大肠杆菌对渗透压升高表现出两种行为反应。
Escherichia coli shows two types of behavioral responses to osmotic upshift.
作者信息
Li C, Adler J
机构信息
Program in Cell and Molecular Biology, College of Agricultural and Life Sciences, University of Wisconsin-Madison 53706.
出版信息
J Bacteriol. 1993 May;175(9):2564-7. doi: 10.1128/jb.175.9.2564-2567.1993.
Abstract
Behavioral responses to osmotic upshift were characterized by temporal assays of free-swimming cells of Escherichia coli. Small osmotic upshifts (200 to 300 mosM) elicited tumble responses which were chemotaxis dependent, while large osmotic upshifts (400 to 500 mosM) elicited stopping followed by pseudotumbling which was chemotaxis independent.
摘要
通过对大肠杆菌自由游动细胞的时间测定来表征对渗透压升高的行为反应。小的渗透压升高（200至300毫渗摩尔）引发的翻滚反应依赖于趋化作用，而大的渗透压升高（400至500毫渗摩尔）则引发停止反应，随后是不依赖于趋化作用的假翻滚。
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