Positive effects of night warming on physiology of coniferous trees in late growing season: Leaf and root

doi:10.1016/j.actao.2016.02.002

	Positive effects of night warming on physiology of coniferous trees in late growing season: Leaf and root
	Tang, Bo 1,3; Yin, Chunying 1; Wang, Yujie 2; Sun, Yuyu 1,3; Liu, Qing 1
刊名	ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY
	2016-05
卷号	73 页码:21-30
关键词	Gas exchange Net influx of NH4+ and NO3- in root Root nitrate reductase activity Root physiology
ISSN号	1146-609X
DOI	10.1016/j.actao.2016.02.002
产权排序	1
文献子类	Article
英文摘要	Previous studies about the effects of experimental warming on tree species have focused primarily on response of morphology and physiology in leaf and biomass allocation in the growing season, and a few studies considered the importance of roots. Based on the available evidence, it is unclear whether photosynthesis rate is enhanced by night warming in late autumn an issue that deserves further investigation. Thus, we exposed two coniferous species, Picea asperata and Abies faxoniana, to night warming continued throughout the year to investigate morphological and physiological responses of roots and leaves in the autumn. The results showed that night warming caused significant increases in net influxes of NH4+ and NO3- in P. asperata seedlings corresponding well with net H+ efflux and net influx of O-2. Meanwhile, night warming had a positive effect on foliar gas exchange such as net photosynthesis rate, apparent quantum efficiency, dark respiration rate and maximum quantum efficiency of PS II, and nitrate reductase activity of roots. Additionally, root morphology such as total roots length, surface area, specific root area and specific root length was also stimulated by night warming. In contrast, night warming decreased concentrations of non-structural carbohydrate in leaves and roots of both species in autumn. The present study demonstrates that night warming would enhance late autumn leaf photosynthetic rate, and increase N uptake capacity of roots. (C) 2016 Elsevier Masson SAS. All rights reserved.
学科主题	Environment/ecology
URL标识	查看原文
WOS关键词	NITRATE REDUCTASE-ACTIVITY ; ELEVATED CO2 ; ABIES-FAXONIANA ; SPECIES RICHNESS ; TEMPERATE STEPPE ; CARBON-DIOXIDE ; PICEA-ASPERATA ; CLIMATE-CHANGE ; PLANT BIOMASS ; CHLOROPHYLL-A
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000376707000003
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/29903]
专题	成都生物研究所_生态研究
通讯作者	Yin, Chunying
作者单位	1.Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, P.O. Box 416, Chengdu 610041, PR China; 2.UNC Gillings Sch Global Publ Hlth, 135 Dauer Dr, Chapel Hill, NC 27599 USA 3.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China;
推荐引用方式 GB/T 7714	Tang, Bo,Yin, Chunying,Wang, Yujie,et al. Positive effects of night warming on physiology of coniferous trees in late growing season: Leaf and root[J]. ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY,2016,73:21-30.
APA	Tang, Bo,Yin, Chunying,Wang, Yujie,Sun, Yuyu,&Liu, Qing.(2016).Positive effects of night warming on physiology of coniferous trees in late growing season: Leaf and root.ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY,73,21-30.
MLA	Tang, Bo,et al."Positive effects of night warming on physiology of coniferous trees in late growing season: Leaf and root".ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY 73(2016):21-30.