1887

Abstract

The addition of K and Na salts to cultures of potentiated the effect of carbon dioxide (CO) in stimulating hyphal growth and delaying sporulation; the salts had virtually no effect in the absence of CO. The maximum production of these effects required the same minimum concentration, about 50 m-equiv. cation/l., of a comparably wide range of salts, as did maximum alteration of the chemotactic response of the zoospores to CO. It is suggested that there may be a common mechanism by which salts sensitize both the zoospores and the growing stages to CO. If these reactions are induced by the salts and CO in the skin of infected sheep, they would partly account for the observed rapidity of both hyphal penetration and the emergence of zoospores.

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/content/journal/micro/10.1099/00221287-37-3-403
1964-12-01
2020-01-17
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