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A Pictorial Guide for the Identification of Mold ... - OAR@ICRISAT

A Pictorial Guide for the Identification of Mold ... - OAR@ICRISAT

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Aspergillus flavus Link<br />

Symptoms on grain. Colony on seed is usually spreading and very light yellow-green, deep<br />

yellow-green, olive brown, or brown (Fig. 18a). Conidiophores are swollen apically and bear<br />

numerous conidia-bearing cells (phialides) with conidia in long, dry chains. Conidial heads are<br />

typically spherical, splitting into several poorly defined columns, rarely exceeding 500-600 μm<br />

diameter, but mostly 300-400 μm (Fig. 18b).<br />

(Note: Severely infected sorghum grains are discolored and shrivelled.)<br />

Morphology. Conidiophores are heavy walled, hyaline, coarsely roughened, and usually<br />

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