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Advanced Progress on Adaptive stress Response of Oenococcus oeni

Journal of Northeast Agricultural University(English Edition) 2013年第1期20卷 91-96页

作者： Zhao Wen-ying Kang Zhen-kui College of Chemical Engineering and Environment North University of China Tianjiaohong Biotechnology Company

Oenoccoccus oeni is an alcohol-tolerant, acidophilic lactic acid bacterium with its ability to perform malolactic fermentation in wine, which is of fundamental importance in oenology. As a representative of the wine bacterium with remarkable adaptability to the very harsh physicochemical conditions of wine, many studies were carded out for its applied interest and focused mainly on its stress response mechanisms of O. oeni. on both physiological and molecular levels. In this review, three main stress response mechanisms in O. oeni during culturing process were addressed. Of them, various solute transporters and secondary metabolic energy-generating systems were utilized to control the intracellular environment and the energetic status of O. oeni. The changes in cell membrane fatty acid composition profiles and synthesis of stress proteins, especially small heat shock proteins were required for active cell response to maintain membrane integrity and function under stress conditions. The study on stress response of O. oeni played an important role on culture bacteria selection, making inoculation culture and construction of other engineering bacteria.

关键词： Oenococcus oeni stress response acid stress alcohol stress

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