巴西橡胶树胶乳的黄色体内同时存在着两类典型的病原相关蛋白 ,几丁酶 /溶菌酶和β—13—葡聚糖酶。割胶这种持续的机械创伤产生的乙烯可在mRNA的转录水平上大量诱导胶乳几丁酶/溶菌酶和β—13—葡聚糖酶的合成。它们不仅是橡胶树防御潜在病原微生物的抗病系统的重要组成部分;;而且还参加了胶乳的凝固过程;;与橡胶树的排胶和产量具有密切的关系。 Two kinds of typical pathogen-related proteins, chitinase / lysozyme and β-13-glucanase exist simultaneously in the yellow body of the gum rubber latex. Ethylene produced by this continuous mechanical traumatic tapping induces a large amount of latex chitinase / lysozyme and beta-13-glucanase synthesis at the mRNA transcriptional level. They are not only an important part of the rubber tree’s defense against potential pathogenic microorganisms but also participate in the process of latex solidification; it is closely related to rubber gum removal and yield.