NDLI: Multigenic expression analysis as an approach to understanding the behaviour of Oenococcus oeni in wine-like conditions.

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Multigenic expression analysis as an approach to understanding the behaviour of Oenococcus oeni in wine-like conditions.

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Multigenic expression analysis as an approach to understanding the behaviour of Oenococcus oeni in wine-like conditions.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Olguín, Nair Bordons, Albert Reguant, Cristina
Description	Country affiliation: Spain Author Affiliation: Olguín N ( Departament de Bioquímica i Biotecnologia, Facultat d'Enologia, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n 43007, Tarragona, Catalonia, Spain.)
Abstract	The correct performance of wine malolactic fermentation (MLF) depends on the metabolic characteristics of the Oenococcus oeni strain/s responsible for this process. This study characterizes four O. oeni strains, which behave differently in terms of malolactic performance, the citric acid use related to acetic acid production, and stress adaptation. Metabolic evolution and its associated enzymatic activities were studied and the transcriptional response of the genes related to MLF, citrate metabolism and stress response was compared among strains. A higher initial expression of both the malolactic enzyme and the encoding gene mleA may be related to faster MLF. The initial transcriptional levels of citrate lyase (citE) proved indicative of early citrate consumption. Moreover, the strains that performed best in wine-like conditions presented a much higher relative expression of several stress responsive genes, particularly hsp18, clpP, ctsR and rmlB. Finally, an inter-strain comparison of the transcriptional levels of selected genes at different times during MLF proved a useful tool in characterizing strains based on their metabolic behaviour.
File Format	HTM / HTML
ISSN	01681605
Issue Number	1
Volume Number	144
e-ISSN	18793460
Journal	International Journal of Food Microbiology
Language	English
Publisher	Elsevier
Publisher Date	2010-11-15
Publisher Place	Netherlands
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Wine Research Support, Non-u.s. Gov't Discipline Microbiology Microbiology Stress, Physiological Gene Expression Profiling Metabolism Fermentation Reverse Transcriptase Polymerase Chain Reaction Journal Article Growth & Development Oenococcus Genetics Discipline Nutritional Sciences Gene Expression Regulation, Bacterial Malates Enzymology Citric Acid
Content Type	Text
Resource Type	Article
Subject	Medicine Microbiology Safety, Risk, Reliability and Quality Food Science

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Multigenic expression analysis as an approach to understanding the behaviour of Oenococcus oeni in wine-like conditions.

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