引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 0次   下载 0 本文二维码信息
码上扫一扫!
分享到: 微信 更多
蓝莓表皮蜡质组分对果实采后抗病性的影响
张丽萍;刘瑞玲;韩延超;陈杭君;吴伟杰;房祥军;郜海燕
作者单位
张丽萍;刘瑞玲;韩延超;陈杭君;吴伟杰;房祥军;郜海燕 浙江省农业科学院食品科学研究所农业农村部果品产后处理重点实验室中国轻工业果蔬保鲜与加工重点实验室浙江省果蔬保鲜与加工技术研究重点实验室 
摘要:
目的:探讨蓝莓外表皮蜡质中的主要组分(齐墩果酸与熊果酸)在果实采后抵御病原菌侵染过程中的作用。方法:采用齐墩果酸与熊果酸分别处理去蜡与蜡质完整蓝莓果实,并以灰霉菌孢子悬浮液接种果实,测定蓝莓病害程度、活性物质含量及抗病相关酶活的变化。结果:齐墩果酸与熊果酸处理均显著降低去蜡/蜡质完整蓝莓果实的腐烂率与失重率,维持果实TSS、硬度、VC含量、总酚含量与花色苷含量,抑制TA升高和MDA生成。此外,齐墩果酸与熊果酸处理能够提高过氧化物酶(POD)、多酚氧化酶(PPO)、β-1,3-葡聚糖酶(GLU)、几丁质酶(CHT)、苯丙氨酸解氨酶(PAL)活性。结论:蓝莓外表皮蜡质中的熊果酸、齐墩果酸可以增强果实的抗病性,从而保持果实品质。
关键词:  蓝莓  抗病性  表皮蜡质  齐墩果酸  熊果酸
DOI:
分类号:
基金项目:国家自然科学基金面上项目(31772042)
Effects of Cuticular Wax on Disease Resistance of Postharvest Blueberry
Abstract:
Objective: To investigate the effects of oleanolic acid and ursolic acid, the main components of blueberry cuticular wax, on the resistance of postharvest bluberry to pathogen. Methods: Oleanolic acid and ursolic acid were used to treat dewaxed and waxy intact blueberry respectively, which had inoculated with spore of Botrytis cinerea. Then the disease degree, active ingredients and resistance-related enzyme activity of the blueberry were determined. Results: Oleanolic acid and ursolic acid significantly reduced the decay rate and weight loss rate of dewaxed / waxy intact blueberry, maintained TSS, firmness, VC, total phenol and anthocyanin, and inhibited the increase of TA and MDA. In addition, the activities of peroxidase (POD), polyphenol oxidase (PPO), chitinase (CHT) and β-1, 3-glucanase (GLU), phenylalanine ammonia lyase (PAL) were increased by oleanolic acid and ursolic acid treatment. Conclusion: Oleanolic acid and ursolic acid in cuticular wax of blueberry can improve the postharvest disease resistance and maintain the quality of fruits.
Key words:  blueberry  disease resistance  cuticular wax  oleanolic acid (OA)  ursolic acid (UA)

分享按钮