| Two Na^＋ and Cl^- Hyperaccumulators of the Chenopodiaceae |
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| 作者姓名： | Ke-FuZHAO HaiFAN JieSONG Ming-XiaSUN Bao-ZengWANG Sheng-QiangZHANG I.A.UNGAR |
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| 作者单位： | [1]InstituteofPlantStress,ShandongNormalUniversity,Jinan250014,China [2]DepartmentofEnvironmentandPlantEcology,OhioUniversity,Athens,Ohio45701,USA |
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| 摘 要： | The authors found five sodium (Na^ ) and chloride (Cl^-) hyperaccumulating halophytes in the Temperate Desert of Xinjiang, China and studied two of them (Suaeda salsa (L.) Pall. and Kalidium folium (Pall.) Moq.). K. folium and S. salsa had a NaCl content of 32.1% and 29.8%, respectively, on a dry weight basis. X-ray microanalysis of the Na in the vacuole, apoplasts and cytoplasm of the two plants indicated a ratio of 7.3:5.6:1.0 in K. folium and 7.3:6.6:1.0 in S. salsa. These data show that K. folium and S. salsa both have a high Na and Cl^- accumulating capacity, which is related to high activity of tonoplast H^ -ATPase and H^ -PPase.
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| 关 键 词： | 藜科植物 超量聚积植物 钠离子 氯离子 非原质体 细胞质 液泡 |
Two Na+ and Cl− Hyperaccumulators of the Chenopodiaceae |
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| Authors: | Ke-Fu ZHAO Hai FAN Jie SONG Ming-Xia SUN Bao-Zeng WANG Sheng-Qiang ZHANG I A UNGAR |
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| Institution: | Institute of Plant Stress, Shandong Normal University, Jinan 250014, China;; Department of Environment and Plant Ecology, Ohio University, Athens, Ohio 45701, USA |
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| Abstract: | Abstract: The authors found five sodium (Na+) and chloride (Cl-.) hyperaccumulating halophytes in the Temperate Desert of Xinjiang, China and studied two of them ( Suaeda salsa (L.) Pall. and Kalidium folium (Pall.) Moq.). K. folium and S. salsa had a NaCl content of 32.1% and 29.8%, respectively, on a dry weight basis. X-ray microanalysis of the Na+ in the vacuole, apoplasts and cytoplasm of the two plants indicated a ratio of 7.3:5.6:1.0 in K. folium and 7.3:6.6:1.0 in S. salsa. These data show that K. folium and S. salsa both have a high Na+ and Cl- accumulating capacity, which is related to high activity of tonoplast H+-ATPase and H+-PPase.
(Managing editor: Ping HE) |
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| Keywords: | apoplast Cl- cytoplasm hyperaccumulator Kalidium folium (Pall ) Moq Na+ Suaeda salsa (L ) Pall vacuole |
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