液化沙雷氏菌群游细胞对嗜热四膜虫的捕食表现出更强的抗性。

Serratia liquefaciens swarm cells exhibit enhanced resistance to predation by Tetrahymena sp.

作者信息

Ammendola A, Geisenberger O, Andersen J B, Givskov M, Schleifer K H, Eberl L

机构信息

Lehrstuhl für Mikrobiologie, Technische Universität, München, Germany.

出版信息

FEMS Microbiol Lett. 1998 Jul 1;164(1):69-75. doi: 10.1111/j.1574-6968.1998.tb13069.x.

DOI:10.1111/j.1574-6968.1998.tb13069.x

PMID:9675853

Abstract

Tetrahymena sp. was found to graze extensively on Serratia liquefaciens MG1 swim cells (1.5-3 microns long rods) resulting in the rapid elimination of the bacterial strain. However, when S. liquefaciens cells are exposed to certain surfaces they differentiate into elongated, highly motile swarm cells and these cells were found to be grazing-resistant provided their length exceeded 15 microns.

摘要

发现嗜热四膜虫大量捕食液化沙雷氏菌MG1游动细胞（1.5 - 3微米长的杆状细胞），导致该细菌菌株迅速被清除。然而，当液化沙雷氏菌细胞接触某些表面时，它们会分化成长而高度游动的群体细胞，并且发现只要这些细胞长度超过15微米，就具有抗捕食能力。