| 茶树接种VA菌根的生理特性研究 |
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| 引用本文： | 李远华,郑芳,倪德江,杨江帆,石玉涛.茶树接种VA菌根的生理特性研究[J].茶叶科学,2011,31(6):504-512. |
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| 作者姓名： | 李远华 郑芳 倪德江 杨江帆 石玉涛 |
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| 作者单位： | 1. 武夷学院茶学与生物系茶学专业,福建省高校茶叶工程研究中心,福建 武夷山 354300; 2. 华中农业大学园艺林学学院茶学专业,湖北 武汉 430070 |
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| 基金项目： | 国家自然科学基金面上项目（31070613）、福建省自然科学基金面上项目（2010J01225）、福建省大学生创新性实验计划项目（2010）、福建省教育厅A类科技项目（JA10270）、南平市科技项目〔N2010Z10（2）〕 |
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| 摘 要： | 茶树接种VA菌根（丛枝菌根）的生理特性研究表明,茶树叶片接种VA菌根50d后,其叶绿素含量都高于未接种的。在光合有效辐射0~1200μmol/m2·s,接种VA菌根的茶树,其净光合速率、气孔导度、蒸腾速率等均有提高;而水分利用率前期快速增加,达到高峰然后下降;茶树叶片相对含水量先上升后下降,叶片的自然饱和亏逐渐降低。接种VA菌根后,随着侵染率的增加,茶树叶片的丙二醛含量越少,脯氨酸的含量先降低后升高。VA菌根能够提高茶树保护酶的活性,在生长到90d时,过氧化物酶（POD）活性达到最高值,超氧化物歧化酶（SOD）活性先升高再降低,但增加幅度均比较小;对过氧化氢酶（CAT）活性的影响一直高于未接种的。
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| 关 键 词： | 茶树 VA菌根 生理特性 |
| 收稿时间： | 2011-04-01 |
Study on Physiological Characteristic of Tea Plant Inoculated by VA Mycorrhiza |
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| LI Yuan-hua,ZHENG Fang,NI De-jiang,YANG Jiang-fan,SHI Yu-tao.Study on Physiological Characteristic of Tea Plant Inoculated by VA Mycorrhiza[J].Journal of Tea Science,2011,31(6):504-512. |
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| Authors: | LI Yuan-hua ZHENG Fang NI De-jiang YANG Jiang-fan SHI Yu-tao |
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| Institution: | 1. Department of Tea Science and Biology, Wuyi University, Tea Engineering Research Center of Fujian Higher Education, Wuyishan 354300, China; 2. College of Horticulture and Forestry Science, Huazhong Agricultural University, Wuhan 430070, China |
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| Abstract: | The physiological characteristic of tea plant inoculated by VA mycorrhiza was studied. Results showed that 50d after inoculation, the chlorophyll content in tea leaves inoculated by VA mycorrhiza was higher than that uninoculated by VA mycorrhiza. Results also indicated when the photosynthetical available radiation was in the range of 0~1200μmol/m2·s, the net photosynthesis rate, the stomata conductance and the transpiration rate of the tea plant inoculated by VA mycorrhiza were all higher than those of the control, the water use efficiency (WUE) increased rapidly in earlier stage, then decreased gradually after reaching the peak, the degrees of saturation of leaves decreased gradually. After the tea plant inoculated by VA mycorrhiza, MDA content of tea leaves decreased while the hydroxyproline content decreased first and increased later with the increase of infection rate. The inoculation of VA mycorrhiza can improve the activities of protective enzymes of tea plant. During the resied of 90d after inoculation, the activity of POD reached the peak, the activity of SOD increased slightly first and then decreased smoothly. CAT activity of tea plant treated by VA mycorrhiza was always higher than that of the control. |
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| Keywords: | tea plant VA mycorrhiza physiological characteristic |
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