1887

Abstract

SUMMARY: Series of experiments were carried out both and on single conidial isolates of and . Relationships between colony type and sporulation were apparent in both species. In addition, isolates of showed relationships between degree of resistance of host source, width of host range and stability of cultural characters and pathogenicity during storage in culture. Isolates of showed no such relationships, cultural characters being invariably stable while pathogenicity rapidly declined in the storage conditions. Studies of nutritional requirements suggested no deficiencies in the synthetic abilities of either pathogen, but limiting nutritional factors were important. Isolates of both species which differed widely in pathogenicity and other characteristics, reacted similarly to various culture media.

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/content/journal/micro/10.1099/00221287-16-2-360
1957-04-01
2019-10-15
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