The fungal flora of post-harvest grains of Sorghum guineense Stapf and their importance in pathogenicity
✍ Scribed by Dr. V. W. Ogundero
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 365 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0233-111X
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✦ Synopsis
The mycoflora of air-dried grains of Sorghum guineense and their importance in pathogenicity were studied. Nine species of both phytopathogens and saprophytic storage fungi were consistently obtained. The pathogenic fungi included Cladosporium vignae GARDNER, Macrophominn phaseolina (TASSI) GOID and Helminthosporium turcicum PASS., while the saprophytes were mostly species of Aspergillus particularly A . flavus LINK, A . fumigatus FRES. and A . niger VAN THIEGREN. Pathogenicity tests showed C. vignae, M . phaseolina and H . turcicum to be seed-borne pathogens of Sorghum guineense and gave symptoms ranging from leafblight to brown spot diseases of the leaves. The ability of the pathogens to produce cell wall-degrading enzymes in vitro wa8 studied while the fungi were shown to grow well a t a wide temperature range of 20"-30 "C.