| Autor: |
Anjorin, Toba S., Usman, Alhassan, Fapohunda, Stephen O., Kwanashie, Adobe, Sulyok, Michael, Krska, Rudolf |
| Předmět: |
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| Zdroj: |
Jordan Journal of Biological Sciences; Dec2021, Vol. 14 Issue 4, p719-726, 8p |
| Abstrakt: |
The study investigated the incidence of mycobiota, Aspergillus spp metabolites and aflatoxin biosynthesis precursors in 60 samples of seeds and haulms of improved groundnut genotypes in Nigeria. Culturing of the infected seeds was done using the agar plate method and mycobiota identification was done using conventional cultural and microscopy method. The occurrence of Aspergillus toxins, and aflatoxin biosynthesis precursors were evaluated using liquid chromatography-mass spectrometry (LC- MS/MS). Three identified species and four unidentified species of fungi were isolated from the seeds with Aspergillus niger (47.19%) and A. flavus (17.82%) having higher incidence more than others. The seed samples from ICGX 86024 and ICGX 01276 had the highest and lowest fungal incidence respectively. No aflatoxin B1, ochratoxin A or fumonisins were detected in the seeds and haulms samples of the improved groundnut despite the incidence of A. flavus. Fifteen fungal metabolites were found including eight Aspergillus metabolites and seven aflatoxin biosynthesis precursors. From our result, STC which is involved in flatoxin biosynthesis pathway was below limit of detection and thus aflatoxin formation in the groundnuts might be interrupted. This report is foremost in elucidating the aflatoxins biosynthesis precursors in seeds and haulms of improved groundnut varieties in Northern Nigeria. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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