Accumulation of arsenic and zinc in the rhizosphere of wetland plants

Iron oxyhydrides precipitate in the rhizosphere of wetland plants by oxidation, and are called ironplaque. Zinc and arsenic content of the soil in contact with the rhizosphere and in bulk soil near two species of wetland plants, Halimione portulacoides and Spartina anglica, were determined. Iron con...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 1995-07, Vol.55 (1), p.154-161
Main Authors: Otte, M.L. (University College Dublin, Belfield, Dublin, Ireland.), Kearns, C.C, Doyle, M.O
Format: Article
Language:English
Subjects:
Analysis of Variance
Animal, plant and microbial ecology
Applied ecology
ARSENIC
Arsenic - analysis
Arsenic - metabolism
ARSENICO
Biological and medical sciences
CHEMICAL COMPOSITION
CINC
COMPOSICION QUIMICA
COMPOSITION CHIMIQUE
Ecotoxicology, biological effects of pollution
FER
Freshwater
Fundamental and applied biological sciences. Psychology
GRAMINEAE
Halimione portulacoides
HALOFITAS
HALOPHYTE
HALOPHYTES
HIERRO
IRLANDA DEL NORTE
IRLANDE DU NORD
IRON
Iron - analysis
Iron - metabolism
ironplaque
MARSHLAND SOILS
NORTHERN IRELAND
Oxidation-Reduction
Pilot Projects
Plant Roots - metabolism
Rhizobium - metabolism
RHIZOSPHERE
RIZOSFERA
SALT MARSH SOILS
Soil - analysis
Soil - standards
Soil Microbiology
SOL DE MARECAGE
SPARTINA ANGLICA
SUELO PANTANOSO (TRANSITORIO)
Terrestrial environment, soil, air
ZINC
Zinc - analysis
Zinc - metabolism
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Summary:Iron oxyhydrides precipitate in the rhizosphere of wetland plants by oxidation, and are called ironplaque. Zinc and arsenic content of the soil in contact with the rhizosphere and in bulk soil near two species of wetland plants, Halimione portulacoides and Spartina anglica, were determined. Iron concentrations of the soils were not different for each species, but the iron content of the rhizosphere soil was lower than that of the bulk soil. Zinc content of rhizosphere soil was greater than that of bulk soil for both species. Arsenic concentrations were higher in soil near H. portulacoides Rhizosphere soil had more arsenic than bulk soil for both species, however. Iron and zinc concentrations in the ironplaque were similar for both species. Arsenic content of ironplaque was greater in S. anglica.
ISSN:0007-4861
1432-0800
DOI:10.1007/bf00212403