Salt glands of recretohalophyte Tamarix under salinity: Their evolution and adaptation
Abstract Here, we studied the evolution of salt glands in 11 species of Tamarix and determined their role in adaptation to saline environments by measuring the effect of NaCl on plant growth and salt gland characteristics. Cluster analysis divided Tamarix species into three types (types I–III) accor...
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| Format: | Article |
| Language: | English |
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Wiley
2020-09-01
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| Series: | Ecology and Evolution |
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| Online Access: | https://doi.org/10.1002/ece3.6625 |
| _version_ | 1818351549132308480 |
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| author | Xiaocen Wei Xin Yan Zhen Yang Guoliang Han Lei Wang Fang Yuan Baoshan Wang |
| author_facet | Xiaocen Wei Xin Yan Zhen Yang Guoliang Han Lei Wang Fang Yuan Baoshan Wang |
| author_sort | Xiaocen Wei |
| collection | DOAJ |
| description | Abstract Here, we studied the evolution of salt glands in 11 species of Tamarix and determined their role in adaptation to saline environments by measuring the effect of NaCl on plant growth and salt gland characteristics. Cluster analysis divided Tamarix species into three types (types I–III) according to salt‐gland characteristics. A phylogenetic tree based on ITS sequences indicated an evolutionary relationship consistent with the geographical distribution of Tamarix. We measured growth under different NaCl conditions (0, 100, 200, and 300 mM) for 40 days in three species (T. gallica, T. ramosissima, and T. laxa) representing the three Tamarix types. With increasing NaCl concentration, the biomass of all species was significantly reduced, especially that of T. gallica. Salt secretion ability and salt‐gland density showed similar trends in three types. The order of salt tolerance was type I > type II > type III. We conclude that during Tamarix adaptation to salinity, salt‐gland evolution followed two directions: one increasing salt‐gland density, and the other increasing salt secretion rate per salt‐gland. This study provides a basis for potential mechanisms of recretohalophyte adaptation to salinity. |
| first_indexed | 2024-12-13T18:39:30Z |
| format | Article |
| id | doaj.art-99bebe2921804ecc8b6de41c2463b692 |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-12-13T18:39:30Z |
| publishDate | 2020-09-01 |
| publisher | Wiley |
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| series | Ecology and Evolution |
| spelling | doaj.art-99bebe2921804ecc8b6de41c2463b6922022-12-21T23:35:16ZengWileyEcology and Evolution2045-77582020-09-0110179384939510.1002/ece3.6625Salt glands of recretohalophyte Tamarix under salinity: Their evolution and adaptationXiaocen Wei0Xin Yan1Zhen Yang2Guoliang Han3Lei Wang4Fang Yuan5Baoshan Wang6Shandong Provincial Key Laboratory of Plant Stress College of Life Sciences Shandong Normal University Ji'nan ChinaShandong Provincial Key Laboratory of Plant Stress College of Life Sciences Shandong Normal University Ji'nan ChinaShandong Provincial Key Laboratory of Microbial Engineering School of Biologic Engineering Qilu University of Technology (Shandong Academy of Sciences) Ji'nan ChinaShandong Provincial Key Laboratory of Plant Stress College of Life Sciences Shandong Normal University Ji'nan ChinaShandong Provincial Key Laboratory of Plant Stress College of Life Sciences Shandong Normal University Ji'nan ChinaShandong Provincial Key Laboratory of Plant Stress College of Life Sciences Shandong Normal University Ji'nan ChinaShandong Provincial Key Laboratory of Plant Stress College of Life Sciences Shandong Normal University Ji'nan ChinaAbstract Here, we studied the evolution of salt glands in 11 species of Tamarix and determined their role in adaptation to saline environments by measuring the effect of NaCl on plant growth and salt gland characteristics. Cluster analysis divided Tamarix species into three types (types I–III) according to salt‐gland characteristics. A phylogenetic tree based on ITS sequences indicated an evolutionary relationship consistent with the geographical distribution of Tamarix. We measured growth under different NaCl conditions (0, 100, 200, and 300 mM) for 40 days in three species (T. gallica, T. ramosissima, and T. laxa) representing the three Tamarix types. With increasing NaCl concentration, the biomass of all species was significantly reduced, especially that of T. gallica. Salt secretion ability and salt‐gland density showed similar trends in three types. The order of salt tolerance was type I > type II > type III. We conclude that during Tamarix adaptation to salinity, salt‐gland evolution followed two directions: one increasing salt‐gland density, and the other increasing salt secretion rate per salt‐gland. This study provides a basis for potential mechanisms of recretohalophyte adaptation to salinity.https://doi.org/10.1002/ece3.6625evolutionphylogenetic analysissalt glandssalt toleranceTamarix |
| spellingShingle | Xiaocen Wei Xin Yan Zhen Yang Guoliang Han Lei Wang Fang Yuan Baoshan Wang Salt glands of recretohalophyte Tamarix under salinity: Their evolution and adaptation Ecology and Evolution evolution phylogenetic analysis salt glands salt tolerance Tamarix |
| title | Salt glands of recretohalophyte Tamarix under salinity: Their evolution and adaptation |
| title_full | Salt glands of recretohalophyte Tamarix under salinity: Their evolution and adaptation |
| title_fullStr | Salt glands of recretohalophyte Tamarix under salinity: Their evolution and adaptation |
| title_full_unstemmed | Salt glands of recretohalophyte Tamarix under salinity: Their evolution and adaptation |
| title_short | Salt glands of recretohalophyte Tamarix under salinity: Their evolution and adaptation |
| title_sort | salt glands of recretohalophyte tamarix under salinity their evolution and adaptation |
| topic | evolution phylogenetic analysis salt glands salt tolerance Tamarix |
| url | https://doi.org/10.1002/ece3.6625 |
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