Sensitivity of seed germination to temperature of a relict tree species from different origins along latitudinal and altitudinal gradients: implications for response to climate change
文献类型：期刊论文
| 作者 | Wu, Hao1,2; Wang, Shitong1,2; Wei, Xinzeng1; Jiang, Mingxi1 |
| 刊名 | TREES-STRUCTURE AND FUNCTION
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 33期号:5页码:1435-1445 |
| 关键词 | Altitude Climate change Latitude Seed germination Temperature |
| ISSN号 | 0931-1890 |
| DOI | 10.1007/s00468-019-01871-0 |
| 英文摘要 | Key messageSeeds of a relict tree species collected from high latitudes were more sensitive to temperature and warming could accelerate germination.AbstractSeed germination is a crucial process in a plant life cycle and is highly vulnerable to environmental change. Studying among-population variation in seed germination in response to environmental and geographic gradients is an important tool, allowing us to understand how plants adapt to different environmental conditions and to predict population dynamics under future climate change. Here, we collected seeds of Euptelea pleiospermum, a relict broad-leaved tree species, from six provenances along latitudinal and altitudinal gradients across its distribution in China. We investigated variation in seed germination percentage and germination timing of seeds from these different origins (low, middle, and high latitudes/altitudes) at three incubation temperatures (15 degrees C, 20 degrees C and 25 degrees C). The key results were as follows: first, seeds collected from high latitudes were more sensitive to temperature and was likely to benefit from the higher incubation temperature with increasing germination percentage and shorter germination timing; second, for seeds across latitudes, germination percentage of central populations was lower than that of marginal populations; seed origin and its interaction with temperature were the major drivers of germination percentage variation; germination timing was significantly affected by incubation temperature, and warming could accelerate germination; third, for seeds across altitudes, both germination percentage and germination timing were not significantly affected by seed origin, incubation temperature, or their interaction. Our results indicate that climate warming may influence the population dynamics of relict tree species by altering their seed germination patterns, especially for the leading-edge populations along latitudinal gradient. It is vital to take inter-population variation across species' geographic distribution into account when estimating the impact of environmental changes on plant species' distribution and population persistence. |
| 资助项目 | National Natural Science Foundation of China[31570528] ; National Natural Science Foundation of China[31770572] ; National Key Research and Development Program of China[2016YFC0503105] ; State Key Laboratory of Vegetation and Environmental Change[LVEC-2016kfxx] |
| WOS研究方向 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000491468100014 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/14829]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Wei, Xinzeng |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Hao,Wang, Shitong,Wei, Xinzeng,et al. Sensitivity of seed germination to temperature of a relict tree species from different origins along latitudinal and altitudinal gradients: implications for response to climate change[J]. TREES-STRUCTURE AND FUNCTION,2019,33(5):1435-1445. |
| APA | Wu, Hao,Wang, Shitong,Wei, Xinzeng,&Jiang, Mingxi.(2019).Sensitivity of seed germination to temperature of a relict tree species from different origins along latitudinal and altitudinal gradients: implications for response to climate change.TREES-STRUCTURE AND FUNCTION,33(5),1435-1445. |
| MLA | Wu, Hao,et al."Sensitivity of seed germination to temperature of a relict tree species from different origins along latitudinal and altitudinal gradients: implications for response to climate change".TREES-STRUCTURE AND FUNCTION 33.5(2019):1435-1445. |
入库方式： OAI收割
来源：武汉植物园
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