| H_2O_2位于ABA的上游参与葡萄对低温的应答 |
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| 引用本文： | 刘新,车永梅,卢江.H_2O_2位于ABA的上游参与葡萄对低温的应答[J].北方园艺,2010(23):8-11. |
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| 作者姓名： | 刘新 车永梅 卢江 |
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| 作者单位： | 青岛农业大学,生命科学学院,山东,青岛,266109;中国农业大学,食品与科学学院,北京,100093 |
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| 基金项目： | 农业部"948"资助项目 |
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| 摘 要： | 以抗寒性较强的葡萄品种(砧木)贝达1 a生枝条叶片为材料,研究低温胁迫下贝达叶片中H2O2与ABA含量的变化及外源H2O2和抗坏血酸(AsA)对贝达叶片中ABA含量的影响。结果表明:低温胁迫下贝达叶片中H2O2与ABA含量先增加后降低,具有猝发现象,H2O2猝发时间早于ABA;外施一定浓度的H2O2可以促进贝达内源ABA的积累,缓解5℃低温对膜的伤害;而外施H2O2的清除剂AsA显著降低内源ABA的含量。表明H2O2与ABA参与了贝达对低温胁迫的应答,H2O2可能位于ABA的上游。
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| 关 键 词： | 脱落酸 过氧化氢 低温 葡萄 |
H2O2 Production was Upstream of the Rise of ABA in Response of Grape to Low Temperature |
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| LIU Xin,CHE Yong-mei,LU Jiang.H2O2 Production was Upstream of the Rise of ABA in Response of Grape to Low Temperature[J].Northern Horticulture,2010(23):8-11. |
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| Authors: | LIU Xin CHE Yong-mei LU Jiang |
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| Institution: | LIU Xin1,CHE Yong-mei1,LU Jiang2(1.College of Life Sciences,Qingdao Agricultural University,Qingdao,Shandong 266109,2.College of Food and Science,China Agricultural University,Beijing 100093) |
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| Abstract: | Using leaves from annual branches of grape cultiver Beta as material,the change in hydrogen peroxide(H2O2) and abscisic acid(ABA) content in leaves of Beta under low temperature were measured,the effects of exogenous H2O2 and ascorbic acid(AsA) on endogenous ABA content were studied meanwhile.The results showed that the H2O2 and ABA content in leaves of Beta under low temperature increased firstly then decreased,H2O2 and ABA burst can be seen,the burst of H2O2 was more early than ABA.Exogenous H2O2 promoted... |
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| Keywords: | abscisic acid hydrogen peroxide low temperature grape |
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