| 引用本文： |
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杨章旗,颜培栋,舒文波.内源激素动态变化与马尾松优良种源抗寒性的关系[J].广西科学,2009,16(1):87-91. [点击复制]
- YANG Zhang-qi,YAN Pei-dong,SHU Wen-bo.Relationships between Dynamic Changes of Endogenous Hormones and Cold-resistance of Improved Provenance of Pinus massoniana[J].Guangxi Sciences,2009,16(1):87-91. [点击复制]
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| 摘要: |
| 以广西桐棉和广西古蓬马尾松(Pinus massoniana Lamb.)种源叶片为材料,应用间接酶联免疫法(ELISA)测定内源激素脱落酸(ABA)、赤酶素(GA3)、吲哚乙酸(IAA)、玉米核苷(ZR)含量,分析不同种源苗期的抗寒性与内源激素含量的关系。结果表明,马尾松抗寒力的评价指标为内源GA3含量、ABA/GA3(k值)和ZR/ABA值,内源GA3含量越高,抗性越差;k值越大,抗寒力越强;ZR/ABA值越大,抗寒力越强。 |
| 关键词: 马尾松 种源 内源激素 抗寒性 |
| DOI： |
| 投稿时间：2008-11-08修订日期：2009-01-10 |
| 基金项目:广西科学基金项目(桂科基0236036);广西科技厅项目(桂科能0443001-9)资助 |
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| Relationships between Dynamic Changes of Endogenous Hormones and Cold-resistance of Improved Provenance of Pinus massoniana |
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YANG Zhang-qi, YAN Pei-dong, SHU Wen-bo
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| (Guangxi Forestry Science Academy, State Forestry Bureau Laboratory of Fast-Growing Tree Breeding and Cultivation in Central South of China, Nanning, Guangxi, 530001, China) |
| Abstract: |
| The leaves of two improved provenances of Pinus massoniana were taken as experimental materials of which the four endogenous hormones such as ABA, GA3, IAA, ZR were measured by Enyme-Linked Immunosorbent Assays (ELISA).And the relationships between cold-resistance and endogenous hormones contents of seedlings from different provenances were analyzed combining with their growth traits.The research result indicates that the cold-resistance of Gupeng provenance is better than that of Tongmian provenance.Meanwhile, the cold-resistance indices of P.massoniana include the content of endogenous GA3, k, the ratio of ZR/ABA.And the higher the endogenous GA3 is, the worse the resistance is;the cold-resistance increases with the ascending of k;furthermore, the increasing value of the rate of ZR/ABA can show the better cold-resistance. |
| Key words: Pinus massoniana provenance endogenous hormone cold-resistance |
