Effects of planting system design on the toxicological sensitivity of Myriophyllum spicatum and Elodea canadensis to atrazine

Chemosphere
Erin B McGregorM L Hanson

Abstract

The triazine herbicide atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-trazine) was selected as a chemical stressor in an investigation of how toxicological responses of individually grown macrophytes reflect those of plants grown in more natural model populations and two-species communities. Phytotoxicity of the compound to Myriophyllumspicatum L. and Elodeacanadensis Michx. was assessed under semi-natural field conditions using 12000l outdoor microcosms. Exposure concentrations of 25, 50, 100, 250microgl(-1) plus controls (n=3) were evaluated, selected to fall within a range of concentrations known to produce a toxic response in the tested macrophytes, and effective concentrations required to cause a decrease in biomass endpoints by 10%, 25%, and 50% were estimated. The sensitivities of aquatic plants to atrazine did not differ substantially between planting systems, and few interactions between the effects of the planting method and atrazine effects on macrophyte biomass were detected using a two-way ANOVA. A lack of significant differences in biomass and relative growth rate measures between plants grown under the various test systems also indicated that interactions between and among species did not influence growth of ...Continue Reading

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Citations

May 15, 2012·Analytical and Bioanalytical Chemistry·Ivo SafarikMirka Safarikova
May 24, 2011·International Journal of Phytoremediation·Pichamon Prasertsup, Naiyanan Ariyakanon
Sep 28, 2010·Environmental Toxicology and Chemistry·Rebecca L Dalton, Céline Boutin
May 6, 2015·Environmental Toxicology and Chemistry·Tatiana A ZotinaAlexander Ya Bolsunovsky
Jan 21, 2014·Bulletin of Environmental Contamination and Toxicology·Qinghai WangBo Xiao
Jan 27, 2015·Environmental Science and Pollution Research International·Qinghai WangBo Xiao
Aug 7, 2009·Environmental Pollution·Stefanie KnauertKatja Knauer
May 16, 2015·International Journal of Phytoremediation·Choochai AnudechakulNaiyanan Ariyakanon
Mar 21, 2017·International Journal of Phytoremediation·Zhao JiangYing Zhang
Apr 18, 2018·Integrated Environmental Assessment and Management·Jeffrey M GiddingsRichard Brain
Dec 12, 2019·Environmental Science and Pollution Research International·Jianan ZhouLu Yang
Jan 26, 2021·Ecotoxicology and Environmental Safety·Ying ZhangZhao Jiang
Jan 21, 2021·Ecotoxicology and Environmental Safety·S JoachimJ M Porcher
Jul 6, 2021·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·Philip N SmithKeith R Solomon

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