黄曲霉素是已知真菌毒素中毒性最大的一类,其致癌作用,已在多种实验动物中得到证明,它在自然界主要由黄曲霉(Aspergillus flavus)和寄生曲霉(A.parasi-ticus)产生。前报已述蟑螂体表和消化道均可带染多种霉菌,其中不乏产毒黄曲霉菌,甚至有产毒毒能力高达几十万ppb的强毒株。为了对蟑螂传播霉菌,危害人类健康的机制进行探讨,我们用人工方法将产毒黄曲霉菌孢子悬液注射到蟑螂消化道, Aflatoxins, the most toxic species known to be mycotoxins, have been shown to be carcinogenic in a variety of laboratory animals and are found in nature primarily by Aspergillus flavus and A. parasiticus )produce. Before the reported reported cockroach body surface and digestive tract can be infected with a variety of molds, many of them produce Aspergillus flavus, and even produce toxic strains up to hundreds of thousands of ppb of virulent strains. In order to explore the mechanism of cockroach spread mold, endangering human health, we use artificial methods to injection of Aspergillus flavus spores suspension into the digestive tract of cockroaches,