Asynchronous division by non-ring FtsZ in the gammaproteobacterial symbiont of Robbea hypermnestra
Asynchronous division by non-ring FtsZ in the gammaproteobacterial symbiont of Robbea hypermnestra
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DOI：
10.1038/nmicrobiol.2016.182
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发表时间：
2017-01-01
影响因子：
28.3
通讯作者：
Bulgheresi, Silvia
中科院分区：
文献类型：
--
作者：
Leisch, Nikolaus;Pende, Nika;Bulgheresi, Silvia
不可培养的微生物的繁殖方式值得研究，因为它可以在很大程度上偏离传统的横向二分裂。在这里，我们表明，棒形gammaproteobacterium蓬勃发展的Robbea hypermnestra线虫的表面划分FtsZ为基础的，非同步内陷的两极，也就是说，主机连接和菌毛丰富的极内陷早于远端。我们的结论是，在一个自然发生的动物共生体，二进制裂变是面向主机，并不需要本地FtsZ到一个环中的任何分隔阶段。
The reproduction mode of uncultivable microorganisms deserves investigation as it can largely diverge from conventional transverse binary fission. Here, we show that the rod-shaped gammaproteobacterium thriving on the surface of the Robbea hypermnestra nematode divides by FtsZ-based, non-synchronous invagination of its poles-that is, the host-attached and fimbriae-rich pole invaginates earlier than the distal one. We conclude that, in a naturally occurring animal symbiont, binary fission is host-oriented and does not require native FtsZ to polymerize into a ring at any septation stage.