Uptake and bioconcentration of atrazine by selected freshwater algae

Atrazine bioconcentration and uptake were determined for eight freshwater green algae and diatoms. Atrazine uptake was extremely rapid in all species examined, with nearly 90% of total uptake occurring within the first hour of exposure. Within each division, different species had different bioconcen...

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Bibliographic Details
Published in:Environmental toxicology and chemistry 1998-06, Vol.17 (6), p.1085-1090
Main Authors: Tang, J. (University of Nebraska, NE.), Hoagland, K.D, Siegfried, B.D
Format: Article
Language:English
Subjects:
ALGAE
Animal, plant and microbial ecology
Applied ecology
Atrazine
Bioconcentration
Biological and medical sciences
BIOLOGICAL DIFFERENCES
Cell size
DIFERENCIAS BIOLOGICAS
DIFFERENCE BIOLOGIQUE
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on plants and fungi
Freshwater algae
Fundamental and applied biological sciences. Psychology
HERBICIDAS
HERBICIDE
HERBICIDES
SPECIES DIFFERENCES
TOXICOLOGIA
TOXICOLOGIE
TOXICOLOGY
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Summary:Atrazine bioconcentration and uptake were determined for eight freshwater green algae and diatoms. Atrazine uptake was extremely rapid in all species examined, with nearly 90% of total uptake occurring within the first hour of exposure. Within each division, different species had different bioconcentration capacities, although the accumulation of atrazine was consistently higher in green algae (5.43-12.73 ng/mg) than in diatoms (0.33-1.69 ng/mg). Atrazine concentrations in the algal cells were much higher than in the medium, although the total amount of atrazine taken up by algae was small relative to the total atrazine in solution (1-3%). The ability of algal cells to accumulate atrazine was highly correlated with algal cell biovolume and surface area, and a strong relationship was observed between sensitivity to atrazine and bioconcentration, cell biovolume, and surface area. In general, higher bioconcentration factors were associated with increased atrazine sensitivity
ISSN:0730-7268
1552-8618
DOI:10.1002/etc.5620170614