干旱区生态环境知识资源中心(Arid): Drought differently affects growth properties, leaf ultrastructure, nitrogen absorption and metabolism of two dominant species of Hippophae in Tibet Plateau

Arid

DOI	10.1007/s11738-018-2785-6
	Drought differently affects growth properties, leaf ultrastructure, nitrogen absorption and metabolism of two dominant species of Hippophae in Tibet Plateau
	Chen, Juan 1; Li, Yudong 2; Luo, Yan 2; Tu, Weiguo 2; Wan, Ting 2
通讯作者	Chen, Juan
来源期刊	ACTA PHYSIOLOGIAE PLANTARUM
ISSN	0137-5881
EISSN	1861-1664
出版年	2019
卷号	41 期号:1
英文摘要	Hippophae has been exploited as food, medicine as well as pioneer species for fixing nitrogen (N) and preventing desertification in Tibetan Plateau. In the paper, the eco-physiological responses and adaptive abilities of Hippophae rhamnoides and Hippophae thibetana seedlings under two levels of drought (50% and 30% field capacity) were investigated. The results indicated that two drought treatments differently affected biomass partition, water use efficiency, ammonia (NH4-N) and nitrate nitrogen (NO3-N) absorption, contents of hydrolysable amino acids (AA) and leaf ultrastructure of the two species of Hippophae. The two species had better resistance to moderate drought, while extreme drought showed more negative effects on biomass and ultrastructure of H. rhamnoides. Two drought treatments significantly increased water use efficiency of the two species. In H. rhamnoides, the two levels of drought stresses decreased the absorption of ammonia and nitrate nitrogen, whereas only inhibited NO3-N absorption of H. thibetana. The H. thibetana seedlings had more root nodules and higher R/S ratio than H. rhamnoides, while H. rhamnoides seedlings increased most individual and total AA in leaf and root organs under two drought treatments. The different growth, N-related absorption as well as metabolism responses of the two dominant species of Hippophae to drought stress may affect seedling colonization, the ecological function of N fixation and preventing desertification in Tibet Plateau in the future.
英文关键词	Hippophae Biomass C-13 N absorption and metabolism Drought
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000451953200002
WOS关键词	AMINO-ACIDS ; PHYSIOLOGICAL-RESPONSES ; PLANT-RESPONSES ; GAS-EXCHANGE ; RHAMNOIDES ; CARBON ; RESISTANCE ; STRESS ; COORDINATION ; ASSIMILATION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/213861
作者单位	1.Mianyang Normal Univ, Sichuan Prov Key Lab Ecol Secur & Protect, Mianyang 621000, Peoples R China; 2.Sichuan Prov Acad Nat Resource Sci, Sichuan Prov Lab Biot Resource Protect & Sustaina, Chengdu 610041, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Chen, Juan,Li, Yudong,Luo, Yan,et al. Drought differently affects growth properties, leaf ultrastructure, nitrogen absorption and metabolism of two dominant species of Hippophae in Tibet Plateau[J],2019,41(1).
APA	Chen, Juan,Li, Yudong,Luo, Yan,Tu, Weiguo,&Wan, Ting.(2019).Drought differently affects growth properties, leaf ultrastructure, nitrogen absorption and metabolism of two dominant species of Hippophae in Tibet Plateau.ACTA PHYSIOLOGIAE PLANTARUM,41(1).
MLA	Chen, Juan,et al."Drought differently affects growth properties, leaf ultrastructure, nitrogen absorption and metabolism of two dominant species of Hippophae in Tibet Plateau".ACTA PHYSIOLOGIAE PLANTARUM 41.1(2019).