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Assessment of atrazine toxicity to the estuarine phytoplankter, Dunaliella tertiolecta (Chlorophyta), under varying nutrient conditions.
Environ Sci Pollut Res Int. 2018 Apr; 25(12):11409-11423.ES

Abstract

Anthropogenic inputs of chemical environmental contaminants are frequently associated with developing harmful algal blooms, but little is known about how estuarine phytoplankton assemblages respond to multiple, co-occurring chemical stressors in chronically disturbed habitats. The goals of this research were to establish a robust protocol for testing the effects of atrazine on estuarine phytoplankton, and then to use that protocol to compare the effects of atrazine exposure with and without nutrient enrichment on a cosmopolitan estuarine/marine alga, Dunaliella tertiolecta (Chlorophyta). Atrazine sensitivity in nutrient-replete media (96-h growth inhibition [Formula: see text]) was 159.16 μg l-1, but sensitivity was influenced by exposure duration, and inhibitory effects of herbicide on algal growth decreased under imbalanced nutrient regimes and low nitrogen and phosphorus supplies. These findings advance knowledge about how nutrient regimes and herbicides interact to control estuarine phytoplankton population dynamics.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Flood S
Center for Applied Aquatic Ecology, Department of Applied Ecology, North Carolina State University, Raleigh, NC, 27606, USA. Flood.Stacie@epa.gov.
Burkholder J
Center for Applied Aquatic Ecology, Department of Applied Ecology, North Carolina State University, Raleigh, NC, 27606, USA.
Cope G
Department of Applied Ecology, North Carolina State University, Raleigh, NC, 27695, USA.

MeSH

AtrazineChlorophyceaeChlorophytaHerbicidesPhytoplanktonWater Pollutants, Chemical

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29423695

Citation

Flood, Stacie, et al. "Assessment of Atrazine Toxicity to the Estuarine Phytoplankter, Dunaliella Tertiolecta (Chlorophyta), Under Varying Nutrient Conditions." Environmental Science and Pollution Research International, vol. 25, no. 12, 2018, pp. 11409-11423.
Flood S, Burkholder J, Cope G. Assessment of atrazine toxicity to the estuarine phytoplankter, Dunaliella tertiolecta (Chlorophyta), under varying nutrient conditions. Environ Sci Pollut Res Int. 2018;25(12):11409-11423.
Flood, S., Burkholder, J., & Cope, G. (2018). Assessment of atrazine toxicity to the estuarine phytoplankter, Dunaliella tertiolecta (Chlorophyta), under varying nutrient conditions. Environmental Science and Pollution Research International, 25(12), 11409-11423. https://doi.org/10.1007/s11356-018-1310-1
Flood S, Burkholder J, Cope G. Assessment of Atrazine Toxicity to the Estuarine Phytoplankter, Dunaliella Tertiolecta (Chlorophyta), Under Varying Nutrient Conditions. Environ Sci Pollut Res Int. 2018;25(12):11409-11423. PubMed PMID: 29423695.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Assessment of atrazine toxicity to the estuarine phytoplankter, Dunaliella tertiolecta (Chlorophyta), under varying nutrient conditions. AU - Flood,Stacie, AU - Burkholder,JoAnn, AU - Cope,Greg, Y1 - 2018/02/08/ PY - 2017/09/01/received PY - 2018/01/15/accepted PY - 2018/2/10/pubmed PY - 2018/12/12/medline PY - 2018/2/10/entrez KW - Atrazine KW - Dunaliella KW - Ecotoxicity KW - Estuarine KW - Modified algal bioassay KW - Nitrogen KW - Phosphorus KW - Phytoplankton SP - 11409 EP - 11423 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 25 IS - 12 N2 - Anthropogenic inputs of chemical environmental contaminants are frequently associated with developing harmful algal blooms, but little is known about how estuarine phytoplankton assemblages respond to multiple, co-occurring chemical stressors in chronically disturbed habitats. The goals of this research were to establish a robust protocol for testing the effects of atrazine on estuarine phytoplankton, and then to use that protocol to compare the effects of atrazine exposure with and without nutrient enrichment on a cosmopolitan estuarine/marine alga, Dunaliella tertiolecta (Chlorophyta). Atrazine sensitivity in nutrient-replete media (96-h growth inhibition [Formula: see text]) was 159.16 μg l-1, but sensitivity was influenced by exposure duration, and inhibitory effects of herbicide on algal growth decreased under imbalanced nutrient regimes and low nitrogen and phosphorus supplies. These findings advance knowledge about how nutrient regimes and herbicides interact to control estuarine phytoplankton population dynamics. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/29423695/Assessment_of_atrazine_toxicity_to_the_estuarine_phytoplankter_Dunaliella_tertiolecta__Chlorophyta__under_varying_nutrient_conditions_ DB - PRIME DP - Unbound Medicine ER -