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| 论文编号: |
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| 作者: |
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| 作者: |
Wang, S. W.; Xu, F. F.; Guo, L. J.; He, T. T.; Li, X. L.; Yuan, L.; Wang, Q. F.; Liu, H. T*
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| 作者所在部门: |
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| 作者所在部门: |
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| 通讯作者: |
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| 通讯作者: |
Liu, H. T* |
| 刊物名称: |
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| 刊物名称: |
BIOLOGIA PLANTARUM
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| 论文题目: |
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| 论文题目: |
Different responses of the halophyte Carex pumila to salt stress |
| 摘要: |
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| 摘要: |
Salt stress is one of the most important stresses that affect coastal vegetation. A halophyte Carex pumila plays a crucial role in the maintenance of fragile ecosystems in coastal areas. Thus, understanding the mechanism of C. pumila responses to salt stress is a prerequisite for the conservation and utilization of this species. After treatment with 200, 300, 400, 500 mM NaCl for 60 h, C. pumila leaves displayed a decline in the relative water content and an increase in salt injury index. Osmolyte accumulation, as a function of osmotic adjustment, and antioxidant enzyme activities were maintained under salinity, even at a high NaCl concentration. High NaCl concentrations severely affected the photosystem II, the JIP-test indicated a significant decrease in performance indexes and quantum efficiencies and an increase in phenomenological fluxes. Metabolic analyses showed the changes of 39 metabolites, including 16 kinds of organic acids, 9 kinds of amino acids, 9 kinds of sugars. 3 kinds of sugar alcohols, and 2 amines. The identified metabolites were mainly involved in the glycolysis, pentose phosphate pathway, and tricarboxylic acids cycle. |
| 年: |
2020
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| 卷: |
64 |
| 期: |
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| 页: |
519-528 |
| 收录类别: |
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| 影响因子: |
1.601
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