Phospholipid Fatty Acid Composition and Heavy Metal Tolerance of Soil Microbial Communities along Two Heavy Metal-Polluted Gradients in Coniferous Forests.

Applied and Environmental Microbiology
T PennanenErland Bååth

Abstract

The effects of long-term heavy metal deposition on microbial community structure and the level of bacterial community tolerance were studied along two different gradients in Scandinavian coniferous forest soils. One was near the Harjavalta smelter in Finland, and one was at Ronnskar in Sweden. Phospholipid fatty acid (PLFA) analysis revealed a gradual change in soil microbial communities along both pollution gradients, and most of the individual PLFAs changed similarly to metal pollution at both sites. The relative quantities of the PLFAs br18:0, br17:0, i16:0, and i16:1 increased with increasing heavy metal concentration, while those of 20:4 and 18:2(omega)6, which is a predominant PLFA in many fungi, decreased. The fungal part of the microbial biomass was found to be more sensitive to heavy metals. This resulted in a decreased fungal/bacterial biomass ratio along the pollution gradient towards the smelters. The thymidine incorporation technique was used to study the heavy metal tolerance of the bacteria. The bacterial community at the Harjavalta smelter, exposed mainly to Cu deposition, exhibited an increased tolerance to Cu but not to Cd, Ni, and Zn. At the Ronnskar smelter the deposition consisting of a mixture of metals in...Continue Reading

Citations

Jul 4, 2003·Applied and Environmental Microbiology·Barth F SmetsCatalina Arango Pinedo
May 7, 2004·Applied and Environmental Microbiology·R M C P RajapakshaE Bååth
Sep 13, 2008·The FEBS Journal·Nadeem O KaakoushGeorge L Mendz
Jun 14, 2013·Environmental Microbiology Reports·Geoffrey Michael GaddZhan Wei
Dec 28, 2016·Environmental Science and Pollution Research International·Salla Selonen, Heikki Setälä
May 16, 2006·Canadian Journal of Microbiology·Jennifer J MosherCarl G Johnston
Oct 27, 2006·FEMS Microbiology Ecology·Anna LazzaroBeat Frey
May 8, 2007·Ecological Applications : a Publication of the Ecological Society of America·A W G Van der WurffJ E Kammenga
Mar 14, 2012·Applied Microbiology and Biotechnology·Shubhi SrivastavaNandita Singh
May 1, 1999·Applied and Environmental Microbiology·A KonopkaR F Turco
Jul 31, 2001·Journal of Environmental Quality·O KiikkiläH Fritze
Apr 26, 2000·FEMS Microbiology Ecology·H FritzeM Romantschuk
Oct 10, 2002·Journal of Environmental Quality·K SaekiS Matsumoto
Jan 1, 2004·FEMS Microbiology Ecology·Riina TurpeinenMax M Häggblom
Mar 11, 2006·Environmental Geochemistry and Health·Jun GaoShengming Chen
Jun 29, 2007·Journal of Environmental Quality·H-S HelmisaariT M Nieminen
May 7, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Maria J GuedesAna C Freitas
May 5, 2006·Applied and Environmental Microbiology·Ana Lucía Córdova-KreylosKate M Scow
May 3, 2000·Journal of Applied Microbiology·A M GlucksmanJ W Domingo
Feb 18, 2020·Journal of Applied Genetics·K K Nkongolo, R Narendrula-Kotha

❮ Previous
Next ❯

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.