茄链格孢（Alternariasolani）可引起番茄和马铃薯等多种茄科蔬菜的早疫病。早在1949年Brian等就曾报道茄链格孢经体外培养可产生茄链格孢毒素——交链孢酸（alternar-icacd），并证实它是一种致病因子。50年代后，Grore和Bartels-keith等实验室对茄交链孢酸进行了分离、纯化及 Alternaria solani (Alternariasolani) can cause early blight of many solanaceous vegetables, such as tomatoes and potatoes. As early as 1949, Brian et al. Reported that Alternaria solani produced alternaria-icacd by in vitro culture and confirmed it as a causative agent. After the 1950s, Grore and Bartels-keith and other laboratories on eggplant spore acid separation, purification and