The phototrophic consortium "Chlorochromatium aggregatum" - a model for bacterial heterologous multicellularity.

The phototrophic consortium "Chlorochromatium aggregatum" - a model for bacterial heterologous multicellularity.
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光养群落“Chlorochromatiumaggregatum”——细菌异源多细胞模型

DOI:
10.1007/978-1-4419-1528-3_2
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发表时间:
2010
影响因子:
--
通讯作者:
Overmann
Overmann
中科院分区:
医学4区
文献类型:
--
作者:
Overmann

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光养聚生体是目前原核生物种间关系最发达的类群,由绿色硫细菌外生体组成,外生体围绕着一个能动的化能营养细菌。几个独立的实验结果表明,一个快速的信号传递之间发生的epibions和中央细菌。首先,伴侣细菌的细胞分裂以高度协调的方式发生。第二,聚生体在光中以暗适应的方式积累,由此中心细菌赋予聚生体运动性,而表生体充当光传感器。第三,中央细菌的有机碳吸收似乎是由表生体控制的。十年前,可以建立和维持光养财团“Chlorochromatium aggregatum”的实验室培养。使用“C. aggregatum”,最近的基因组学、转录组学和蛋白质组学研究已经开始揭示该模型系统中原核异源多细胞性的分子基础。
Phototrophic consortia currently represent the most highly developed interspecific association between prokaryotes and consist of green sulfur bacterial epibionts which surround a central, motile, chemotrophic bacterium. Several independent experimental findings indicate that a rapid signal transfer occurs between the epibionts and the central bacterium. First, the cell division of the partner bacteria occurs in a highly coordinated fashion. Second, consortia accumulate scotophobotactically in the light, whereby the central bacterium confers motility to the consortium and the epibionts act as light sensors. Third, the organic carbon uptake of the central bacterium seems to be controlled by the epibiont. A decade ago, a laboratory culture of the phototrophic consortium “Chlorochromatium aggregatum” could be established and maintained. Using “C. aggregatum,” recent genomic, transcriptomic, and proteomic studies have started to unravel the molecular basis of prokaryotic heterologous multicellularity in this model system.
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