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Authors Capo, X; Tejada, S; Ferriol, P; Pinya, S; Mateu-Vicens, G; Montero-Gonzalez, I; Box, A; Sureda, A
Author Full Name Capo, X.; Tejada, S.; Ferriol, P.; Pinya, S.; Mateu-Vicens, G.; Montero-Gonzalez, I.; Box, A.; Sureda, A.
Title Hypersaline water from desalinization plants causes oxidative damage in Posidonia oceanica meadows
Source SCIENCE OF THE TOTAL ENVIRONMENT
Language English
Document Type Article
Author Keywords Mediterranean Sea; Salinity; Posidonia oceanica; Seagrass; Oxidative stress; Antioxidants
Keywords Plus GLUTATHIONE S-TRANSFERASES; SUPEROXIDE-DISMUTASE; DESALINATION BRINE; SALINITY STRESS; SEAGRASS; RESPONSES; TOLERANCE; CATALASE; ENZYMES; GROWTH
Abstract Posidonia oceanica is an endemic marine phanerogam of the Mediterranean Sea for that is very sensitive to the environmental changes, especially those related to human activities. The aim of this study was to evaluate the oxidative stress status of P. oceanica meadows exposed to spillage of hypersaline water from a desalination station by using biomarkers. Leaf samples of P. oceanica were obtained from 4 different points exposed to different levels of salinity water. Samples from the area with the highest salinity conditions were 75% shorter than the samples from the control area. Exposure to high salinity induced an increase in the levels of oxidative stress markers (malondialdehyde (MDA) and protein carbonyls). Interestingly, in the area with the highest salinity the activities of glutathione peroxidase, glutathione reductase and glutathione-s-transferase were significantly induced respect to the other studies areas, while catalase (CAT) and superoxide dismutase (SOD) activities were lower. In addition, salinity induced a progressive increase in non-enzymatic antioxidants (polyphenols and glutathione) and in total antioxidant capacity reaching the highest concentrations in samples directly affected by the saline discharge. In conclusion chronic exposure to high salinity induced an increase in total antioxidant capacity in P. oceanica. However, this increase was not enough to protect the plant against oxidative stress as it is evidenced by the raise in oxidative stress markers. The obtained data suggest that high salinity conditions deactivated CAT and SOD antioxidant enzymes and caused an increase in non-enzymatic antioxidants (polyphenols and glutathione) and in glutathione-related enzymes.
Author Address [Capo, X.; Sureda, A.] Univ Balearic Isl, Res Grp Community Nutr & Oxidat Stress NUCOX, E-07122 Palma De Mallorca, Balearic Island, Spain; [Capo, X.] Ctr Oceanog Baleares, Inst Espanol Oceanog, Muelle Poniente S-N, Palma De Mallorca 07015, Balearic Island, Spain; [Tejada, S.; Sureda, A.] CIBEROBN Physiopathol Obes & Nutr, E-07122 Palma De Mallorca, Balearic Island, Spain; [Tejada, S.] Univ Balearic Isl, Lab Neurophysiol, Dept Biol, Palma De Mallorca, Balearic Island, Spain; [Ferriol, P.; Pinya, S.; Mateu-Vicens, G.] Univ Balearic Isl, Biol Dept, Interdisciplinary Ecol Grp, E-07122 Palma De Mallorca, Spain; [Pinya, S.; Mateu-Vicens, G.] Museu Balear Ciencies Nat, Ctra Palma Port Soller Km 30, Soller 07100, Balearic Island, Spain; [Mateu-Vicens, G.] Univ Balearic Isl, Biol Dept, Lab Zool, E-07122 Palma De Mallorca, Spain; [Montero-Gonzalez, I.] Univ Alicante, Dept Biotechnol, E-03690 Alicante, Spain; [Box, A.] Consell Insular Eivissa, Dep Agr Ramaderia Pesca Caca & Cooperacio Municip, Ave Espanya 49, Ibiza 07800, Balearic Island, Spain
Reprint Address Capo, X (corresponding author), Univ Illes Balears, Res Grp Community Nutr & Oxidat Stress NUCOX, Crtra Valldemossa,Km 7-5, E-07122 Palma De Mallorca, Illes Balears, Spain.
E-mail Address xavier.capo@uib.es
ResearcherID Number Tejada, Silvia/L-7297-2014; Ferriol, Pere/G-1207-2014; Mateu-Vicens, Guillem/A-5362-2012
ORCID Number Tejada, Silvia/0000-0002-7498-6090; Ferriol, Pere/0000-0002-6847-8460; Pinya Fernandez, Samuel/0000-0001-5872-5440; Capo Fiol, Xavier/0000-0002-3499-5494; Mateu-Vicens, Guillem/0000-0003-3271-254X
Funding Agency and Grant Number IBEROSTAR project
Funding Text This study has been carried out thanks to the support of the IBEROSTAR project
Publisher ELSEVIER
Publisher City AMSTERDAM
Publisher Address RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS
ISSN 0048-9697
29-Character Source Abbreviation SCI TOTAL ENVIRON
ISO Source Abbreviation Sci. Total Environ.
Publication Date SEP 20
Year Published 2020
Volume 736
Article Number 139601
Digital Object Identifier (DOI) 10.1016/j.scitotenv.2020.139601
Page Count 7
Web of Science Category Environmental Sciences
Subject Category Environmental Sciences & Ecology
Document Delivery Number MA7IL
Unique Article Identifier WOS:000542086100008
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