A., Ranjan, V., Redondo, N., Renton, I., Rescigno, P., Riddick, M., Rimondi, T., Ristori, F., Robson, L., Rodrigo, A., Rodriguez, T., Rogers, T., Rolli, E., Roser, S., Ruffini, R., Ruiz, F., Russ, A., Rusu, J., Safonov, V., Sakumoto, A., W. K., Sakurai, Santi, Y., Sato, L., Saveliev, K., Savoy, Navarro, Schlabach, A., Schmidt, P., Schmidt, A., E. E., Schwarz, Scodellaro, T., Scribano, L., Scuri, A., Seidel, F., Seiya, S., Semenov, Y., Sforza, A., Shalhout, F., S. Z., Shears, Shepard, T., P. F., Shimojima, Shochet, M., Shreyber, Tecker, Simonenko, I., Sinervo, A., Sliwa, P., Smith, K., J. R., Snider, F. D., Soha, Sorin, A., Song, V., Squillacioti, H., Stancari, P., Denis, S. t., Stelzer, R., Stelzer, Chilton, Stentz, O., Strologas, D., Strycker, J., G. L., Sudo, Sukhanov, Y., Suslov, A., Takemasa, I., Takeuchi, K., Tang, Y., Tecchio, J., Teng, M., P. K., Thom, Thome, J., Thompson, J., G. A., Thomson, Toback, E., Tokar, D., Tollefson, S., Tomura, K., Tonelli, T., Torre, D., Torretta, S., Totaro, D., Trovato, P., Ukegawa, M., Uozumi, F., Varganov, S., Vázquez, A., Velev, F., Vellidis, G., Vidal, C., Vila, M., Vilar, I., Vizán, R., Vogel, J., Volpi, M., Wagner, G., Wagner, P., R. L., Wakisaka, Wallny, T., Wang, R., S. M., Warburton, Waters, A., Wester, D., W. C., Whiteson, Wicklund, D., A. B., Wicklund, Wilbur, E., Wick, S., Williams, F., H. H., Wilson, J. S., Wilson, Winer, P., B. L., Wittich, Wolbers, P., Wolfe, S., Wright, H., Wu, T., Wu, X., Yamamoto, Z., Yamato, K., Yang, D., Yang, T., U. K., Yang, Y. C., Yao, W. M., Yeh, G. P., Yi, Yoh, K., Yorita, J., Yoshida, K., Yu, T., G. B., Yu, Yu, I., S. S., Yun, J. C., Zanetti, Zeng, A., Zhou, Y., Zucchelli, C., Jy, S., Koh, Yh, Koike, M, Komatsu, M, Kominami, E, Kong, Hj, Kong, Wj, Korolchuk, Vi, Kotake, Y, Koukourakis, Mi, Kouri Flores JB, Kovács, Al, Kraft, C, Krainc, D, Krämer, H, Kretz Remy, C, Krichevsky, Am, Kroemer, G, Krüger, R, Krut, O, Ktistakis, Nt, Kuan, Cy, Kucharczyk, R, Kumar, A, Kumar, R, Kumar, S, Kundu, M, Kung, Hj, Kurz, T, Kwon, Hj, La Spada AR, Lafont, F, Lamark, T, Landry, J, Lane, Jd, Lapaquette, P, Laporte, Jf, László, L, Lavandero, S, Lavoie, Jn, Layfield, R, Lazo, Pa, Le, W, Le Cam, L, Ledbetter, Dj, Lee, Aj, Lee, Bw, Lee, Gm, Lee, J, Lee, Jh, Lee, M, Lee, Ms, Lee, Sh, Leeuwenburgh, C, Legembre, P, Legouis, R, Lehmann, M, Lei, Hy, Lei, Qy, Leib, Da, Leiro, J, Lemasters, Jj, Lemoine, A, Lesniak, Ms, Lev, D, Levenson, Vv, Levine, B, Levy, E, Li, F, Li, Jl, Li, L, Li, S, Li, W, Li, Xj, Li, Yb, Li, Yp, Liang, C, Liang, Q, Liao, Yf, Liberski, Pp, Lieberman, A, Lim, Hj, Lim, Kl, Lim, K, Lin, Cf, Lin, Fc, Lin, J, Lin, Jd, Lin, K, Lin, Ww, Lin, Wc, Lin, Yl, Linden, R, Lingor, P, Lippincott Schwartz, J, Lisanti, Mp, Liton, Pb, Liu, B, Liu, Cf, Liu, K, Liu, L, Liu, Qa, Liu, W, Liu, Yc, Liu, Y, Lockshin, Ra, Lok, Cn, Lonial, S, Loos, B, Lopez Berestein, G, López Otín, C, Lossi, L, Lotze, Mt, Lőw, P, Lu, B, Lu, Z, Luciano, F, Lukacs, Nw, Lund, Ah, Lynch Day MA, Ma, Y, Macian, F, Mackeigan, Jp, Macleod, Kf, Madeo, F, Maiuri, L, Maiuri, Mc, Malagoli, D, Malicdan, Mc, Malorni, W, Man, N, Mandelkow, Em, Manon, S, Manov, I, Mao, K, Mao, X, Mao, Z, Marambaud, P, Marazziti, D, Marcel, Yl, Marchbank, K, Marchetti, P, Marciniak, Sj, Marcondes, M, Mardi, M, Marfe, G, Mariño, G, Markaki, M, Marten, Mr, Martin, Sj, Martinand Mari, C, Martinet, W, Martinez Vicente, M, Masini, M, Matarrese, P, Matsuo, S, Matteoni, R, Mayer, A, Mazure, Nm, Mcconkey, Dj, Mcconnell, Mj, Mcdermott, C, Mcdonald, C, Mcinerney, Gm, Mckenna, Sl, Mclaughlin, B, Mclean, Pj, Mcmaster, Cr, Mcquibban, Ga, Meijer, Aj, Meisler, Mh, Meléndez, A, Melia, Tj, Melino, G, Mena, Ma, Menendez, Ja, Menna Barreto RF, Menon, Mb, Menzies, Fm, Mercer, Ca, Merighi, A, Merry, De, Meschini, S, Meyer, Cg, Meyer, Tf, Miao, Cy, Miao, Jy, Michels, Pa, Michiels, C, Mijaljica, D, Milojkovic, A, Minucci, S, Miracco, C, Miranti, Ck, Mitroulis, I, Miyazawa, K, Mizushima, N, Mograbi, B, Mohseni, S, Molero, X, Mollereau, B, Mollinedo, F, Momoi, T, Monastyrska, I, Monick, Mm, Monteiro, Mj, Moore, Mn, Mora, R, Moreau, K, Moreira, Pi, Moriyasu, Y, Moscat, J, Mostowy, S, Mottram, Jc, Motyl, T, Moussa, Ce, Müller, S, Muller, S, Münger, K, Münz, C, Murphy, Lo, Murphy, Me, Musarò, A, Mysorekar, I, Nagata, E, Nagata, K, Nahimana, A, Nair, U, Nakagawa, T, Nakahira, K, Nakano, H, Nakatogawa, H, Nanjundan, M, Naqvi, Ni, Narendra, Dp, Narita, M, Navarro, M, Nawrocki, St, Nazarko, Ty, Nemchenko, A, Netea, Mg, Neufeld, Tp, Ney, Pa, Nezis, Ip, Nguyen, Hp, Nie, D, Nishino, I, Nislow, C, Nixon, Ra, Noda, T, Noegel, Aa, Nogalska, A, Noguchi, S, Notterpek, L, Novak, I, Nozaki, T, 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Convery, J. Conway, M. Corbo, M. Cordelli, C. Cox, D. Cox, F. Crescioli, J. Cueva, R. Culbertson, D. Dagenhart, N. d’Ascenzo, M. Datta, P. de Barbaro, M. Dell’Orso, L. Demortier, M. Deninno, F. Devoto, M. d’Errico, A. Di Canto, B. Di Ruzza, J. Dittmann, M. D’Onofrio, S. Donati, P. Dong, M. Dorigo, T. Dorigo, K. Ebina, A. Elagin, A. Eppig, R. Erbacher, S. Errede, N. Ershaidat, R. Eusebi, S. Farrington, M. Feindt, J. Fernandez, R. Field, G. Flanagan, R. Forrest, M. Frank, M. Franklin, J. Freeman, Y. Funakoshi, I. Furic, M. Gallinaro, J. Garcia, A. Garfinkel, P. Garosi, H. Gerberich, E. Gerchtein, S. Giagu, V. Giakoumopoulou, P. Giannetti, K. Gibson, C. Ginsburg, N. Giokari, P. Giromini, G. Giurgiu, V. Glagolev, D. Glenzinski, M. Gold, D. Goldin, N. Goldschmidt, A. Golossanov, G. Gomez, G. Gomez-Ceballo, M. Goncharov, O. González, I. Gorelov, A. Goshaw, K. Gouliano, L. Grillo, S. Grinstein, C. Grosso-Pilcher, R. Group, J. Guimaraes da Costa, S. Hahn, E. Halkiadaki, A. Hamaguchi, J. Han, F. Happacher, K. Hara, D. Hare, M. Hare, R. Harr, K. Hatakeyama, C. Hay, M. Heck, J. Heinrich, M. Herndon, S. Hewamanage, A. Hocker, W. Hopkin, D. Horn, S. Hou, R. Hughe, M. Hurwitz, U. Husemann, N. Hussain, M. Hussein, J. Huston, G. Introzzi, M. Iori, A. Ivanov, E. Jame, D. Jang, B. Jayatilaka, E. Jeon, S. Jindariani, M. Jone, K. Joo, S. Jun, T. Junk, T. Kamon, P. Karchin, A. Kasmi, Y. Kato, W. Ketchum, J. Keung, V. Khotilovich, B. Kilminster, D. Kim, H. Kim, J. Kim, M. Kim, S. Kim, Y. Kim, N. Kimura, M. Kirby, S. Klimenko, K. Knoepfel, K. Kondo, D. Kong, J. Konigsberg, A. Kotwal, M. Krep, J. Kroll, D. Krop, M. Kruse, V. Krutelyov, T. Kuhr, M. Kurata, S. Kwang, A. Laasanen, S. Lami, S. Lammel, M. Lancaster, R. Lander, K. Lannon, A. Lath, G. Latino, T. LeCompte, E. Lee, H. Lee, J. Lee, S. Lee, S. Leo, S. Leone, J. Lewi, A. Limosani, C.-J. Lin, M. Lindgren, E. Lipele, A. Lister, D. Litvintsev, C. Liu, H. Liu, Q. Liu, T. Liu, S. Lockwitz, A. Loginov, D. Lucchesi, J. Lueck, P. Lujan, P. Luken, G. Lungu, J. Ly, R. Lysak, R. Madrak, K. Maeshima, P. Maestro, S. Malik, G. Manca, A. Manousakis-Katsikaki, F. Margaroli, C. Marino, M. Martínez, P. Mastrandrea, K. Matera, M. Mattson, A. Mazzacane, P. Mazzanti, K. McFarland, P. McIntyre, R. McNulty, A. Mehta, P. Mehtala, C. Mesropian, T. Miao, D. Mietlicki, A. Mitra, H. Miyake, S. Moed, N. Moggi, M. Mondragon, C. Moon, R. Moore, M. Morello, J. Morlock, P. Movilla Fernandez, A. Mukherjee, Th. Muller, P. Murat, M. Mussini, J. Nachtman, Y. Nagai, J. Naganoma, I. Nakano, A. Napier, J. Nett, C. Neu, M. Neubauer, J. Nielsen, L. Nodulman, S. Noh, O. Norniella, L. Oake, S. Oh, Y. Oh, I. Oksuzian, T. Okusawa, R. Orava, L. Ortolan, S. Pagan Griso, C. Pagliarone, E. Palencia, V. Papadimitriou, A. Paramonov, J. Patrick, G. Pauletta, M. Paulini, C. Pau, D. Pellett, A. Penzo, T. Phillip, G. Piacentino, E. Pianori, J. Pilot, K. Pitt, C. Plager, L. Pondrom, S. Poprocki, K. Potamiano, F. Prokoshin, A. Pranko, F. Ptoho, G. Punzi, A. Rahaman, V. Ramakrishnan, N. Ranjan, I. Redondo, P. Renton, M. Rescigno, T. Riddick, F. Rimondi, L. Ristori, A. Robson, T. Rodrigo, T. Rodriguez, E. Roger, S. Rolli, R. Roser, F. Ruffini, A. Ruiz, J. Ru, V. Rusu, A. Safonov, W. Sakumoto, Y. Sakurai, L. Santi, K. Sato, V. Saveliev, A. Savoy-Navarro, P. Schlabach, A. Schmidt, E. Schmidt, T. Schwarz, L. Scodellaro, A. Scribano, F. Scuri, S. Seidel, Y. Seiya, A. Semenov, F. Sforza, S. Shalhout, T. Shear, P. Shepard, M. Shimojima, M. Shochet, I. Shreyber-Tecker, A. Simonenko, P. Sinervo, K. Sliwa, J. Smith, F. Snider, A. Soha, V. Sorin, H. Song, P. Squillacioti, M. Stancari, R. St. Deni, B. Stelzer, O. Stelzer-Chilton, D. Stentz, J. Strologa, G. Strycker, Y. Sudo, A. Sukhanov, I. Suslov, K. Takemasa, Y. Takeuchi, J. Tang, M. Tecchio, P. Teng, J. Thom, J. Thome, G. Thompson, E. Thomson, D. Toback, S. Tokar, K. Tollefson, T. Tomura, D. Tonelli, S. Torre, D. Torretta, P. Totaro, M. Trovato, F. Ukegawa, S. Uozumi, A. Varganov, F. Vázquez, G. Velev, C. Vellidi, M. Vidal, I. Vila, R. Vilar, J. Vizán, M. Vogel, G. Volpi, P. Wagner, R. Wagner, T. Wakisaka, R. Wallny, S. Wang, A. Warburton, D. Water, W. Wester, D. Whiteson, A. Wicklund, E. Wicklund, S. Wilbur, F. Wick, H. William, J. Wilson, P. Wilson, B. Winer, P. Wittich, S. Wolber, H. Wolfe, T. Wright, X. Wu, Z. Wu, K. Yamamoto, D. Yamato, T. Yang, U. Yang, Y. Yang, W.-M. Yao, G. Yeh, K. Yi, J. Yoh, K. Yorita, T. Yoshida, G. Yu, I. Yu, S. Yu, J. Yun, A. Zanetti, Y. Zeng, C. Zhou, S. Zucchelli, and Universidad de Cantabria

Subjects
FERMILAB TEVATRON COLLIDER, Particle physics, CP-violating asymmetries, Meson, B physic, General Physics and Astronomy, FOS: Physical sciences, B physics, Angle distribution, Branching ratio, CDF experiments, CP violations, CP-violating asymmetries, Data sample, Fermilab Tevatron collider, Integrated luminosity, Longitudinal polarization, Vector meson, Longitudinal polarization, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Vector meson, Physics and Astronomy (all), High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Mixing (mathematics), Strange b mesons, Phase (matter), 0103 physical sciences, STRANGE QUARK, mixing, Bottom-Strange Meson Mixing Phase, proton antiproton collisions, 010306 general physics, TEVATRON, Nuclear Experiment, BOTTOM QUARK, Physics, Integrated luminosity, 010308 nuclear & particles physics, Branching ratio, High Energy Physics - Phenomenology, CDF experiments, CP violations, Full data, Content (measure theory), Angle distribution, CDF, Production (computer science), High Energy Physics::Experiment, Data sample
Abstract

We report a measurement of the bottom-strange meson mixing phase βs using the time evolution of Bs0→J/ψ(→μ+μ-)ϕ(→K+K-) decays in which the quark-flavor content of the bottom-strange meson is identified at production. This measurement uses the full data set of proton-antiproton collisions at s=1.96 TeV collected by the Collider Detector experiment at the Fermilab Tevatron, corresponding to 9.6 fb-1 of integrated luminosity. We report confidence regions in the two-dimensional space of βs and the Bs0 decay-width difference ΔΓs and measure βs∈[-π/2,-1.51]∪[-0.06,0.30]∪[1.26,π/2] at the 68% confidence level, in agreement with the standard model expectation. Assuming the standard model value of βs, we also determine ΔΓs=0.068±0.026(stat)±0.009(syst) ps-1 and the mean Bs0 lifetime τs=1.528±0.019(stat)±0.009(syst) ps, which are consistent and competitive with determinations by other experiments., This work was supported by the U.S. Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean World Class University Program, the National Research Foundation of Korea; the Science and Technology Facilities Council and the Royal Society, UK; the Russian Foundation for Basic Research; the Ministerio de Ciencia e Innovación, and Programa Consolider-Ingenio 2010, Spain; the Slovak R&D Agency; the Academy of Finland; and the Australian Research Council (ARC).

Published
2012

14. The fast and slow Hα chromospheric responses to non-thermal particles produced during the 1991 March 13 hard X-ray/gamma-ray flare at ~ 08 UTC

Author

Trottet, G., Rolli, E., Magun, A., Barat, C., Kuznetsov, A., Sunyaev, R., Terekhov, O., Observatoire de Paris, Université Paris sciences et lettres (PSL), Centre d'étude spatiale des rayonnements (CESR), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), and Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)

Subjects
GAMMA RAYS, [SDU]Sciences of the Universe [physics], SUN: X-RAYS, SUN: CHROMOSPHERE, SUN: FLARES, SUN: ACTIVITY
Abstract

International audience; We present a multi-wavelength analysis of the X1.3/2B solar flare at 8 UTC on 1991 March 13 which includes Hα images obtained by the fast digital Hα -camera at Locarno-Monti at a rate of five images per second, full disk microwave measurements made with a time resolution of 0.1 s by the radiotelescopes in Bern and hard X-ray/gamma-ray data with a

Published
2000

16. An optimized method for in vitro propagation of African baobab ( Adansonia digitata L.) using two-node segments.

Author

Rolli, E., Brunoni, F., and Bruni, R.

Subjects
*ADANSONIA digitata, *PLANT propagation, *SPECIES distribution, *SEEDLINGS, *IN vitro studies
Abstract

Adansonia digitataL. (African baobab), is an important multi-purpose tree, whose distribution is at present limited to wild or semi-domesticated individuals widespread in Africa. Its distribution is threatened by seedling clearance for other land use and potentially by overharvesting induced by growing commercial use of baobab fruit. Recently, efforts have been made to establish baobab domestication and conservation strategies, with mixed results due to the low germinability of baobab seeds, a factor that hinders the possibility of developing commercialA. digitataplantations. Here, micropropagation was tested as a method for clonal propagation of explants fromin vivo-grown seedlings.In vitroshoot multiplication was achieved by enhanced axillary bud proliferation of sterilized two-node segments. Bud break was dependent on cytokinin supply, but the combination of 1.0 or 10.0 μM zeatin riboside and 10.0 μM indole-3-butyric acid (IBA) increased the formation of microshoots after 8 weeks of culture. Regenerated microshoots rooted successfully inin vitronutrient medium containing 10.0 μM IBA and normally grew in a greenhouse after acclimatization. [ABSTRACT FROM AUTHOR]

Published
2016
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17. Long-term mortality and its predictors in patients with critical leg ischemia

Author

Belgrano, Ea, Nardella, L, Ponzio, E, Nessi, E, Guala, A, Mazzucchetti, S, Graziano, L, Urban, I, Palombo, D, Brustia, P, Calzoni, D, Bellone, M, Altieri, M, Agus, Gb, De Angelis, R, Marrocu, R, Grossi, A, Frigerio, D, Biasi, Gm, Piglionica, Mr, Agrifoglio, G, Costantini, A, Della Vedova, Mr, Miglierina, L, Lavorato, E, Emanuelli, G, Rossi, R, Flandoli, C, Ponti, Gb, Berra, S, Losapio, Gm, Ambrosi, R, Inzoli, Mr, Lombardi, G, Tarantola, P, Zocca, N, Sforza, M, Russo, R, Tenchini, P, Bruni, T, Fontanili, M, Guidetti, D, Odero, A, Salvini, M, Pedeferri, G, Bordoni, Mc, Visconti, W, Vedovato, E, Bittolo Bon, G, Maffei, L, Marcon, G, Dell'Olivo, I, Gracco, L, Petralia, G, Cordiano, C, Dorucci, V, Pagnan, A, Visona', A, Tonietto, G, Agresta, E, Burigo, E, Giansante, C, Fiotti, N, Pamich, G, Santirocco, C, Mozzon, L, Gonano, N, Petrilli, Gl, Puzzo, A, Baldino, G, Podestà, A, Guastini, A, Traversaro, A, Zinicola, N, Baglietto, F, Borgatti, E, Filippini, M, Ferrari, E, Tuscano, G, Lonardi, R, Botta, Gc, Banchini, E, Pavarini, E, Delmonte, E, Bucherini, E, Moratti, A, Ieran, M, Bertini, D, Pratesi, C, Corsi, C, Pollastri, M, Marrapodi, E, Vanni, D, Ralli, L, Cecchi, M, Bigalli, A, Del Carratore, G, Mosca, E, Vatteroni, F, Setacci, C, Cao, Piergiorgio, Verzini, Fabio, Mannarino, Elmo, Pasqualini, L, Fedeli, E, Alò, E, Ioannidis, G, Spartera, C, Marino, G, Medori, M, Pola, P, Dal Lago, Aa, Di Giovanani, V, Colli, R, Maniscalco, G, Bartolo, M, Todini, Ar, Benedetti Valentini, E, Irace, L, Fiorani, P, Taurino, M, Marcialis, A, Valitutti, P, Vigliotti, G, Regina, G, Fullone, M, Rizzo, S, Rolli, E, Pascali, M, Lucentini, L, Grilli, M, Correra, H, Florena, M, Cassina, I, Notarbartolo, A, Belvedere, M, Andreozzi, Gm, Di Pino, L, Martini, R, Signorelli, S, Romeo, S, Cormaci, Of, Costanzo, C, Grasso, A, Avanzini, F, Bedoni, P, Bertele', V, Colombo, F, Fellin, G, Pangrazzi, J, Roncaglioni, Mc, Samori, G, Tognoni, G, De Gaetano, G, Garattini, S, and Tognoni, G.

Subjects
Critical leg ischaemia, Peripheral vascular disease, Mortality, Predictive variables
Published
1997

18. A prospective epidemiological survey of the natural history of chronic leg ischaemia. Evidence of the severity of prognosis and need for large-scale clinical trials

Author

Belgrano, Ea, Nardella, L, Ponzio, E, Nessi, E, Guala, A, Mazzucchetti, S, Graziano, L, Urban, I, Palombo, D, Brustia, P, Calzoni, D, Bellone, M, Altieri, M, Agus, Gb, De Angelis, R, Marrocu, R, Grossi, A, Frigerio, D, Biasi, Gm, Piglionica, Mr, Agrifoglio, G, Costantini, A, Della Vedova MR, Miglierina, L, Lavorato, E, Emanuelli, G, Rossi, R, Flandoli, C, Ponti, Gb, Berra, S, Losapio, Gm, Ambrosi, R, Inzoli, Mr, Lombardi, G, Tarantola, P, Zocca, N, Sforza, M, Russo, R, Tenchini, P, Bruni, T, Fontanili, M, Guidetti, D, Odero, A, Salvini, M, Pedeferri, G, Bordoni, Mc, Visconti, W, Vedovato, E, Bittolo Bon, G, Maffei, L, Marcon, G, Dell'Olivo, I, Gracco, L, Petralia, G, Cordiano, C, Dorucci, V, Pagnan, A, Visona', A, Tonietto, G, E Favretti E, Agresta, Burigo, E, Giansante, C, Fiotti, N, Pamich, G, Santirocco, C, Mozzon, L, Gonano, N, Petrilli, Gl, Puzzo, A, Baldino, G, Podestà, A, Guastini, A, Traversaro, A, Zinicola, N, Baglietto, F, Borgatti, E, Filippini, M, E Ridolfi Coppi G, Ferrari, Tuscano, G, Lonardi, R, Botta, Gc, Banchini, E, Pavarini, E, Delmonte, E, Bucherini, E, Moratti, A, Ieran, M, Bertini, D, Pratesi, C, Corsi, C, Pollastri, M, Marrapodi, E, Vanni, D, Ralli, L, Cecchi, M, Bigalli, A, Del Carratore, G, Mosca, E, Vatteroni, F, Setacci, C, Cao, P, Verzini, F, Mannarino, E, Pasqualini, L, Fedeli, E, Alò, E, Ioannidis, G, Spartera, C, Marino, G, Medori, M, Pola, P, Dal Lago AA, Di Giovanani, V, Colli, R, Maniscalco, G, Bartolo, M, Todini, Ar, Benedetti-Valentini, E, Irace, L, Fiorani, P, Taurino, M, Marcialis, A, Valitutti, P, Vigliotti, G, Regina, G, Fullone, M, Rizzo, S, Rolli, E, Pascali, M, Lucentini, L, Grilli, M, Correra, H, Florena, M, Cassina, I, Notarbartolo, A, Belvedere, M, Andreozzi, Gm, Di Pino, L, Martini, R, Signorelli, S, Romeo, S, Cormaci, Of, Costanzo, C, Grasso, A, Avanzini, F, Bedoni, P, Bertele', V, Colombo, F, Fellin, G, Pangrazzi, J, Roncaglioni, Mc, Samori, G, Tognoni, G, De Gaetano, G, and Garattini, S

Subjects
Epidemiology, Critical leg ischaemia, Peripheral vascular disease
Published
1996

19. In vitro micropropagation of the aquatic fern Marsilea quadrifolia L. and genetic stability assessment by RAPD markers.

Author

Rolli, E., Brunoni, F., Marieschi, M., Torelli, A., and Ricci, A.

Subjects
*PLANT micropropagation, *WATER ferns, *MARSILEA quadrifolia, *PLANT genetics, *IN vitro studies, *RAPD technique, *BIOMARKERS
Abstract

In order to conserve and multiply the aquatic fernMarsilea quadrifoliaL., in a long-termin vitroprocedure, the effects of different cytokinins, i.e., 6-benzylaminopurine, zeatine riboside, andN6-(2-isopentenyl)adenine, were investigated, varying their concentration and period of supplementation. No clear stimulatory effect on thede novonodes produced per explant was detected when compared with hormone-free (HF) condition. On the contrary, the rhizome explant micropropagation was inhibited, the inhibition decreasing with the decreasing strength of cytokinins, though without reaching any significant enhancement. Since, as a consequence of the tissue culture procedure, the occurrence of somaclonal variation may introduce genomic alterations, genetic stability was assessed by random amplified polymorphic DNA (RAPD) analysis by comparing eight randomly selected micropropagated plants derived from repeated subcultures, with donor plant. Eighteen different primers generated 189 bands ranging from 100 to 3250 bp, and the same banding profiles were exhibited. No genomic alterations were evidenced in any of the micropropagated plants. Well-developed micropropagated plants were also successfully acclimatized under greenhouse condition. These positive results suggest that thein vitroHF micropropagation could be useful in the development ofex situconservation programs ofM. quadrifolia, even in order to possibly reintroduce the plants in their natural environment. [ABSTRACT FROM AUTHOR]

Published
2015
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21. The 1992 January 5 Flare at 13.3 UT: Observations from YOHKOH

Author

Doschek, G. A., primary, Strong, K. T., additional, Bentley, R. D., additional, Brown, C. M., additional, Culhane, J. L., additional, Fludra, A., additional, Hiei, E., additional, Lang, J., additional, Mariska, J. T., additional, Phillips, K. J. H., additional, Pike, C. D., additional, Sterling, A. C., additional, Watanabe, T., additional, Acton, L. W., additional, Bruner, M. E., additional, Hirayama, T., additional, Tsuneta, S., additional, Rolli, E., additional, Kosugi, T., additional, Yoshimori, M., additional, Hudson, H. S., additional, Metcalf, T. R., additional, Wuelser, J.-P., additional, Uchida, Y., additional, and Ogawara, Y., additional

Published
1993
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22. Gas-phase protonation and methyl cation transfer from methyl halide ions.

Author

Houriet, R., Rolli, E., Flammang, R., Maquestiau, A., and Bouchoux, G.

Abstract

The ion-molecule reactions between [CH3X]+˙ [CH3XH] +, [CH3XCH3]+ ions (X = F, Cl, Br, I) and a number of nucleophiles have been studied by ion cyclotron resonance techniques. Protonation of the nucleophiles is observed to occur from both the molecular ions [CH3]X+˙ and protonated species [CH3XH]+ whereas dimethylhalonium ions [CH3XCH3]+ react principally by methyl cation transfer. A notable exception occurs in methyl iodide where the molecular ions [CH3I]+˙ act both as proton and methyl cation donors, whereas dimethyliodonium ions are found unreactive. The results are discussed with reference to the use of alkyl halides as reagent gases in chemical ionization experiments. [ABSTRACT FROM AUTHOR]

Published
1987
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35. Noterelle di conferma sull'interesse legittimo

Author

GUIDO CLEMENTE DI SAN LUCA, C. Acocella, G. Acocella, S. Amorosino, F.G. Angelini, S. Antoniazzi, M. Antonioli, A. Areddu, G. Armao, F. Armenante, F. Astone, A. Barone, A. Bartolini, A. Benedetti, C. Benetazzo, V. Berlingò, E. Boscolo, C. Bottari, F. Laus, C. Cacciavillani, M. Cafagno, M. Calabrò, V. Caputi Jambrenghi, A. Angiuli, A. Caracciolo La Grotteria, E. Caracciolo La Grotteria, E. Cardi, E. Carloni, G.F. Cartei, G. Carullo, A. Cassatella, A. Catelani, M.C. Cavallaro, C. Celone, G. Chiara, P. Chirulli, M.P. Chiti, F. Cimbali, S. Cimini, F. Cintioli, A. Cioffi, M. Clarich, G. Clemente di San Luca, M. Cocconi, G. Cocozza, S. Cognetti, A. Colavecchio, G. Colombini, G.D. Comporti, A. Contieri, G. Corso, F. Costantino, G. Crepaldi, A. Crismani, A. Crosetti, C. Cudia, C. Cupelli, F. D'Angelo, M. D'Angelosante, S. D'Antonio, M. D'Arienzo, G. D'Emma, D. D'Orsogna, M. D'Orsogna, D. De Carolis, M. De Cristofaro, M. De Donno, G. De Giorgi Cezzi, F. de Leonardis, G. De Maio, E. De Marco, G.C. De Martin, R. De Nictolis, A. De Siano, G. della Cananea, M.G. Della Scala, M. Delsignore, S. Dettori, A. Di Giovanni, M. Dipace, R. Dipace, V. Domenichelli, M. Dugato, V. Fanti, C. Feliziani, L. Ferrara, M.V. Ferroni, F. Figorilli, W. Giulietti, O. Fiumara, E. Follieri, P. Forte, M. Fracanzani, F. Fracchia, F. Francario, F. Gaffuri, D.U. Galetta, C.E. Gallo, F. Gallo, F. Gambardella, G. Gargano, F. Gaspari, V. Gasparini Cesari, W. Gasparri, M.P. Genesin, L. Giani, E. Giardino, F. Giglioni, V. Giomi, A. Giusti, M. Gola, G. Greco, P. Grossi, C. Guacci, N. Gullo, G. Guzzardo, A. Iacopino, G. Iacovone, M. Immordino, I. Impastato, M. Interlandi, M. Ippolito, L. Lamberti, S. Lariccia, A. Lazzaro, G. Leone, G.F. Licata, S. Licciardello, F. Liguori, P. Lombardi, R. Lombardi, N. Longobardi, F. Lubrano, S. Lucattini, M. Luciani, A. Lupo, L. Maccarrone, M. Macchia, A. Maltoni, B. Mameli, F. Manganaro, V. Manzetti, F. Marinelli, D. Marongiu, D. Marrama, G. Martini, A. Massera, A. Masucci, M. Mazzamuto, F. Merusi, S. Mirate, V. Molaschi, G. Morbidelli, L. Murgolo, C.M.A. Orrei, G. Pagliari, C. Pagliarin, G. Palma, M. Palma, G. Palmieri, N. Paolantonio, P. Patrito, S. Pellizzari, L.R. Perfetti, S. Perongini, E. Picozza, G. Piperata, A. Police, P.L. Portaluri, G.A. Primerano, A. Proto Pisani, M. Protto, P. Provenzano, A. Pubusa, F. Pubusa, S. Puddu, M. Ragusa, M. Ramajoli, M. Renna, R. Rolli, E. Romano, M.C. Romano, A. Romeo, G. Rossi, F. Saitta, N. Saitta, F. Salvia, L. Sambucci, A. Sandulli, M.A. Sandulli, F. Satta, E.F. Schlitzer, D. Siclari, A. Simonati, H. Simonetti, B. Sordi, G. Sorrentino, R. Spagnuolo Vigorita, B. Spampinato, M.R. Spasiano, P. Stella Richter, P. Tanda, S. Tarullo, A. Tigano, F. Tigano, M. Timo, R. Titomanlio, M. Trimarchi, W. Troise Mangoni, G. Tropea, A. Giannelli, F.F. Tuccari, S. Tuccillo, G. Urbano, R. Ursi, S. Vasta, G. Vercillo, G. Vesperini, F. Vetrò, N. Vettori, C. Videtta, S. Villamena, R. Villata, P.M. Vipiana, F. Zammartino, A. Zito, and CLEMENTE DI SAN LUCA, Guido

Published
2020

36. Root bacterial endophytes confer drought resistance and enhance expression and activity of a vacuolar H+-pumping pyrophosphatase in pepper plants

Author

Graziano Zocchi, Daniele Daffonchio, Grégoire Michoud, Sara Borin, Eleonora Rolli, M. Dell’Orto, Ramona Marasco, Noura Raddadi, Claudia Sorlini, Gianpiero Vigani, Asma Soussi, and Vigani G, Rolli E, Marasco R, Dell'Orto M, Michoud G, Soussi A, Raddadi N, Borin S, Sorlini C, Zocchi G, Daffonchio D.

Subjects
Plant, bacteria, Microbiology, Ecology, Evolution, Behavior and Systematics, Evolution, ATPase, Transgene, Drought tolerance, Biology, Photosynthesis, Microbiology, 03 medical and health sciences, chemistry.chemical_compound, Behavior and Systematics, Pepper, bacteria, 030304 developmental biology, 0303 health sciences, Pyrophosphatase, Ecology, 030306 microbiology, Host (biology), fungi, food and beverages, Plant, Proton pump, chemistry, biology.protein
Abstract

It has been previously shown that the transgenic overexpression of the plant root vacuolar proton pumps H+ -ATPase (V-ATPase) and H+ -PPase (V-PPase) confer tolerance to drought. Since plant-root endophytic bacteria can also promote drought tolerance, we hypothesize that such promotion can be associated to the enhancement of the host vacuolar proton pumps expression and activity. To test this hypothesis, we selected two endophytic bacteria endowed with an array of in vitro plant growth promoting traits. Their genome sequences confirmed the presence of traits previously shown to confer drought resistance to plants, such as the synthesis of nitric oxide and of organic volatile organic compounds. We used the two strains on pepper (Capsicuum annuum L.) because of its high sensitivity to drought. Under drought conditions, both strains stimulated a larger root system and enhanced the leaves' photosynthetic activity. By testing the expression and activity of the vacuolar proton pumps, H+ -ATPase (V-ATPase) and H+ -PPase (V-PPase), we found that bacterial colonization enhanced V-PPase only. We conclude that the enhanced expression and activity of V-PPase can be favoured by the colonization of drought-tolerance-inducing bacterial endophytes.

Published
2019

37. The regulatory elements of araBAD operon, contrary to lac-based expression systems, afford hypersynthesis of murine, and human interferons in Escherichia coli

Author

Paolo Mattana, Pierluigi Mangino, Eleonora Rolli, Lanfranco Masotti, Pietro Alfarano, Alessandra Stefan, Alejandro Hochkoeppler, Davide Merulla, Stefan A., Alfarano P., Merulla D., Mattana P., Rolli E., Mangino P., Masotti L., and Hochkoeppler A.

Subjects
Operon, Genetic Vectors, lac operon, Biology, medicine.disease_cause, INTERFERONS, Mice, Viral Proteins, Interferon, Gene expression, medicine, IPTG, Escherichia coli, T7 RNA polymerase, Animals, Humans, RNA, Messenger, Promoter Regions, Genetic, Gene, Reverse Transcriptase Polymerase Chain Reaction, DNA-Directed RNA Polymerases, Molecular biology, Arabinose, Recombinant Proteins, T7 RNA POLYMERASE, Kinetics, Lac Operon, Interferon Type I, Electrophoresis, Polyacrylamide Gel, L-arabinose operon, Biotechnology, medicine.drug
Abstract

The overexpression of four different interferons, i.e., murine interferon α1 and human interferons α1, α8, and α21 was challenged in Escherichia coli. Synthetic genes coding for these interferons were designed, assembled, and cloned into the vector pET9a (using the NdeI and BamHI sites), placing interferon expression under the control of phage T7 promoter. Despite an intensive screening for optimal culture conditions, no interferon synthesis was observed using overexpression systems based on the regulatory elements of lac operon (e.g., in E. coli BL21DE3). On the contrary, high levels of interferon expression were detected in E. coli BL21AI, which chromosome contains the gene coding for phage T7 RNA polymerase under the control of the araBAD promoter. To analyze the reasons of this striking difference, the molecular events associated with the lack of interferon expression in E. coli BL21DE3 were studied, and murine interferon α1 was chosen as a model system. Surprisingly, it was observed that this interferon represses the synthesis of T7 RNA polymerase in E. coli BL21DE3 and, in particular, the expression of lac operon. In fact, by determining β-galactosidase activity in E. coli BL21AI, a significantly lower LacZ activity was observed in cells induced to interferon synthesis. © 2009 American Institute of Chemical Engineers Biotechnol. Prog., 2009

Published
2009

38. Polychlorinated biphenyls modify Arabidopsis root exudation pattern to accommodate degrading bacteria, showing strain and functional trait specificity.

Author

Rolli E, Ghitti E, Mapelli F, and Borin S

Abstract

Introduction: The importance of plant rhizodeposition to sustain microbial growth and induce xenobiotic degradation in polluted environments is increasingly recognized., Methods: Here the "cry-for-help" hypothesis, consisting in root chemistry remodeling upon stress, was investigated in the presence of polychlorinated biphenyls (PCBs), highly recalcitrant and phytotoxic compounds, highlighting its role in reshaping the nutritional and signaling features of the root niche to accommodate PCB-degrading microorganisms., Results: Arabidopsis exposure to 70 µM PCB-18 triggered plant-detrimental effects, stress-related traits, and PCB-responsive gene expression, reproducing PCB phytotoxicity. The root exudates of plantlets exposed for 2 days to the pollutant were collected and characterized through untargeted metabolomics analysis by liquid chromatography-mass spectrometry. Principal component analysis disclosed a different root exudation fingerprint in PCB-18-exposed plants, potentially contributing to the "cry-for-help" event. To investigate this aspect, the five compounds identified in the exudate metabolomic analysis (i.e., scopoletin, N-hydroxyethyl-β-alanine, hypoxanthine, L-arginyl-L-valine, and L-seryl-L-phenylalanine) were assayed for their influence on the physiology and functionality of the PCB-degrading strains Pseudomonas alcaliphila JAB1, Paraburkholderia xenovorans LB400, and Acinetobacter calcoaceticus P320. Scopoletin, whose relative abundance decreased in PCB-18-stressed plant exudates, hampered the growth and proliferation of strains JAB1 and P320, presumably due to its antimicrobial activity, and reduced the beneficial effect of Acinetobacter P320, which showed a higher degree of growth promotion in the scopoletin-depleted mutant f6'h1 compared to Arabidopsis WT plants exposed to PCB. Nevertheless, scopoletin induced the expression of the bph catabolic operon in strains JAB1 and LB400. The primary metabolites hypoxanthine, L-arginyl-L-valine, and L-seryl-L-phenylalanine, which increased in relative abundance upon PCB-18 stress, were preferentially used as nutrients and growth-stimulating factors by the three degrading strains and showed a variable ability to affect rhizocompetence traits like motility and biofilm formation., Discussion: These findings expand the knowledge on PCB-triggered "cry-for-help" and its role in steering the PCB-degrading microbiome to boost the holobiont fitness in polluted environments., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Rolli, Ghitti, Mapelli and Borin.)

Published
2024
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39. Flavonoids influence key rhizocompetence traits for early root colonization and PCB degradation potential of Paraburkholderia xenovorans LB400.

Author

Ghitti E, Rolli E, Vergani L, and Borin S

Abstract

Introduction: Flavonoids are among the main plant root exudation components, and, in addition to their role in symbiosis, they can broadly affect the functionality of plant-associated microbes: in polluted environments, for instance, flavonoids can induce the expression of the enzymatic degradative machinery to clean-up soils from xenobiotics like polychlorinated biphenyls (PCBs). However, their involvement in root community recruitment and assembly involving non-symbiotic beneficial interactions remains understudied and may be crucial to sustain the holobiont fitness under PCB stress., Methods: By using a set of model pure flavonoid molecules and a natural blend of root exudates (REs) with altered flavonoid composition produced by Arabidopsis mutant lines affected in flavonoid biosynthesis and abundance (null mutant tt4 , flavonoid aglycones hyperproducer tt8 , and flavonoid conjugates hyperaccumulator ttg ), we investigated flavonoid contribution in stimulating rhizocompetence traits and the catabolic potential of the model bacterial strain for PCB degradation Paraburkholderia xenovorans LB400., Results: Flavonoids influenced the traits involved in bacterial recruitment in the rhizoplane by improving chemotaxis and motility responses, by increasing biofilm formation and by promoting the growth and activation of the PCB-degradative pathway of strain LB400, being thus potentially exploited as carbon sources, stimulating factors and chemoattractant molecules. Indeed, early rhizoplane colonization was favored in plantlets of the tt8 Arabidopsis mutant and reduced in the ttg line. Bacterial growth was promoted by the REs of mutant lines tt4 and tt8 under control conditions and reduced upon PCB-18 stress, showing no significant differences compared with the WT and ttg , indicating that unidentified plant metabolites could be involved. PCB stress presumably altered the Arabidopsis root exudation profile, although a sudden "cry-for-help" response to recruit strain LB400 was excluded and flavonoids appeared not to be the main determinants. In the in vitro plant-microbe interaction assays, plant growth promotion and PCB resistance promoted by strain LB400 seemed to act through flavonoid-independent mechanisms without altering bacterial colonization efficiency and root adhesion pattern., Discussions: This study further contributes to elucidate the vast array of functions provided by flavonoids in orchestrating the early events of PCB-degrading strain LB400 recruitment in the rhizosphere and to support the holobiont fitness by stimulating the catabolic machinery involved in xenobiotics decomposition and removal., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Ghitti, Rolli, Vergani and Borin.)

Published
2024
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40. Flavonoids Are Intra- and Inter-Kingdom Modulator Signals.

Author

Ghitti E, Rolli E, Crotti E, and Borin S

Abstract

Flavonoids are a broad class of secondary metabolites with multifaceted functionalities for plant homeostasis and are involved in facing both biotic and abiotic stresses to sustain plant growth and health. Furthermore, they were discovered as mediators of plant networking with the surrounding environment, showing a surprising ability to perform as signaling compounds for a multitrophic inter-kingdom level of communication that influences the plant host at the phytobiome scale. Flavonoids orchestrate plant-neighboring plant allelopathic interactions, recruit beneficial bacteria and mycorrhizal fungi, counteract pathogen outbreak, influence soil microbiome and affect plant physiology to improve its resilience to fluctuating environmental conditions. This review focuses on the diversified spectrum of flavonoid functions in plants under a variety of stresses in the modulation of plant morphogenesis in response to environmental clues, as well as their role as inter-kingdom signaling molecules with micro- and macroorganisms. Regarding the latter, the review addresses flavonoids as key phytochemicals in the human diet, considering their abundance in fruits and edible plants. Recent evidence highlights their role as nutraceuticals, probiotics and as promising new drugs for the treatment of several pathologies.

Published
2022
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41. Environmental micro-niche filtering shapes bacterial pioneer communities during primary colonization of a Himalayas' glacier forefield.

Author

Rolli E, Marasco R, Fusi M, Scaglia B, Schubotz F, Mapelli F, Ciccazzo S, Brusetti L, Trombino L, Tambone F, Adani F, Borin S, and Daffonchio D

Subjects
RNA, Ribosomal, 16S genetics, Bacteria genetics, Soil chemistry, Ice Cover microbiology, Soil Microbiology
Abstract

The pedogenesis from the mineral substrate released upon glacier melting has been explained with the succession of consortia of pioneer microorganisms, whose structure and functionality are determined by the environmental conditions developing in the moraine. However, the microbiome variability that can be expected in the environmentally heterogeneous niches occurring in a moraine at a given successional stage is poorly investigated. In a 50 m 2 area in the forefield of the Lobuche glacier (Himalayas, 5050 m above sea level), we studied six sites of primary colonization presenting different topographical features (orientation, elevation and slope) and harbouring greyish/dark biological soil crusts (BSCs). The spatial vicinity of the sites opposed to their topographical differences, allowed us to examine the effect of environmental conditions independently from the time of deglaciation. The bacterial microbiome diversity and their co-occurrence network, the bacterial metabolisms predicted from 16S rRNA gene high-throughput sequencing, and the microbiome intact polar lipids were investigated in the BSCs and the underlying sediment deep layers (DLs). Different bacterial microbiomes inhabited the BSCs and the DLs, and their composition varied among sites, indicating a niche-specific role of the micro-environmental conditions in the bacterial communities' assembly. In the heterogeneous sediments of glacier moraines, physico-chemical and micro-climatic variations at the site-spatial scale are crucial in shaping the microbiome microvariability and structuring the pioneer bacterial communities during pedogenesis., (© 2022 The Authors. Environmental Microbiology published by Applied Microbiology International and John Wiley & Sons Ltd.)

Published
2022
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42. Better Operating Room Ventilation as Determined by a Novel Ventilation Index is Associated With Lower Rates of Surgical Site Infections.

Author

Surial B, Atkinson A, Külpmann R, Brunner A, Hildebrand K, Sicre B, Troillet N, Widmer A, Rolli E, Maag J, and Marschall J

Subjects
Humans, Cohort Studies, Electrolytes, Operating Rooms, Risk Factors, Surgical Wound Infection epidemiology, Surgical Wound Infection prevention & control, Arthroplasty, Replacement, Hip, Arthroplasty, Replacement, Knee
Abstract

Objective: The aim was to assess the impact of operating room (OR) ventilation quality on surgical site infections (SSIs) using a novel ventilation index., Background: Previous studies compared laminar air flow with conventional ventilation, thereby ignoring many parameters that influence air flow properties., Methods: In this cohort study, we surveyed hospitals participating in the Swiss SSI surveillance and calculated a ventilation index for their ORs, with higher values reflecting less turbulent air displacement. For procedures captured between January 2017 and December 2019, we studied the association between ventilation index and SSI rates using linear regression (hospital-level analysis) and with the individual SSI risk using generalized linear mixed-effects models (patient-level analysis)., Results: We included 47 hospitals (182 ORs). Among the 163,740 included procedures, 6791 SSIs were identified. In hospital-level analyses, a 5-unit increase in the ventilation index was associated with lower SSI rates for knee and hip arthroplasty (-0.41 infections per 100 procedures, 95% confidence interval: -0.69 to -0.13), cardiac (-0.89, -1.91 to 0.12), and spine surgeries (-1.15, -2.56 to 0.26). Similarly, patient-level analyses showed a lower SSI risk with each 5-unit increase in ventilation index (adjusted odds ratio 0.71, confidence interval: 0.58-0.87 for knee and hip; 0.72, 0.49-1.06 for spine; 0.82, 0.69-0.98 for cardiac surgery). Higher index values were mainly associated with a lower risk for superficial and deep incisional SSIs., Conclusions: Better ventilation properties, assessed with our ventilation index, are associated with lower rates of superficial and deep incisional SSIs in orthopedic and cardiac procedures. OR ventilation quality appeared to be less relevant for other surgery types., Competing Interests: The authors report no conflicts of interest., (Copyright © 2022 The Author(s). Published by Wolters Kluwer Health, Inc.)

Published
2022
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43. Pollution and edaphic factors shape bacterial community structure and functionality in historically contaminated soils.

Author

Mapelli F, Vergani L, Terzaghi E, Zecchin S, Raspa G, Marasco R, Rolli E, Zanardini E, Morosini C, Anelli S, Nastasio P, Sale VM, Armiraglio S, Di Guardo A, and Borin S

Subjects
Biodegradation, Environmental, RNA, Ribosomal, 16S genetics, Soil chemistry, Soil Microbiology, Metalloids analysis, Polychlorinated Biphenyls analysis, Polychlorinated Biphenyls metabolism, Soil Pollutants metabolism
Abstract

Studies about biodegradation potential in soils often refer to artificially contaminated and simplified systems, overlooking the complexity associated with contaminated sites in a real context. This work aims to provide a holistic view on microbiome assembly and functional diversity in the model site SIN Brescia-Caffaro (Italy), characterized by historical and uneven contamination by organic and inorganic compounds. Here, physical and chemical analyses and microbiota characterization were applied on one-hundred-twenty-seven soil samples to unravel the environmental factors driving bacterial community assembly and biodegradation potential in three former agricultural fields. Chemical analyses showed a patchy distribution of metals, metalloids and polychlorinated biphenyls (PCB) and allowed soil categorization according to depth and area of collections. Likewise, the bacterial community structure, described by molecular fingerprinting and 16S rRNA gene analyses, was significantly different according to collection site and depth. Pollutant concentrations (i.e., hexachloro-biphenyls, arsenic and mercury), nitrogen content and parameters related to soil texture were identified as main drivers of microbiota assembly, being significantly correlated to bacterial community composition. Moreover, bacteria putatively involved in the aerobic degradation of PCBs were enriched over the total bacterial community in topsoils, where the highest activity was recorded using fluorescein hydrolysis as proxy. Metataxonomic analyses revealed the presence of bacteria having metabolic pathways related to PCB degradation and tolerance to heavy metals and metalloids in the topsoil samples collected in all areas. Overall, the provided dissection of soil microbiota structure and its degradation potential in the SIN Brescia-Caffaro can contribute to target specific areas for rhizoremediation implementation. Metagenomics studies could be implemented in the future to understand if specific degradative pathways are present in historically polluted sites characterized by the co-occurrence of multiple classes of contaminants., (Copyright © 2022 Elsevier GmbH. All rights reserved.)

Published
2022
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44. Rhizosheath-root system changes exopolysaccharide content but stabilizes bacterial community across contrasting seasons in a desert environment.

Author

Marasco R, Fusi M, Mosqueira M, Booth JM, Rossi F, Cardinale M, Michoud G, Rolli E, Mugnai G, Vergani L, Borin S, De Philippis R, Cherif A, and Daffonchio D

Abstract

Background: In hot deserts daily/seasonal fluctuations pose great challenges to the resident organisms. However, these extreme ecosystems host unique microenvironments, such as the rhizosheath-root system of desert speargrasses in which biological activities and interactions are facilitated by milder conditions and reduced fluctuations. Here, we examined the bacterial microbiota associated with this structure and its surrounding sand in the desert speargrass Stipagrostis pungens under the contrasting environmental conditions of summer and winter in the Sahara Desert., Results: The belowground rhizosheath-root system has higher nutrient and humidity contents, and cooler temperatures than the surrounding sand. The plant responds to the harsh environmental conditions of the summer by increasing the abundance and diversity of extracellular polymeric substances (EPS) compared to the winter. On the contrary, the bacterial community associated with the rhizosheath-root system and its interactome remain stable and, unlike the bulk sand, are unaffected by the seasonal environmental variations. The rhizosheath-root system bacterial communities are consistently dominated by Actinobacteria and Alphaproteobacteria and form distinct bacteria communities from those of bulk sand in the two seasons. The microbiome-stabilization mediated by the plant host acts to consistently retain beneficial bacteria with multiple plant growth promoting functions, including those capable to produce EPS, which increase the sand water holding capacity ameliorating the rhizosheath micro-environment., Conclusions: Our results reveal the capability of plants in desert ecosystems to stabilize their below ground microbial community under seasonal contrasting environmental conditions, minimizing the heterogeneity of the surrounding bulk sand and contributing to the overall holobiont resilience under poly-extreme conditions., (© 2022. The Author(s).)

Published
2022
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46. The Lys-motif receptor LYK4 mediates Enterobacter sp. SA187 triggered salt tolerance in Arabidopsis thaliana.

Author

Rolli E, de Zélicourt A, Alzubaidy H, Karampelias M, Parween S, Rayapuram N, Han B, Froehlich K, Abulfaraj AA, Alhoraibi H, Mariappan K, Andrés-Barrao C, Colcombet J, and Hirt H

Subjects
Enterobacter genetics, Plant Immunity, Salt Tolerance, Arabidopsis genetics, Arabidopsis microbiology, Arabidopsis Proteins genetics
Abstract

Root endophytes establish beneficial interactions with plants, improving holobiont resilience and fitness, but how plant immunity accommodates beneficial microbes is poorly understood. The multi-stress tolerance-inducing endophyte Enterobacter sp. SA187 triggers a canonical immune response in Arabidopsis only at high bacterial dosage (>10 8  CFUs ml -1 ), suggesting that SA187 is able to evade or suppress the plant defence system at lower titres. Although SA187 flagellin epitopes are recognized by the FLS2 receptor, SA187-triggered salt tolerance functions independently of the FLS2 system. In contrast, overexpression of the chitin receptor components LYK4 and LYK5 compromised the beneficial effect of SA187 on Arabidopsis, while it was enhanced in lyk4 mutant plants. Transcriptome analysis revealed that the role of LYK4 is intertwined with a function in remodelling defence responses with growth and root developmental processes. LYK4 interferes with modification of plant ethylene homeostasis by Enterobacter SA187 to boost salt stress resistance. Collectively, these results contribute to unlock the crosstalk between components of the plant immune system and beneficial microbes and point to a new role for the Lys-motif receptor LYK4 in beneficial plant-microbe interaction., (© 2021 The Authors. Environmental Microbiology published by Society for Applied Microbiology and John Wiley & Sons Ltd.)

Published
2022
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47. 'Cry-for-help' in contaminated soil: a dialogue among plants and soil microbiome to survive in hostile conditions.

Author

Rolli E, Vergani L, Ghitti E, Patania G, Mapelli F, and Borin S

Subjects
Biodegradation, Environmental, Environmental Pollution, Soil, Soil Microbiology, Microbiota, Polychlorinated Biphenyls analysis, Polychlorinated Biphenyls metabolism, Soil Pollutants metabolism
Abstract

An open question in environmental ecology regards the mechanisms triggered by root chemistry to drive the assembly and functionality of a beneficial microbiome to rapidly adapt to stress conditions. This phenomenon, originally described in plant defence against pathogens and predators, is encompassed in the 'cry-for-help' hypothesis. Evidence suggests that this mechanism may be part of the adaptation strategy to ensure the holobiont fitness in polluted environments. Polychlorinated biphenyls (PCBs) were considered as model pollutants due to their toxicity, recalcitrance and poor phyto-extraction potential, which lead to a plethora of phytotoxic effects and rise environmental safety concerns. Plants have inefficient detoxification processes to catabolize PCBs, even leading to by-products with a higher toxicity. We propose that the 'cry-for-help' mechanism could drive the exudation-mediated recruitment and sustainment of the microbial services for PCBs removal, exerted by an array of anaerobic and aerobic microbial degrading populations working in a complex metabolic network. Through this synergistic interaction, the holobiont copes with the soil contamination, releasing the plant from the pollutant stress by the ecological services provided by the boosted metabolism of PCBs microbial degraders. Improving knowledge of root chemistry under PCBs stress is, therefore, advocated to design rhizoremediation strategies based on plant microbiome engineering., (© 2021 The Authors. Environmental Microbiology published by Society for Applied Microbiology and John Wiley & Sons Ltd.)

Published
2021
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48. Aridity modulates belowground bacterial community dynamics in olive tree.

Author

Marasco R, Fusi M, Rolli E, Ettoumi B, Tambone F, Borin S, Ouzari HI, Boudabous A, Sorlini C, Cherif A, Adani F, and Daffonchio D

Subjects
Bacteria genetics, Desert Climate, Soil, Soil Microbiology, Ecosystem, Olea
Abstract

Aridity negatively affects the diversity and abundance of edaphic microbial communities and their multiple ecosystem services, ultimately impacting vegetation productivity and biotic interactions. Investigation about how plant-associated microbial communities respond to increasing aridity is of particular importance, especially in light of the global climate change predictions. To assess the effect of aridity on plant associated bacterial communities, we investigated the diversity and co-occurrence of bacteria associated with the bulk soil and the root system of olive trees cultivated in orchards located in higher, middle and lower arid regions of Tunisia. The results indicated that the selective process mediated by the plant root system is amplified with the increment of aridity, defining distinct bacterial communities, dominated by aridity-winner and aridity-loser bacteria negatively and positively correlated with increasing annual rainfall, respectively. Aridity regulated also the co-occurrence interactions among bacteria by determining specific modules enriched with one of the two categories (aridity-winners or aridity-losers), which included bacteria with multiple PGP functions against aridity. Our findings provide new insights into the process of bacterial assembly and interactions with the host plant in response to aridity, contributing to understand how the increasing aridity predicted by climate changes may affect the resilience of the plant holobiont., (© 2021 The Authors. Environmental Microbiology published by Society for Applied Microbiology and John Wiley & Sons Ltd.)

Published
2021
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49. Mycotoxin Uptake in Wheat - Eavesdropping Fusarium Presence for Priming Plant Defenses or a Trojan Horse to Weaken Them?

Author

Righetti L, Bhandari DR, Rolli E, Tortorella S, Bruni R, Dall'Asta C, and Spengler B

Abstract

Fusarium mycotoxins represent a major threat for cereal crops and food safety. While previous investigations have described plant biotransforming properties on mycotoxins or metabolic relapses of fungal infections in plants, so far, the potential consequences of radical exposure in healthy crops are mostly unknown. Therefore, we aimed at evaluating whether the exposure to mycotoxins, deoxynivalenol (DON) and zearalenone (ZEN), at the plant-soil interface may be considered a form of biotic stress capable of inducing priming or a potential initiation of fungal attack. To address this, we used atmospheric-pressure scanning microprobe matrix-assisted laser desorption/ionization mass spectrometry imaging to investigate the activation or the inhibition of specific biosynthetic pathways and in situ localization of primary and secondary metabolites in wheat. According to our untargeted metabolomics investigation, the translocation of plant defense metabolites (i.e., hydroxycinnamic acid amide and flavones) follows the mycotoxin accumulation organs, which is the root for ZEN-treated plantlet and culm for DON-treated sample, suggesting a local "defense-on-demand response." Therefore, it can be hypothesized that DON and ZEN are involved in the eavesdropping of Fusarium presence in soil and that wheat response based on secondary metabolites may operate on multiple organs with a potential interplay that involves masked mycotoxins., Competing Interests: BS is a consultant and DB is a part-time employee of TransMIT GmbH, Giessen, Germany. ST is employee at Molecular Horizon srl, distributor of LipostarMSI software. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Righetti, Bhandari, Rolli, Tortorella, Bruni, Dall’Asta and Spengler.)

Published
2021
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50. Unveiling the spatial distribution of aflatoxin B1 and plant defense metabolites in maize using AP-SMALDI mass spectrometry imaging.

Author

Righetti L, Bhandari DR, Rolli E, Tortorella S, Bruni R, Dall'Asta C, and Spengler B

Subjects
Aflatoxin B1 genetics, Metabolomics methods, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization, Zea mays genetics, Aflatoxin B1 metabolism, Zea mays metabolism
Abstract

In order to cope with the presence of unfavorable compounds, plants can biotransform xenobiotics, translocate both parent compounds and metabolites, and perform compartmentation and segregation at the cellular or tissue level. Such a scenario also applies to mycotoxins, fungal secondary metabolites with a pre-eminent role in plant infection. In this work, we aimed to describe the effect of the interplay between Zea mays (maize) and aflatoxin B1 (AFB1) at the tissue and organ level. To address this challenge, we used atmospheric pressure scanning microprobe matrix-assisted laser desorption/ionization mass spectrometry imaging (AP-SMALDI MSI) to investigate the biotransformation, localization and subsequent effects of AFB1 on primary and secondary metabolism of healthy maize plants, both in situ and from a metabolomics standpoint. High spatial resolution (5 µm) provided fine localization of AFB1, which was located within the root intercellular spaces, and co-localized with its phase-I metabolite aflatoxin M2. We provided a parallel visualization of maize metabolic changes, induced in different organs and tissues by an accumulation of AFB1. According to our untargeted metabolomics investigation, anthocyanin biosynthesis and chlorophyll metabolism in roots are most affected. The biosynthesis of these metabolites appears to be inhibited by AFB1 accumulation. On the other hand, metabolites found in above-ground organs suggest that the presence of AFB1 may also activate the biochemical response in the absence of an actual fungal infection; indeed, several plant secondary metabolites known for their antimicrobial or antioxidant activities were localized in the outer tissues, such as phenylpropanoids, benzoxazinoids, phytohormones and lipids., (© 2021 The Authors. The Plant Journal published by Society for Experimental Biology and John Wiley & Sons Ltd.)

Published
2021
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