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当前位置: 首页 > 文章 > 低温胁迫下3种含笑对外源ABA及SA的生理响应 广东农业科学 2015,42 (20) 34-38
Position: Home > Articles > Physiological responses to exogenous ABA & SA in three michelia plants under temperature stress Guangdong Agricultural Sciences 2015,42 (20) 34-38

低温胁迫下3种含笑对外源ABA及SA的生理响应

作  者：
陈洁;金晓玲;宁阳;曾雯;李瑞雪;曹基武
单  位：
中南林业科技大学风景园村学院
关键词：
脱落酸(ABA);水杨酸(SA);多脉含笑;黄心夜合;平伐含笑;抗寒性
摘  要：
以多脉含笑(Michelia polyneura C.Y.Wu)、黄心夜合(Michelia martinii)、平伐含笑(Michelia cavaleriei)3年生平茬苗为试材,研究了低温胁迫下外源喷施激素ABA、SA对3种含笑的叶绿素(Chl)含量、相对电导率(REC)、可溶性蛋白(SP)含量、丙二醛(MDA)含量、超氧化物岐化酶(SOD)活性等抗寒性审理指标的影响。结果表明:不同浓度的ABA和SA均不同程度地提高了3种含笑低温胁迫期叶片SP含量及SOD活性,降低了REC及MDA含量,减缓了叶绿素降解,从而缓解了低温对3种含笑幼苗的伤害程度,其中以ABA 25 mg/L的处理效果最为显著。
译  名：
Physiological responses to exogenous ABA & SA in three michelia plants under temperature stress
作  者：
CHEN Jie;JIN Xiao-ling;NING Yang;ZENG Wen;LI Rui-xue;CAO Ji-wu;College of Landscape Architecture, Central South University of Forestry & Technology;
关键词：
abscisic aicd;;salicylic acid;;Michelia polyneura C.Y.Wu;;Michelia martinii;;Michelia cavaleriei;;cold resistance
摘  要：
Taking the 3-year-old saplings of Michelia polyneura C. Y. Wu,Michelia martinii and Michelia cavaleriei as material,a study was carried out on the effect of hardiness physiology characteristics such as Chl content,relative electric conductivity(REC),soluble protein(SP) content,MDA content and SOD activity with the spraying of exogenous abscisic acid and salicylic acid under low temperature stress. The results showed that SP content and SOD activity were improved to a certain degree by different concentration of ABA and SA,while the REC and MDA content were reduced. The chlorophyll degradation was reduced,so as to alleviate the damage degree of low temperature on the saplings. The effect with the treatment of 25 mg/L ABA was the most significant.

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