苯并噻二唑结合罗伦隐球酵母对桃果采后青霉病的控制

Control of postharvest blue mold decay of peaches by 2, 1, 3-Benzothiadiazole in combination of Cryptococcus laurentii

摘要: 研究了拮抗酵母菌罗伦隐球酵母与植物诱导剂苯并噻二唑(BTH)结合使用控制桃果青霉病的效果。结果显示,罗伦隐球酵母与100μg/mL的BTH结合使用时,不仅其生防效力显著提高,还可以显著提高桃果的抗性相关酶活性,包括过氧化物酶(POD)和过氧化氢酶(CAT),并且抑制了丙二醛(MDA)含量的增加。因此,BTH与罗伦隐球酵母结合使用,集成了生物防治酵母和植物生长调节剂的生物双重活性,可能成为防治桃果采后病害的一个新途径。

Abstract: The performance of an antagonistic yeast Cryptococcus laurentii in combination with 2, 1, 3-Benzothiadiazole ( BTH) in controlling blue mold decay of peaches was evaluated. The results showed that the combined treatment reduced blue mold decay of peaches more obvious than with BTH or C.laurentii alone. Moreover, the host defence enzymes activity of peaches, including peroxidase (POD) , catalase (CAT) were enhanced by combined treatment of C.laurentii and BTH significantly and MDA of peaches was inhibited. Therefore, the combination of C.laurentii with BTH, which integrated the dual biological activity from the biocontrol yeast and plant regulator, might be developed to be a useful approach to reduce the disease incidence of peaches.