Environmental Concentrations of Copper, Alone or in Mixture With Arsenic, Can Impact River Sediment Microbial Community Structure and Functions

Frontiers in Microbiology
Ayanleh Mahamoud AhmedStéphane Pesce

Abstract

In many aquatic ecosystems, sediments are an essential compartment, which supports high levels of specific and functional biodiversity thus contributing to ecological functioning. Sediments are exposed to inputs from ground or surface waters and from surrounding watershed that can lead to the accumulation of toxic and persistent contaminants potentially harmful for benthic sediment-living communities, including microbial assemblages. As benthic microbial communities play crucial roles in ecological processes such as organic matter recycling and biomass production, we performed a 21-day laboratory channel experiment to assess the structural and functional impact of metals on natural microbial communities chronically exposed to sediments spiked with copper (Cu) and/or arsenic (As) alone or mixed at environmentally relevant concentrations (40 mg kg-1 for each metal). Heterotrophic microbial community responses to metals were evaluated both in terms of genetic structure (using ARISA analysis) and functional potential (using exoenzymatic, metabolic and functional genes analyses). Exposure to Cu had rapid marked effects on the structure and most of the functions of the exposed communities. Exposure to As had almost undetectable effec...Continue Reading

References

Jun 1, 1996·Canadian Journal of Microbiology·T M Roane, S T Kellogg
Jun 4, 1999·Trends in Microbiology·B P Rosen
Jul 17, 2001·Environmental Science & Technology·N E KeonH F Hemond
Aug 5, 2003·Postgraduate Medical Journal·R N Ratnaike
May 7, 2004·Applied and Environmental Microbiology·R M C P RajapakshaE Bååth
May 12, 2004·Journal of Microbiological Methods·Juan C López-GutiérrezLaurent Philippot
Oct 19, 2004·Journal of Microbiological Methods·Sonia HenryLaurent Philippot
Feb 5, 2005·Applied and Environmental Microbiology·Simon Silver, L T Phung
May 25, 2005·Chemosphere·E FulladosaI Villaescusa
Nov 3, 2005·Systematic and Applied Microbiology·C R JacksonS L Dugas
Jul 22, 2006·Systematic and Applied Microbiology·Julia I K SchwarzRalf Conrad
Sep 8, 2006·Applied and Environmental Microbiology·Ellen KandelerLaurent Philippot
Oct 20, 2006·Journal of Hazardous Materials·Suiling Wang, Catherine N Mulligan
Jan 9, 2007·Microbiological Research·Elena Dell'AmicoVincenza Andreoni
Jun 5, 2008·Environmental Toxicology and Chemistry·Ana C MoránBernardo González
Aug 13, 2008·Proceedings of the National Academy of Sciences of the United States of America·Steven D Allison, Jennifer B H Martiny
Jan 1, 2004·FEMS Microbiology Ecology·Riina TurpeinenMax M Häggblom
Oct 1, 2003·FEMS Microbiology Ecology·Ann-Louise HaglundLars Tranvik
Dec 8, 2009·Applied and Environmental Microbiology·Asma Achour-RokbaniPatrick Billard
Jun 7, 2011·Applied and Environmental Microbiology·Emilie LyauteyFrédéric Garabetian
Oct 4, 2011·Chemosphere·Karen F Burga PérezJean-François Férard
Dec 1, 2011·The Science of the Total Environment·David Fernández-CalviñoManuel Arias-Estévez
Dec 3, 2011·The Science of the Total Environment·Petr DrahotaOndřej Sebek
Jan 17, 2012·Environmental Pollution·Michael FaupelWalter Traunspurger
Aug 13, 2013·The Science of the Total Environment·Eduardo D LeivaPablo A Pasten
Mar 7, 2014·World Journal of Microbiology & Biotechnology·Yang-Guo ZhaoFarhana Maqbool
Feb 6, 2015·Metallomics : Integrated Biometal Science·Erik Ladomersky, Michael J Petris
Apr 1, 2016·Environmental Geochemistry and Health·S R HettiarachchiR Ubrihien

❮ Previous
Next ❯

Citations

Dec 22, 2019·Environmental Science and Pollution Research International·Stéphane PesceBenoit J D Ferrari
Mar 18, 2021·Environmental Science and Pollution Research International·Laura MarzialiAlfredo Schiavon
Jul 29, 2021·Environmental Science. Processes & Impacts·Mija AŽdajićAlexandre J Poulain

❮ Previous
Next ❯

Methods Mentioned

BETA
PCR
ARISA
genotyping

Software Mentioned

ARISA
R
PAST
Vegan
BioSystems Peak Scanner
stat
Applied

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.