黄曲霉对花生和玉米的侵染研究

黄曲霉(Aspergillus flavus)极易侵染花生、玉米等多种农作物,并且在侵染后产生具有致癌、致畸、致突变作用的有毒代谢产物——黄曲霉毒素.黄曲霉的侵染和黄曲霉毒素污染不仅发生在作物生长环节,而且在收获、干燥、储运等过程也会发生,严重威胁农产品消费安全和人畜生命健康.因此,解析黄曲霉对粮油作物的侵染过程及侵染...

Study on Aspergillus flavus infection in maize and peanut

Aspergillus flavus is an opportunistic pathogen of ascomycetes, which can causes diseases on several important agricultural crops, especially peanut and maize. This fungus has the potential to produce a toxic metabolite known as aflatoxin, with carcinogenic, teratogenic and mutagenic effects to humans. A. flavus infection and aflatoxin contamination occur not only during the growing season, but also in the process of harvesting, drying, storage and transportation, which has a great impact on the safety of agricultural products and human health. Therefore, it is of great significance to analyze the infection process and molecular mechanism of A. flavus on grain and oil crops, which is benefit for resistant varieties breeding, the early warning and source control of aflatoxin contamination. This review summarized the infective process and molecular mechanism of A. flavus in peanut and maize, focusing on infection cycle, colonization site, infection process, influencing factors and infection mechanism of A. flavus. The purpose is to provide theoretical support for the prevention and control of aflatoxin contamination in agricultural products.