Sexually different physiological responses of Populus cathayana to nitrogen and phosphorus deficiencies

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地表生过程与生态调控重点实验室

	Sexually different physiological responses of Populus cathayana to nitrogen and phosphorus deficiencies
	Zhang, Sheng1 ; Jiang, Hao1 ; Zhao, Hongxia 1; Korpelainen, Helena 2; Li, Chunyang 1
刊名	TREE PHYSIOLOGY
	2014-04-01
卷号	34 期号:4 页码:343-354
关键词	dioecy nutrient deficiency photosynthesis PNUE PPUE
ISSN号	0829-318X
通讯作者	李春阳
英文摘要	Previous studies have shown that there are significant sexual differences in the morphological and physiological responses of Populus cathayana Rehder under stressful conditions. However, little is known about sex-specific differences in responses to nutrient deficiencies. In this study, the effects of nitrogen (N) and phosphorus (P) deficiencies on the morphological, physiological and chloroplast ultrastructural traits of P. cathayana males and females were investigated. The results showed that N and P deficiencies significantly decreased plant growth, foliar N and P contents, chlorophyll content, photosynthesis, and instantaneous photosynthetic N- and P-use efficiencies (PNUE and PPUE) in both sexes. Males had higher photosynthesis, higher PNUE and PPUE rates, and a lower accumulation of plastoglobules in chloroplasts than did females when exposed to N-and P-deficiency conditions. Nitrogen-deficient males had higher glutamate dehydrogenase and peroxidase activities, and a more intact chloroplast ultrastructure, but less starch accumulation than did N-deficient females. Phosphorus-deficient males had higher nitrate reductase, glutamine synthetase and acid phosphatase activities, but a lower foliar N : P ratio and less PSII damage than did P-deficient females. These results suggest that N and P deficiencies cause greater negative effects on females than on males, and that the different sexes of P. cathayana may employ different strategies to cope with N and P deficiencies.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Forestry
研究领域[WOS]	Forestry
关键词[WOS]	SEX-RELATED DIFFERENCES ; CHLOROPHYLL FLUORESCENCE ; GLUTAMINE-SYNTHETASE ; USE EFFICIENCY ; NUTRIENT-AVAILABILITY ; POTASSIUM-DEFICIENCY ; EUCALYPTUS-GLOBULUS ; ACID-PHOSPHATASES ; FLOWERING PLANTS ; OXIDATIVE STRESS
收录类别	SCI
原文出处	http://www.ncbi.nlm.nih.gov/pubmed/24739232
语种	英语
WOS记录号	WOS:000335892100003
公开日期	2014-12-03
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/7502]
专题	成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 2.Univ Helsinki, Dept Agr Sci, FI-00014 Helsinki, Finland
推荐引用方式 GB/T 7714	Zhang, Sheng,Jiang, Hao,Zhao, Hongxia,et al. Sexually different physiological responses of Populus cathayana to nitrogen and phosphorus deficiencies[J]. TREE PHYSIOLOGY,2014,34(4):343-354.
APA	Zhang, Sheng,Jiang, Hao,Zhao, Hongxia,Korpelainen, Helena,&Li, Chunyang.(2014).Sexually different physiological responses of Populus cathayana to nitrogen and phosphorus deficiencies.TREE PHYSIOLOGY,34(4),343-354.
MLA	Zhang, Sheng,et al."Sexually different physiological responses of Populus cathayana to nitrogen and phosphorus deficiencies".TREE PHYSIOLOGY 34.4(2014):343-354.