K+-resistant mutants and “adaptation” in Paramecium

AUTOR(ES)

Shusterman, Cheryl Laffer

RESUMO

A class of mutants of Paramecium tetraurelia has been isolated by adding a critical amount of K+ to mutagenized, autogamized cultures. Adding 35 mM K+ to the medium kills the wild type. The mutants can grow at 35 mM K+ and some survive an addition of up to 80 mM K+. Thirty-three lines of such mutants have been studied. These mutants have few or no behavioral abnormalities in culture medium.

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