Behavioral studies into the mechanism of eukaryotic chemotaxis
Behavioral studies into the mechanism of eukaryotic chemotaxis
复制标题
真核生物趋化机制的行为研究
DOI:
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发表时间:
2005
影响因子:
2.3
通讯作者:
D. Soll
中科院分区:
文献类型:
--
作者:
D. Soll
Recent behavioral studies designed to elucidate the mechanism of chemotaxis to cAMP in the eukaroyteDictyostelium discoideum are reviewed. In these studies, ambae were analyzed by the newly developed, computer-assisted dynamic morphology system while (1) chemotaxing in a spatial gradient of cAMP, (2) responding to repeated temporal waves of cAMP in the absence of a spatial gradient in a Sykes-Moore chamber, and (3) responding to rapid shifts in cAMP concentration. It is demonstrated that eukaryotic amebae do indeed have the capacity to assess the direction of a temporal gradient, which indicates that they must have a “memory” system for this purpose. It is also demonstrated that amebae regulate behavior in spatial and temporal gradients of chemoattractant through changes in: (1) velocity; (2) frequency of pseudopod formation; and (3) frequency of turning. Analogies to the bacterial system are apparent.
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影响因子:
--
作者:
Varnum-Finney,B;Schroeder,NA;Soll,DR
通讯作者:
Soll,DR
影响因子:
2.7
作者:
WESSELS, D;SOLL, DR;SPUDICH, J
通讯作者:
SPUDICH, J
影响因子:
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作者:
Varnum-Finney,BJ;Voss,E;Soll,DR
通讯作者:
Soll,DR
影响因子:
56.9
作者:
TOMCHIK, KJ;DEVREOTES, PN
通讯作者:
DEVREOTES, PN
影响因子:
--
作者:
Varnum-Finney,B;Edwards,KB;Voss,E;Soll,DR
通讯作者:
Soll,DR