Survey of postharvest fungi associated with sorghum grains produced in Karnataka (India)
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Department of Studies in Microbiology, University of Mysore, Manasagangotri, Mysore 70 006, Karnataka, India
Molecular Phytodiagnostic Laboratory, Department of Studies in Botany, University of Mysore, Manasagangotri, Mysore 570 006, Karnataka, India
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Janardhana Gottravalli Ramanayaka
Molecular Phytodiagnostic Laboratory, Department of Studies in Botany, University of Mysore, Manasagangotri, Mysore 570 006, Karnataka, India
Journal of Plant Protection Research 2010;50(3):335-339
Sorghum is an important cereal produced as staple diet in Karnataka state of India and is prone to fungal infection during pre- and postharvest period. This paper reports the frequency and relative percentage of fungi associated with sorghum grain harvested in Karnataka State in 2004 and 2005. A total of 44 sorghum samples were analyzed for postharvest fungi by direct plating method on PDA and MGA 2.5 agar medium. The genera Fusarium and Aspergillus were the most frequently isolated on sorghum grain. The other genera included Alternaria, Phoma, Curvularia, Penicillium and Drechslera. The data revealed a high frequency of Fusarium species (93.2%) and Aspergillus species (88.6%) with a relative percentage of 23.3 and 19.6% among the 19 fungal genera recorded, respectively. The predominant fungal species recorded at high frequency were F. verticillioides (88.6%), A. flavus (72.7%), F. anthophilum (65.0%), A. niger (59.1%). These data indicate possible health hazards for humans and animals upon consumption of such contaminated food grain by toxigenic moulds.
The authors have declared that no conflict of interests exist.
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