Incidence of fungi and alfatoxins in Sudanese faba bean seeds
2001
El Nagerabi, S.A.F. (University of Khartoum, Shambat (Sudan). Faculty of Science, Dept. of Botany) | Elshafie, A.E. | Abdalla, A.H.
Fifty six species and eight varieties belonging to 17 genera of fungi were isolated from the seeds of faba bean (Vicia faba L.). Among these isolates, 39 species and 5 varieties are considered new to the reported faba bean seeds mycoflora, whereas one genus and two species are new to known mycoflora of the Sudan. The genus aspergillus (13 species and 5 varieties) is leading among the prevalent genera followed by rhizopus (3 species), fusarium (5 species), alternaria (6 species), curvularia (6 species and one variety), drechslera (2 species), penicillium (5 species) and emericella (4 species and 2 varieties), whereas the remaining 9 genera were encountered in a very low level of contamination. Of the serious pathogens of faba bean plants, frechslera spicifera (2.16%), fusarium oxysporum (3.35%) and phoma herbarium (1.75%) were recovered from the seeds of this crop. Thin layer chromatographic analysis of chloroform extracts of 13 crop seed samples showed that two samples were naturally contaminated with aflatoxins B1, B2, G1 and G2 (10.5-23 ug/kg)
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