Composition of Mycoflora and Aflatoxins in Lupine Seeds from the Sudan

Thirteen seed samples of lupines (Lupinus termis Forrsk.) were evaluated for their phytosanitary status by incubation on potato-dextrose agar (PDA) and moist sterile filter papers (blotter method) at 28±2ºC. The seeds were also assayed for the presence of aflatoxins and toxigenic fungi. Forty-seven...

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Main Authors: Abdulqader Elzein Elshafie, Seifeldin Ahmed Faragalla El Nagerabi
Format: Article
Language:English
Published: Firenze University Press 2007-01-01
Series:Phytopathologia Mediterranea
Online Access:https://oajournals.fupress.net/index.php/pm/article/view/4836
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author Abdulqader Elzein Elshafie
Seifeldin Ahmed Faragalla El Nagerabi
author_facet Abdulqader Elzein Elshafie
Seifeldin Ahmed Faragalla El Nagerabi
author_sort Abdulqader Elzein Elshafie
collection DOAJ
description Thirteen seed samples of lupines (Lupinus termis Forrsk.) were evaluated for their phytosanitary status by incubation on potato-dextrose agar (PDA) and moist sterile filter papers (blotter method) at 28±2ºC. The seeds were also assayed for the presence of aflatoxins and toxigenic fungi. Forty-seven species and 10 varieties in 14 genera of fungi were recovered. Among these, 45 species and 10 varieties were new to lupine seeds, and 5 species and 2 varieties were new to the mycoflora of the Sudan. The genus Aspergillus (10 species, 8 varieties) was the most common, followed by Rhizopus (1 species), Fusarium (6 species) and Alternaria (5 species), while the remaining genera (Chaetomium, Cladosporium, Curvularia, Drechslera, Penicillium, Phoma, Emericella, Mucor, Sclerotium, Ulocladium) displayed lower levels of contamination. Of possible pathogens on lupine plants, Alternaria (5 species) (stem lesion) and F. oxysporum (root rot) were recovered from the seeds. Thin-layer chromatographic analysis of chloroform extracts of the 13 seed samples revealed that two samples contained very low concentrations of aflatoxins B1 and B2 (4.5-6.5 µg/kg).
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spelling doaj.art-0cc1a7c14408414aabd79010fcfabd9b2022-12-21T23:52:51ZengFirenze University PressPhytopathologia Mediterranea0031-94651593-20952007-01-0139210.14601/Phytopathol_Mediterr-15661562Composition of Mycoflora and Aflatoxins in Lupine Seeds from the SudanAbdulqader Elzein ElshafieSeifeldin Ahmed Faragalla El NagerabiThirteen seed samples of lupines (Lupinus termis Forrsk.) were evaluated for their phytosanitary status by incubation on potato-dextrose agar (PDA) and moist sterile filter papers (blotter method) at 28±2ºC. The seeds were also assayed for the presence of aflatoxins and toxigenic fungi. Forty-seven species and 10 varieties in 14 genera of fungi were recovered. Among these, 45 species and 10 varieties were new to lupine seeds, and 5 species and 2 varieties were new to the mycoflora of the Sudan. The genus Aspergillus (10 species, 8 varieties) was the most common, followed by Rhizopus (1 species), Fusarium (6 species) and Alternaria (5 species), while the remaining genera (Chaetomium, Cladosporium, Curvularia, Drechslera, Penicillium, Phoma, Emericella, Mucor, Sclerotium, Ulocladium) displayed lower levels of contamination. Of possible pathogens on lupine plants, Alternaria (5 species) (stem lesion) and F. oxysporum (root rot) were recovered from the seeds. Thin-layer chromatographic analysis of chloroform extracts of the 13 seed samples revealed that two samples contained very low concentrations of aflatoxins B1 and B2 (4.5-6.5 µg/kg).https://oajournals.fupress.net/index.php/pm/article/view/4836
spellingShingle Abdulqader Elzein Elshafie
Seifeldin Ahmed Faragalla El Nagerabi
Composition of Mycoflora and Aflatoxins in Lupine Seeds from the Sudan
Phytopathologia Mediterranea
title Composition of Mycoflora and Aflatoxins in Lupine Seeds from the Sudan
title_full Composition of Mycoflora and Aflatoxins in Lupine Seeds from the Sudan
title_fullStr Composition of Mycoflora and Aflatoxins in Lupine Seeds from the Sudan
title_full_unstemmed Composition of Mycoflora and Aflatoxins in Lupine Seeds from the Sudan
title_short Composition of Mycoflora and Aflatoxins in Lupine Seeds from the Sudan
title_sort composition of mycoflora and aflatoxins in lupine seeds from the sudan
url https://oajournals.fupress.net/index.php/pm/article/view/4836
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