Korean Journal of Mycology (Kor. J. Mycol.)
Jung-Hye Choi, Ju-Young Nah, Mi-Jeong Lee, Su-Bin Lim, Theresa Lee, and Jeomsoon Kim *
Division of Microbial Safety, National Institute of Agricultural Sciences, Rural Development
Administration, Wanju 55365, Korea
Correspondence to kimjs33@korea.kr
Korean Journal of Mycology (Kor J Mycol) September, 2021, 49(3):303-313.
https://doi.org/10.4489/KJM.20210027
Accepted: September 17, 2021; Revised: September 01, 2021; Received: July 13, 2021
Published: September, 2021.
© 2021 THE KOREAN SOCIETY OF MYCOLOGY.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Peanuts in storage were estimated for mycotoxigenic fungi and mycotoxins. Peanut samples collected from storages in Gochang were mainly contaminated with Fusarium (17.2±28.0%), Penicillium (12.4±28.0%), and Aspergillus (8.0±7.6%). Other genera, including Talaromyces, Rhizopus, Rhizoctonia, Trichocladium, Clonostachys, Mucor, Chaetomium, Trametes, Epicoccum, and Humicola, were also found. Although aflatoxins were not detected in the peanut samples, 29 strains of Aspergillus flavus were identified using molecular marker genes. Among them, 17 selected isolates produced aflatoxins in solid culture media ranging from 0.61–187.82 μg/kg. All of them could produce both aflatoxin B1 and B2 and some (n=5) produced additional G1, G2, or both. This study is the first report that A. flavus stains obtained from Korean stored peanut are aflatoxigenic.
Aflatoxin, Aspergillus flavus, Genetic diversity, Mycotoxin production, Peanut