新疆农业科学 ›› 2022, Vol. 59 ›› Issue (1): 190-198.DOI: 10.6048/j.issn.1001-4330.2022.01.022

• 园艺特产·植物保护·生理生化 • 上一篇    下一篇

茉莉酸甲酯对红地球葡萄采后贮藏品质和病害的影响

郑素慧1(), 何庆2, 张健1, 关军锋3, 秦南南2, 杨怡靖铭2, 刘雪艳2, 吴斌1()   

  1. 1.新疆农业科学院农产品贮藏加工研究所,乌鲁木齐 830091
    2.新疆农业大学食品科学与药学学院,乌鲁木齐 830052
    3.河北省农林科学院遗传生理研究所,石家庄 050051
  • 收稿日期:2020-08-19 出版日期:2022-01-20 发布日期:2022-02-18
  • 通信作者: 吴斌
  • 作者简介:郑素慧(1982-),女,新疆人,副研究员,硕士,研究方向为果蔬采后贮运保鲜,(E-mail) 94468969@qq.com
  • 基金资助:
    国家重点研发计划(2018YFD0401302);国家自然科学基金(31860460);新疆农业科学院青年基金(xjnkq-2016020)

Effects of Exogenous Methyl Jasmonate on Quality and Disease of Grapefruit

ZHENG Suhui1(), HE Qing2, ZHANG Jian1, GUAN Junfeng3, QIN Nannan2, YANG Yijingming2, LIU Xueyan2, WU Bin1()   

  1. 1. Institute of Agricultural Storage and Processing, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
    2. College of Food Science and Pharmacy, Xinjiang Agricultural University, Urumqi 830052, China
    3. Institute of Genetics and Physiology,Hebei Academy of Agricultwre and Forestry Sciences,Shijiazhuang 050051,China
  • Received:2020-08-19 Online:2022-01-20 Published:2022-02-18
  • Correspondence author: WU Bin
  • Supported by:
    National Key R & D Program Project(2018YFD0401302);National Natural Science Foundation of China(31860460);Youth Fund Project of Xinjiang Academy of Agricultural Sciences(xjnkq-2016020)

摘要:

【目的】研究茉莉酸甲酯(MeJA)浸泡处理对葡萄采后病害的控制及贮藏品质的影响。【方法】以新疆红地球葡萄为试材,采用50、100和200 μmol/L茉莉酸甲酯(methyl jasmonate,MeJA)室温(25℃)浸泡处理葡萄,(0±1)℃贮藏,每隔10 d测定果实硬度、可溶性固形物含量、可滴定酸含量及腐烂率的变化;果实采后损伤接种Botrytis cinerea,统计病斑直径和发病率的变化,测定不同处理苯丙氨酸解氨酶(PAL)、几丁质酶(CHI)、β-1,3葡聚糖酶(GLU)和多酚氧化酶(PPO)活性变化。【结果】MeJA处理可延缓果实硬度的下降,维持葡萄果实中可溶性固形物和可滴定酸含量,能抑制果实的腐烂;MeJA处理能有效抑制Botrytis cinerea侵染造成灰霉病发病率上升和病斑直径的扩大,与单一接种病原菌和MeJA处理相比,先用MeJA处理后接种Botrytis cinerea葡萄果实展现出更强的抗病反应,PAL、CHI、GLU和PPO活性显著提高(P<0.05)。【结论】葡萄采后MeJA处理对于保持红地球葡萄贮期果实品质和灰霉病病害控制效果显著。

关键词: 茉莉酸甲酯; 红地球葡萄; 贮藏品质; 灰霉病

Abstract:

【Objective】 To explore the effects of exogenous methyl jasmonate (MeJA) soaking on postharvest disease control and postharvest storage quality of grape in the hope of finding safe and efficient grape preservation preparation and technique to replace traditional methods. 【Methods】 The grapes (Vitis vinifera L. cv. Red Globe) were immersed with 50, 100 and 200 μmol/L methyl jasmonate (MeJA) for 10 min at room temperature (25℃), then stored at (0±1)℃. Fruit firmness, soluble solid content, titratable acid content and decay rate were tested every ten days respectively. Grapes were inoculated with Botrytis cinerea by epidermis damaged method, the diameter changes and incidence of spots were counted after being inoculated with Botrytis cinerea in grapes,meanwhile, the activity changes of phenylalanine ammonia lyase (PAL), Chitinase(CHI), β-1,3-glucanase (GLU) and Polyphenol oxidase (PPO) in different treatments were determined. 【Result】 The results showed that MeJA treatment could delay the decrease of fruit firmness and inhibit the decay during the storage. Botrytis cinerea grape pre-treated with MeJA showed stronger and faster response to the challenge of pathogen inoculation compared with either treatments alone, and exhibited a significant increase in the activities of defense-related enzymes including PAL, CHI, GLU and PPO as well as total phenols content(P<0.05). 【Conclusion】 The study further clarified the significant effect of exogenous MeJA on maintaining grape quality and reducing gray mold in the post-harvest storage period of grape, and also provided theoretical support and laid the foundation for the further application of MeJA in fruit preservation.

Key words: methyl jasmonate; Vitis vinifera L. cv. Red Globe; storage quality; Botrytis cinerea

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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