Building a protective shield: The role of wound healing in reducing postharvest decay and preserving quality of citrus fruit

IF 6.1 2区生物学 Q1 PLANT SCIENCES

Plant Physiology and Biochemistry Pub Date : 2024-11-05 DOI:10.1016/j.plaphy.2024.109272

Xiaoquan Gao , Wenjun Wang , Ou Chen , Jian Huang , Kaifang Zeng

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引用次数: 0

Abstract

Postharvest citrus fruit is susceptible to pathogenic infestation and quality reduction through wounds, leading to tremendous commercial losses. Herein, wound healing of citrus fruit was obviously at 25 °C for five days to form a barrier effective against the development of infectious diseases and water dissipation. Combined with the results of transcriptional and metabolic levels, wound healing activated the expression of CsKCS4, CsKCS11, CsCYP704B1, CsFAH1, CsGPAT3 and CsGPAT9 genes in suberin biosynthesis pathway, and CsPMEI7, CsCesA-D3, CsXTH2, CsXTH6, CsXTH22, CsXTH23, CsXTH24, CsC4H and CsCAD genes in cell wall metabolism pathway, leading to the accumulation of suberin monomers and cell wall components. The results of microscopic observations proved wound healing promoted suberin deposition and cell wall strengthening. Meanwhile, wound healing required the provision of energy and precursor substances by carbohydrate metabolism and amino acid metabolism. We provide new insights into the regulatory mechanism of wound healing on improving disease resistance and maintaining the quality of citrus fruit.

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建立保护罩：伤口愈合在减少柑橘类水果采后腐烂和保持品质方面的作用。

柑橘类水果采后很容易受到病原体侵染，并通过伤口降低品质，从而导致巨大的商业损失。在本文中，柑橘果实的伤口愈合明显是在 25 °C、持续五天的条件下进行的，以形成一道有效的屏障，防止柑橘果实感染病害和水分散失。结合转录和代谢水平的研究结果，伤口愈合激活了果胶生物合成途径中 CsKCS4、CsKCS11、CsCYP704B1、CsFAH1、CsGPAT3 和 CsGPAT9 基因的表达、以及细胞壁代谢途径中的 CsPMEI7、CsCesA-D3、CsXTH2、CsXTH6、CsXTH22、CsXTH23、CsXTH24、CsC4H 和 CsCAD 基因，从而导致了单体小檗素和细胞壁成分的积累。显微镜观察结果证明，伤口愈合促进了单胶的沉积和细胞壁的强化。同时，伤口愈合需要碳水化合物代谢和氨基酸代谢提供能量和前体物质。我们对伤口愈合对提高柑橘抗病性和保持果实品质的调控机制有了新的认识。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Plant Physiology and Biochemistry 生物-植物科学

CiteScore

11.10

自引率

3.10%

发文量

410

审稿时长

33 days

期刊介绍： Plant Physiology and Biochemistry publishes original theoretical, experimental and technical contributions in the various fields of plant physiology (biochemistry, physiology, structure, genetics, plant-microbe interactions, etc.) at diverse levels of integration (molecular, subcellular, cellular, organ, whole plant, environmental). Opinions expressed in the journal are the sole responsibility of the authors and publication does not imply the editors'' agreement. Manuscripts describing molecular-genetic and/or gene expression data that are not integrated with biochemical analysis and/or actual measurements of plant physiological processes are not suitable for PPB. Also "Omics" studies (transcriptomics, proteomics, metabolomics, etc.) reporting descriptive analysis without an element of functional validation assays, will not be considered. Similarly, applied agronomic or phytochemical studies that generate no new, fundamental insights in plant physiological and/or biochemical processes are not suitable for publication in PPB. Plant Physiology and Biochemistry publishes several types of articles: Reviews, Papers and Short Papers. Articles for Reviews are either invited by the editor or proposed by the authors for the editor''s prior agreement. Reviews should not exceed 40 typewritten pages and Short Papers no more than approximately 8 typewritten pages. The fundamental character of Plant Physiology and Biochemistry remains that of a journal for original results.