Selection for more toxigenic son-thalli or less aflatoxin-producing son-thalli starting from a mother-colony of Aspergillus flavus.
The ability of progeny from either a toxigenic or nontoxigenic thallus to synthesize aflatoxin over several successive generations is determined. This study demonstrates that it is possible to select for more and more toxigenic strains or for less and less active ones starting with the same thallus. Moreover, toxigenic strains can be derived from atoxigenic strains and vice versa by a simple selective operation. Lastly, these various operations have enabled the author to propose a genetic theory for the toxigenesis of Aspergillus flavus.
Tantaoui-Elaraki
A
A
Institut Agronomique et Veterinaire Hassan II, Departement de Microbiologie Alimentaire et Biotechnologie, Rabat-instituts, Morocco.
D000348:Aflatoxins / Q000096:biosynthesis*; D001231:Aspergillus flavus / Q000235:genetics / Q000378:metabolism*; D005800:Genes, Fungal
D000348:Aflatoxins