1887

Abstract

SUMMARY

Mutants of and are described which are inhibited by CO at concentrations which do not inhibit the parental strains from which the mutants were derived. Sensitivity to inhibition by CO is caused by single gene mutations. The CO inhibitions are reversed by specific substances; for example, the CO inhibition of a methionine-requiring mutant of is reversed by purines, and the COinhibition of a prototroph of is reversed by methionine or vitamin B.

The nature of the defects in the CO-inhibited mutants is discussed.

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1970-09-01
2022-01-22
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