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Accumulation and Speciation of Arsenic in Pteris vittata Gametophytes and Sporophytes: Effects of Calcium and Phosphorus

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Pedosphere 2019年第4期29卷 540-544页

作者： YANG Guangmei WANG Yuanguo ZHU Lingjia HAN Yonghe Peter CHRISTIE Jiangsu Vocational College of Agriculture and Forestry State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing University Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil ScienceChinese Academy of Sciences Tongren Polytechnic College

Dear Editor, Environmental arsenic (As) contamination of both soil and water systems is a worldwide problem, and As can enter the human food chain through contaminated agricultural products and drinking water and cont... 详细信息

关键词： Accumulation Speciation Pteris vittata Gametophytes

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Effect of phosphorus on arsenic accumulation in As-hyperaccumulator Pteris vittata L. and its implication

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Chinese Science Bulletin 2002年第22期47卷 1876-1879页

作者： Tongbin Chen Zhilian Fan Mei Lei Zechun Huang Chaoyang Wei Chinese Acad Sci Inst Geog Sci & Nat Resources Res Lab Environm Remediat Beijing 100101 Peoples R China

Pot experiment was conducted to understand the effect of phosphorus on arsenic accumulation in As-hyperaccumulator Chinese brake (Pteris vittata L.). It is shown that arsenic concentrations in the fronds and rhizoids, the arsenic bioaccumulation factor, and the total arsenic in the fronds were not influenced significantly under low levels of phosphorus (≤400 mg/kg) and increased sharply under high levels of phosphorus (>400 mg/ kg). The discovery implies that the efficiency of arsenic removal in phytoremedia-tion using the hyperaccumulating plant can be greatly elevated by the phosphorus addition at high rates. The interaction between the accumulation of phosphorus and that of arsenic in plant was stimulated mutually. The result represents that Chinese brake is a good material for plant physiologist to conduct comparative and mechanism studies on the uptake behaviors of phosphorus and arsenic, and phosphorus is also a potential accelerator for phytoremediation of arsenic-contaminated soils.

关键词： Chinese brake (Pteris vittata L.) hyperaccumulator arsenic phosphorus accumulation.

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

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Science China(Life Sciences) 2005年第1期48卷 18-24页

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 Laboratory of Environmental Remediation Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 Chin

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.

关键词： hyperaccumulator, Chinese brake (Pteris vittata L.), arsenic, element, distribution, SRXRF.

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