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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (19): 100-103.

• 农学 农业基础科学 • 上一篇    下一篇

木麻黄自毒作用物对其幼苗内源激素的影响

林武星   

  • 收稿日期:2009-05-08 修回日期:2009-06-10 出版日期:2009-10-05 发布日期:2009-10-05
  • 基金资助:

    福建纵深防御型沿海防护林体系构建与示范

Effect of Casuarina equisetifolia autotoxicity on endogerous hormones

  • Received:2009-05-08 Revised:2009-06-10 Online:2009-10-05 Published:2009-10-05

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摘要：

以15年生木麻黄根系的水浸液作为他感作用物，采用水培方法研究木麻黄自毒作用对其苗木内源激素的影响。结果表明，木麻黄自毒作用主要表现在对其幼苗叶、根中生长类激素IAA、GR、iPAs和ZRs含量下降，且随自毒作用物质浓度升高下降幅度增大，ABA含量、ABA/IAA、ABA/GA、ABA/iPAs、ABA/ZRs、ABA/IAA+GA+iPAs+ZRs增加，内源激素失衡。木麻黄自毒作用对其根、茎和叶生长量和生物量下降与IAA、GR、iPAs和ZRs含量减少和ABA含量增加及内源激素失衡有密切关系。

关键词: 社会影响评价, 社会影响评价, 社会评价, 工程项目, 研究进展

Abstract:

Effect of autotoxic substance of Casuarina seedling on endogerous hormones were studied using the method of nutritional culture and regarding root water extract of 15-year casuarina. The results indicated that the content of the growth promoting hormones in leaves and roots of casuarina IAA、GR、iPAs and ZRs decreased under autotoxic substances treatment and the content of decreasing was strengthened with the increasing of concentration of autotoxic substances. And the balance of endogenous hormones were broken and the content of ABA increased as well as ABA/IAA,ABA/GA,ABA/iPAs and ABA/ZRs. Under autotoxic substances treatment, the increment and biomass of roots, items and leaves of casuarina has close relation to the reducing of content of IAA,GR,iPAs and ZRs, increasing of content of ABA and the damage of the balance of endogenous hormones.