The Xanthomonas citri Reverse Fitness Deficiency by Activating a Novel beta-Glucosidase Under Low Osmostress

文献类型： 外文期刊

第一作者： Li, Kaihuai

作者： Li, Kaihuai;Liao, Jinxing;Wei, Ming;Qiu, Shanxu;Wu, Weiyin;Liu, Qiongguang;Chang, Changqing;Chang, Changqing;Li, Kaihuai;Zhao, Yancun;Liu, Fengquan;Wang, Haihong

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关键词： low osmostress; physiological deficiencies; beta-glucosidase; Xanthomonas citri pv; citri; bacterial cell growth

期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：6.064； 五年影响因子：6.843 ）

ISSN：

年卷期： 2022 年 13 卷

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收录情况： SCI

摘要： Bacteria can withstand various types of environmental osmostress. A sudden rise in osmostress affects bacterial cell growth that is countered by activating special genes. The change of osmostress is generally a slow process under the natural environment. However, the collective response of bacteria to low osmostress remains unknown. This study revealed that the deletion of phoP (delta phoP) from X. citri significantly compromised the growth and virulence as compared to the wild-type strain. Interestingly, low osmostress reversed physiological deficiencies of X. citri phoP mutant related to bacterial growth and virulence. The results also provided biochemical and genetic evidence that the physiological deficiency of phoP mutant can be reversed by low osmostress induced beta-glucosidase (BglS) expression. Based on the data, this study proposes a novel regulatory mechanism of a novel beta-glucosidase activation in X. citri through low osmostress to reverse the fitness deficiency.

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