| 灰葡萄孢菌侵染对采后猕猴桃果实生理生化指标的影响 |
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| 引用本文： | 刘霞,袁海英,任云,孙志强,刘燃,刘奕清.灰葡萄孢菌侵染对采后猕猴桃果实生理生化指标的影响[J].经济林研究,2019,37(2):41-48. |
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| 作者姓名： | 刘霞 袁海英 任云 孙志强 刘燃 刘奕清 |
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| 作者单位： | 重庆文理学院 特色植物研究院,重庆 永川 402160;重庆文理学院 重庆市特色植物产业协同创新中心,重庆 永川 402160;重庆文理学院 重庆市经济植物生物技术重点实验室,重庆 永川 402160;西南大学 园艺园林学院,重庆 北碚,401120;烟台绿云生物科技有限公司,山东 烟台,264003;重庆市幅沅农业生物技术研究院有限公司,重庆 永川,402160 |
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| 基金项目： | 国家自然科学基金;重庆市教委科学技术研究项目;重庆市教委科学技术研究项目;重庆文理学院科研项目;重庆市园艺学重点学科资助项目 |
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| 摘 要： | 为给采后猕猴桃果实的保鲜、病害防治及抗病育种提供参考依据,以红肉系列的当家品种‘红阳’猕猴桃为试材,以浓度为104个/mL的灰葡萄孢菌悬浮液对其果实分别进行了0、24、48、72、96、120h的侵染处理,就不同处理对诱发猕猴桃果实采后病变腐烂及其生理生化指标的影响情况进行了试验研究。试验结果表明:各处理的猕猴桃果实内4种防御酶(POD、SOD、CAT和PAL)活性、总酚和木质素含量均呈先升高后下降的变化趋势;其内源激素IAA和GA含量均呈先升高后降低的变化趋势,SA含量则呈逐渐增长趋势,ABA含量呈先上升后降低再升高的变化趋势。分析结果表明:猕猴桃果实在受到灰葡萄孢菌侵染胁迫下能有效激活其与抗病相关的生理生化指标,通过形成较强的防御酶活性或提高其木质素、多酚及内源激素的含量来缓解病菌逆境对其造成的伤害;各项生理生化指标在猕猴桃果实与灰葡萄孢菌的互作过程中是相互联系的,而不是某一项生理生化指标(防御酶或激素)单独起作用的。
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| 关 键 词： | 猕猴桃 灰葡萄孢菌 生理生化 抗性应答 |
Effects of Botrytis cinerea infection on physiological and biochemical indexes in postharvest kiwifruits |
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| LIU Xia,YUAN Haiying,REN Yun,SUN Zhiqiang,LIU Ran,LIU Yiqing.Effects of Botrytis cinerea infection on physiological and biochemical indexes in postharvest kiwifruits[J].Economic Forest Researches,2019,37(2):41-48. |
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| Authors: | LIU Xia YUAN Haiying REN Yun SUN Zhiqiang LIU Ran LIU Yiqing |
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| Institution: | (Institute of Special Plants,Chongqing University of Arts and Sciences,Yongchuan 402160,Chongqing,China;Collaborative Innovation Center of Special Plant Industry in Chongqing,Chongqing University of Arts and Sciences,Yongchuan 402160,Chongqing,China;Chongqing Key Laboratory of Economic Plant Biotechnology,Chongqing University of Arts and Sciences,Yongchuan 402160,Chongqing,China;College of Horticulture and Landscape,Southwest University,Beibei 401120,Chongqing,China;Yantai Lüyun Biological Technology Co.,Ltd.,Yantai 264003,Shandong,China;Chongqing Fuyuan Agricultural Biotechnology Research Institute Co.,Ltd.,Yongchuan 402160,Chongqing,China) |
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| Abstract: | In order to provide some references for preservation, disease control and disease-resistance breeding of postharvest kiwifruit, using a red flesh cultivar of ‘Hongyang’ kiwifruit as test materials, fruits were respectively infected with Botrytis cinerea suspension (104 spores/mL) for 0, 24, 48, 72, 96 and 120 h, and effects of different treatments on rot resistance and some physiological and biochemical indexes of kiwifruit were studied. The results showed that activities of four defense enzymes (POD, SOD, CAT and PAL), total phenol and lignin contentsin treated kiwifruits were all increased, and then decreased. Among the endogenous hormones, contents of IAA and GA were firstly increased and then decreased, while SA content was increased gradually, ABA content was increased, decreased, and finally increased. These indicate that kiwifruit could effectively activate its physiological and biochemical indexes related to disease resistance under stress of B. cinerea infecting, and damages caused bypathogens could be alleviated through forming stronger defense enzyme activity or increasing contents of lignin, polyphenols and endogenous hormones. Physiological and biochemical indexes were interrelated in interaction between kiwifruit and B. cinerea, and rather than acting result of single physiological and biochemical index (defense enzyme or hormone). |
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| Keywords: | kiwifruit Botrytis cinerea physiology and biochemistry resistance response |
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