Melatonin delays yellowing of broccoli during storage by regulating chlorophyll catabolism and maintaining chloroplast ultrastructure
文献类型： 外文期刊
作者： Wu, Chenghao 1 ; Cao, Shifeng 2 ; Xie, Keqin 1 ; Chi, Zongyu 1 ; Wang, Jing 1 ; Wang, Hongfei 1 ; Wei, Yingying 1 ; Shao, 1 ;
作者机构： 1.Ningbo Univ, Coll Food & Pharmaceut Sci, Ningbo 315211, Zhejiang, Peoples R China
2.Zhejiang Wanli Univ, Coll Biol & Environm Sci, Key Lab Fruits & Vegetables Postharvest & Proc Te, Ningbo 315100, Peoples R China
3.Ningbo Univ, Key Lab Appl Marine Biotechnol, Minist Educ, Ningbo 315211, Zhejiang, Peoples R China
4.Zhejiang Acad Agr Sci, Inst Food Sci, Key Lab Fruits & Vegetables Postharvest & Proc Te, 298 Middle Desheng Rd, Hangzhou 310021, Peoples R China
关键词： Broccoli; Melatonin; Yellowing; Chloroplast ultrastructure; Chlorophyll catabolic genes
期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：5.537； 五年影响因子：5.821 ）
ISSN： 0925-5214
年卷期： 2021 年 172 卷
页码：
收录情况： SCI
摘要： The effect of melatonin treatment on color, chlorophyll degradation and chloroplast structure in broccoli during storage was evaluated. One hundred mu mmol L-1 melatonin markedly extended the shelf life of broccoli. Compared with control florets, melatonin treatment delayed the decline of chlorophyll content, and maintained more intact chloroplasts. Meanwhile, melatonin also suppressed the activities of chlorophyll catabolic enzymes such as chlorophyllase (CLH), pheophytinase (PPH), pheophorbide a oxygenase (PAO) and red chlorophyll catabolite reductase (RCCR), and down-regulated the expressions of BoNYC1, BoNOL, BoCLH, BoPPH, BoPAO, BoRCCR and BoSGR1 involved in chlorophyll catabolism. Taken together, our results indicated that melatonin could be a good candidate for delaying yellowing in broccoli during storage at 20 degrees C.
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