Arsenic resistance and cycling in earthworms residing at a former gold mine in Canada

被引：19

作者：

Button, Mark ^{[1
]}

Koch, Iris ^{[1
]}

Reimer, Kenneth J. ^{[1
]}

机构：

[1] Royal Mil Coll Canada, Environm Sci Grp, Kingston, ON K7K 7B4, Canada

来源：

ENVIRONMENTAL POLLUTION | 2012年 / 169卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Arsenic; Adaptation; Resistance; Earthworm; Terrestrial; COMET ASSAY; LUMBRICUS-RUBELLUS; DNA-DAMAGE; SPECIATION; GENOTOXICITY; TOXICITY; POPULATION; BEHAVIOR;

D O I：

10.1016/j.envpol.2012.04.031

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Earthworms (Lumbricus castaneous and Dendrodrilus rubidus), their host soils and leaf litter were collected from a former gold mine with widespread arsenic (As) contamination in Nova Scotia, Canada and determined for total and speciated As. Resistance to As toxicity was investigated by measurement of DNA damage in exposed earthworm populations using the comet assay. Arsenobetaine (AB) was observed at low concentration in the earthworms but not in the host soil or leaf litter. Several different organoarsenic species were observed in the leaf litter and only inorganic As was found in the host soils. The results suggest that 1) adaptation to As toxicity in earthworms is widespread and not particular to a single species, 2) AB originates in the earthworm and not the consumed soil or leaf litter and 3) as previously hypothesised (Button et al., 2010), biotransformation of inorganic As to AB is not likely involved in the adaptation. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：74 / 80

页数：7

共 40 条

[1] Metal bioaccumulation and cellular fractionation in an epigeic earthworm (Lumbricus rubellus): The interactive influences of population exposure histories, site-specific geochemistry and mitochondrial genotype [J].

Andre, Jane ;

Sturzenbaum, Stephen R. ;

Kille, Peter ;

Morgan, A. John ;

Hodson, Mark E. .

SOIL BIOLOGY & BIOCHEMISTRY, 2010, 42 (09) :1566-1573

[2] Earthworm feeding activity and development of the humus profile [J].

Bernier, N .

BIOLOGY AND FERTILITY OF SOILS, 1998, 26 (03) :215-223

[3] Arsenic - a review. - Part 1: Occurrence, toxicity, speciation, mobility [J].

Bissen, M ;

Frimmel, FH .

ACTA HYDROCHIMICA ET HYDROBIOLOGICA, 2003, 31 (01) :9-18

[4]

Button M., 2008, IR08050 BRIT GEOL SU

[5] Arsenic speciation in field-collected and laboratory-exposed earthworms Lumbricus terrestris [J].

Button, Mark ;

Moriarty, Maeve M. ;

Watts, Michael J. ;

Zhang, Jun ;

Koch, Iris ;

Reimer, Kenneth J. .

CHEMOSPHERE, 2011, 85 (08) :1277-1283

[6] DNA damage in earthworms from highly contaminated soils: Assessing resistance to arsenic toxicity by use of the Comet assay [J].

Button, Mark ;

Jenkin, Gawen R. T. ;

Bowman, Karen J. ;

Harrington, Chris F. ;

Brewer, Tim S. ;

Jones, George D. D. ;

Watts, Michael J. .

MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS, 2010, 696 (02) :95-100

[7] Arsenic biotransformation in earthworms from contaminated soils [J].

Button, Mark ;

Jenkin, Gawen R. T. ;

Harrington, Chris F. ;

Watts, Michael J. .

JOURNAL OF ENVIRONMENTAL MONITORING, 2009, 11 (08) :1484-1491

[8]

Campbell PGC, 2006, ISS ENVIR SCI TECHN, V22, P102

[9] The comet assay: topical issues [J].

Collins, Andrew R. ;

Oscoz, Amaia Azqueta ;

Brunborg, Gunnar ;

Gaivao, Isabel ;

Giovannelli, Lisa ;

Kruszewski, Marcin ;

Smith, Catherine C. ;

Stetina, Rudolf .

MUTAGENESIS, 2008, 23 (03) :143-151

[10] The comet assay for DNA damage and repair - Principles, applications, and limitations [J].

Collins, AR .

MOLECULAR BIOTECHNOLOGY, 2004, 26 (03) :249-261

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