Identification of Diploids of Aspergillus flavus by the Nuclear Condition of Conidia

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Abstract
Observations indicate that somatic diploid isolates of A. flavus can be readily distinguished from haploid ones on the basis of their uninucleate conidia. Binucleate conidia are easily observed among uninucleate ones even in isolates with a very low percentage of binucleate conidia. Thus, one should be able to determine whether a particular isolate is diploid or haploid by scanning a single stained slide culture of that isolate. Measurements of conidial diameters cannot be used as a method of identification for this species because of the wide variation in size with overlap among diploid and haploid isolates.

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