The molecular mechanism on suppression of climacteric fruit ripening with postharvest wax coating treatment via transcriptome
文献类型： 外文期刊
作者： Si, Yajing 1 ; Lv, Tianxing 2 ; Li, Hongjian 2 ; Liu, Jiaojiao 1 ; Sun, Jiamao 1 ; Mu, Zhaohui 1 ; Qiao, Junling 1 ; Bu, Haidong 3 ; Yuan, Hui 1 ; Wang, Aide 1 ;
作者机构： 1.Shenyang Agr Univ, Coll Hort, Natl & Local Joint Engn Res Ctr Northern Hort Faci, Key Lab Fruit Postharvest Biol Liaoning Prov,Minis, Shenyang, Peoples R China
2.Liaoning Inst Pomol, Xiongyue, Peoples R China
3.Heilongjiang Acad Agr Sci, Mudanjiang Branch, Mudanjiang, Peoples R China
关键词： Malus domestica; Pyrus ussuriensis; fruit wax coating; fruit ripening; RNA-seq
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）
ISSN： 1664-462X
年卷期： 2022 年 13 卷
页码：
收录情况： SCI
摘要： Wax coating is an important means to maintain fruit quality and extend fruit shelf life, especially for climacteric fruits, such as apples (Malus domestica). Here, we found that wax coating could inhibit ethylene production, chlorophyll degradation, and carotenoid synthesis, but the molecular mechanism remains unclear. The regulatory mechanism of wax coating on apple fruit ripening was determined by subjecting wax-treated apple fruits to transcriptome analysis. RNA-seq revealed that 1,137 and 1,398 genes were upregulated and downregulated, respectively. These differentially expressed genes (DEGs) were shown to be related to plant hormones, such as ethylene, auxin, abscisic acid, and gibberellin, as well as genes involved in chlorophyll degradation and carotenoid biosynthesis. Moreover, we found that some genes related to the wax synthesis process also showed differential expression after the wax coating treatment. Among the DEGs obtained from RNA-seq analysis, 15 were validated by quantitative RT-PCR, confirming the results from RNA-seq analysis. RNA-seq and qRT-PCR of pear (Pyrus ussuriensis) showed similar changes after wax treatment. Our data suggest that wax coating treatment inhibits fruit ripening through ethylene synthesis and signal transduction, chlorophyll metabolism, and carotenoid synthesis pathways and that waxing inhibits endogenous wax production. These results provide new insights into the inhibition of fruit ripening by wax coating.
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