1887

Abstract

SUMMARY: By irradiating with X-rays (AlOC) in the dry state, mutants have been obtained differing from the parent strain in specific growth-factor requirements. About half of the mutants differ from the parent, not in having an absolute requirement for a nutrilite, but in having a longer lag-phase without it.

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/content/journal/micro/10.1099/00221287-5-4-781
1951-12-01
2020-01-28
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