Distributions of arsenic and essential elements in pinna of arsenic hyperaccumulator Pteris vittata L.

作     者：CHEN Tongbin, HUANG Zechun, HUANG Yuying & LEI Mei Laboratory of Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China Laboratory of Synchrotron Radiation, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China 

作者机构：Laboratory of Environmental Remediation Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China Laboratory of Synchrotron Radiation Institute of High Energy Physics Chinese Academy of Sciences Beijing100039 China 

出 版 物：《Science China(Life Sciences)》 (中国科学（生命科学英文版）)

年 卷 期：2005年第48卷第1期

页      面：18-24页

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 

主　　题：hyperaccumulator, Chinese brake (Pteris vittata L.), arsenic, element, distribution, SRXRF. 

摘      要：The distributions of arsenic and 6 essential elements in the pinna of As hyperaccumulator, Pteris vittata L., were studied using synchrotron radiation X-ray fluorescence (SRXRF). Significant correlation between the distribution and mobility of the elements revealed that SRXRF study on the elemental distribution was feasible to inspect the transportations of elements in plants. The distribution of As in the pinna showed that As had great abilities to be transported in xylem vessels and from xylem to mesophyll. The distribution of K, one of the most mobile elements in plants, was similar to that of As, whereas the distributions of Fe and Ca with less mobility in plants were almost opposite to that of As in the pinna.