Evolution of leaf structure and drought tolerance in species of Californian Ceanothus
文献类型：期刊论文
| 作者 | Fletcher, Leila R.; Cui, Hongxia2; Callahan, Hilary1; Scoffoni, Christine3; John, Grace P.; Bartlett, Megan K.; Burge, Dylan O.; Sack, Lawren |
| 刊名 | AMERICAN JOURNAL OF BOTANY
 |
| 出版日期 | 2018 |
| 卷号 | 105期号:10页码:1672-1687 |
| 关键词 | California lilac chaparral leaf anatomy leaf traits leaf venation Mediterranean climate phylogenetic analysis Rhamnaceae stomatal crypts trait evolution |
| ISSN号 | 0002-9122 |
| DOI | 10.1002/ajb2.1164 |
| 文献子类 | Article |
| 英文摘要 | Premise of the Study Methods Studies across diverse species have established theory for the contribution of leaf traits to plant drought tolerance. For example, species in more arid climates tend to have smaller leaves of higher vein density, higher leaf mass per area, and more negative osmotic potential at turgor loss point (pi(TLP)). However, few studies have tested these associations for species within a given lineage that have diversified across an aridity gradient. We analyzed the anatomy and physiology of 10 Ceanothus (Rhamnaceae) species grown in a common garden for variation between and within wet and dry subgenera (Ceanothus and Cerastes, respectively) and analyzed a database for 35 species for leaf size and leaf mass per area (LMA). We used a phylogenetic generalized least squares approach to test hypothesized relationships among traits, and of traits with climatic aridity in the native range. We also tested for allometric relationships among anatomical traits. Key Results Conclusions Leaf form, anatomy, and drought tolerance varied strongly among species within and between subgenera. Cerastes species had specialized anatomy including hypodermis and encrypted stomata that may confer superior water storage and retention. The osmotic potentials at turgor loss point (pi(TLP)) and full turgor (pi(o)) showed evolutionary correlations with the aridity index (AI) and precipitation of the 10 species' native distributions, and LMA with potential evapotranspiration for the 35 species in the larger database. We found an allometric correlation between upper and lower epidermal cell wall thicknesses, but other anatomical traits diversified independently. Leaf traits and drought tolerance evolved within and across lineages of Ceanothus consistently with climatic distributions. The pi(TLP) has signal to indicate the evolution of drought tolerance within small clades. |
| 学科主题 | Plant Sciences |
| 出版地 | HOBOKEN |
| 电子版国际标准刊号 | 1537-2197 |
| WOS关键词 | TURGOR LOSS POINT ; WATER RELATIONS ; HYDRAULIC VULNERABILITY ; FUNCTIONAL TRAITS ; SOIL-MOISTURE ; LOW-RAINFALL ; CELL-SIZE ; DRY MASS ; AREA ; CLIMATE |
| 语种 | 英语 |
| WOS记录号 | WOS:000449490000007 |
| 出版者 | WILEY |
| 资助机构 | microMORPH Training Grant RCN, Barnard College Biology Department Grants ; National Science FoundationNational Science Foundation (NSF) [IOS-1457279] ; UCLA Department of Ecology and Evolutionary Biology ; Division Of Integrative Organismal SystemsNational Science Foundation (NSF)NSF - Directorate for Biological Sciences (BIO) [1355041] Funding Source: National Science Foundation |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/20653]  |
| 专题 | 中科院北方资源植物重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China 2.Univ Calif Los Angeles, Dept Ecol & Evolutionary Biol, Los Angeles, CA 90095 USA 3.Columbia Univ, Dept Biol, Barnard Coll, New York, NY 10027 USA 4.Calif State Univ Los Angeles, Dept Biol Sci, Los Angeles, CA 90032 USA |
| 推荐引用方式 GB/T 7714 | Fletcher, Leila R.,Cui, Hongxia,Callahan, Hilary,et al. Evolution of leaf structure and drought tolerance in species of Californian Ceanothus[J]. AMERICAN JOURNAL OF BOTANY,2018,105(10):1672-1687. |
| APA | Fletcher, Leila R..,Cui, Hongxia.,Callahan, Hilary.,Scoffoni, Christine.,John, Grace P..,...&Sack, Lawren.(2018).Evolution of leaf structure and drought tolerance in species of Californian Ceanothus.AMERICAN JOURNAL OF BOTANY,105(10),1672-1687. |
| MLA | Fletcher, Leila R.,et al."Evolution of leaf structure and drought tolerance in species of Californian Ceanothus".AMERICAN JOURNAL OF BOTANY 105.10(2018):1672-1687. |
入库方式： OAI收割
来源：植物研究所
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