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学科主题: Ecology
题名: Factors affecting leaf morphology: a case study of Ranunculus natans C. A. Mey. (Ranunculaceae) in the arid zone of northwest China
作者: Li, Zhongqiang1, 2, 3; Yu, Dan1
通讯作者: Yu, D, Wuhan Univ, State Field Stn Freshwater Ecosyst Liangzi Lake, Wuhan 430072, Peoples R China
关键词: Phenotypic plasticity ; Adaptation ; Main factor ; Aquatic macrophyte ; Arid zone
刊名: ECOLOGICAL RESEARCH
发表日期: 2009-11-01
DOI: 10.1007/s11284-009-0617-2
卷: 24, 期:6, 页:1323-1333
收录类别: SCI
文章类型: Article
部门归属: [Li, Zhongqiang; Yu, Dan] Wuhan Univ, State Field Stn Freshwater Ecosyst Liangzi Lake, Wuhan 430072, Peoples R China; [Li, Zhongqiang] Hubei Univ, Fac Resources & Environm, Wuhan, Hubei, Peoples R China; [Li, Zhongqiang] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: The National Natural Science Foundation of China [30740067, 30870260]; Postdoctoral Science Foundation of China [20070420180]; Natural Science Foundation of Hubei Province [2007ABA147]; Hubei Provincial Department of Education [D20081006]
类目[WOS]: Ecology
研究领域[WOS]: Environmental Sciences & Ecology
摘要: In order to examine the role of environmental factors affecting foliar morphology, we performed a case study of leaf morphological variation of Ranunculus natans found in the arid zone of northwest China. We found that foliar phenotypic variation differed significantly between populations. We described substantial positive correlations between altitude and leaf area (LA) as well as leaf perimeter (LP), and also between longitude and number of teeth, along with dissection index (DI). The pH, conductivity, and salinity of the environment caused a significant decrease in both LA and LP. Ranked in terms of their impacts on leaf morphology, the six selected factors were: altitude > pH > conductivity > salinity > longitude > latitude. We found that foliar morphological variations are functional responses to water-quantity factors (e.g., altitude and longitude at regional scales) and water-availability relation factors (e.g., pH, conductivity, and salinity at local scales), rather than to temperature-relation factors (latitude). Therefore, altitude and longitude, along with pH, conductivity, and salinity, are the main factors that significantly influence foliar morphology in the arid zone of China. We found that main factors played major roles in plant phenotypic plasticity in a complex ecosystem, although different combinations and interactions of environmental and geographical factors in each local environment may obscure the general trends in trait changes along environmental gradients.
英文摘要: In order to examine the role of environmental factors affecting foliar morphology, we performed a case study of leaf morphological variation of Ranunculus natans found in the arid zone of northwest China. We found that foliar phenotypic variation differed significantly between populations. We described substantial positive correlations between altitude and leaf area (LA) as well as leaf perimeter (LP), and also between longitude and number of teeth, along with dissection index (DI). The pH, conductivity, and salinity of the environment caused a significant decrease in both LA and LP. Ranked in terms of their impacts on leaf morphology, the six selected factors were: altitude > pH > conductivity > salinity > longitude > latitude. We found that foliar morphological variations are functional responses to water-quantity factors (e.g., altitude and longitude at regional scales) and water-availability relation factors (e.g., pH, conductivity, and salinity at local scales), rather than to temperature-relation factors (latitude). Therefore, altitude and longitude, along with pH, conductivity, and salinity, are the main factors that significantly influence foliar morphology in the arid zone of China. We found that main factors played major roles in plant phenotypic plasticity in a complex ecosystem, although different combinations and interactions of environmental and geographical factors in each local environment may obscure the general trends in trait changes along environmental gradients.
关键词[WOS]: AQUATIC PLANT ; ECOTYPIC DIFFERENTIATION ; PHENOTYPIC PLASTICITY ; LOCAL ADAPTATION ; POPULATIONS ; ANATOMY ; HETEROGENEITY ; TEMPERATURE ; PHYSIOLOGY ; GRADIENTS
语种: 英语
WOS记录号: WOS:000270837500017
ISSN号: 0912-3814
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7548
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Wuhan Univ, State Field Stn Freshwater Ecosyst Liangzi Lake, Wuhan 430072, Peoples R China
2.Hubei Univ, Fac Resources & Environm, Wuhan, Hubei, Peoples R China
3.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Donghu Expt Stn Lake Ecosyst, Wuhan, Peoples R China

Recommended Citation:
Li, Zhongqiang; Yu, Dan.Factors affecting leaf morphology: a case study of Ranunculus natans C. A. Mey. (Ranunculaceae) in the arid zone of northwest China,ECOLOGICAL RESEARCH,2009,24(6):1323-1333
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