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Toxicity and Mechanisms of Action of Polycyclic Aromatic Hydrocarbon Pollution in Red Algae ( Gracilaria corticata ) from the Northern Coast of the Oman Sea
Author(s) -
Sinaei Mahmood,
Loghmani Mehran
Publication year - 2019
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.4507
Subject(s) - polycyclic aromatic hydrocarbon , algae , pollution , toxicity , environmental chemistry , gracilaria , biology , environmental science , chemistry , ecology , organic chemistry
The activities of selected biomarkers including 7‐ethoxycoumarin‐O‐deethylase (ECOD) and glutathione S ‐transferase (GST) were measured in the red algae ( Gracilaria corticata ) obtained from the Oman Sea. Chemical analyses were used to assess the polycyclic aromatic hydrocarbons (PAHs) in the red algae. Total PAH concentrations in the red algae ranged from 3.61 to 8.14 ng g –1 dry weight. Mean GST and ECOD activity also varied from 8.87 to 15.32 nmol/mg protein/min and from 0.31 to 1.02 pmol/min/mg protein, respectively. Significant correlations were found between the total PAH levels and the selected biomarkers ( p < 0.01). The results showed that ECOD and GST enzymes reacted to PAHs in phase I and II detoxification mechanisms of red algae ( G. corticata ), which extend the use of these biomarkers for investigation of the biological effects of PAH pollution as well as determination of pollution bioavailability. Environ Toxicol Chem 2019;38:1947–1953. © 2019 SETAC.