摘要
采用稀释倒平板法对广东10个花生主产地土壤中黄曲霉的数量以及分离菌株的产毒能力进行了分析。结果表明:全省各地花生种植土壤中黄曲霉的数量存在较大的差异,其中清远市土壤中的黄曲霉数量最多,达160 cfu/g干土壤,惠州和广州地区次之,均为100 cfu/g干土壤,汕头地区最少,在该地区抽取的土壤样品中未分离出黄曲霉菌株。在分离出来的黄曲霉菌株中,广州地区有10株产毒菌株、清远地区17株、惠州地区16株、云浮地区8株、河源地区8株。
Dilution pour plate method was used to survey the colonization of Aspergillus flavus in soil of 10 peanut cultivation regions of Guangdong and then analyzed the aflatoxin producing capacity of aflatoxigenic strains.The results showed that： Qingyuan peanut cultivation region has the highest level of Aspergillus flavus group colonization,up to 160 cfu/g soil,Huizhou and Guangzhou are 100 cfu/g soil respectively.We screened few strains of Aspergillus flavus in Shantou area in the the lab experiment;Among the Aspergillus flavus strains we isolated in Guangzhou,Qingyuan,Huizhou,Yunfu and Heyuan area were 10,17,16,8,8 aflatoxigenic strains respectively.
出处
《花生学报》
2010年第4期23-26,共4页
Journal of Peanut Science
基金
国家"863"项目(2006AA10Z156)
现代农业产业技术体系建设专项资金资助
关键词
花生
土壤
黄曲霉菌
黄曲霉毒素
分布
peanut
soil
Aspergillus flvaus
aflatoxins
distribution
