Impacts of ambient salinity and copper on brown algae: 2. Interactive effects on phenolic pool and assessment of metal binding capacity of phlorotannin

Aquatic Toxicology
Solène Connan, Dagmar B Stengel

Abstract

The aim of this study was to establish in laboratory experiments a quantitative link between phenolic pool (production, composition and exudation) in Ascophyllum nodosum and Fucus vesiculosus and their potential to bind metals. Additionally, the copper binding capacity of purified phlorotannin was investigated. A reduction in salinity decreased total phenolic contents, altered phenolic composition by increasing proportion of cell-wall phenolics, and also increased phenolic exudation of the two seaweed species. After 15 days at a salinity of 5, the inhibition of photosynthesis observed previously for A. nodosum coincided with the high exudation of phenolic compounds into the surrounding water of the seaweed tips which resulted in a significant reduction of phenolic contents. Increased copper concentration also reduced total phenolic contents, changed phenolic composition (increase in proportion and level of cell-wall phenolics), and positively affected phenolic exudation of A. nodosum and F. vesiculosus. A decrease in salinity enhanced the copper toxicity and caused the earlier impact on the physiology of seaweed tips. An involvement of phlorotannins in copper binding is also demonstrated; purified phlorotannins from A. nodosum ...Continue Reading

References

Dec 22, 1999·Journal of Agricultural and Food Chemistry·P SanonerJ P Drilleau
Sep 27, 2003·Water Research·Thomas A DavisAlfonso Mucci
Apr 17, 2004·Ecotoxicology and Environmental Safety·Leonardo R AndradeGilberto M Amado Filho
Dec 25, 2008·Ecotoxicology and Environmental Safety·Hans A BaumannDagmar B Stengel
Dec 8, 2009·Chemosphere·Santiago AndradeJuan A Correa

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Citations

Aug 15, 2014·Parasitology Research·Ke-Xin YuChing-Lee Wong
Mar 18, 2016·Journal of Phycology·Jeff T HaftingAlan T Critchley
Feb 16, 2013·Food Chemistry·Elena M BalboaHerminia Domínguez
Aug 10, 2016·DNA Research : an International Journal for Rapid Publication of Reports on Genes and Genomes·Koki NishitsujiEiichi Shoguchi
Jun 22, 2017·International Journal of Molecular Sciences·Marcelo D CatarinoSusana M Cardoso
Aug 1, 2018·Marine Drugs·Marcelo D CatarinoSusana M Cardoso
Feb 20, 2021·Frontiers in Pharmacology·Maryam AbidizadeganJaanika Blomster

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