Fiedurek J, Ilczuk Z
Acta Microbiol Pol. 1987;36(1-2):53-60.
From conidia of 4 different auxotrophic A. niger strains 400 spontaneous revertants (100 from each strain) were obtained, and in one case additionally 100 revertants induced by mutagens (UV+NTG). The revertants showed a considerable differentiation with regard to the total pectinolytic activity. Its highest increase occurred in revertants originating from auxotrophs greatly predisposed to synthesize pectinases. In the case of revertants induced by mutagenes an increase in the frequency of their formation was observed, as well as an increased participation of revertants with higher pectinolytic activity compared to both their initial auxotrophic and prototrophic strain.
从4种不同营养缺陷型黑曲霉菌株的分生孢子中获得了400个自发回复突变体（每种菌株100个），并且在一种情况下还获得了100个由诱变剂（紫外线+亚硝基胍）诱导产生的回复突变体。这些回复突变体在总果胶分解活性方面表现出相当大的差异。其最大增幅出现在源自极易合成果胶酶的营养缺陷型的回复突变体中。在诱变剂诱导的回复突变体的情况下，观察到它们形成频率的增加，以及与它们最初的营养缺陷型和原养型菌株相比，具有较高果胶分解活性的回复突变体的参与度增加。
