Physiological properties of the cladosarum-like mutant 22B of Aspergillus aureolatus

S U M M A R YThe ultrastructure of conidium formation in a wild-type, and in a temperaturesensitive and osmotic-remedial strain of Aspergillus aureolatus has been studied. In the mutant 2 2~ the development of true conidia was blocked at non-permissive conditions. The conidial chain elongation was basipetal in the wild-type and apical in the mutant. The result of the apical elongation was a simple or a branched chain of undifferentiated conidia, encompassed by a thin single-layered non-pigmented wall, which were limited by septa with open pores. The last, or two last, elements in the chain were potential conidia, because if the temperature was lowered they could develop into true conidia. Their wall could complete the process of thickening and appeared three-layered. The outer wall layer acquired ornaments and pigment, and the septa1 pore was occluded.

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Physiological properties of the cladosarum-like mutant 22B of Aspergillus aureolatus

Cited by 3 publications

References 23 publications

Dimorphic and yeast-like mutants of the genusCephalosporium Cda

Dimorphic and yeast-like mutants of the genusCephalosporium Cda

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A Comparative Ultrastructural Study on Conidium Differentiation in the Cladosarum-like Mutant 22B of Aspergillus aureolatus

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