| Leaf Photosynthetic Rate of Tropical Ferns Is Evolutionarily Linked to Water Transport Capacity | |
Zhang, Shi-Bao1,2 ; Sun, Mei2,3; Cao, Kun-Fang2; Hu, Hong1; Zhang, Jiao-Lin2
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| 通讯作者 | Zhang,JL (reprint author),Chinese Acad Sci,Key Lab Trop Forest Ecol,Xishuangbanna Trop Bot Garden,Mengla,Yunnan,Peoples R China. ; zjl@xtbg.org.cn |
| 2014-01-09 | |
| 发表期刊 | PLOS ONE
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| ISSN | 1932-6203 |
| 卷号 | 9期号:1页码:e84682 |
| 摘要 | Ferns usually have relatively lower photosynthetic potential than angiosperms. However, it is unclear whether low photosynthetic potential of ferns is linked to leaf water supply. We hypothesized that there is an evolutionary association of leaf water transport capacity with photosynthesis and stomatal density in ferns. In the present study, a series of functional traits relating to leaf anatomy, hydraulics and physiology were assessed in 19 terrestrial and 11 epiphytic ferns in a common garden, and analyzed by a comparative phylogenetics method. Compared with epiphytic ferns, terrestrial ferns had higher vein density (D-vein), stomatal density (SD), stomatal conductance (g(s)), and photosynthetic capacity (A(max)), but lower values for lower epidermal thickness (LET) and leaf thickness (LT). Across species, all traits varied significantly, but only stomatal length (SL) showed strong phylogenetic conservatism. A(max) was positively correlated with D-vein and g(s) with and without phylogenetic corrections. SD correlated positively with A(max), D-vein and g(s), with the correlation between SD and Dvein being significant after phylogenetic correction. Leaf water content showed significant correlations with LET, LT, and mesophyll thickness. Our results provide evidence that A(max) of the studied ferns is linked to leaf water transport capacity, and there was an evolutionary association between water supply and demand in ferns. These findings add new insights into the evolutionary correlations among traits involving carbon and water economy in ferns. |
| 关键词 | Genome Size Stomatal Conductance Hydraulic Capacity Vascular Plants Cell-size Density Diversification Venation Angiosperms Forest |
| 学科领域 | Multidisciplinary Sciences |
| DOI | 10.1371/journal.pone.0084682 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000329866300036 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kib.ac.cn/handle/151853/17976 |
| 专题 | 资源植物与生物技术所级重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming, Yunnan, Peoples R China 2.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla, Yunnan, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Shi-Bao,Sun, Mei,Cao, Kun-Fang,et al. Leaf Photosynthetic Rate of Tropical Ferns Is Evolutionarily Linked to Water Transport Capacity[J]. PLOS ONE,2014,9(1):e84682. |
| APA | Zhang, Shi-Bao,Sun, Mei,Cao, Kun-Fang,Hu, Hong,&Zhang, Jiao-Lin.(2014).Leaf Photosynthetic Rate of Tropical Ferns Is Evolutionarily Linked to Water Transport Capacity.PLOS ONE,9(1),e84682. |
| MLA | Zhang, Shi-Bao,et al."Leaf Photosynthetic Rate of Tropical Ferns Is Evolutionarily Linked to Water Transport Capacity".PLOS ONE 9.1(2014):e84682. |
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