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Atmosphere 2018, 9(7), 284; https://doi.org/10.3390/atmos9070284

Levels of Antioxidant Compound Glutathione in Moss from Industrial Areas

1
Ecology Unit, Department of Functional Biology, Universidade de Santiago de Compostela, Fac. Bioloxía, Lope Gómez de Marzoa s/n, Santiago de Compostela, 15702 A Coruña, Spain
2
Department of Botany, Bareilly College, Bareilly, U.P. 243001, India
*
Author to whom correspondence should be addressed.
Received: 11 May 2018 / Revised: 16 July 2018 / Accepted: 18 July 2018 / Published: 19 July 2018
(This article belongs to the Special Issue Biomonitoring of Atmospheric Pollution)
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Abstract

Plants possess a wide range of cellular mechanisms that help them tolerate potentially toxic substances. Several studies that were carried out under laboratory conditions have demonstrated that the antioxidant compound glutathione plays a role in enabling mosses to tolerate high levels of heavy metals without toxic effects. However, until now, the antioxidant levels have not been studied in mosses under field conditions. In this study, we aimed to clarify the antioxidant concentrations of glutathione in the terrestrial moss Pseudoscleropodium purum growing in industrial environments characterised by high atmospheric levels of Cd, Ni, and Pb, and to evaluate the potential use of the compound as a biomarker. The results indicated the existence of a glutathione threshold response, which was significantly correlated with the metal toxicity and which may be influenced by metal bioavailability. Although future studies are needed to strengthen the findings, the present study suggests that total concentration of glutathione in P. purum could therefore be used as a biomarker in air pollution biomonitoring studies, provided that metal bioavailability is taken into account. View Full-Text
Keywords: biomarkers; heavy metals; glutathione; Pseudocleropodium purum; tolerance biomarkers; heavy metals; glutathione; Pseudocleropodium purum; tolerance
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Varela, Z.; Debén, S.; Saxena, D.K.; Aboal, J.R.; Fernández, J.Á. Levels of Antioxidant Compound Glutathione in Moss from Industrial Areas. Atmosphere 2018, 9, 284.

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