大肠杆菌中的渗透趋性。
Osmotaxis in Escherichia coli.
作者信息
Li C, Boileau A J, Kung C, Adler J
机构信息
Department of Biochemistry, University of Wisconsin, Madison 53706.
出版信息
Proc Natl Acad Sci U S A. 1988 Dec;85(24):9451-5. doi: 10.1073/pnas.85.24.9451.
The escape of motile organisms from high concentrations of chemicals was studied in Escherichia coli. We have found all chemicals tested to be osmorepellents. It was shown in both a spatial assay and a temporal assay that the known sensory receptors for chemotaxis are not used for osmotaxis, so a different sensory mechanism appears to be employed. According to the temporal assay, the mechanism between sensory receptors and flagella is also not used for tumbling response (at least in solutions above 0.4 osmolar).
在大肠杆菌中研究了运动性生物体从高浓度化学物质中逃逸的现象。我们发现所有测试的化学物质都是渗透排斥剂。在空间试验和时间试验中均表明，已知的趋化性感觉受体不用于渗透趋性，因此似乎采用了不同的感觉机制。根据时间试验，感觉受体和鞭毛之间的机制也不用于翻滚反应（至少在渗透压高于0.4的溶液中）。
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