Adaptive responses of Populus przewalskii to drought stress and SNP application

	Adaptive responses of Populus przewalskii to drought stress and SNP application
	Lei, YB; Yin, CY; Li, CY; Lei, YB, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China.
刊名	ACTA PHYSIOLOGIAE PLANTARUM
	2007
卷号	29 期号:6 页码:519_526
关键词	Antioxidant Enzymes Drought Stress Osmotic Adjustment Proline Accumulation
ISSN号	0137-5881
产权排序	2
英文摘要	In this study we used the cuttings of Populus przewalskii Maximowicz as experimental material and sodium nitroprusside (SNP) as nitric oxide (NO) donor to determine the physiological and biochemical responses to drought stress and the effect of NO on drought tolerance in woody plants. The results indicated that drought stress not only significantly decreased biomass production, but also significantly increased hydrogen peroxide content and caused oxidative stress to lipids and proteins assessed by the increase in malondialdehyde and total carbonyl contents, respectively. The cuttings of P. przewalskii accumulated many amino acids for osmotic adjustment to lower water potential, and activated the antioxidant enzymes such as superoxide dismutase, guaiacol peroxidase and ascorbate peroxidase to maintain the balance of generation and quenching of reactive oxygen species. Moreover, exogenous SNP application significantly heightened the growth performance of P. przewalskii cuttings under drought treatment by promotion of proline accumulation and activation of antioxidant enzyme activities, while under well-watered treatment the effect of SNP application was very little.
学科主题	Plant Sciences
语种	英语
公开日期	2011-07-08
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/22018]
专题	成都生物研究所_生态研究
通讯作者	Lei, YB, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China.
推荐引用方式 GB/T 7714	Lei, YB,Yin, CY,Li, CY,et al. Adaptive responses of Populus przewalskii to drought stress and SNP application[J]. ACTA PHYSIOLOGIAE PLANTARUM,2007,29(6):519_526.
APA	Lei, YB,Yin, CY,Li, CY,&Lei, YB, Chinese Acad Sci, Chengdu Inst Biol, POB 416, Chengdu 610041, Peoples R China..(2007).Adaptive responses of Populus przewalskii to drought stress and SNP application.ACTA PHYSIOLOGIAE PLANTARUM,29(6),519_526.
MLA	Lei, YB,et al."Adaptive responses of Populus przewalskii to drought stress and SNP application".ACTA PHYSIOLOGIAE PLANTARUM 29.6(2007):519_526.