Abstract

A series of pyridine derivatives, 2-methyl-, 2-chloro-, 2-acetyl-, 3-acetyl-, 4-acetyl-, 2-phenyl-, 2,4-dimethyl-, 2,6-dimethyl- and 2-methyl-5-ethyl-pyridine, were shown to induce mitotic aneuploidy in strain D61.M of Saccharomyces cerevisiae. Induction of mitotic recombination was also observed with 3- and 4-acetylpyridine and 2-phenylpyridine in strain D61.M. 4-Acetylpyridine and 2-phenylpyridine were found to induce mitotic gene conversion and 2-phenyl-pyridine also induced reverse mutation in strain D7 of Saccharomyces cerevisiae. These two agents also inhibited the GTP-mediated assembly of porcine brain tubulin in vitro.

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