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Influence of phosphate on the response of periphyton to atrazine exposure.
Arch Environ Contam Toxicol. 2007 Jan; 52(1):32-7.AE

Abstract

After indications from the literature that nutrient concentrations may modify the toxicity of herbicides to natural periphyton communities, this study aims to provide experimental proof for atrazine. In this microcosm experiment, phosphate (P) addition did not ameliorate atrazine toxicity to periphyton. Three weeks of P addition did not increase atrazine tolerance (measured as EC50 in acute toxicity tests), whereas exposure to atrazine under conditions that were either P-limited or non-P-limited clearly reduced the development of algal biomass. Long-term exposure to atrazine induced tolerance of the community to the herbicide, and this was not influenced by P addition. Tolerance induction in this microcosm experiment has been compared with previously published field data from the same area of study and indicates that tolerance induction by atrazine may take place under atrazine exposure in streams as well as in microcosms.

Authors+Show Affiliations

Guasch H
Institute of Aquatic Ecology, Faculty of Sciences, University Girona (UdG), Campus de Montilivi, 17071, Girona, Spain. helena.guasch@udg.es
Lehmann V
No affiliation info available
van Beusekom B
No affiliation info available
Sabater S
No affiliation info available
Admiraal W
No affiliation info available

MeSH

AtrazineBiomassChlorophyllChlorophyll ADose-Response Relationship, DrugEukaryotaHerbicidesPhosphatesToxicity TestsWater Pollutants, Chemical

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17061052

Citation

Guasch, H, et al. "Influence of Phosphate On the Response of Periphyton to Atrazine Exposure." Archives of Environmental Contamination and Toxicology, vol. 52, no. 1, 2007, pp. 32-7.
Guasch H, Lehmann V, van Beusekom B, et al. Influence of phosphate on the response of periphyton to atrazine exposure. Arch Environ Contam Toxicol. 2007;52(1):32-7.
Guasch, H., Lehmann, V., van Beusekom, B., Sabater, S., & Admiraal, W. (2007). Influence of phosphate on the response of periphyton to atrazine exposure. Archives of Environmental Contamination and Toxicology, 52(1), 32-7.
Guasch H, et al. Influence of Phosphate On the Response of Periphyton to Atrazine Exposure. Arch Environ Contam Toxicol. 2007;52(1):32-7. PubMed PMID: 17061052.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of phosphate on the response of periphyton to atrazine exposure. AU - Guasch,H, AU - Lehmann,V, AU - van Beusekom,B, AU - Sabater,S, AU - Admiraal,W, Y1 - 2006/10/23/ PY - 2005/07/23/received PY - 2006/06/17/accepted PY - 2006/10/25/pubmed PY - 2007/2/13/medline PY - 2006/10/25/entrez SP - 32 EP - 7 JF - Archives of environmental contamination and toxicology JO - Arch Environ Contam Toxicol VL - 52 IS - 1 N2 - After indications from the literature that nutrient concentrations may modify the toxicity of herbicides to natural periphyton communities, this study aims to provide experimental proof for atrazine. In this microcosm experiment, phosphate (P) addition did not ameliorate atrazine toxicity to periphyton. Three weeks of P addition did not increase atrazine tolerance (measured as EC50 in acute toxicity tests), whereas exposure to atrazine under conditions that were either P-limited or non-P-limited clearly reduced the development of algal biomass. Long-term exposure to atrazine induced tolerance of the community to the herbicide, and this was not influenced by P addition. Tolerance induction in this microcosm experiment has been compared with previously published field data from the same area of study and indicates that tolerance induction by atrazine may take place under atrazine exposure in streams as well as in microcosms. SN - 0090-4341 UR - https://www.unboundmedicine.com/medline/citation/17061052/Influence_of_phosphate_on_the_response_of_periphyton_to_atrazine_exposure_ L2 - https://dx.doi.org/10.1007/s00244-005-0186-5 DB - PRIME DP - Unbound Medicine ER -