[1]罗登灿,董晓庆,彭俊森,等.草酸处理对采后猕猴桃抗软腐病及生理代谢的影响[J].北方园艺,2023,(09):74-82.[doi:10.11937/bfyy.20223124]
　LUO Dengcan,DONG Xiaoqing,PENG Junsen,et al.Effects of Oxalic Acid Treatment on Resistance to Soft Rot and Physiological Metabolism of Postharvest Kiwifruit[J].Northern Horticulture,2023,(09):74-82.[doi:10.11937/bfyy.20223124]

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草酸处理对采后猕猴桃抗软腐病及生理代谢的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 期数: 2023年09 页码: 74-82 栏目: 出版日期: 2023-05-15

Title:: Effects of Oxalic Acid Treatment on Resistance to Soft Rot and Physiological Metabolism of Postharvest Kiwifruit

作者:: 罗登灿1; 董晓庆1; 2; 彭俊森1; 田欢1; 班成均1; 黄世安1; （1.贵州大学农学院，贵州贵阳 550000；2.贵州省果树工程技术研究中心，贵州贵阳 550000）

Author(s):: LUO Dengcan1; DONG Xiaoqing1; 2; PENG Junsen1; TIAN Huan1; BAN Chengjun1; HUANG Shian1; (1.College of Agriculture,Guizhou University,Guiyang,Guizhou 550000；2.Guizhou Fruit Engineering Technology Research Center,Guiyang,Guizhou 550000)

关键词:: 草酸; 猕猴桃; 贮藏期; 软腐病; 诱导抗性

Keywords:: oxalic acid; kiwifruit; storage period; soft rot; induced resistance

DOI:: 10.11937/bfyy.20223124

文献标志码:: A

摘要:: 以猕猴桃为试材，采用草酸（OA）浸泡的方法处理果实，研究采后OA处理对猕猴桃软腐病抗病性及生理品质的影响，以期为猕猴桃采后抗病性以及果实保鲜研究提供参考依据。结果表明：10 mmol?L-1 OA 离体条件下对病原菌具有最佳抑菌率（92.59%）。10 mmol?L-1 OA处理能够有效延缓损伤接种猕猴桃果实失重率上升和硬度的下降，抑制可滴定酸（TA）含量下降并维持可溶性固形物（TSS）含量在较高水平；OA处理还降低了损伤接种猕猴桃果实中丙二醛（MDA）和游离脯氨酸（Pro）的积累，促进类黄酮和总酚物质含量提高，抑制过氧化氢酶（CAT）和过氧化物酶（POD）活性，但对超氧化物歧化酶（SOD）活性影响不明显；OA处理还提高了几丁质酶（CHI）和葡聚糖酶（GLU）活性，并延缓了苯丙氨酸解氨酶（PAL）活性的下降。综上，10 mmol?L-1 OA处理可以提高果实抗病性，延缓猕猴桃贮藏期的后熟软化，保持良好的果实品质。

Abstract:: Taking kiwifruit as the test materials,the effect of postharvest OA treatment on the resistance to soft rot and physiological quality of post-harvest kiwifruit was studied by the method of postharvest soaked,in order to provide reference for the research on fruit preservation and postharvest disease resistance of kiwifruit.The results showed that 10 mmol?L-1 OA had the best inhibitory rate (92.59%) against pathogenic bacteria.OA treatment with 10 mmol?L-1 could effectively delay the increase of weight loss rate and the decrease of hardness,and inhibite the decrease of TA content and maintain the TSS content at a high level.The treatment also reduced the accumulation of MDA and Pro content,promote the contents of flavonoids and total phenols,inhibite the activities of CAT and POD,but had no obvious effect on the activity of SOD.OA treatment also increased CHI and GLU activities and delayed the decline of PAL activity.In conclusion,OA treatment with 10 mmol?L-1 could improve the disease resistance of fruit,delay the post-ripening softening of kiwifruit during storage period,and maintain good fruit quality.

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备注/Memo

第一作者简介：罗登灿(1998-)，男，硕士研究生，研究方向为果蔬采后生理与贮藏保鲜。E-mail：2188978439@qq.com.责任作者：董晓庆(1980-)，女，博士，副教授，硕士生导师，现主要从事果蔬采后生理与分子生物学等研究工作。E-mail：xiaoqingdong09@163.com.基金项目：贵州省自然科学基金资助项目(黔科合基础20201Y122)；贵州省农业农村厅资助项目（黔农发2016153）。收稿日期：2022-07-28

更新日期/Last Update: 2023-06-07