Assessing the effect of silver and cadmium and their mixtures using a multispecies system at different trophic levels: multibiomarker approach and environmental microbiome
Author(s): Trombini C; Herruzo-Ruiz AM; Sendra M; Moreno-Garrido I; Alhama J; Michán C; Blasco J;
Presenter: Julian Blasco
The occurrence of metals in aquatic ecosystems is on many occasions linked to contamination problems, although the release from natural sources can co-exist, and the relative importance of their origin depends on the metal and the area. Due to many activities (agriculture, mining, wastewater, etc.) that can release them to aquatic ecosystems, metal contamination is a ubiquitous problem in those environments. However, the information available about the effect on specific trophic levels is less known. In this work, we have employed a multispecies experimental sediment-water setup with microbiome, microalgae, microcrustacean and clams, to assess the impact of Cd and Ag exposure, individually and in a mixture, at two concentrations, 5 and 50 µg/L. A multibiomarker approach was carried out in the clam Scrobicularia plana to assess the impact of metal pollution. Enzyme activities related to oxidative stress and bioaccumulation in the control and exposure organisms were determined. Simultaneously, the identification of bacterial microorganisms at different taxonomic levels was performed by using 16S rRNA genomic analysis. Results show specific changes related to the different metal exposures. As far as we know, this work is the first one combining a classical multibiomarker approach with the global evaluation of the environmental microbiome.
This work has been funded by the Spanish National Research Plan (CTM2016-75908-R and PID2019-110049RB-I00) and EDRF. The authors would like to thank to the Andalusia Regional Research Plan to support research teams BIO-187 and RNM-306 and the Research Support Services (SCAI) of the University of Córdoba.
Keywords: multibiomarker; metals; multispecies system
Graduada em Ciências Biológicas pela Universidade Federal de São Carlos (1985) com mestrado em Ciências (Fisiologia Geral) pela Universidade de São Paulo (1990). Realizou o doutorado no Departamento de Fisiologia Geral do IBUSP e no Departamento de Zoologia da Universidade de Leicester, Inglaterra e...Saiba mais
2000-Present Professor Aquatic Ecotoxicology, University of California, Riverside, CA USA
1995-1999 Associate Professor Pharmacology and Environmental Toxicology, University of Mississippi, MS USA
1991-1995 Assistant professor Pharmacology and Toxicology, University of Arkansas for Medi...
Gisela de Aragão Umbuzeiro is a full professor at School of Technology – UNICAMP, Brazil and an adjunct professor at Wilson College of Textiles, NCSU, USA. She graduated in Biology at University of Campinas - UNICAMP (1979), Ph.D. in Genetics also at UNICAMP (1990). Worked for 22 years at the Enviro...Saiba mais
Hotel Himmelblau has a family tradition of over 40 years, operating and offering the very best in hospitality. Located in the central region of the city, we are close to the main attractions of Blumenau, next to Shopping Neumarkt and at a distance of 2km from Vila Germanica Park.
Rua 7 de Setembro - 1415 - Centro
Blumenau - Santa Catarina - Brasil