Climate Change Data Portal
| DOI | 10.1093/jxb/erad474 |
| Leaf hydraulic properties of Antarctic plants: effects of growth temperature and its coordination with photosynthesis | |
| Saez, Patricia L.; Vallejos, Valentina; Sancho-Knapik, Domingo; Cavieres, Lohengrin A.; Ramirez, Constanza F.; Bravo, Leon A.; Javier Peguero-Pina, Jose; Gil-Pelegrin, Eustaquio; Galmes, Jeroni | |
| 发表日期 | 2024 |
| ISSN | 0022-0957 |
| EISSN | 1460-2431 |
| 起始页码 | 75 |
| 结束页码 | 7 |
| 卷号 | 75期号:7 |
| 英文摘要 | One of the well-documented effects of regional warming in Antarctica is the impact on flora. Warmer conditions modify several leaf anatomical traits of Antarctic vascular plants, increasing photosynthesis and growth. Given that CO2 and water vapor partially share their diffusion pathways through the leaf, changes in leaf anatomy could also affect the hydraulic traits of Antarctic plants. We evaluated the effects of growth temperature on several anatomical and hydraulic parameters of Antarctic plants and assessed the trait co-variation between these parameters and photosynthetic performance. Warmer conditions promoted an increase in leaf and whole plant hydraulic conductivity, correlating with adjustments in carbon assimilation. These adjustments were consistent with changes in leaf vasculature, where Antarctic species displayed different strategies. At higher temperature, Colobanthus quitensis decreased the number of leaf xylem vessels, but increased their diameter. In contrast, in Deschampsia antarctica the diameter did not change, but the number of vessels increased. Despite this contrasting behavior, some traits such as a small leaf diameter of vessels and a high cell wall rigidity were maintained in both species, suggesting a water-conservation response associated with the ability of Antarctic plants to cope with harsh environments. Antarctic vascular plants modify leaf anatomical traits with increasing growth temperature, enabling coordinated increases in leaf hydraulic conductivity and photosynthetic capacity. |
| 英文关键词 | Antarctic plants; climate change; growth temperature; hydraulic; photosynthesis; warming |
| 语种 | 英语 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| WOS记录号 | WOS:001137156100001 |
| 来源期刊 | JOURNAL OF EXPERIMENTAL BOTANY
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/296400 |
| 作者单位 | Universidad de La Frontera; Universidad de Concepcion; Universidad de Concepcion; Universitat de les Illes Balears |
| 推荐引用方式 GB/T 7714 | Saez, Patricia L.,Vallejos, Valentina,Sancho-Knapik, Domingo,et al. Leaf hydraulic properties of Antarctic plants: effects of growth temperature and its coordination with photosynthesis[J],2024,75(7). |
| APA | Saez, Patricia L..,Vallejos, Valentina.,Sancho-Knapik, Domingo.,Cavieres, Lohengrin A..,Ramirez, Constanza F..,...&Galmes, Jeroni.(2024).Leaf hydraulic properties of Antarctic plants: effects of growth temperature and its coordination with photosynthesis.JOURNAL OF EXPERIMENTAL BOTANY,75(7). |
| MLA | Saez, Patricia L.,et al."Leaf hydraulic properties of Antarctic plants: effects of growth temperature and its coordination with photosynthesis".JOURNAL OF EXPERIMENTAL BOTANY 75.7(2024). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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