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Tradeoff between Stem Hydraulic Efficiency and Mechanical Strength Affects Leaf-Stem Allometry in 28 Ficus Tree Species
Fan, Ze-Xin1; Sterck, Frank2; Zhang, Shi-Bao; Fu, Pei-Li1; Hao, Guang-You4
2017-09-20
Source PublicationFRONTIERS IN PLANT SCIENCE
ISSN1664-462X
Volume8Pages:1619
AbstractLeaf-stem allometry is an important spectrum that linked to biomass allocation and life history strategy in plants, although the determinants and evolutionary significance of leaf-stem allometry remain poorly understood. Leaf and stem architectures - including stem area/mass, petiole area/mass, lamina area/mass, leaf number, specific leaf area (LA), and mass-based leafing intensity (LI) - were measured on the current-year branches for 28 Ficus species growing in a common garden in SW China. The leaf anatomical traits, stem wood density (WD), and stem anatomical and mechanical properties of these species were also measured. We analyzed leaf-stem allometric relationships and their associations with stem hydraulic ad mechanical properties using species-level data and phylogenetically independent contrasts. We found isometric relationship between leaf lamina area/mass and stem area/mass, suggesting that the biomass allocation to leaf was independent to stem size. However, allometric relationship between LA/mass and petiole mass was found, indicating large leaves invest a higher fractional of biomass in petiole than small ones. LI, i.e., leaf numbers per unit of stem mass, was negatively related with leaf and stem size. Species with larger terminal branches tend to have larger vessels and theoretical hydraulic conductivity, but lower WD and mechanical strength. The size of leaf lamina, petiole, and stem was correlated positively with stem theoretical hydraulic conductivity, but negatively with stem WD and mechanical strength. Our results suggest that leaf-stem allometry in Ficus species was shaped by the trade-off between stem hydraulic efficiency and mechanical stability, supporting a functional interpretation of the relationship between leaf and stem dimensions.
KeywordBiomass Allocation Ficus Theoretical Hydraulic Conductivity Leaf-stem Relationship Mechanical Strength Trade-off Wood Density
Subject AreaPlant Sciences
DOI10.3389/fpls.2017.01619
Indexed BySCI
Language英语
WOS IDWOS:000411188000002
Citation statistics
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/54879
Collection资源植物与生物技术所级重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla, Peoples R China
2.Wageningen Univ, Dept Forestry, Forest Ecol & Forest Management Grp, Wageningen, Netherlands
3.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming, Yunnan, Peoples R China
4.Chinese Acad Sci, Inst Appl Ecol, Key Lab Forest Ecol & Management, Shenyang, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Fan, Ze-Xin,Sterck, Frank,Zhang, Shi-Bao,et al. Tradeoff between Stem Hydraulic Efficiency and Mechanical Strength Affects Leaf-Stem Allometry in 28 Ficus Tree Species[J]. FRONTIERS IN PLANT SCIENCE,2017,8:1619.
APA Fan, Ze-Xin,Sterck, Frank,Zhang, Shi-Bao,Fu, Pei-Li,&Hao, Guang-You.(2017).Tradeoff between Stem Hydraulic Efficiency and Mechanical Strength Affects Leaf-Stem Allometry in 28 Ficus Tree Species.FRONTIERS IN PLANT SCIENCE,8,1619.
MLA Fan, Ze-Xin,et al."Tradeoff between Stem Hydraulic Efficiency and Mechanical Strength Affects Leaf-Stem Allometry in 28 Ficus Tree Species".FRONTIERS IN PLANT SCIENCE 8(2017):1619.
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