邻羟基苯甲酸对不同化感型杉木无性系内源激素含量的化感效应  

Allelopathic effect of salicylic acid on endogenous hormone content in Chinese fir clone

作　　者：杨梅[1] 曹光球[2,3] 黄燕华[4] 林思祖[2,3] 

机构地区：[1]广西大学林学院,南宁530004 [2]福建农林大学林学院,福州350002 [3]福建省杉木工程技术研究中心,福州350002 [4]福建农林大学图书馆,福州350002

出　　处：《中国生态农业学报》2011年第1期124-129,共6页Chinese Journal of Eco-Agriculture

基　　金：国家自然科学基金项目(30901050);博士后科学基金项目(20100470864);福建省教育厅项目(JA09090)资助

摘　　要：以筛选的自毒物质忍耐型(01号)和自毒物质敏感型(02号)杉木无性系为试验材料,采用胁迫试验分析邻羟基苯甲酸对2个不同化感型杉木无性系内源激素含量的化感效应。研究结果表明,邻羟基苯甲酸对不同化感型杉木无性系ABA含量表现为促进效应,其中对01号杉木无性系的促进效应大于02号;邻羟基苯甲酸对不同化感型杉木无性系IAA、GA3含量表现为抑制效应,胁迫后期邻羟基苯甲酸对02号无性系GA3含量的抑制效应较01号强,2个无性系间IAA含量的抑制效应差异不明显;邻羟基苯甲酸对不同化感型杉木无性系ZR含量的化感效应表现为胁迫第20d达到抑制效应高峰期,随后抑制作用下降,邻羟基苯甲酸对02号无性系ZR含量的抑制效应强于01号无性系。Autotoxins-tolerant clone （No. 01） and autotoxins-sensitive clone （No. 02） of Chinese fir were used to determine allelopathic effects of salicylic acid on endogenous hormone content of different Chinese fir clones. The results showed that salicylic acid promoted ABA concentration, and it was much more in clone No. 01 than in clone No. 02. Though salicylic acid lowered IAA and GA3 content in both clones, the effect was greater for GA3 in clone No. 02 than in clone No. 01 at the later stage of the experiment. However, inhibitory effects of salicylic acid stress on IAA were not significantly different for both clones. Inhibitory effect of salicylic acid stress on ZR increased with stress time and peaked at 20 day into the experiment for both clones, and it then dropped, with a stronger effect on clone No. 02 than clone No. 01.

关 键 词：杉木 化感型无性系 邻羟基苯甲酸 内源激素 化感作用 

分 类 号：S719.27[农业科学—林学] S718.53