Uptake, photosynthetic characteristics and membrane lipid peroxidation levels in the lichen photobiont Trebouxia erici exposed to copper and cadmium

Martin Bačkor; Peter Váczi; Miloš Barták; Jana Buďová; Alexander Dzubaj

doi:10.1639/0007-2745(2007)110[100:UPCAML]2.0.CO;2

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1 March 2007 Uptake, photosynthetic characteristics and membrane lipid peroxidation levels in the lichen photobiont Trebouxia erici exposed to copper and cadmium

Martin Bačkor, Peter Váczi, Miloš Barták, Jana Buďová, Alexander Dzubaj

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The Bryologist, 110(1):100-107 (2007). https://doi.org/10.1639/0007-2745(2007)110[100:UPCAML]2.0.CO;2

Abstract

The influence of increased copper and cadmium concentrations on membrane lipid peroxidation and photosynthetic characteristics of the lichen photobiont Trebouxia erici was assessed. Intracellular copper and cadmium uptake increased due to increased metal availability in the 5 mM HEPES buffer for 24 h. Assimilation pigments, chlorophyll a fluorescence, malondialdehyde (MDA) content and photosynthetic oxygen evolution rate (OER) were sensitive to the presence of redox-reactive metal Cu² in short-term experiments. Cd² decreased F_V/F_M values indicating damage to PSII and decrease of OER. However, assimilation pigments and MDA content were not altered significantly.

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Martin Bačkor, Peter Váczi, Miloš Barták, Jana Buďová, and Alexander Dzubaj "Uptake, photosynthetic characteristics and membrane lipid peroxidation levels in the lichen photobiont Trebouxia erici exposed to copper and cadmium," The Bryologist 110(1), 100-107, (1 March 2007). https://doi.org/10.1639/0007-2745(2007)110[100:UPCAML]2.0.CO;2

Received: 17 January 2006; Accepted: 1 July 2006; Published: 1 March 2007

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