| 外源信号物质诱导广东高州普通野生稻抗稻瘟病的生理生化机理 |
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| 引用本文： | 吴国昭,谢丽君,宋圆圆,陈敏,曾任森.外源信号物质诱导广东高州普通野生稻抗稻瘟病的生理生化机理[J].西北农业学报,2009,18(3):254-258. |
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| 作者姓名： | 吴国昭 谢丽君 宋圆圆 陈敏 曾任森 |
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| 作者单位： | 1. 农业部生态农业重点开放实验室,广东广州,510642;广东省高等学校农业生态与农村环境重点实验室,广东广州,510642;华南农业大学,热带亚热带生态研究所,广东广州,510642
2. 农业部生态农业重点开放实验室,广东广州,510642;广东省高等学校农业生态与农村环境重点实验室,广东广州,510642 |
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| 基金项目： | 广东省自然科学基金，广东省财政农业专项项目 |
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| 摘 要： | 分别用两个浓度(25和50 μmol/L)的植物防御信号物质茉莉酸甲酯(MeJA)和水杨酸甲酯(MeSA)喷雾处理挺立型广东高州普通野生稻幼苗植株,发现25和50 μmol/L的MeSA能有效提高野生稻幼苗对稻瘟病的抗性,且提高叶片内保护酶POD的活性.25 μmol/L的MeSA在3 d内提高叶片内保护酶SOD的活性.MeJA只有在低浓度下提高野生稻的抗病性,MeJA在1 d 内迅速提高SOD酶活性,而后下降.25 μmol/L水杨酸甲酯处理显著提高叶片内香草酸和咖啡酸的含量,分别约是对照的3.6倍和3.2倍.研究表明,外源信号物质提高普通野生稻对稻瘟病的抗性可能与其诱导植物体内保护酶活性提高及酚酸合成有关.
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| 关 键 词： | 信号物质 水杨酸甲酯 茉莉酸甲酯 普通野生稻 稻瘟病菌 保护酶 诱导抗病性 |
| 收稿时间： | 2008/10/30 0:00:00 |
| 修稿时间： | 2008/12/25 0:00:00 |
The Physiological and Biochemical Mechanisms of Disease Resistance of Oryza rufipogon Griff.Indigenous to Gaozhou, Guangdong against Pyricularia grisea Induced by Exogenously Applied Plant Signal Compounds |
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| WU Guozhao,XIE Lijun,SONG Yuanyuan,CHEN Min and ZENG Rensen.The Physiological and Biochemical Mechanisms of Disease Resistance of Oryza rufipogon Griff.Indigenous to Gaozhou, Guangdong against Pyricularia grisea Induced by Exogenously Applied Plant Signal Compounds[J].Acta Agriculturae Boreali-occidentalis Sinica,2009,18(3):254-258. |
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| Authors: | WU Guozhao XIE Lijun SONG Yuanyuan CHEN Min and ZENG Rensen |
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| Institution: | Key Laboratory of Ecological Agriculture, Ministry of Agriculture, Guangzhou 510642, China;Key Laboratory of Agroecology and Rural Environment of Guangdong Regular Higher Education Institutions, Guangzhou 510642, China;Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642, China;Key Laboratory of Ecological Agriculture, Ministry of Agriculture, Guangzhou 510642, China;Key Laboratory of Agroecology and Rural Environment of Guangdong Regular Higher Education Institutions, Guangzhou 510642, China;Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642, China;Key Laboratory of Ecological Agriculture, Ministry of Agriculture, Guangzhou 510642, China;Key Laboratory of Agroecology and Rural Environment of Guangdong Regular Higher Education Institutions, Guangzhou 510642, China;Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642, China;Key Laboratory of Ecological Agriculture, Ministry of Agriculture, Guangzhou 510642, China;Key Laboratory of Agroecology and Rural Environment of Guangdong Regular Higher Education Institutions, Guangzhou 510642, China;Key Laboratory of Ecological Agriculture, Ministry of Agriculture, Guangzhou 510642, China;Key Laboratory of Agroecology and Rural Environment of Guangdong Regular Higher Education Institutions, Guangzhou 510642, China;Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642, China |
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| Abstract: | |
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| Keywords: | Signal compound Methyl salicylate Methyl jasmonate Oryza rufipogorc Pyrlcularla grlsea Defense enzymes Induced disease resistance |
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