Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/nph.14737 |
Stem photosynthesis and hydraulics are coordinated in desert plant species | |
Avila-Lovera, Eleinis1,2; Zerpa, Antonio J.1; Santiago, Louis S.1,3 | |
通讯作者 | Avila-Lovera, Eleinis |
来源期刊 | NEW PHYTOLOGIST
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ISSN | 0028-646X |
EISSN | 1469-8137 |
出版年 | 2017 |
卷号 | 216期号:4页码:1119-1129 |
英文摘要 | Coordination between stem photosynthesis and hydraulics in green-stemmed desert plants is important for understanding the physiology of stem photosynthesis and possible drought responses. Plants with photosynthetic stems have extra carbon gain that can help cope with the detrimental effects of drought. We studied photosynthetic, hydraulic and functional traits of 11 plant species with photosynthetic stems from three California desert locations. We compared relationships among traits between wet and dry seasons to test the effect of seasonality on these relationships. Finally, we compared stem trait relationships with analogous relationships in the leaf economics spectrum. We found that photosynthetic and hydraulic traits are coordinated in photosynthetic stems. The slope or intercept of all trait relationships was mediated by seasonality. The relationship between mass-based stem photosynthetic CO2 assimilation rate (A(mass)) and specific stem area (SSA; stem surface area to dry mass ratio) was statistically indistinguishable from the leaf economics spectrum. Our results indicate that photosynthetic stems behave like leaves in the coordination of multiple traits related to carbon gain, water movement and water loss. Because of the similarity of the stem A(mass)-SSA relationship to the leaf A(mass)-specific leaf area relationship, we suggest the existence of a photosynthetic stem economic spectrum. |
英文关键词 | chlorophyll fluorescence cuticular conductance evaporative flux method gas exchange hydraulic conductance specific bark area specific stem area wood density |
类型 | Article |
语种 | 英语 |
国家 | USA ; Panama |
收录类别 | SCI-E |
WOS记录号 | WOS:000414639800018 |
WOS关键词 | WATER PERMEABILITY ; GAS-EXCHANGE ; CO2 FIXATION ; STOMATAL CONDUCTANCE ; ERIOGONUM-INFLATUM ; SEASONAL PATTERNS ; WOOD DENSITY ; CARBON GAIN ; LEAF ; FOREST |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/201255 |
作者单位 | 1.Univ Calif Riverside, Dept Bot & Plant Sci, 2150 Batchelor Hall, Riverside, CA 92521 USA; 2.Univ Calif Riverside, Dept Biol, Evolut Ecol & Organismal Biol Grad Program, Riverside, CA 92521 USA; 3.Smithsonian Trop Res Inst, Apartado 0843-03092, Balboa, Ancon, Panama |
推荐引用方式 GB/T 7714 | Avila-Lovera, Eleinis,Zerpa, Antonio J.,Santiago, Louis S.. Stem photosynthesis and hydraulics are coordinated in desert plant species[J],2017,216(4):1119-1129. |
APA | Avila-Lovera, Eleinis,Zerpa, Antonio J.,&Santiago, Louis S..(2017).Stem photosynthesis and hydraulics are coordinated in desert plant species.NEW PHYTOLOGIST,216(4),1119-1129. |
MLA | Avila-Lovera, Eleinis,et al."Stem photosynthesis and hydraulics are coordinated in desert plant species".NEW PHYTOLOGIST 216.4(2017):1119-1129. |
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