As-resistance in laboratory-reared F1, F2 and F3 generation offspring of the earthworm Lumbricus rubellus inhabiting an As-contaminated mine soil

被引：26

作者：

Langdon, C. J. ^{[1
]}

Morgan, A. J. ^{[2
]}

Charnock, J. M. ^{[3
,4
]}

Semple, K. T. ^{[5
]}

Lowe, C. N. ^{[6
]}

机构：

[1] Open Univ N, Gateshead NE8 3DF, England

[2] Cardiff Univ, Cardiff Sch Biosci, Cardiff CF11 3TL, S Glam, Wales

[3] Daresbury Lab, STFC, Warrington WA4 4AD, Cheshire, England

[4] Univ Manchester, Dept Earth Atmospher & Environm Sci, Manchester M13 9PL, Lancs, England

[5] Univ Lancaster, Ctr Environm, Lancaster LA1 4YQ, England

[6] Univ Cent Lancashire, Sch Built & Nat Environm, Preston PR1 2HE, Lancs, England

来源：

ENVIRONMENTAL POLLUTION | 2009年 / 157卷 / 11期

关键词：

Earthworms; Arsenic; Exposure history; Resistance; Ligand-binding; DENDRODRILUS-RUBIDUS; ARSENIC-SPECIATION; HEAVY-METALS; POPULATIONS; CADMIUM; OLIGOCHAETE; COPPER; DETOXIFICATION; ADAPTATION; TOLERANCE;

D O I：

10.1016/j.envpol.2009.05.027

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Previous studies provided no unequivocal evidence demonstrating that field populations of Lumbricus rubellus Hoffmeister (1843), exhibit genetically inherited resistance to As-toxicity. In this study F1, F2 and F3 generation offspring derived from adults inhabiting As-contaminated field soil were resistant when exposed to 2000 mg kg(-1) sodium arsenate. The offspring of uncontaminated adults were not As-resistant. Cocoon viability was 80% for F1 and 82% for F2 offspring from As-contaminated adults and 59% in the F1 control population. High energy synchrotron analysis was used to determine whether ligand complexation of As differed in samples of. resistant mine-site adults, the resistant F1 and F2 offspring of the mine-site earthworms exposed to the LC25 sodium arsenate (700 mg kg(-1)) of the F1 parental generation; and adult L rubellus from an uncontaminated site exposed to LC25 concentrations of sodium arsenate (50 mg kg(-1)). XANES and EXAFS indicated that As was present as a sulfur-coordinated species. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.

引用

页码：3114 / 3119

页数：6

共 40 条

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