摘要
本文对分离自小麦、马铃薯、番茄和茄子上链格孢霉属(Alternaria)2个种(链格孢和茄链格孢)的96个菌株,用枯草杆菌生长抑制试验筛选链格孢霉醇(AOH)和链格孢霉醇单甲醚(AME)的产生菌株,有48株产生毒性作用(占所测菌株的50％)。18株产强、中毒性菌用高效液相色谱分析,有13株产AOH和AME(占所测菌株的72.2％)。链格孢的产毒素菌株率比茄链格孢低。但产毒素含量却是前者明显高于后者。其中产AOH和AME的最高含量,链格孢菌株XA-8分别为280和5140mg/kg,而茄链格孢菌株SA-10分别为95.9和94.3mg/kg。
Ninety-six Alternaria strains isolated from deseased rinds of wheat, potato, tomato and eggplant were screened for toxigenicity with alternariol (AOH) and alternariol melthyl ether ( AME) by the growth inhibition of Bacillum mycoides. Fourty - eight strains have toxic effects to B. mycoides (account for
50% ).
Eighteen strains with highly to moderately toxic effects have been analysed by high performance liquid chromatographic (HPLC), among which thirteen strains produce AOH and AME (account for 72.2%).
Results show that the number of toxic strains of A. alternata is lower than that of A. solani. However, the toxin production of A. alternata is much higher than that of A. solani. The highest content of AOH and AME is 280 and 5140 mg/kg produced by A. alternata strain XA-8 and 95.9 and 94.3 mg/kg by A. solani strain SA-10.
出处
《真菌学报》
CSCD
北大核心
1996年第2期109-113,共5页
基金
国家"八.五"科技攻关资助项目
关键词
链格孢霉醇
单甲醚
链格孢
真菌毒素
真菌
筛选
Alternariol (AOH), Alternariol melthyl ether (AME), Alter-anna alternata, Alternaria solani, Mycotoxins, Screening
