Preliminary Analysis, Combined with Omics of Chilling Injury Mechanism of Peach Fruits with Different Cold Sensitivities during Postharvest Cold Storage

IF 3.1 3区 农林科学 Q1 HORTICULTURE
Wenduo Zhan, Yan Wang, Wenyi Duan, Ang Li, Yule Miao, Hongmei Wang, Junren Meng, Hui Liu, Liang Niu, Lei Pan, Shihang Sun, Guochao Cui, Zhiqiang Wang, Wenfang Zeng
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引用次数: 0

Abstract

The storage of peach fruits at 4–5 °C can easily lead to chilling injury and greatly reduce the quality and commercial value of peach fruits. In this study, two kinds of peach fruits (CX and CM) were selected to analyze the mechanisms of chilling injury in fruits with different chilling sensitivity by means of their lipidomic, transcriptome, and dynamic changes in plant hormones. We found that the ethylene, abscisic acid (ABA), and lipid contents changed differently between CX and CM. The ABA and dilactosyl diacylglycerol (DGDG) contents significantly increased after refrigeration in CM fruit, leading to strong cold resistance. However, low temperatures induced a greater accumulation of ethylene, phospholipids, and ABA-GE in CX fruit than in CM fruit, eventually leading to more severe CI symptoms in CX fruit. Additionally, a transcriptional regulatory network for CM and CX fruits during cold storage was constructed, providing a new theoretical reference for the cultivation of cold-resistant peach cultivars and the development of postharvest preservation technology.
采后冷藏期间不同冷敏性桃果冷冻损伤机理的初步分析与表观技术相结合
桃果在 4-5 ℃条件下贮藏容易导致冷害,大大降低桃果的品质和商业价值。本研究选取了两种桃果(CX和CM),通过其脂质组学、转录组学和植物激素的动态变化,分析不同冷害敏感性果实的冷害机理。我们发现,CX 和 CM 的乙烯、脱落酸(ABA)和脂质含量发生了不同的变化。CM果实在冷藏后,ABA和二乳糖基二酰甘油(DGDG)含量显著增加,具有很强的抗寒性。然而,与 CM 果实相比,低温诱导 CX 果实中乙烯、磷脂和 ABA-GE 的积累更多,最终导致 CX 果实出现更严重的 CI 症状。此外,还构建了冷藏期间 CM 和 CX 果实的转录调控网络,为抗寒桃品种的培育和采后保鲜技术的发展提供了新的理论参考。
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来源期刊
Horticulturae
Horticulturae HORTICULTURE-
CiteScore
3.50
自引率
19.40%
发文量
998
期刊介绍: Horticulturae (ISSN 2311-7524) is an international, multidisciplinary, peer-reviewed, open access journal focusing on all areas and aspects of temperate to tropical horticulture. It publishes original empirical and theoretical research articles, short communications, reviews, and opinion articles. We intend to encourage scientists to publish and communicate their results concerning all branches of horticulture in a timely manner and in an open venue, after being evaluated by the journal editors and randomly selected independent expert reviewers, so that all articles will never be judged in relation to how much they confirm or criticize the opinions of other researchers.
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