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Transcriptomics analysis reveals molecular mechanism of softening and cell wall polysaccharides-disassembling in peaches treated by flow microcirculation of sodium nitroprusside medium

文献类型： 外文期刊

作者： Zheng, Yanli 1 ; Duan, Lihua 1 ; Ran, Yalin 1 ; Zhang, Peng 2 ; Jiang, Yunbin 4 ; Zhao, Zhiyong 5 ; Li, Ziqin 5 ; Chen, Lan 1 ; Tang, Yao 1 ; Li, Xihong 1 ; Jia, Xiaoyu 2 ;

作者机构： 1.Tianjin Univ Sci & Technol, Coll Food Sci & Engn, State Key Lab Food Nutr & Safety, Tianjin 300457, Peoples R China

2.Tianjin Acad Agr Sci, Inst Agr Prod Preservat & Proc Sci & Technol, Tianjin 300384, Peoples R China

3.Natl Engn Technol Res Ctr Preservat Agr Prod, Tianjin 300384, Peoples R China

4.Shanxi Fruit Ind Cold Chain New Mat Co Ltd, Tongchuan 727199, Peoples R China

5.Xinjiang Acad Agr & Reclamat Sci, Inst Agroprod Proc Sci & Technol, Shihezi 832000, Peoples R China

关键词： Peach fruit; Sodium nitroprusside atomization; Cell wall polysaccharides; RNA-sequencing; Softening

期刊名称：POSTHARVEST BIOLOGY AND TECHNOLOGY （ 影响因子：7.0； 五年影响因子：6.9 ）

ISSN： 0925-5214

年卷期： 2023 年 196 卷

页码：

收录情况： SCI

摘要： Peach (Prunus persica L. Batsch. var. compressa Bean) is prone to softening during storage, and this leads to marked deterioration in quality and shortened shelf life. The influences of sodium nitroprusside (SNP) atomi-zation on softening development, cell wall ultrastructure, cell wall polysaccharides metabolism in peach fruit stored at 0 +/- 0.5 degrees C for 60 d were explicated. SNP atomization treated fruit, when contrasted to the control, exhibited higher firmness, contents of chelate-soluble pectin (CSP), sodium carbonate-soluble pectin (SSP), cell wall materials (CWM), cellulose and hemicellulose (HC), but lower water-soluble pectin (WSP) content. SNP treatment suppressed activities of cell wall-degrading relevant enzymes, the disassembly of cell wall structure, and the decomposition of middle lamella and plasma membrane in peach fruit. The RNA sequencing results suggested that the differentially expressed genes from amino sugar metabolic process (beta-D-xylosidase, BXL), galactose metabolism (beta-galactosidase, beta-Gal), pentose and glucuronate interconversions (polygalacturonase, PG), cellular carbohydrate metabolic process (xyloglucan-endotransglucosylase/hydrolase, XTH), and expansin (Exp) were associated with cell wall degradation in peaches with aerosolized water (control) or SNP treatments. Based on these results, the delayed softening of peaches with SNP atomization was ascribed to cell wall poly-saccharides degradation regulated by gene expression levels and enzymes.

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