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首页> 外文期刊>Acta Horticulturae >Study on aflatoxin and sclerotium producing ability of Aspergillus flavus isolates.
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Study on aflatoxin and sclerotium producing ability of Aspergillus flavus isolates.

机译:黄曲霉分离物黄曲霉毒素和菌核的生产能力研究。

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摘要

Some isolates of A. flavus produce aflatoxin on pistachio seeds. In this investigation 102 isolates of A. flavus were isolated from pistachio seed and processing residue samples collected from different areas of Kerman province. Aflatoxin producing ability was detected on Czapek dox agar medium with 0.3% a-cyclodextrin. The production of aflatoxin coincided with the presence of a bright blue fluorescent area surrounding colonies when observed under long wavelength (365 nm) UV light after 3 days of incubation at 26 degrees C. Sclerotium producing ability was determined on Czapek dox agar, Czapek dox agar with 3% sodium nitrate and PDA medium. As a result 39.2% isolates produced aflatoxin and 15.7% isolates produced sclerotium. There was no relationship between aflatoxin and sclerotium producing ability and geographic distribution.
机译:黄曲霉的一些分离物在开心果种子上产生黄曲霉毒素。在这项调查中,从开心果种子中分离了102种黄曲霉菌,并从克尔曼省不同地区收集了加工残留样品。在含0.3%α-环糊精的Czapek dox琼脂培养基上检测到黄曲霉毒素的生产能力。在26°C孵育3天后,在长波长(365 nm)紫外线下观察时,黄曲霉毒素的产生与菌落周围亮蓝色荧光区域的出现同时发生。在Czapek dox琼脂,Czapek dox琼脂上测定了菌核的生产能力用3%的硝酸钠和PDA培养基。结果,39.2%的分离物产生了黄曲霉毒素,15.7%的分离物产生了菌核菌。黄曲霉毒素和菌核的生产能力与地理分布之间没有关系。

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