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软腐细菌有着复杂的种群组成,广泛的地理分布及寄主范围。其致病机制是由病菌分泌果胶酶使寄主的薄壁细胞组织离解,造成寄主组织萎蔫和腐烂。软腐病不仅在田间,而且在寄主收获后的整个运输和贮藏过程中均可发生。据统计,全世界每年因软腐病造成的损失达5千万—1亿美元。英国每年有500万吨马铃薯做为食物,在贮藏期造成的损失达68％;世界各地大白菜贮藏期的
Soft rot bacterium has a complex population composition, a wide range of geographical distribution and host range. Its pathogenesis is caused by the secretion of pectinase bacteria host parenchyma cells dissociation, resulting in host wilting and decay. Soft rot can occur not only in the field, but also throughout the transport and storage of the host harvest. According to statistics, the annual loss due to soft rot in the world amounts to 50 billion to 100 million U.S. dollars. In Britain, 5 million tons of potatoes are used as food each year, causing 68% loss during storage. The storage period of cabbage around the world