华北农学报 ›› 2005, Vol. 20 ›› Issue (4): 25-27. doi: 10.3321/j.issn:1000-7091.2005.04.007

所属专题: 油料作物 抗旱节水

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亚精胺提高大豆幼苗的抗旱性

张胜1, 刘怀攀2, 陈龙2, 刘友良3   

  1. 1. 河南漯河职业技术学院, 河南漯河 462000;
    2. 河南周口师范学院植物学重点实验室, 河南周口 466000;
    3. 南京农业大学生命科学学院, 江苏南京 210095
  • 收稿日期:2005-03-11 出版日期:2005-08-28
  • 作者简介:张胜(1962- ),男,硕士,高级讲师,主要从事植物生理研究。
  • 基金资助:
    国家自然科学基金项目(30370850);河南省自然科学基金(0411031500)资助

Spd Enhanced Resistance of Soybean Seedling Under Water Stress

ZHANG Sheng1, LIU Huai-pan2, CHEN Long2, LIU You-liang3   

  1. 1. Luohe Vocational and Technical College, Luohe 462000, China;
    2. Key Lab of Plant Science, Zhoukou Normal College, Zhoukou 466000, China;
    3. College of Life Science, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2005-03-11 Published:2005-08-28

摘要: 对亚精胺(spermidine,Spd)在抗旱性不同的大豆品种幼苗中的作用进行了研究。结果表明,抗旱品种豫豆24号在渗透胁迫处理时,其叶片中的Spd含量明显大于不抗旱的豫豆6号。用Spd合成的抑制剂MGBG处理豫豆24号,则导致Spd含量下降和抗性的降低,外源Spd又可逆转MGBG对豫豆24号在渗透胁迫下的伤害。外源Spd可以明显提高豫豆6号的叶片内Spd含量,并相应提高其抗性。以上结果表明,Spd可以提高大豆幼苗的抗渗透胁迫能力。

关键词: 大豆, 渗透胁迫, 亚精胺

Abstract: The effect of spermidine on soybean seedlings underwater stress was investigated.The results showed that under water stress,the Spd in leaves increased much more markedly in drough-t tolerant Yudou No.24 than in drough-t sensitive Yudou No.6.Treatment of methylglyoxa-l bis(guanylhydaione) (MGBG),an s-adenosylmethionine decarboxylase (Which catalyzes the Spd synthesis) inhibitor,brought about aparent reduction of Spd in leaves of Yudou No.24 seedlings subjected to water stress,which was in concert with the decrease of its seedling resistance to stess.Exogenous Spd could reverse MGBG injury effect on Yudou No.24 seeddlings under stress.Furthermore,exogenous Spd could elevate the endogenous.Spd level in leaves of Yudou No.6 seedlings subjected to water stress and alleviate its injury.The results above suggested that Spd could enhance resistance of soybean seedling subjected to water stress.

Key words: Soybean, Osmotic stress, Spd

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引用本文

张胜, 刘怀攀, 陈龙, 刘友良. 亚精胺提高大豆幼苗的抗旱性[J]. 华北农学报, 2005, 20(4): 25-27. doi: 10.3321/j.issn:1000-7091.2005.04.007.

ZHANG Sheng, LIU Huai-pan, CHEN Long, LIU You-liang. Spd Enhanced Resistance of Soybean Seedling Under Water Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2005, 20(4): 25-27. doi: 10.3321/j.issn:1000-7091.2005.04.007.

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