|
|||||
|
|
| 鸭梨果实接种轮纹病菌及生长期、贮藏期防御酶系活性变化的研究 | |
| 引用本文： | 祝美云,赵晓芳,王贵禧,王艳娜,梁丽松.鸭梨果实接种轮纹病菌及生长期、贮藏期防御酶系活性变化的研究[J].农业工程学报,2008,24(3):251-255. |
| 作者姓名： | 祝美云 赵晓芳 王贵禧 王艳娜 梁丽松 |
| 作者单位： | 1. 河南农业大学食品科学技术学院,郑州,450002 2. 河南农业大学食品科学技术学院,郑州450002;中国林业科学研究院林业研究所,国家林业局林木培育实验室,北京100091 3. 中国林业科学研究院林业研究所,国家林业局林木培育实验室,北京100091 |
| 摘 要： | 该文研究了鸭梨果实受轮纹病原菌(Botryosphaeria berengriana f.sp.piricola)侵染后,及其在不同的生长期、贮藏期防御酶活性的变化.结果表明:鸭梨果实中多酚氧化酶(PPO)活性在接种轮纹病菌48 h内显著高于对照,苯丙氨酸解胺酶(PAL)活性在接种120 h内一直呈上升趋势,过氧化物酶(POD)和过氧化氢酶(CAT)活性在接种后72 h出现活性高峰,超氧化物歧化酶(SOD)活性在接种后120 h内也显著高于对照,说明这些酶对鸭梨果实抵抗轮纹病密切相关. 鸭梨果实在幼果期抗性相关酶主要是PPO、POD、PAL和CAT,在盛花后25～75 d能够保持较高的活性,而后均显著下降;在近成熟期与果实抗病性相关酶主要是SOD和PAL,SOD活性在盛花后75 d快速升高至成熟采收达到最大值,PAL活性在花后115 d出现较小的活性高峰.鸭梨果实在贮藏期间与抗病性相关的这5种酶活性总体呈下降趋势,对抵抗病原扩展能力减弱.果实在不同时期对病原菌的抵抗能力与果实中防御酶活性变化密切相关. |
| 关 键 词： | 鸭梨果实 轮纹病菌 防御酶 生长期 贮藏期 |
| 文章编号： | 1002-6819(2008)03-0251-05 |
| 收稿时间： | 3/5/2007 12:00:00 AM |
| 修稿时间： | 2007年3月5日 |
Changes of defense enzyme activity in 'Ya' pear fruit inoculated with Botryosphaeria berengriana during growth and storage periods |
|
| Zhu Meiyun,Zhao Xiaofang,Wang Guixi,Wang Yanna and Liang Lisong.Changes of defense enzyme activity in ''''Ya'''' pear fruit inoculated with Botryosphaeria berengriana during growth and storage periods[J].Transactions of the Chinese Society of Agricultural Engineering,2008,24(3):251-255. | |
| Authors: | Zhu Meiyun Zhao Xiaofang Wang Guixi Wang Yanna and Liang Lisong |
| Institution: | College of Food Science and Technology,Henan Agricultural University,Zhengzhou 450002,China,1.College of Food Science and Technology,Henan Agricultural University,Zhengzhou 450002,China;2.Research Institute of Forestry,Chinese Academy of Forestry,Key Laboratory of Forest Silviculture of State Forestry Administration,Beijing 100091,China,Research Institute of Forestry,Chinese Academy of Forestry,Key Laboratory of Forest Silviculture of State Forestry Administration,Beijing 100091,China,Research Institute of Forestry,Chinese Academy of Forestry,Key Laboratory of Forest Silviculture of State Forestry Administration,Beijing 100091,China and Research Institute of Forestry,Chinese Academy of Forestry,Key Laboratory of Forest Silviculture of State Forestry Administration,Beijing 100091,China |
| Abstract: | |
| Keywords: | |
| 本文献已被 维普 万方数据 等数据库收录！ | |
| 点击此处可从《农业工程学报》浏览原始摘要信息 | |
| 点击此处可从《农业工程学报》下载免费的PDF全文 | |