| 陈 洁，金晓玲，宁 阳，曾 雯，李瑞雪，曹基武.低温胁迫下3 种含笑对外源ABA
及SA 的生理响应[J].广东农业科学,2015,42(20):34-38 |
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低温胁迫下3 种含笑对外源ABA
及SA 的生理响应 |
| Physiological responses to exogenous ABA & SAin three michelia plants under temperature stress |
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| DOI： |
| 中文关键词: 脱落酸（ABA） 水杨酸（SA） 多脉含笑 黄心夜合 平伐含笑 抗寒性 |
| 英文关键词: abscisic aicd salicylic acid Michelia polyneura C. Y. Wu Michelia martinii Michelia cavaleriei cold resistance |
| 基金项目:国家林业局林业公益性行业科研专项
（201404710） |
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| 摘要点击次数: 2073 |
| 全文下载次数: 661 |
| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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