1887

Abstract

Summary: (E1 Agheila Z), in lactate + sulphate media, required 10 mmole Fe/ml. for optimal growth; no absolute iron requirement was demonstrable in pyruvate + sulphate media but iron up to 20 mmole/ml. stimulated growth. In a sulphate-deficient pyruvate medium, in which this strain can grow, iron was not required nor did it stimulate growth. Organisms grown with limited iron formed limited amounts of cytochrome , and in the absence of iron were markedly deficient in this; their content of hydrogenase was reduced to a lesser extent and their content of desulphoviridin was only halved. Iron-deficient organisms were able to reduce sulphate only slowly. Less than 1 % of the iron added to cultures was accounted for as cytochrome , though only some 6 % of this iron remained in solution after growth.

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/content/journal/micro/10.1099/00221287-15-1-186
1956-08-01
2022-01-28
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