Marine pollution bulletin · 2024
Biochemical and molecular biomarkers and their association with anthropogenic chemicals in wintering Manx shearwaters (Puffinus puffinus).
СтатьяНазвание и аннотация: Перевод в очереди
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Serafini Patricia P, Righetti Bárbara P H, Vanstreels Ralph E T, Bugoni Leandro, Piazza Clei E, Lima Daína, Mattos Jacó J, Kolesnikovas Cristiane K M, Pereira Alice, Maraschin Marcelo, Piccinin Isadora, Guilford Tim, Gallo Luciana, Uhart Marcela M, Lourenço Rafael A, Bainy Afonso C D, Lüchmann Karim H
Аннотация
Anthropogenic pollution poses a threat to marine conservation by causing chronic toxic effects. Seabirds have contact throughout their lives with pollutants like plastic, metals, polychlorinated biphenyls (PCBs), and organochlorine pesticides such as hexachlorocyclohexanes (HCHs). We assessed 155 Manx shearwaters (Puffinus puffinus) stranded along the Brazilian coast, analyzing associations between organic pollutants, plastic ingestion, biomarkers (transcript levels of aryl hydrocarbon receptor, cytochrome P450-1A-5 [CYP1A5], UDP-glucuronosyl-transferase [UGT1], estrogen receptor alpha-1 [ESR1], and heat shock protein-70 genes) and enzymes activity (ethoxy-resorufin O-deethylase and glutathione S-transferase [GST]). Plastic debris was found in 29 % of the birds. The transcription of UGT1 and CYP1A5 was significantly associated with hexachlorobenzene (HCB) and PCBs levels. ESR1 was associated with HCB and Mirex, and GST was associated with Drins and Mirex. While organic pollutants affected shearwaters more than plastic ingestion, reducing plastic availability remains relevant as xenobiotics are also potentially adsorbed onto plastics.