Geographical distribution of Aspergillus flavus in peanut harvest period in China  

作　　者：Xiaohan Liu Jiayun Fu Mingbo Wen Haohua Gu Pingping Ji Xiaofeng Yue Xiaoqian Tang Meijuan Liang Yang Zhou Qi Zhang Peiwu Li 

机构地区：[1]Oil Crops Research Institute of the Chinese Academy of Agricultural Science,Wuhan,China [2]Key Laboratory of Biology and Genetic Improvement of Oil Crops,Ministry of Agriculture and Rural Affairs,Wuhan,China [3]Key Laboratory of Detection for Mycotoxins,Ministry of Agriculture and Rural Affairs,Wuhan,China [4]Laboratory of Risk Assessment for Oilseeds Products(Wuhan),Ministry of Agriculture and Rural Affairs,Wuhan,China [5]Quality Inspection and Test Center for Oilseeds Products,Ministry of Agriculture and Rural Affairs,Wuhan,China

出　　处：《Oil Crop Science》2023年第2期127-132,共6页中国油料作物学报(英文版）

基　　金：the National Key R&D Program of China(2022YFF1100702);Major project of Hubei Hongshan Laboratory(2021hszd015),National Natural Sciences Foundation of China(32030085,U22A20551);Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences(CAASASTIP-2021-OCRI);Knowledge Innovation Program of Wuhan-Shuguang Project(3570).

摘　　要：In order to grasp the distribution of Aspergillus flavus in the soil of peanut production areas in China,A.flavus biomarkers were tested on 555 soil samples from 37 sampling points in 17 provinces,peanut fields in four agroecological zones(Southern area,Yangtze River Basin,Northern area,Northeast area).The results showed that(1)the cultivation amount of A.flavus per gram of soil in the Yangtze River Basin is 1.30 times that of the southern area,1.56 times that of the northern area,and 6.20 times that of the northeast area,with obvious regional characteristics.(2)In the Yangtze River basin,the change of longitude in the east-west direction has no direct impact on the cultivation amount of A.flavus per gram of soil.(3)In the east coast,the A.flavus cultivated per gram of soil increased first and then decreased with the increase of latitude from south to north.(4)A.flavus can be isolated in the soil samples above 1000 m.Field pollution is an important source of aflatoxin contamination in peanut.The study on the distribution of A.flavus in soil in China could provide theoretical support for the early warning and prevention and control measures of aflatoxin contamination in peanut.

关 键 词：Agroecological zones PEANUT Aspergillus flavus DISTRIBUTION Aflatoxin contamination 

分 类 号：S435.652[农业科学—农业昆虫与害虫防治]