Total content and chemical speciation of arsenic in the polychaete Sabella spallanzanii

被引：16

作者：

Fattorini, D

Bocchetti, R

Bompadre, S

Regoli, F

机构：

[1] Univ Politecn Marche, Ist Biol & Genet, I-60100 Ancona, Italy

[2] Univ Politecn Marche, Ist Microbiol & Sci Biomed, I-60100 Ancona, Italy

来源：

MARINE ENVIRONMENTAL RESEARCH | 2004年 / 58卷 / 2-5期

关键词：

polychaetes; Sabella spallanzanii; arsenic; chemical speciation; dimethylarsinate;

D O I：

10.1016/j.marenvres.2004.03.102

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An unusual feature has been observed in polychaetes regarding their capacity to accumulate high levels of relatively toxic forms of arsenic in specific tissues. Basal levels of arsenic and distribution of its compounds were investigated in tissues of the Mediterranean polychaete Sabella spallanzanii. Particularly high concentrations were measured in the branchial crown (1036 +/- 136 mug/g d.w.) and chemical speciation revealed that the predominant form was the relatively toxic dimethylarsinate (DMA). These data suggest a potential role of As as antipredatory strategy in polychaetes. (C) 2004 Elsevier Ltd. All rights reserved.

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收藏

页码：839 / 843

页数：5

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