Reports

Temperature Sensitivity: A Cell Character Determined by Obligate Endosymbionts in Amoebas

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Science  10 Nov 1978:
Vol. 202, Issue 4368, pp. 635-637
DOI: 10.1126/science.202.4368.635

Abstract

A strain of Amoeba proteus has lost its ability to survive at temperatures above 26°C as a result of becoming dependent on endosymbiotic bacteria that are psychrophile-like. The observed temperature sensitivity develops in fewer than 200 host cell generations (18 months of culture) after the host cells are experimentally infected with the symbionts.