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机械性损伤与氨基丁酸的交互作用对烟草防卫性酶活性的影响 被引量:5
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作者 葛少林 程新胜 +1 位作者 杨丽文 薛泽春 《热带亚热带植物学报》 CAS CSCD 北大核心 2005年第4期324-328,共5页
研究β-氨基丁酸(BABA)和剪叶对烟草(NicotianatabacumL.cv.Yunyan85)防卫性酶活性和两者间互作对其抗性激发的影响。结果表明:喷施BABA或剪叶都能明显地提高烟草的苯丙氨酸解氨酶(PAL)和多酚氧化酶(PPO)的活性,且这些酶活性的变化与BAB... 研究β-氨基丁酸(BABA)和剪叶对烟草(NicotianatabacumL.cv.Yunyan85)防卫性酶活性和两者间互作对其抗性激发的影响。结果表明:喷施BABA或剪叶都能明显地提高烟草的苯丙氨酸解氨酶(PAL)和多酚氧化酶(PPO)的活性,且这些酶活性的变化与BABA的浓度和诱抗时间有关。然而在剪叶后使用BABA,会削弱对PAL和PPO活性的诱导。BABA+剪叶处理后烟草花叶病(TMV)症状明显较BABA单独处理的严重,这表明BABA和机械性损伤呈现拮抗效应。BABA及其它以水杨酸(SA)为信号分子的化学诱抗剂可能不适宜用于剪叶后的烟草幼苗。 展开更多
关键词 β氨基丁酸 剪叶损伤 烟草 防卫性酶 拮抗作用
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Effects of β-Amino Butyric Acid Induced Rice Blast Resistance on Reactive Oxygen Metabolism 被引量:5
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作者 李莉 郭晓丽 +5 位作者 刘晓梅 温嘉伟 张秀容 孙辉 赵宇 任金平 《Agricultural Science & Technology》 CAS 2009年第3期112-114,共3页
[Objective] This study was to understand the effects of β-Amino butyric acid(abbreviated as BABA) induced rice blast resistance on reactive oxygen metabolism. [Method] Using the cultivar Chaochan 2 that is highly sus... [Objective] This study was to understand the effects of β-Amino butyric acid(abbreviated as BABA) induced rice blast resistance on reactive oxygen metabolism. [Method] Using the cultivar Chaochan 2 that is highly susceptible to disease as experimental material, the changes of catalase(CAT), and superoxide dismutase(SOD) and MDA activities in rice treated by BABA were investigated. [Result] In rice plants treated by BABA, the activities of CAT and SOD increased, meanwhile the MDA content also rose to some extent, resulting in the disease resistance to rice blast. [Conclusion] By influencing reactive oxygen metabolism, BABA endows rice plants with resistance to rice blast. BABA is safe to environment and has highly resistance-inducing capacity, it could be generalized in production. 展开更多
关键词 β-Amino butyric acid Rice blast Induced resistance
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