期刊
FOOD CHEMISTRY
卷 230, 期 -, 页码 145-153出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.03.033
关键词
L-Glutamate; Postharvest; Induced resistance; Tomato fruit
资金
- National Natural Science Foundation of China [31471627]
- National Key Research and Development Program of China [2016YFD0401201]
Although numerous studies have reported the involvement of glutamate in plant abiotic stress, relatively little is known about the role of glutamate in plant defence against pathogens. To gain further knowledge, we investigated the effect of glutamate on Alternaria alternata in tomato fruit. A multidisciplinary approach was pursued, combining exogenous glutamate applications, enzymatic activity measurements and real-time quantitative PCR analysis. The results showed glutamate significantly reduced the disease incidence in tomato caused by A. alternata, by inducing resistance (Duncan's test, p < 0.05). A large variety of defence-related enzymes and genes involved in the glutamine synthetaseiglutamate synthase cycle, energy-generated metabolism, such as the gamma-aminobutyric acid shunt, glycolysis and the tricarboxylic acid cycle, and the salicylic acid signalling pathway were activated by glutamate. The activation of these pathways as mentioned above might play a potential role in the resistance mechanisms underpinning glutamate-induced plant immunity. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据