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Impact of melatonin application on lignification in water bamboo shoot during storage

文献类型： 外文期刊

作者： Yang, Baiqi 1 ; Han, Yanchao 1 ; Wu, Weijie 1 ; Fang, Xiangjun 1 ; Chen, Hangjun 1 ; Gao, Haiyan 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, China Natl Light Ind,Key Lab Postharvest Preserva, Food Sci Inst,Key Lab Fruits & Vegetables Posthar, Minist Agr & Rural Affairs,Key Lab Postharvest Ha, Hangzhou 310021, Peoples R China

关键词： Water bamboo shoot; Lignin; Transcription factor gene expression

期刊名称：FOOD CHEMISTRY-X （ 影响因子：6.443； 五年影响因子：6.443 ）

ISSN： 2590-1575

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Melatonin, a crucial bioactive molecule, involved in several physiological processes in plants. This study investigated the effects of melatonin (MT) treatment on lignification, including firmness, lignin, lignified-enzyme activities, the expression patterns of genes encoding corresponding enzymes and transcription factors in water bamboo shoot during storage for 8 days. MT treatment decreased the firmness and content of lignin. It inhibited the degradation of total phenols and ascorbic acid and delayed the lignin biosynthesis, via reducing the activities of phenylalanine ammonia-lyse cinnamyl alcohol dehydrogenase and peroxidase, as well as lignin biosynthesis related genes expression levels. Transcription factors of ZlNAC1, ZlNAC2, ZlNAC3 and ZlNAC4 from NAC family and ZlMYB1 and ZlMYB2 from MYB family were increased in water bamboo shoot after harvest and MT-treated markedly reduced their expression. Therefore, our findings supply a fundamental understanding of MT treatment suppression of lignification and establish a foundation for further research on transcriptional regulation.

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