Cadmium accumulation responses in Hylotelephium spectabile: The role of photosynthetic characteristics under different nitrogen, moisture, and light conditions
文献类型：期刊论文
| 作者 | Guo, Junmei3; Chen, Tongbin2,3; Zheng, Guodi2,3; Yang, Junxing2,3; Qian, Tianwei; Liu, Xiaona; Meng, Xiaofei2,3; Li, Yufeng2,3 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2023-04-01 |
| 卷号 | 319 |
| ISSN号 | 1879-1298 |
| 关键词 | Phytoremediation Cd-contaminated soil Hylotelephium spectabile Environmental regulation Photosynthetic characteristics |
| DOI | 10.1016/j.chemosphere.2023.138019 |
| 文献子类 | Article |
| 英文摘要 | The influence of environmental factors on Cd accumulation by Hylotelephium spectabile and its physiological mechanisms are unclear. A field trial was conducted to investigate the effects of nitrogen, soil moisture, and light regulation on plant growth, Cd absorption and translocation, and the photosynthetic characteristics of two H. spectabile populations (LN with high Cd accumulation capacity and HB1 with relatively low Cd accumulation capacity). The results showed that Cd accumulation in LN was 59.6% higher than that in HB1 which may partly be explained by the inherent high transpiration rate of LN, especially at the terminal stage. In addition, the photosynthetic rate of LN responded more positively to nitrogen than HB1, which further amplified its advan-tages on plant growth and Cd accumulation. Moderate drought significantly stimulated root growth of LN, indicating that LN possesses stronger resistance to drought. Shade inhibited Cd distribution, rather than directly affecting Cd concentrations in H. spectabile. The combined stress of shade and drought had a synergistic effect on Cd translocation in H. spectabile. Moreover, LN achieved 17.3%similar to 444.5% higher transpiration levels than HB1 under environmental stress, which ensured a more efficient Cd transport capacity of LN. Therefore, the inves-tigation of photosynthetic characteristics further revealed the physiological mechanism by which LN accumu-lated Cd superior to HB1 under environmental stress and responded more positively to nitrogen nutrition. |
| WOS关键词 | LEAF GAS-EXCHANGE ; DROUGHT STRESS ; FLUORESCENCE PARAMETERS ; SOIL ; TRANSPIRATION ; GROWTH ; TRANSLOCATION ; POPULATIONS ; FERTILIZERS ; METABOLISM |
| WOS研究方向 | Environmental Sciences & Ecology |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000929162100001 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/190316]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China 3.Taiyuan Univ Technol, Coll Environm Sci & Engn, Jinzhong 030600, Shanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Junmei,Chen, Tongbin,Zheng, Guodi,et al. Cadmium accumulation responses in Hylotelephium spectabile: The role of photosynthetic characteristics under different nitrogen, moisture, and light conditions[J]. CHEMOSPHERE,2023,319. |
| APA | Guo, Junmei.,Chen, Tongbin.,Zheng, Guodi.,Yang, Junxing.,Qian, Tianwei.,...&Li, Yufeng.(2023).Cadmium accumulation responses in Hylotelephium spectabile: The role of photosynthetic characteristics under different nitrogen, moisture, and light conditions.CHEMOSPHERE,319. |
| MLA | Guo, Junmei,et al."Cadmium accumulation responses in Hylotelephium spectabile: The role of photosynthetic characteristics under different nitrogen, moisture, and light conditions".CHEMOSPHERE 319(2023). |
入库方式： OAI收割
来源：地理科学与资源研究所
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