Abstract：
:Gray mold caused by Botrytis cinerea is the most important disease in postharvest tomato fruit. Inducing resistance to fungal pathogens in the harvested fruit and vegetable is a promising approach to control postharvest losses. In the present study, the effect of l-glutamate on induction of resistance to B. cinerea and the underlying mechanisms were investigated. The results indicated that l-glutamate at 100 ppm was effective in reducing the gray mold of tomatoes after inoculation of the pathogen. Gene expressions of nine glutamate receptors, four pathogenesis-related proteins and the content of amino acids were affected by l-glutamate treatment. Furthermore, the metabolites of l-glutamate, including GABA, Met, Lys and Arg, could also induce significant resistance against B. cinerea in tomato fruit. Our findings suggested that l-glutamate treatment may represent a promising method for managing postharvest decay of tomato fruit.
journal_name
Food Chemjournal_title
Food chemistryauthors
Sun C,Jin L,Cai Y,Huang Y,Zheng X,Yu Tdoi
10.1016/j.foodchem.2019.04.113subject
Has Abstractpub_date
2019-09-30 00:00:00pages
263-270eissn
0308-8146issn
1873-7072pii
S0308-8146(19)30775-7journal_volume
293pub_type
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