Affiliation:
1. Department of Biology, Princeton University, Princeton, New Jersey 08540
Abstract
An unknown substance found in bacteria (
Escherichia coli
) is especially effective in attracting the vegetative amoebae of the cellular slime mold,
Dictyostelium discoideum
. However, the aggregating amoebae are not attracted to it at all. On the other hand, the vegetative amoebae show very little chemotactic response to cyclic adenosine monophosphate (cyclic AMP), whereas the aggregating amoebae are exceptionally responsive to it. It is suggested that the new factor may be used in food seeking, whereas cyclic AMP, the chemotactic substance responsible for aggregation, is the acrasin of this species. The important point is that the amoebae are differentially stage-specific in their responses to these two chemotactic agents.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
Cited by
61 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献