Linking leaf hydraulic properties, photosynthetic rates, and leaf lifespan in xerophytic species: a test of global hypotheses
文献类型：期刊论文
| 作者 | Li, Fanglan2; McCulloh, Katherine A.1; Sun, Sujing2; Bao, Weikai2 |
| 刊名 | AMERICAN JOURNAL OF BOTANY
 |
| 出版日期 | 2018-11-01 |
| 卷号 | 105期号:11页码:1858-1868 |
| 关键词 | anatomical traits functional strategies leaf economic spectrum stomatal conductance vein length per area xylem |
| ISSN号 | 0002-9122 |
| DOI | 10.1002/ajb2.1185 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Premise of the Study Methods Leaf venation and its hierarchal traits are crucial to the hydraulic and mechanical properties of leaves, reflecting plant life-history strategies. However, there is an extremely limited understanding of how variation in leaf hydraulics affects the leaf economic spectrum (LES) or whether venation correlates more strongly with hydraulic conductance or biomechanical support among hierarchal orders. We examined correlations of leaf hydraulics, indicated by vein density, conduit diameter, and stomatal density with light-saturated photosynthetic rates, leaf lifespan (LLS), and leaf morpho-anatomical traits of 39 xerophytic species grown in a common garden. Key Results Conclusions We found positive relationships between light-saturated, area-based photosynthetic rates, and vein densities, regardless of vein orders. Densities of leaf veins had positive correlations with stomatal density. We also found positive relationships between LLS and vein densities. Leaf area was negatively correlated with the density of major veins but not with minor veins. Most anatomical traits were not related to vein densities. We developed a network diagram of the correlations among leaf hydraulics and leaf economics, which suggests functional trade-offs between hydraulic costs and lifetime carbon gain. Leaf hydraulics efficiency and carbon assimilation were coupled across species. Vein construction costs directly coordinated with the LLS. Our findings indicate that hierarchal orders of leaf veins did not differ in the strength of their correlations between hydraulic conductance and biomechanical support. These findings clarify how leaf hydraulics contributes to the LES and provide new insight into life-history strategies of these xerophytic species. |
| URL标识 | 查看原文 |
| WOS关键词 | ECONOMIC SPECTRUM ; VENATION NETWORKS ; WATER-STRESS ; USE EFFICIENCY ; VEIN TRAITS ; EVOLUTION ; LEAVES ; TREES ; ARCHITECTURE ; DIFFERENTIATION |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000450329600009 |
| 出版者 | WILEY |
| 源URL | [http://210.75.237.14/handle/351003/30114]  |
| 专题 | 生物多样性与生态系统服务领域_生态研究 生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室 |
| 作者单位 | 1.Univ Wisconsin, Dept Bot, Madison, WI 53706 USA 2.Chinese Acad Sci, Chengdu Inst Biol, Key Lab Mt Ecol Restorat & Bioresource Utilizat, Chengdu 610041, Sichuan, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Li, Fanglan,McCulloh, Katherine A.,Sun, Sujing,et al. Linking leaf hydraulic properties, photosynthetic rates, and leaf lifespan in xerophytic species: a test of global hypotheses[J]. AMERICAN JOURNAL OF BOTANY,2018,105(11):1858-1868. |
| APA | Li, Fanglan,McCulloh, Katherine A.,Sun, Sujing,&Bao, Weikai.(2018).Linking leaf hydraulic properties, photosynthetic rates, and leaf lifespan in xerophytic species: a test of global hypotheses.AMERICAN JOURNAL OF BOTANY,105(11),1858-1868. |
| MLA | Li, Fanglan,et al."Linking leaf hydraulic properties, photosynthetic rates, and leaf lifespan in xerophytic species: a test of global hypotheses".AMERICAN JOURNAL OF BOTANY 105.11(2018):1858-1868. |
入库方式： OAI收割
来源：成都生物研究所
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