| 禾生素和水杨酸对番木瓜PRSV病情及其防御酶活性的影响 |
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| 引用本文： | 张荣萍,杨建超,李慧林,陈 萍,余雪标.禾生素和水杨酸对番木瓜PRSV病情及其防御酶活性的影响[J].热带作物学报,2011,31(5):65-68. |
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| 作者姓名： | 张荣萍 杨建超 李慧林 陈 萍 余雪标 |
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| 作者单位： | 1 海南大学农学院 海南儋州 571737;1 海南大学农学院 海南儋州 571737;1 海南大学农学院 海南儋州 571737;2 海南大学园艺园林学院 海南儋州 571737;3 海南大学环境与植物保护学院 海南儋州 571737 |
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| 摘 要： | 为了研究禾生素(CTS-N)和水杨酸(SA)对番木瓜(Carica papaya L.)较长期抗番木瓜环斑病毒(PRSV)的效果，测定了CTS-N和SA处理后番木瓜300 d内PRSV病情指数变化和CTS-N处理后关键防御酶活性的变化。结果表明，施用CTS-N后番木瓜PRSV病情指数持续偏低，清水和SA处理的则较高，田间第240、270和300天，CTS-N处理的PRSV病情指数显著低于清水和SA处理。CTS-N处理后，番木瓜叶片中多酚氧化酶(PPO)、超氧化物歧化酶(SOD)、过氧化物酶(POD)的
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| 关 键 词： | 禾生素 水杨酸 防御酶活性 番木瓜环斑病毒 病情指数 |
Effects of CTS-N and SA on Papaya Ringspot Virus and Defending Enzyme Activities |
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| Institution: | 1 College of Agronomy, Hainan University, Danzhou, Hainan 571737;1 College of Agronomy, Hainan University, Danzhou, Hainan 571737;1 College of Agronomy, Hainan University, Danzhou, Hainan 571737;2 College of Horticulture and Landscape Architecture, Hainan University, Danzhou, Hainan 571737;3 College of Environment and Plant Protection, Hainan University, Danzhou, Hainan 571737 |
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| Abstract: | In order to study the effects of salicylic acid (SA) and CTS-N, a kind of agent which contains chitosan (CTS), on papaya against papaya ringspot virus (PRSV) more longer, disease index (DI) of PRSV after treatment with SA and CTS-N, and activities of defending enzyme of CTS-N treatments were tested. The results showed that, DI of PRSV of CTS-N treatment kept less continually, while those of water treatment and SA treatment were higher. DI of PRSV of CTS-N treatment was higher than SA and water treatments at 240th, 270th and 300th days evidently. The activities of polyphenol oxidase (PPO), superoxide dismutase (SOD), peroxidase dismutase (POD) of papaya leaves after CTS-N treatments were higher than those of water treatments evidently. As the concentration of CTS-N rose, these activities became higher and longer. |
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| Keywords: | CTS-N SA defending enzyme activity papaya ringspot virus disease index |
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