| Autor: |
Li Wang, Zhikang Liu, Jin Liang, Yanyan Wang, Chen Zhang, Kaili Shi, Dan Chen, Qingyuan Song, Xingyue Wang, Xinran Hu, Xiuheng Xue, Peng Jin, Yonghua Zheng |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Food Chemistry: X, Vol 23, Iss , Pp 101772- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2590-1575 |
| DOI: |
10.1016/j.fochx.2024.101772 |
| Popis: |
Theanine (N-ethyl-γ-glutamine), as a unique non-protein amino acid, plays vital roles in abiotic stress resistance, while its roles in biotic stress resistance are still unclear. Gray mold caused by Botrytis cinerea is a major disease in strawberries. Effects of theanine on the development of gray mold, cell-wall and phenylpropanoid metabolisms in strawberries were investigated in this study. Results showed that 5 mmol L−1 theanine treatment reduced disease incidence and severity of gray mold in strawberries with antifungal activity in vitro. Meanwhile, theanine treatment enhanced the accumulation of phenolic compounds and lignin, especially ellagic acid, cyanidin, and quercetin, which was associated with increased phenylpropanoid pathway related enzyme activities. Moreover, theanine induced callose deposition and suppressed cell- wall disassembling enzymes, accompanied by higher levels of water insoluble pectin, hemicellulose and cellulose. Therefore, theanine treatment could alleviate decay of B. cinerea-inoculated strawberries by regulating phenylpropanoid and cell-wall metabolisms, maintaining higher levels of phenolic compounds and cell-wall components, thereby contributing to disease resistance and cell-wall structure integrity. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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