| 拟康氏木霉胞外多糖对黄瓜内源水杨酸的诱导作用 |
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| 引用本文： | 魏广金,石磊,张鹏英,陈靠山.拟康氏木霉胞外多糖对黄瓜内源水杨酸的诱导作用[J].曲阜师范大学学报,2009,35(2):94-97. |
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| 作者姓名： | 魏广金 石磊 张鹏英 陈靠山 |
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| 作者单位： | 魏广金,WEI Guang-jin(山东大学生命科学学院,250100;济南市山东大学生命科学学院,250100,济南市);石磊,SHI Lei(曲阜师范大学生命科学学院,273165,山东省曲阜市);张鹏英,陈靠山,ZHANG Peng-ying,CHEN Kao-shan(山东大学生命科学学院,250100,济南市)
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 用0．25mg／mL拟康氏木霉胞外多糖（TPeps-2）处理黄瓜幼苗，处理叶（第1片真叶）中游离态和结合态水杨酸的含量均上升．其中游离态水杨酸（SA）含量在第2天开始显著增高，第3天到达峰值，比对照增加了近1．4倍（138．46％），结合态水杨酸（SAG）含量第3天达到峰值，比对照增加了1．7倍多（172．39％）．SAG的峰值（240．09ng／g FW）要大于SA的峰值（196．73ng／g FW），峰值后SAG的含量均高于SA的含量．系统叶（第2片真叶）中SA和SAG含量同处理叶中的趋势呈正相关，但系统叶中SA和SAG的含量均低于处理叶的同期相应值，说明直接处理的诱导作用更明显．实验表明TPeps-2具有诱导子功能．
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| 关 键 词： | 拟康氏木霉 黄瓜 水杨酸 胞外多糖 |
Induction of An Exopolysaccharide Produced by Trichoderma Pseudokoningii on Endogenous Salicylic Acid in Cucumber Leaves |
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| WEI Guang-jin,SHI Lei,ZHANG Peng-ying,CHEN Kao-shan.Induction of An Exopolysaccharide Produced by Trichoderma Pseudokoningii on Endogenous Salicylic Acid in Cucumber Leaves[J].Journal of Qufu Normal University(Natural Science),2009,35(2):94-97. |
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| Authors: | WEI Guang-jin SHI Lei ZHANG Peng-ying CHEN Kao-shan |
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| Institution: | WEI Guang-jin, SHI Lei, ZHANG Peng-ying, CHEN Kao-shan (1.School of Life Science, Shandong University; 250100, Jinan; 2. College of Life Science, Linyi Normal College; 276005, 3. School of Life Science, Qufu Normal University; 273165, Qufu, Shandong, PRC) |
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| Abstract: | The contents of both the free salicylic acid(SA) and conjugated salicylic acid(SAG) in cucumber leaves treated by an exopolysaccharide produced by Trichoderma pseudokoningii(named TPeps-2) had a significant increasing compared with controlling.The content of SA both in treated leaves and in systemic leaves of cucumber increased to the maximum value on 3rd day after treated,by 238.46 % and 219.90 % respectively compared with controlling.The content of SAG in treated and systemic leaves of cucumber increased ... |
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| Keywords: | Trichoderma pseudokoningii cucumber salicylic acid exopolysaccharide |
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