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3. Role of c-kit in Egg Activation

Author

Rossi, P., Sette, C., Bevilacqua, A., Mangia, F., Geremia, R., Stock, G., editor, Habenicht, U.-F., editor, Stefanini, M., editor, Boitani, C., editor, Galdieri, M., editor, Geremia, R., editor, and Palombi, F., editor

Published
1998
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5. Early Events in the Azorhizobium Caulinodans—Sesbania Rostrata Symbiosis

Author

Mergaert, P., Goormachtig, S., Geelen, D., Geremia, R., Valerio-Lepiniec, M., Fernandez-Lòpez, M., Goethals, K., D’haeze, W., Prome, J.-C., De Bruijn, F. J., Van Montagu, M., Holsters, M., Summerfield, R. J., editor, Tikhonovich, Igor A., editor, Provorov, Nikolai A., editor, Romanov, Vassily I., editor, and Newton, William E., editor

Published
1995
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16. Early Events in the Azorhizobium Caulinodans—Sesbania Rostrata Symbiosis

Author

Mergaert, P., primary, Goormachtig, S., additional, Geelen, D., additional, Geremia, R., additional, Valerio-Lepiniec, M., additional, Fernandez-Lòpez, M., additional, Goethals, K., additional, D’haeze, W., additional, Prome, J.-C., additional, De Bruijn, F. J., additional, Van Montagu, M., additional, and Holsters, M., additional

Published
1995
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21. Anatomia del Gray - Le basi anatomiche per la pratica clinica

Author

cura di: Barni T, Edizione italiana a., Billi, Am, Businaro, R, Cannas, M, Cappello, F, Castellucci, M, Cocco, L, D'Agata, VELIA MARIA, De Caro, R, De Luca, A, Dolci, S, Geremia, R, Guerra, G, Gulisano, M, Loreto, CARLA AGATA, Macchi, V, and Manzoli, L.

Published
2017

23. Arbitrary Waveplate Operations in Integrated Optics

Author

Corrielli, G., Crespi, A., Geremia, R., Sansoni, L., Santinelli, A., Roberta Ramponi, Mataloni, P., Sciarrino, F., and Osellame, R.

Subjects
Photonic chip, Photonic chip, unitary operations, femtosecond laser written circuits, unitary operations, femtosecond laser written circuits
Published
2015

24. Anatomia Umana - Trattato

Author

Anastasi G, Capitani S, Carnazza ML, Cinti S, De Caro R., Donato RF, Ferrario VF, Fonzi L, Franzi AT, Gaudio E, Geremia R, Giordano Lanza G, Grossi CE, Gulisano M, Manzoli FA, Mazzotti G, Michetti F, Miscia S, Mitolo V, Montella A, Orlandini G, Paparelli A, Renda T, Ribatti D, Ruggeri A, Sirigu P, Soscia A, Tredici G, Vitale M, Zaccheo D, Zauli G, Zecchi S., CREMONA , OTTAVIO, Anastasi, G, Capitani, S, Carnazza, Ml, Cinti, S, De Caro, R., Cremona, Ottavio, Donato, Rf, Ferrario, Vf, Fonzi, L, Franzi, At, Gaudio, E, Geremia, R, Giordano Lanza, G, Grossi, Ce, Gulisano, M, Manzoli, Fa, Mazzotti, G, Michetti, F, Miscia, S, Mitolo, V, Montella, A, Orlandini, G, Paparelli, A, Renda, T, Ribatti, D, Ruggeri, A, Sirigu, P, Soscia, A, Tredici, G, Vitale, M, Zaccheo, D, Zauli, G, and Zecchi, S.

Abstract

La quarta edizione del terzo volume del Trattato di Anatomia Umana vede un'estesa revisione sia della parte iconografica che del testo con (i) l'adeguamento della terminologia all'ultima edizione della "Terminologia Anatomica", (ii) l'analisi del particolare anatomico incentrata sulla sua diretta attinenza clinica o fisiologica, (iii) l'introduzione di box per evidenziare importanti correlati morfofunzionali e (iv) l'inserimento di numerosi correlati clinici

Published
2010

25. Prometeus - Atlante di Anatomia

Author

cura di: Bandiera P, Edizione italiana a., Cappello, F, Carpino, G, Cavalletti, Ga, Cocco, L, De Caro, R, De Luca, A, Franchitto, A, Geremia, R, Gesi, M, Grill, V, Guerra, G, Loreto, CARLA AGATA, Manzoli, L, Mazzone, V, Micheletti, P, Michetti, F, Miscia, S, Morini, S, Onori, P, Palumbo, C, Papa, M, Raspanti, M, Rende, M, Renò, F, Rezzani, R, Rodella, Lf, Sbarbati, A, Vercelli, A, Vitale, M, Weber, E, and Zecchi, S.

Published
2014

26. Prometheus - Testo Atlante di Anatomia

Author

Cusella De Angelis, M. G., Barni, T., Cannas, M., Franchitto, A., Geremia, R., Gesi, M., Gulisano, M., Montaruli, A., Palumbo, C., Raspanti, Mario, Rezzani, R., Turci, M. C., and Weber, E.

Published
2014

27. Analysis of the gene expression profile of mouse male meiotic germ cells

Author

Rossi, P, Dolci, S, Sette, C, Capolunghi, F, Pellegrini, M, Loiarro, M, Di Agostino, S, Paronetto, M, Grimaldi, P, Merico, D, Martegani, E, Geremia, R, Paronetto, MP, Geremia, R., MERICO, DAVIDE, MARTEGANI, ENZO, Rossi, P, Dolci, S, Sette, C, Capolunghi, F, Pellegrini, M, Loiarro, M, Di Agostino, S, Paronetto, M, Grimaldi, P, Merico, D, Martegani, E, Geremia, R, Paronetto, MP, Geremia, R., MERICO, DAVIDE, and MARTEGANI, ENZO

Abstract

Wide genome analysis of difference in gene expression between spermatogonial populations from 7-day-old mice and pachytene spermatocytes from 18-day-old mice was performed using Affymetrix gene chips representing similar to 12,500 mouse known genes or EST sequences. spanning approximately 1/3rd of the mouse genome. To delineate differences in the profile of gene expression between mitotic and meiotic stages of male germ cell differentiation, expressed genes were grouped in functional clusters. The analysis confirmed the previously described pre-meiotic or meiotic expression for several genes, in particular for those involved in the regulation of the mitotic and meiotic cell cycle. and for those whose transcripts are accumulated during the meiotic stages to be translated later in post-meiotic stages. Differential expression of several additional genes was discovered. In few cases (pro-apoptotic factors Bak, Bad and Bax), data were in conflict with the previously published stage-dependent expression of genes already known to be expressed in male germ cells. Northern blot analysis of selected genes confirmed the results obtained with the microarray chips. Six of these were novel genes specifically expressed in pachytene spermatocytes: a chromatin remodeling factor (chrac1/YCL1). a homeobox gene (hmx1), a novel G-coupled receptor for an unknown ligand (Gpr19), a glycoprotein of the intestinal epithelium (mucin 3), a novel RAS activator (Ranbp9), and the A630056B21Rik gene (predicted to encode a novel zinc finger protein). These studies will help to delineate the global patterns of gene expression characterizing male germ cell differentiation for a better understanding of regulation of spermatogenesis in mammals. (C) 2003 Elsevier B.V. All rights reserved.

Published
2004

32. Differential contribution of the MTOR and MNK pathways to the regulation of mRNA translation in meiotic and postmeiotic mouse male germ cells

Author

Messina, V, Di Sauro, A, Pedrotti, S, Adesso, L, Latina, A, Geremia, R, Rossi, P, and Sette, C

Subjects
Male, Blotting, Western, enzymologic, TOR serine-threonine kinases, protein biosynthesis, male, protein-serine-threonine kinases, spermatocytes, immunohistochemistry, spermatogenesis, animals, blotting, western, eukaryotic initiation factor-4F, meiosis, enzyme inhibitors, RNA, messenger, signal transduction, cell differentiation, mice, okadaic acid, gene expression regulation, enzymologic, Protein Serine-Threonine Kinases, Gene Expression Regulation, Enzymologic, Mice, western, Spermatocytes, Okadaic Acid, Animals, RNA, Messenger, Enzyme Inhibitors, Spermatogenesis, Settore BIO/16, TOR Serine-Threonine Kinases, Cell Differentiation, gene expression regulation, Immunohistochemistry, blotting, messenger, Meiosis, Eukaryotic Initiation Factor-4F, Protein Biosynthesis, RNA, Signal Transduction
Abstract

Translation of stored mRNAs accounts for protein synthesis during the transcriptionally inactive stages of spermatogenesis. A key step in mRNA translation is the assembly of the initiation complex EIF4F, which is regulated by the MTOR (mammalian target of rapamycin) and MNK1/2 (MAP kinase-interacting kinase 1 and 2) pathways. We investigated the expression and activity of regulatory proteins of these pathways in male germ cells at different stages of differentiation. All translation factors analyzed were expressed in germ cells throughout spermatogenesis. However, while EIF4G and PABP1 (poly[A]-binding protein 1) were more abundant in postmeiotic cells, MTOR and its target EIF4EBP1 (4E-BP1) decreased steadily during spermatogenesis. In vivo labeling showed that pachytene spermatocytes display higher rates of protein synthesis, which are partially dependent on MTOR and MNK activity. By contrast, haploid spermatids are characterized by lower levels of protein synthesis, which are independent of the activity of these pathways. Accordingly, MTOR and MNK activity enhanced formation of the EIF4F complex in pachytene spermatocytes but not in round spermatids. Moreover, external cues differentially modulated the activity of these pathways in meiotic and haploid cells. Heat shock decreased MTOR and MNK activity in pachytene spermatocytes, whereas round spermatids were much less sensitive. On the other hand, treatment with the phosphatase inhibitor okadaic acid activated MTOR and MNK in both cell types. These results indicate that translational regulation is differentially dependent on the MTOR and MNK pathways in mouse spermatocytes and spermatids and suggest that the late stages of germ cell differentiation display constitutive assembly of the translation initiation complex.

Published
2010

33. Combined titration, EXAFS and molecular dynamics modeling study of Cu(II) ions sorbed on the model biopolymer xanthane

Author

Spadini, L., Causse, B., Mazeau, K., Sarret, G., Gury, J., Jean Martins, Heyraud, A., Geremia, R., Delolme, C., Laboratoire de Géophysique Interne et Tectonophysique (LGIT), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Laboratoire Central des Ponts et Chaussées (LCPC)-Institut des Sciences de la Terre (ISTerre), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-PRES Université de Grenoble-Institut de recherche pour le développement [IRD] : UR219-Institut national des sciences de l'Univers (INSU - CNRS)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-PRES Université de Grenoble-Institut de recherche pour le développement [IRD] : UR219-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Laboratoire des Sciences de l'Environnement (LSE-ENTPE), École Nationale des Travaux Publics de l'État (ENTPE)-Université de Lyon-Ministère de l'Ecologie, du Développement Durable, des Transports et du Logement, Centre de Recherches sur les Macromolécules Végétales (CERMAV), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire d'Ecologie Alpine (LECA), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA), Laboratoire d'étude des transferts en hydrologie et environnement (LTHE), Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Laboratoire Central des Ponts et Chaussées (LCPC)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Institut National Polytechnique de Grenoble (INPG)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and Talour, Pascale

Subjects
[SDE.MCG] Environmental Sciences/Global Changes, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [SDE.MCG]Environmental Sciences/Global Changes, [SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry, ComputingMilieux_MISCELLANEOUS
Abstract

International audience; Not available

Published
2010

34. Trattato di Anatomia

Author

Anastasi, G, Capitani, Silvano, Carnazza, Ml, Cinti, S, Cremona, O, De Caro, R, Donato, Rf, Ferrario, Vf, Fonzi, L, Franzi, At, Gaudio, E, Geremia, R, Giordano Lanza, G, Grossi, Ce, Gulisano, M, Manzoli, Fa, Mazzotti, G, Michetti, F, Miscia, S, Mitolo, V, Montella, A, Orlandini, G, Paparelli, A, Renda, T, Ribatti, D, Ruggeri, A, Sirigu, P, Soscia, A, Tredici, G, Vitale, M, Zaccheo, D, Zauli, Giorgio, and Zecchi, S.

Published
2010

38. Investigations of alteration phenomena of Palaeolithic rock art : The case of the large cave of Arcy-sur-Cure ( Yonne, France, 24000-28000 BP )

Author

Reiche, Ina, Chalmin, Emilie, Menu, M., Charlet, Laurent, d' Orlié, F., Zinger, Lucie, Geremia, R. A., Baffier, Dominique, Orial, Geneviève, Girard, M., Centre de recherche et de restauration des musées de France (C2RMF), Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture et de la Communication (MCC), European Synchrotron Radiation Facility (ESRF), Laboratoire de Géophysique Interne et Tectonophysique (LGIT), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Laboratoire Central des Ponts et Chaussées (LCPC)-Institut des Sciences de la Terre (ISTerre), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-PRES Université de Grenoble-Institut de recherche pour le développement [IRD] : UR219-Institut national des sciences de l'Univers (INSU - CNRS)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-PRES Université de Grenoble-Institut de recherche pour le développement [IRD] : UR219-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Laboratoire d'Ecologie Alpine (LECA), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA), Directions régionales des affaires culturelles (DRAC), Ministère de la Culture et de la Communication (MCC), Laboratoire de recherche des monuments historiques (LRMH), Centre de Recherche sur la Conservation (CRC ), Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Centre d'Études Préhistoire, Antiquité, Moyen-Age (CEPAM), Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Central des Ponts et Chaussées (LCPC)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture et de la Communication (MCC)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture et de la Communication (MCC), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), and Foray, Charlotte

Subjects
[SDE.MCG] Environmental Sciences/Global Changes, [SDE.MCG]Environmental Sciences/Global Changes
Abstract

Palaeolithic rock art belongs to the most ancient artistic representations of human beings. Famous examples are the Altamira and Lascaux paintings. These paintings are conserved under very exceptional conditions. Basically, the pigments are composed of iron oxides or ochre for red and yellow paints, and charcoal and manganese oxides for black colors. Many studies have already been devoted to the characterization of the employed pigments, their treatment prior to application and the artistic techniques (Baffier et al. 1999, Pomiès et al. 1999, Chalmin et al. 2003 and 2004). However, rock art is today threatened by numerous alteration phenomena, among them the formation and interaction with calcium carbonate concretions. The cave “Grande Grotte” of Arcy-sur-Cure (24500-28000 BP, Yonne, France) with prehistoric paintings is particularly concerned by this problem. This cave is generally known for its impressive calcite speleothems as stalactites and stalagmites. Important calcite concretions also cover the walls. Basically, two types of calcite have been observed on the walls: translucent yellowish layers and opaque white or grey layers. Other calcite types are present in the lakes of the cave (floating calcite rafts at the surface of the lake and soft calcite at the bottom of the lake). Prehistoric figures were discovered in 1990 after a cleaning of the dark walls, fouled during several centuries of visits, of this karst cave with an acidic solution,. In the past, the presence of the calcite layers on the walls had a protective effect of the prehistoric paints. Today, prehistorians try to identify the ensemble of prehistoric representations in the cave. So, identification and restoration of a part of the cave paintings has been done by removing the opaque white calcite layer by mechanical abrasion while keeping another underlying translucent layer, in order to evidence and to study the paintings (Girard et al., 2001).

Published
2006

40. Study of calcite formation on Palaeolithic cave paintings : The case of Arcy-sur-Cure ' Grande Grotte ' ( 28000 BP Yvonne, France )

Author

Reiche, I., Chalmin, Emilie, Menu, M., Charlet, Laurent, D' Orlié, F., Zinger, Lucie, Geremia, R. A., Baffier, Dominique, Orial, Geneviève, Girard, M., Foray, Charlotte, ean-François Moreau, Réginald Auger, Jacques Chabot, Anja Herzog, Centre de recherche et de restauration des musées de France (C2RMF), Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture et de la Communication (MCC), European Synchrotron Radiation Facility (ESRF), Laboratoire de Géophysique Interne et Tectonophysique (LGIT), Laboratoire Central des Ponts et Chaussées (LCPC)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecologie Alpine (LECA), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Directions régionales des affaires culturelles (DRAC), Ministère de la Culture et de la Communication (MCC), Laboratoire de recherche des monuments historiques (LRMH), Centre de Recherche sur la Conservation (CRC ), Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture et de la Communication (MCC)-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture et de la Communication (MCC), Centre d'Études Préhistoire, Antiquité, Moyen-Age (CEPAM), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Laboratoire Central des Ponts et Chaussées (LCPC)-Institut des Sciences de la Terre (ISTerre), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-PRES Université de Grenoble-Institut de recherche pour le développement [IRD] : UR219-Institut national des sciences de l'Univers (INSU - CNRS)-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-PRES Université de Grenoble-Institut de recherche pour le développement [IRD] : UR219-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA), Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), and Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDE.MCG] Environmental Sciences/Global Changes, [SDE.MCG]Environmental Sciences/Global Changes
Abstract

International audience; Palaeolithic rock art belongs to the most ancient artisitc representations of human beings. Conserved under very exceptional conditions, it is today threatened by numerous alteration phenomena, among them the formation and interaction with calium carbonate concretions. The cave “Grande Grotte” of Arcy-sur-Cure (Yonne, France) with prehistoric paintings shows important calcite concretions. Two types of calcite have been observed on the walls: translucent yellowish layers and opaque white or grey layers that obscure the paintings. Other calcite types are present in the lakes of the cave (floating calcite rafts at the surface of the lake and soft calcite at the bottom of the lake). The morphology of the different calcites was observed at different scales by optical microscopy with normal and polarized light, SEM and TEM. The elemental composition was measured by micro-PIXE and the structure by XRD, IR and Raman spectroscopy. The bacterial diversity and its role in calcite formation were assessed by culture and 16S-SSCP in order to distinguish and to assess various abiotic and biotic formation mechanisms. The investigation of calcite characteristics enables conclusions on the formation mechanism and on a biotic or abiotic origin of the calcites. The change of calcite types on the walls reveals changes of the environmental cave parameters. In addition, interactions of calcites with the prehistoric paint layer could be evaluated.

Published
2006

46. Molecular genetics of male infertility: Stem cell factor/c-kit system

Author

Grimaldi, P, Rossi, P, DOLCI IANNINI, S, Ripamonti, C, and Geremia, R

Subjects
Male, animal cell, male infertility, Mice, stem cell factor, Cyclic AMP, Proto-Oncogene Protein c-kit, animal, genetics, gene mutation, Non-U.S. Gov't, fertility, Settore BIO/16, azoospermia, article, genetic screening, autosome, Sertoli cell, genetic code, Proto-Oncogene Proteins c-kit, female, priority journal, idiopathic disease, Promoter Regions (Genetics), Support, phosphodiesterase inhibitor, cyclic AMP derivative, follitropin, Human, isobutylmethylxanthine, phorbol 13 acetate 12 myristate, tyrosine, cyclic AMP, stem cell factor receptor, animal experiment, animal model, cell proliferation, cell type, codon, genetic transcription, heredity, human, major clinical study, male, molecular genetics, mouse, nonhuman, oncogene c kit, pleiotropy, protein expression, spermatogenesis, spermatogonium, metabolism, mutation, physiology, promoter region, Animal, Infertility, Male, Mutation, Sertoli Cells, Spermatogenesis, Spermatogonia, Stem Cell Factor, Support, Non-U.S. Gov't, Animals, Humans, Infertility
Published
2002

50. Biochemical characterization of the beta-1,4-glucuronosyltransferase GelK in the gellan gum-producing strain Sphingomonas paucimobilis A.T.C.C. 31461

Author

Videira, P, Fialho, A, Geremia, R A, Breton, C, and Sá-Correia, I

Subjects
Sequence Homology, Amino Acid, Molecular Sequence Data, Polysaccharides, Bacterial, N-Acetylglucosaminyltransferases, Sphingomonas, Protein Structure, Tertiary, Transformation, Genetic, Bacterial Proteins, Models, Chemical, Escherichia coli, Amino Acid Sequence, Cloning, Molecular, Glucuronosyltransferase, Glycolipids, Conserved Sequence, Research Article, Bacterial Outer Membrane Proteins
Abstract

Biosynthesis of bacterial polysaccharide-repeat units proceeds by sequential transfer of sugars, from the appropriate sugar donor to an activated lipid carrier, by committed glycosyltransferases (GTs). Few studies on the mechanism of action for this type of GT are available. Sphingomonas paucimobilis A.T.C.C. 31461 produces the industrially important polysaccharide gellan gum. We have cloned the gelK gene from S. paucimobilis A.T.C.C. 31461. GelK belongs to family 1 of the GT classification [Campbell, Davies, Bulone, Henrissat (1997) Biochem. J. 326, 929-939]. Sequence similarity studies suggest that GelK consists of two protein modules corresponding to the -NH(2) and -CO(2)H halves, the latter possibly harbouring the GT activity. The gelK gene and the open reading frames coding for the -NH(2) (GelK(NH2)) and -CO(2)H (GelK(COOH)) halves were overexpressed in Escherichia coli. GelK and GelK(NH2) were present in both the soluble and membrane fractions of E. coli, whereas GelK(COOH) was only present in the soluble fraction. GelK catalysed the transfer of [(14)C]glucuronic acid from UDP-[(14)C]glucuronic acid into a glycolipid extracted from S. paucimobilis or E. coli, even in the presence of EDTA, and the radioactive sugar was released from the glycolipid by beta-1,4-glucuronidase. GelK was not able to use synthetic glucosyl derivatives as acceptors, indicating that the PP(i)-lipid moiety is needed for enzymic activity. Recombinant GelK(NH2) and GelK(COOH) did not show detectable activity. Based on the biochemical characteristics of GelK and on sequence similarities with N-acetylglucosaminyltransferase, we propose that GT families 1 and 28 form a superfamily.

Published
2001

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