The combined effect of anthracene and cadmium on photosynthetic activity of three Desmodesmus (Chlorophyta) species

Ecotoxicology and Environmental Safety
Wojciech Pokora, Zbigniew Tukaj

Abstract

Individual toxicity of heavy metals (HM) and polycyclic aromatic hydrocarbons (PAH) to plants living in water bodies is well-documented. In view of frequent joint occurrence of these compounds in the environment, plants are subjected to damage from their combined action. Cadmium and anthracene can generate production of reactive oxygen species (ROS). We have recently detected elevated activity of Fe- and Mn-SOD isoforms, indicating chloroplast and mitochondrion as the main sites of combined toxicity of HM and PAH. In the present paper, short-term (1-24 h) experiments on the mechanism of combined toxicity of anthracene and cadmium to the photosynthesis of three Desmodesmus species are reported. Inhibition, stimulation or no effect on the oxygen evolution was observed following the treatment with the contaminants when applied either separately or jointly. The response pattern was both strongly species- and time-dependent. In contrast, the photosynthetic activity of cells, expressed by chlorophyll fluorescence parameters, was substantially unaffected, since no effect or, in several cases, a slight stimulation of PS II quantum efficiency (Phi PS II) were noted. A characteristic relationship between the SOD activity and the qN value...Continue Reading

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Citations

Aug 4, 2010·Archives of Environmental Contamination and Toxicology·Agnieszka Baścik-RemisiewiczZbigniew Tukaj
Aug 21, 2013·Ecotoxicology and Environmental Safety·Daoyong ZhangXiangliang Pan
Feb 2, 2013·Canadian Journal of Physiology and Pharmacology·Judith T CirulisGregory M Ross
Sep 8, 2012·Journal of Hazardous Materials·Xuezhu ZhuFanxiang Kong
Feb 7, 2012·Plant Physiology and Biochemistry : PPB·Alicja Piotrowska-NiczyporukBeata Godlewska-Żyłkiewicz
Nov 1, 2013·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Ying YinYuan Y Sun
Nov 1, 2016·Environmental Science and Pollution Research International·Ben Ali RihabOthmane Ali
May 28, 2019·Environmental Monitoring and Assessment·Ivonne C Calderón-DelgadoYohana M Velasco-Santamaría
Oct 28, 2019·Scientific Reports·Sreejith Kottuparambil, Jihae Park
May 22, 2020·Bulletin of Environmental Contamination and Toxicology·Thien Q NguyenR J Neil Emery

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