干旱区生态环境知识资源中心(Arid): Morphological and physiological differences in heteromorphic leaves of male and female Populus euphratica Oliv.

Arid

DOI	10.1007/s40333-022-0039-3
	Morphological and physiological differences in heteromorphic leaves of male and female Populus euphratica Oliv.
	Li, Xiu; Zhai, Juntuan; Li, Zhijun
通讯作者	Li, ZJ
来源期刊	JOURNAL OF ARID LAND
ISSN	1674-6767
EISSN	2194-7783
出版年	2022
卷号	14 期号:12 页码:1456-1469
英文摘要	Leaf traits can directly reflect the adaptation strategies of plants to the environment. However, there is limited knowledge on the adaptation strategies of heteromorphic leaves of male and female Populus euphratica Oliv. in response to individual developmental stages (i.e., diameter class) and canopy height changes. In this study, morphological and physiological properties of heteromorphic leaves of male and female P. euphratica were investigated. Results showed that both male and female P. euphratica exhibited increased leaf area (LA), leaf dry weight (LDW), leaf thickness (LT), net photosynthetic rate (P-n), transpiration rate (T-r), stomatal conductance (g(s)), proline (Pro), and malondialdehyde (MDA) concentration, decreased leaf shape index (LI) and specific leaf area (SLA) with increasing diameter and canopy height. Leaf water potential (LWP) increased with increasing diameter, LWP decreased significantly with increasing canopy height in both sexes, and carbon isotope fraction (delta C-13) increased significantly with canopy height in both sexes, all of which showed obvious resistance characteristics. However, males showed greater LA, LT, P-n, T-r, and Pro than females at the same canopy height, and males showed significantly higher LA, SLA, LT, P-n, T-r, g(s), and MDA, but lower LWP and delta C-13 than females at the same canopy height, suggesting that male P. euphratica have stronger photosynthetic and osmoregulatory abilities, and are sensitive to water deficiency. Moreover, difference between male and female P. euphratica is closely related to the increase in individual diameter class and canopy height. In summary, male plants showed higher stress tolerance than female plants, and differences in P-n, g(s), T-r, Pro, MDA, delta C-13, and LWP between females and males were related to changes in leaf morphology, diameter class, and canopy height. The results of this study provide a theory for the differences in growth adaptation strategies during individual development of P. euphratica.
英文关键词	arid area canopy height dioecious plants morphology physiological characteristics
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000901996100008
WOS关键词	SEX-RELATED DIFFERENCES ; PHOTOSYNTHETIC CAPACITY ; HIPPOPHAE-RHAMNOIDES ; DIOECIOUS SHRUB ; PLANTS ; TREE ; GROWTH ; RESPONSES ; HEIGHT ; REPRODUCTION
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393341
推荐引用方式 GB/T 7714	Li, Xiu,Zhai, Juntuan,Li, Zhijun. Morphological and physiological differences in heteromorphic leaves of male and female Populus euphratica Oliv.[J],2022,14(12):1456-1469.
APA	Li, Xiu,Zhai, Juntuan,&Li, Zhijun.(2022).Morphological and physiological differences in heteromorphic leaves of male and female Populus euphratica Oliv..JOURNAL OF ARID LAND,14(12),1456-1469.
MLA	Li, Xiu,et al."Morphological and physiological differences in heteromorphic leaves of male and female Populus euphratica Oliv.".JOURNAL OF ARID LAND 14.12(2022):1456-1469.