Two Na^＋ and Cl^- Hyperaccumulators of the Chenopodiaceae  

作　　者：Ke-FuZHAO HaiFAN JieSONG Ming-XiaSUN Bao-ZengWANG Sheng-QiangZHANG I.A.UNGAR 

机构地区：[1]InstituteofPlantStress,ShandongNormalUniversity,Jinan250014,China [2]DepartmentofEnvironmentandPlantEcology,OhioUniversity,Athens,Ohio45701,USA

出　　处：《Journal of Integrative Plant Biology》2005年第3期311-318,共8页植物学报（英文版）

基　　金：国家重点基础研究发展计划(973计划)，the Foundation of Excellent Young/Scientists of Shandong Province

摘　　要：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.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.

关 键 词：APOPLAST Cl- CYTOPLASM HYPERACCUMULATOR Kalidium folium (Pall.) Moq Na+ Suaeda salsa (L.) Pall VACUOLE 

分 类 号：Q949.745.1[生物学—植物学]