干旱区生态环境知识资源中心(Arid): Seasonal characteristics of chlorophyll fluorescence kinetics of heteromorphic leaves in Populus Euphratica

Arid

DOI	10.3724/SP.J.1226.2018.00169
	Seasonal characteristics of chlorophyll fluorescence kinetics of heteromorphic leaves in Populus Euphratica
	Chang, ZongQiang; Tao, Hua; Zhu, Qiang
通讯作者	Chang, ZQ
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2018
卷号	10 期号:2 页码:169-179
英文摘要	Populus euphratica Oliver grown in desert areas have polymorphic leaves, which include lanceolate to serrate oval leaves. This paper measures the chlorophyll fluorescence-induction kinetics curves of two types of heteromorphic leaves (lanceolate and serrate oval) of P. euphratica over the growth season in the Ejina Desert area, China. This is in order to study the electron transport, as well as absoprtion, distribtution, and dissipation of light energy and their adaptation characteristics. The results indicate that (1) serrate oval leaves' photosystem II (PSII) initial light-energy-conversion efficiency (Fv/Fm), potential activity (Fv/F-0), and the light-energy-utilization parameter (PI) are higher than those of lanceolate leaves; the accumulated amount of Q(A)-(V-j) and the relative speed of Q(A) deoxidation (M-0) are lower than those of lanceolate leaves; (2) the reaction center density (RC/CS0) and electron-transfer energy (ET0/CS0) in the unit cross-sectional area of serrate oval leaves are higher than those of lanceolate leaves; the energy consumed in unit cross-sectional area (DI0/CS0), and energyflow parameters (ABS/RC, ET0/RC, TR0/RC, and DI0/RC) in the unit reaction center of serrate oval leaves are lower than those of lanceolate leaves; (3) the proportion of energy used for photochemical reaction and energy electron transport in serrate oval leaves (Phi(P0), Psi(0), and Phi(E0)) are larger than those in lanceolate leaves, and the maximum quantum yield (Phi(D0)) of nonphotochemical reaction is less than that of lanceolate leaves. Thus, serrate oval leaves of P. euphratica have a more efficient energy-distribution strategy and better adaptability to extreme environmental conditions than lanceolate leaves.
英文关键词	chlorophyll fluorescence-induction kinetics seasonal changes Populus euphratica Oliver lanceolate leaves oval leaves
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000437513900009
WOS关键词	PHOTOSYSTEM-II ; ELECTRON-TRANSPORT ; DROUGHT ; TRANSIENT ; ENERGY ; YIELD
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332876
作者单位	[Chang, ZongQiang; Tao, Hua; Zhu, Qiang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Chang, ZongQiang,Tao, Hua,Zhu, Qiang. Seasonal characteristics of chlorophyll fluorescence kinetics of heteromorphic leaves in Populus Euphratica[J],2018,10(2):169-179.
APA	Chang, ZongQiang,Tao, Hua,&Zhu, Qiang.(2018).Seasonal characteristics of chlorophyll fluorescence kinetics of heteromorphic leaves in Populus Euphratica.SCIENCES IN COLD AND ARID REGIONS,10(2),169-179.
MLA	Chang, ZongQiang,et al."Seasonal characteristics of chlorophyll fluorescence kinetics of heteromorphic leaves in Populus Euphratica".SCIENCES IN COLD AND ARID REGIONS 10.2(2018):169-179.