灰葡萄孢菌
发芽
孢子
孢子萌发
化学
过氧化氢酶
生物
分生孢子
微生物学
园艺
过氧化物酶
菌丝体
植物
作者
Wei Zhao,Michael Wisniewski,Wenjie Wang,Jia Liu,Yongsheng Liu
标识
DOI:10.1007/s11274-013-1513-z
摘要
The inhibitory effect of heat treatment (HT) on Botrytis cinerea, a major postharvest fungal pathogen, and the possible mode of action were investigated. Spore germination and germ tube elongation of B. cinerea were both increasingly and significantly inhibited by HT (43 °C) for 10, 20 or 30 min. HT-induced gene expression of NADPH oxidase A, resulted in the intracellular accumulation of reactive oxygen species. HT-treated B. cinerea spores exhibited higher levels of oxidative damage to proteins and lipids, compared to the non-HT control. These findings indicate that HT resulted in oxidative damage which then played an important role in the inhibitory effect on B. cinerea. In the current study, HT was effective in controlling gray mold, caused by B. cinerea, in pear fruits. Understanding the mode of action by which HT inhibits fungal pathogens will help in the application of HT for management of postharvest fungal diseases of fruits and vegetables.
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