Effect of Temperature on Growth of Psychrophilic and Psychrotrophic Members of Rhodotorula Aurantiaca
[en] The thermo-dependence of growth kinetic parameters was investigated for the Antarctic psychrophilic strain Rhodotorula aurantiaca and a psychrotrophic strain of the same species isolated in Belgium (Ardennes area). Cell production, maximum growth rate (mu max), and half-saturation constant for...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/219328 2023-05-15T13:47:16+02:00 Effect of Temperature on Growth of Psychrophilic and Psychrotrophic Members of Rhodotorula Aurantiaca Sabri, A. Jacques, P. Weekers, Frédéric Bare, G. Hiligsmann, Serge Moussaif, M. Thonart, P. 2000 No full-text files local/http://hdl.handle.net/2268/6388 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/219328 en eng uri/info:doi/10.1385/ABAB:84-86:1-9:391 local/http://hdl.handle.net/2268/6388 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/219328 Applied biochemistry and biotechnology, 84-86 (Spring Biotechnologie Sciences du vivant info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2000 ftunivbruxelles 2022-06-12T21:27:52Z [en] The thermo-dependence of growth kinetic parameters was investigated for the Antarctic psychrophilic strain Rhodotorula aurantiaca and a psychrotrophic strain of the same species isolated in Belgium (Ardennes area). Cell production, maximum growth rate (mu max), and half-saturation constant for glucose uptake (Ks) of both yeasts were temperature dependent. For the two yeasts, a maximum cell production was observed at about 0 degree C, and cell production decreased when temperature increased. The mu max values for both strains increased with temperature up to a maximum of 10 degrees C for the psychrophilic strain and 17 degrees C for the psychrotrophic strain. For both yeasts, Ks for glucose was relatively constant at low temperatures. It increased at temperatures above 10 degrees C for the psychrophilic strain and 17 degrees C for the psychrotrophic strain. Although its glucose affinity was lower, the psychrotrophic strain grew more rapidly than the psychrophilic one. The difference in growth rate and substrate affinity was related to the origin of the strain and the adaptation strategy of R. aurantiaca to environmental conditions. info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic The Antarctic |
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Open Polar |
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DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
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ftunivbruxelles |
language |
English |
topic |
Biotechnologie Sciences du vivant |
spellingShingle |
Biotechnologie Sciences du vivant Sabri, A. Jacques, P. Weekers, Frédéric Bare, G. Hiligsmann, Serge Moussaif, M. Thonart, P. Effect of Temperature on Growth of Psychrophilic and Psychrotrophic Members of Rhodotorula Aurantiaca |
topic_facet |
Biotechnologie Sciences du vivant |
description |
[en] The thermo-dependence of growth kinetic parameters was investigated for the Antarctic psychrophilic strain Rhodotorula aurantiaca and a psychrotrophic strain of the same species isolated in Belgium (Ardennes area). Cell production, maximum growth rate (mu max), and half-saturation constant for glucose uptake (Ks) of both yeasts were temperature dependent. For the two yeasts, a maximum cell production was observed at about 0 degree C, and cell production decreased when temperature increased. The mu max values for both strains increased with temperature up to a maximum of 10 degrees C for the psychrophilic strain and 17 degrees C for the psychrotrophic strain. For both yeasts, Ks for glucose was relatively constant at low temperatures. It increased at temperatures above 10 degrees C for the psychrophilic strain and 17 degrees C for the psychrotrophic strain. Although its glucose affinity was lower, the psychrotrophic strain grew more rapidly than the psychrophilic one. The difference in growth rate and substrate affinity was related to the origin of the strain and the adaptation strategy of R. aurantiaca to environmental conditions. info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Sabri, A. Jacques, P. Weekers, Frédéric Bare, G. Hiligsmann, Serge Moussaif, M. Thonart, P. |
author_facet |
Sabri, A. Jacques, P. Weekers, Frédéric Bare, G. Hiligsmann, Serge Moussaif, M. Thonart, P. |
author_sort |
Sabri, A. |
title |
Effect of Temperature on Growth of Psychrophilic and Psychrotrophic Members of Rhodotorula Aurantiaca |
title_short |
Effect of Temperature on Growth of Psychrophilic and Psychrotrophic Members of Rhodotorula Aurantiaca |
title_full |
Effect of Temperature on Growth of Psychrophilic and Psychrotrophic Members of Rhodotorula Aurantiaca |
title_fullStr |
Effect of Temperature on Growth of Psychrophilic and Psychrotrophic Members of Rhodotorula Aurantiaca |
title_full_unstemmed |
Effect of Temperature on Growth of Psychrophilic and Psychrotrophic Members of Rhodotorula Aurantiaca |
title_sort |
effect of temperature on growth of psychrophilic and psychrotrophic members of rhodotorula aurantiaca |
publishDate |
2000 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/219328 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Applied biochemistry and biotechnology, 84-86 (Spring |
op_relation |
uri/info:doi/10.1385/ABAB:84-86:1-9:391 local/http://hdl.handle.net/2268/6388 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/219328 |
_version_ |
1766246840331665408 |