2018 journal article
Assessment of atrazine toxicity to the estuarine phytoplankter, Dunaliella tertiolecta (Chlorophyta), under varying nutrient conditions
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 25(12), 11409–11423.
author keywords: Atrazine; Ecotoxicity; Dunaliella; Estuarine; Modified algal bioassay; Nitrogen; Phosphorus; Phytoplankton
MeSH headings : Atrazine / toxicity; Chlorophyceae / drug effects; Chlorophyta / drug effects; Herbicides / toxicity; Phytoplankton / drug effects; Phytoplankton / growth & development; Water Pollutants, Chemical / toxicity
TL;DR:
Atrazine sensitivity in nutrient-replete media was higher than expected, 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.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
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.