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293 results on '"Deak, T."'

12. Molecular characterization of Yarrowia lipolytica and Candida zeylanoides isolated from poultry

Author

Deak, T., Chen, J., and Beuchat, L.R.

Subjects
Yeast -- Genetic aspects, Poultry -- Contamination, DNA -- Analysis, Molecular microbiology -- Research, Molecular biology -- Methods, Biological sciences
Abstract

Research describes genetic analyses of two yeast strains isolated from poultry meat by various molecular characterization techniques. Data are useful in assessing the biodiversity of the yeast strains and their role in the spoilage.

Published
2000

15. Contributor contact details

Author

Singh, R.P., primary, Anderson, B.A., additional, Esse, R., additional, Saari, A., additional, Taoukis, P.S., additional, Giannakourou, M.C., additional, Schouten, R.E., additional, van Kooten, O., additional, Jalink, H., additional, Kappers, I.F., additional, Snel, J.F.H., additional, Jordi, W., additional, Deak, T., additional, Arnoldi, A., additional, Gordon, M.H., additional, Davies, C., additional, Singh, T.K., additional, Cadwallader, K.R., additional, Betts, G.D., additional, Walker, S.J., additional, Farhat, I.A., additional, Loureiro, V., additional, Malfeito-Ferreira, M., additional, Carreira, A., additional, Irwin, J.W., additional, Hedges, N., additional, Mizrahi, S., additional, Man, C.M.D., additional, Morrissey, P.A., additional, and Kerry, J.P., additional

Published
2004
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31. Unacceptable Levels of Fungi

Author

Mislivec, P. R., Pitt, J. I., Davenport, R. R., Deák, T., Reichart, O., King, A. D., Jr., editor, Pitt, J. I., editor, Beuchat, L. R., editor, and Corry, Janet E. L., editor

Published
1986
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33. Significance of Fungal Populations on Foods (Baseline Counts)

Author

Mossel, D. A. A., Beckers, H. J., King, A. D., Jr, Anderson, C. B., Moberg, L. J., Davenport, R. R., Deák, T., Tabajdi-Pinter, V., Fabri, I., Nagel, V., Seiler, D. A. L., King, A. D., Jr., editor, Pitt, J. I., editor, Beuchat, L. R., editor, and Corry, Janet E. L., editor

Published
1986
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34. Media for Yeasts and Consideration of Injured Cells

Author

Ferguson, R. B., Seiler, D. A. L., Anderson, C. B., Moberg, L. J., Deák, T., Nagel, V., Fabri, I., Beuchat, L. R., Koburger, J. A., Dargan, R. A., King, A. D., Jr., editor, Pitt, J. I., editor, Beuchat, L. R., editor, and Corry, Janet E. L., editor

Published
1986
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35. Selective Media and Procedures

Author

Hocking, A. D., Pitt, J. I., Beuchat, L. R., Frisvad, J. C., Thrane, U., Filtenborg, O., Richard-Molard, D., Ferguson, R. B., Deák, T., Tabajdi-Pinter, V., Nagel, V., Fabri, I., King, A. D., Jr., King, A. D., Jr., editor, Pitt, J. I., editor, Beuchat, L. R., editor, and Corry, Janet E. L., editor

Published
1986
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36. General Purpose Enumeration and Isolation Media

Author

Pitt, J. I., Mossel, D. A. A., Beckers, H. J., de Boer, E., Dijkmann, K. E., Hartog, B. J., van Kooij, J. A., Kuik, D., Mol, N., Nooitgedagt, A. J., Northolt, M. D., Samson, R. A., Lenovich, L. M., Walters, J. L., Reed, D. M., Seiler, D. A. L., Williams, A. P., Hastings, J. W., Tsai, W. Y. J., Bullerman, L. B., Cousin, M. A., Lin, H. H., Jarvis, B., Shapton, N., Kellen, L. A., Smith, T. M., Hannon, C. B., Olson, K. E., Richard-Molard, D., Beuchat, L. R., Deák, T., Tabajdi-Pinter, V., Fabri, I., Török, T., Lehoczki, J., Reichart, O., King, A. D., Jr., editor, Pitt, J. I., editor, Beuchat, L. R., editor, and Corry, Janet E. L., editor

Published
1986
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37. Sample Preparation

Author

Jarvis, B., Shapton, N., Lenovich, L. M., Walters, J. L., Reed, D. M., Tsai, W. Y. J., Bullerman, L. B., Deák, T., Tabajdi-Pinter, V., Fabri, I., King, A. D., Jr, Richard-Molard, D., Mossel, D. A. A., Beuchat, L. R., Anderson, C. B., Moberg, L. J., Seiler, D. A. L., Andrews, S., Frisvad, J. C., Kristensen, A. B., Filtenborg, O., Viuf, B. T., Hastings, J. W., Ferguson, R. B., King, A. D., Jr., editor, Pitt, J. I., editor, Beuchat, L. R., editor, and Corry, Janet E. L., editor

Published
1986
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41. Agrobacterium vitis strains lack tumorigenic ability on in vitro grown grapevine stem segments

Author

Szegedi, E., Deak, T., Forgács, I., Zok, A., and Olah, R.

Subjects
Viticulture
Abstract

Grapevine stem segments were cocultivated with three different Agrobacterium tumefaciens and three different A. vitis strains. A. tumefaciens strains induced tumors at variable frequencies, while A. vitis-infected stem segments never formed crown galls. The tumorous nature of tissues grown on hormone free medium was confirmed by opine assays. Bioinformatic and PCR analysis of the virulence regions of various A. tumefaciens and A. vitis Ti plasmids showed that virH2 and virK genes are common in A. tumefaciens but they are lacking from A. vitis. Thus virH2 and virK genes may be essential for grapevine stem segment transformation, but expression of certain T-DNA genes of A. vitis may also prevent the growth of transformed cells. Our data indicate that the tumorigenic ability of A. vitis is different on intact plant and on their explants, and that the specific host association of A. vitis on grapevine is probably determined by physiological and biochemical factors (e. g., better colonizing ability) rather than by its increased tumorigenic ability. Therefore it is not reasonable to develop „helper” plasmids for grapevine transformation from A. vitis pTis, unless their avirulence on in vitro explants is determined by T-DNA gene(s). Due to the inability of A. vitis to induce tumors on grapevine stem segments, the use of in vitro explant assays cannot be reliably used to select A. vitis resistant grapevine genotypes or transgenic lines., VITIS - Journal of Grapevine Research, Vol. 53 No. 3 (2014): Vitis

Published
2014

48. Methods to identify yeasts

Author

Kurtzman,C.P., Boekhout,T., Robert,V., Fell,J.W., Yarrow,D., Deak,T and Kurtzman,C.P., Boekhout,T., Robert,V., Fell,J.W., Yarrow,D., Deak,T

Published
2003

50. Performance of mycological media in enumerating desiccated food spoilage yeasts : an interlaboratory study

Author

Beuchat, L. R., Frändberg, E., Deak, T., Alzamora, S. M., Chen, J., Guerrero, S., López-Malo, A., Ohlsson, I., Olsen, M., Peinado, J. M., Schnürer, Johan, de Siloniz, M. I., Tornai-Lehoczki, J., Beuchat, L. R., Frändberg, E., Deak, T., Alzamora, S. M., Chen, J., Guerrero, S., López-Malo, A., Ohlsson, I., Olsen, M., Peinado, J. M., Schnürer, Johan, de Siloniz, M. I., and Tornai-Lehoczki, J.

Abstract

Dichloran 18% glycerol agar (DG18) was originally formulated to enumerate nonfastidious xerophilic moulds in foods containing rapidly growing Eurotium species. Some laboratories are now using DG18 as a general purpose medium for enumerating yeasts and moulds, although its performance in recovering yeasts from dry foods has not been evaluated. An interlaboratory study compared DG18 with dichloran rose bengal chloramphenicol agar (DRBC), plate count agar supplemented with chloramphenicol (PCAC), tryptone glucose yeast extract chloramphenicol agar (TGYC), acidified potato dextrose agar (APDA), and orange serum agar (OSA) for their suitability to enumerate 14 species of lyophilized yeasts. The coefficient of variation for among-laboratories repeatability within yeast was 1.39% and reproducibility of counts among laboratories was 7.1%. The order of performance of media for recovering yeasts was TGYC > PCAC = OSA > APDA > DRBC > DG18. A second study was done to determine the combined effects of storage time and temperature on viability of yeasts and suitability of media for recovery. Higher viability was retained at - 18 degreesC than at 5 degreesC or 25 degreesC for up to 42 weeks, although the difference in mean counts of yeasts stored at - 18 degreesC and 25 degreesC was only 0.78 log(10) cfu/ml of rehydrated suspension. TGYC was equal to PCAC and superior to the other four media in recovering yeasts stored at - 18 degreesC, 5 degreesC, or 25 degreesC for up to 42 weeks. Results from both the interlaboratory study and the storage study support the use of TGYC for enumerating desiccated yeasts. DG18 is not recommended as a general purpose medium for recovering yeasts from a desiccated condition.

Published
2001
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