干旱区生态环境知识资源中心(Arid): Leaf Age, Canopy Position, and Habitat Affect the Carbon Isotope Discrimination and Water-Use Efficiency in Three C-3 Leguminous Prosopis Species from a Hyper-Arid Climate

Arid

DOI	10.3390/plants8100402
	Leaf Age, Canopy Position, and Habitat Affect the Carbon Isotope Discrimination and Water-Use Efficiency in Three C-3 Leguminous Prosopis Species from a Hyper-Arid Climate
	Hussain, M. Iftikhar 1; El-Keblawy, Ali 1,2; Mitterand Tsombou, Francois 2,3
通讯作者	Hussain, M. Iftikhar
来源期刊	PLANTS-BASEL
EISSN	2223-7747
出版年	2019
卷号	8 期号:10
英文摘要	The present study involved measurements of the stable carbon isotope composition (delta C-13) and intrinsic water-use efficiency (iWUE) of three C-3 leguminous Prosopis spp. (P. juliflora, P. cineraria, and P. pallida) foliage at different canopy positions (east and west) from saline (SLH) and non-saline habitats (NSH). Integrated measurements of the stable carbon isotope composition (delta C-13) of plant tissue were broadly used to study iWUE, taking into consideration the effect of leaf age and canopy position on C isotope discrimination. Mature foliage of P. pallida from an SLH with a west canopy position had significantly higher delta C-13 (less negative) than that from NSH. On the west side, Delta C-13 values ranged from 17.8 parts per thousand (P. pallida) to 22.31 parts per thousand (P. juliflora) for a west canopy position, while they varied from 18.05 parts per thousand (P. pallida) to 22.4 parts per thousand (P. cineraria) on the east canopy side. Because the patterns are similar for the three Prosopis species, the difference in carbon isotope discrimination (Delta C-13) between the canopy position (west and east) is relatively consistent among species and sites, ranging between 17.8 +/- 4.43 parts per thousand for the young foliage in the west and 18.05 +/- 4.35 parts per thousand for the east canopy position. The iWUE of P. pallida was twice that of P. cineraria. The iWUE of P. juliflora was higher from NSH than SLH. Mature leaves possessed a higher iWUE than the young leaves. We concluded that exotic P. juliflora and P. pallida have higher iWUE values than the native P. cineraria, which might be due to the rapid below-ground development of plant roots in the Arabian deserts of the United Arab Emirates (UAE). This could enable the alien species access to deeper humid soil layers or water resources.
英文关键词	carbon isotope composition leaf C leaf N intrinsic water-use efficiency canopy position leaf age
类型	Article
语种	英语
国家	U Arab Emirates ; Spain
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000498270000048
WOS关键词	RESPIRED CO2 ; GRASSLAND ; STRESS ; GROWTH
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2019-10-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310150
作者单位	1.Univ Sharjah, RISE, Sharjah 27272, U Arab Emirates; 2.Univ Sharjah, Fac Sci, Dept Appl Biol, Sharjah 27272, U Arab Emirates; 3.Univ Malaga, Dept Biol Vegetal, Malaga 29016, Spain
推荐引用方式 GB/T 7714	Hussain, M. Iftikhar,El-Keblawy, Ali,Mitterand Tsombou, Francois. Leaf Age, Canopy Position, and Habitat Affect the Carbon Isotope Discrimination and Water-Use Efficiency in Three C-3 Leguminous Prosopis Species from a Hyper-Arid Climate[J],2019,8(10).
APA	Hussain, M. Iftikhar,El-Keblawy, Ali,&Mitterand Tsombou, Francois.(2019).Leaf Age, Canopy Position, and Habitat Affect the Carbon Isotope Discrimination and Water-Use Efficiency in Three C-3 Leguminous Prosopis Species from a Hyper-Arid Climate.PLANTS-BASEL,8(10).
MLA	Hussain, M. Iftikhar,et al."Leaf Age, Canopy Position, and Habitat Affect the Carbon Isotope Discrimination and Water-Use Efficiency in Three C-3 Leguminous Prosopis Species from a Hyper-Arid Climate".PLANTS-BASEL 8.10(2019).