1887

Abstract

SUMMARY

Cysteine appeared to have two classes of growth inhibitory effect on :

(1)Above 0·2 m it inhibited growth on minimal medium by a mechanism which may involve interference with leucine, isoleucine, threonine and valine biosynthesis;

(2)above 2 m, in media with these amino acids, it had an effect which may involve interaction with membrane bound respiratory enzymes.

Cysteamine showed only effect (2).

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1971-11-01
2022-01-29
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