低温胁迫下鹿蹄草内源激素的变化分析  

Pyrola Changes in Endogenous Hormone under Low Temperature Stress

作　　者：刘琦[1] 孙彩玉[2] 

机构地区：[1]东北林业大学生实验室与设备管理处(分析测试中心),黑龙江哈尔滨150040 [2]东北林业大学生态研究中心,黑龙江哈尔滨150040

出　　处：《安徽农业科学》2013年第34期13330-13331,13334,共3页Journal of Anhui Agricultural Sciences

基　　金：中央高校基本科研业务费专项资金(2572014AB09)资助

摘　　要：以鹿蹄草叶片为材料,进行4℃低温胁迫,研究了鹿蹄草内源激素变化规律。结果显示,在低温胁迫过程中,鹿蹄草体内ABA含量随低温胁迫时间延长大幅度上升,胁迫时间6 d时,ABA含量达到最高,为初始含量的481%,表现为极度敏感;鹿蹄草体内GA含量随胁迫时间延长整体呈现上升趋势,但上升幅度较为缓慢,在胁迫时间4 d时鹿蹄草体内GA含量达到最高,为初始含量的159%;IAA含量则随胁迫时间延长呈现缓慢下降趋势,胁迫时间10 d时鹿蹄草体内IAA含量最低,为初始含量的54%。同时分析了各激素的含量配比,结果显示,在低温胁迫过程中,激素间的含量配比呈现一定的关系。4 ℃ low temperature stress was conducted on Pyrola leaves. The variation law of endogenous hormones was studied. The results showed that in the process of low temperature stress, ABA content increased significantly with cold stress prolonged, when the stress time to 6 d, ABA content reached the highest initial levels of 481 percent, showing extremely sensitive; GA content in the overall upward trend but rise more slowly, when the stress time to reach 4 d highest content of GA, the initial content of 159% ; IAA content is decreasing slowly, when the stress time reach the 10 d IAA content showed the lowest initial concentration of 54 %. The content of the hormone ratio were analyzed, in the process of low temperature stress, hormones ratio showed a certain relationship.

关 键 词：鹿蹄草 低温胁迫 内源激素 

分 类 号：S567[农业科学—中草药栽培]