植物病原真菌的异核作用,是引起病原物变异的基础之一。近来关于异核作用引起禾谷类作物锈菌新小种产生的资料很多,但在小麦条锈菌方面,在世界范围内似乎还没有报导过。小麦条锈病是我国小麦生产上的重大威胁,小麦条锈菌没有转主寄主,在自然界中仅以无性的夏孢子世代完成生活 Heterologous nuclear role of plant pathogenic fungi, is one of the causes of pathogen variation. There have been many recent reports on heterotrophic effects of new species of rust caused by cereal crops. However, there appears to be no worldwide report of the occurrence of wheat stripe rust. Wheat stripe rust is a major threat to the wheat production in our country. Wheat stripe rust is not translocated to the host, and only the asexual spore generation is completed in nature