Effects of soil moisture on ecophysiological characteristics of Adiantum reniforme var. sinensis, an endangered fern endemic to the Three Gorges region in China
文献类型:期刊论文
作者 | Jiang, Ming Xi; Liao, Jian Xiong; Huang, Han Dong |
刊名 | AMERICAN FERN JOURNAL
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出版日期 | 2008 |
卷号 | 98期号:1页码:26-32 |
关键词 | Adiantum reniforme var. sinensis ecophysiological characteristics fern soil moisture |
ISSN号 | 0002-8444 |
英文摘要 | The effects of soil moisture (80%, 60% and 40% water holding capacity) on dry matter production and allocation, leaf morphological and physiological characteristics were examined in Adiantum reniforme var. sinensis, an endangered fern endemic to the Three Gorges region in southwest China. Drought stress decreased leaf growth and photosynthetic capacity, and hence reduced total mass, specific leaf area (SLA) and leaf area ratio (LAR). Dry matter allocation into the root fraction, however, increased with decreasing soil moisture. Leaf relative water content (RWC) decreased as soil water depletion, but the differences were insignificant. Such results might be the result of a physiological balance between the demand for water by the leaves and the water uptake from soil by the roots. The decrease in stomatal conductance (g(s)) effectively controlled water loss and maintained intrinsic water use efficiency (WUEi) under drought stress. The increase in proline content might contribute to osmotic adjustment, and hence sustained cytomembrane integrality in structure and function under drought conditions. |
WOS研究方向 | Plant Sciences |
语种 | 英语 |
WOS记录号 | WOS:000254960400003 |
出版者 | AMER FERN SOC INC |
源URL | [http://202.127.146.157/handle/2RYDP1HH/1112] ![]() |
专题 | 中国科学院武汉植物园 |
通讯作者 | Jiang, Ming Xi |
作者单位 | Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China |
推荐引用方式 GB/T 7714 | Jiang, Ming Xi,Liao, Jian Xiong,Huang, Han Dong. Effects of soil moisture on ecophysiological characteristics of Adiantum reniforme var. sinensis, an endangered fern endemic to the Three Gorges region in China[J]. AMERICAN FERN JOURNAL,2008,98(1):26-32. |
APA | Jiang, Ming Xi,Liao, Jian Xiong,&Huang, Han Dong.(2008).Effects of soil moisture on ecophysiological characteristics of Adiantum reniforme var. sinensis, an endangered fern endemic to the Three Gorges region in China.AMERICAN FERN JOURNAL,98(1),26-32. |
MLA | Jiang, Ming Xi,et al."Effects of soil moisture on ecophysiological characteristics of Adiantum reniforme var. sinensis, an endangered fern endemic to the Three Gorges region in China".AMERICAN FERN JOURNAL 98.1(2008):26-32. |
入库方式: OAI收割
来源:武汉植物园
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