UPTAKE AND BIOCONCENTRATION OF ATRAZINE BY SELECTED FRESHWATER ALGAE

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 bioconcentration capacities, although the accumulation of atrazine was consistently higher in green algae ...

Differential toxicity of atrazine to selected freshwater algae.

Comparative sensitivity of freshwater algae to atrazine.

The kinetics of uptake and recovery of lanthanum using freshwater algae as biosorbents: comparative analysis.

In this study, the adsorption and desorption kinetics of lanthanum (La) on micro algal cells was investigated. The internal transcribed spacer (ITS) and 18S ribosomal RNA gene (rRNA) were used for molecular identification of the species. The algal species were found to have 95-98% identities to Desmodesmus multivariabilis, Scenedesmus acuminutus, Chloroidium saccharophilum and Stichococcus baci...

Removal of triazine herbicides from freshwater systems using photosynthetic microorganisms.

The uptake of the triazine herbicides, atrazine and terbutryn, was determined for two freshwater photosynthetic microorganisms, the green microalga Chlorella vulgaris and the cyanobacterium Synechococcus elongatus. An extremely rapid uptake of both pesticides was recorded, although uptake rate was lower for the cyanobacterium, mainly for atrazine. Other parameters related to the herbicide bioco...