Morphological and physiological responses of Picea asperata to different nitrogen availability and pH

doi:10.1002/jpln.201900103

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	Morphological and physiological responses of Picea asperata to different nitrogen availability and pH
	Tang, Bo 1,2,3; Man, Jing 1,3; Jia, Ruoyu 1,3; Yin, Chunying 2; Liu, Qing 2
刊名	JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
	2019
卷号	182 期号:6 页码:871-878
关键词	antioxidant enzymes carbohydrate net flux nitrogen availability oxidative stress pH
ISSN号	1436-8730
DOI	10.1002/jpln.201900103
文献子类	Article
英文摘要	Soil nitrogen (N) availability and pH are two determinants affecting plant growth, both of which are influenced by long-term N deposition. However, the physiological mechanism of plants response to the changes in soil N availability and pH are not fully understood. To investigate the response of Picea asperata to both factors, seedlings of P. asperata were exposed to 50 or 1000 mu M NH4NO3 with pH 5 or pH 7. In the current study, P. asperata, regardless of N availability and pH in growth medium, exhibited invariably a NH4 + preference. Lower root biomass, root : shoot mass ratio, total root length and area, and root vitality were detected in high N condition compared to those in low N supply, corresponding well to lower net influxes of NH4 + and NO3 - at the root surface in both pH treatments. These results indicate that P. asperata may employ an active-forge strategy to exploit nutrient resources for growth under low N availability, probably by increased below-ground carbon allocation and net influxes of NH4 + and NO3 - . Although low pH, to some extent may generate more malondialdehyde, P. asperata would enhance pH tolerance by increased detoxification, i.e., antioxidant enzymes (peroxidase), free proline and soluble protein as well as improved carbohydrate status (i.e., soluble sugar and starch).
学科主题	Agronomy ; Plant Sciences ; Soil Science
电子版国际标准刊号	1522-2624
出版地	WEINHEIM
WOS关键词	USE EFFICIENCY ; NITRATE UPTAKE ; FINE ROOTS ; PLANTS ; SEEDLINGS ; FLUXES ; WATER ; LIMITATION ; AMMONIUM ; PROLINE
WOS研究方向	Agriculture ; Plant Sciences
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000481166300001
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31370495, 31070533]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/19678]
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz, Chengdu 610041, Sichuan, Peoples R China 3.Chinese Acad Sci, Chengdu Inst Biol, Ecol Restorat & Biodivers Conservat Key Lab Sichu, Chengdu 610041, Sichuan, Peoples R China 4.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Tang, Bo,Man, Jing,Jia, Ruoyu,et al. Morphological and physiological responses of Picea asperata to different nitrogen availability and pH[J]. JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE,2019,182(6):871-878.
APA	Tang, Bo,Man, Jing,Jia, Ruoyu,Yin, Chunying,&Liu, Qing.(2019).Morphological and physiological responses of Picea asperata to different nitrogen availability and pH.JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE,182(6),871-878.
MLA	Tang, Bo,et al."Morphological and physiological responses of Picea asperata to different nitrogen availability and pH".JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE 182.6(2019):871-878.