[1]魏秋平,安振锋,章文华.多胺调节拟南芥幼苗耐盐性的初步研究[J].南京农业大学学报,2008,31(3):55-59.[doi:10.7685/j.issn.1000-2030.2008.03.011]
 WEI Qiu-ping,AN Zhen-feng,ZHANG Wen-hua.Primary study on salt tolerance regulated by polyamines in Arabidopsis seedlings[J].Journal of Nanjing Agricultural University,2008,31(3):55-59.[doi:10.7685/j.issn.1000-2030.2008.03.011]
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多胺调节拟南芥幼苗耐盐性的初步研究()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
31卷
期数:
2008年3期
页码:
55-59
栏目:
出版日期:
2008-08-30

文章信息/Info

Title:
Primary study on salt tolerance regulated by polyamines in Arabidopsis seedlings
作者:
魏秋平安振锋章文华
南京农业大学生命科学学院,江苏,南京,210095
Author(s):
WEI Qiu-ping AN Zhen-feng ZHANG Wen-hua
College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
关键词:
拟南芥 盐胁迫 多胺
Keywords:
Arabidopsis salt stress polyamines
分类号:
Q945
DOI:
10.7685/j.issn.1000-2030.2008.03.011
文献标志码:
A
摘要:
比较了4种外源多胺(腐胺、尸胺、精胺、亚精胺)缓解拟南芥盐害的作用,结果发现0.01 mmol.L-1精胺的缓解效果最好。对不同浓度NaC l处理下内源多胺含量进行测定,发现随着盐浓度的增加,游离态亚精胺含量显著下降,而精胺含量逐渐升高。0.01 mmol.L-1的外源精胺处理可以降低100 mmol.L-1NaC l处理下植株体内的Na+/K+。上述结果表明,精胺对拟南芥幼苗盐胁迫下离子平衡的调节作用可能是其缓解盐害的一个重要机制。
Abstract:
The effects of four exogenous polyamines(putrescine, cadaverine, spermidine, spermine)on salt tolerance in Arabidopsis were investigated. 0.01 mmol·L-1 spermine(Spm)was found to have the strongest alleviated effect on salt stress in Arabidopsis. The observation of the change in endogenous polyamine contents showed that free spermidine(Spd)contents in the seedlings obviously decreased while Spm content increased with the rising of NaCl concentrations. 0.01 mmol·L-1 Spm reduced the ratio of Na+/K+ under 100 mmol·L-1 NaCl stress. These results suggest that the regulatory effect of spermine on the ion balance in Arabidopsis under salt stress may be an important mechanism of its alleviated effect on the salt stress.

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备注/Memo

备注/Memo:
国家重点基础研究发展计划(2006CB100100);教育部新世纪优秀人才资助计划(NCET-04-0504);国家杰出青年基金(30625027)
更新日期/Last Update: 2008-08-30