pH-dependent gas vesicle formation in Microcystis

被引：12

作者：

Gao, Hong ^{[1
]}

Zhu, Tao ^{[1
]}

Xu, Min ^{[1
]}

Wang, Shuai ^{[1
]}

Xu, Xudong ^{[1
]}

Kong, Renqiu ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan, Hubei, Peoples R China

来源：

FEBS LETTERS | 2016年 / 590卷 / 18期

基金：

中国国家自然科学基金;

关键词：

buoyancy; gas vesicle protein; Microcystis; mRNA decay; pH; PCC; 6803; CYANOBACTERIUM MICROCYSTIS; INORGANIC CARBON; LAKE; PHYTOPLANKTON; AERUGINOSA; DOMINANCE; DIVERSITY; DEPLETION; BUOYANCY;

D O I：

10.1002/1873-3468.12370

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

In lakes with seasonal cyanobacterial blooms, the pH fluctuates from slightly above 7 to around 10. In this study, we found that the abundance of gas vesicles in Microcystis species, in parallel to the buoyancy of cells, increased in response to elevation of the extracellular pH. Within 48 h after pH upshift, gas vesicle protein genes (gvp) were upregulated at both mRNA and protein levels due to reduced decay of gvp transcripts. The effect of pH on GvpC level was basically unaffected by inorganic carbon availability. This is the first report that long-term pH range plays a role in controlling gas vesicle formation in certain Microcystis species.

引用

页码：3195 / 3201

页数：7

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