Effects of Flavin-Goethite Interaction on Goethite Reduction by Shewanella decolorationis S12

Frontiers in Microbiology
Gang ZhaoMeiying Xu

Abstract

Flavin mononucleotide (FMN) and riboflavin are structurally similar flavins, except for the presence of a phosphate group on the FMN molecule. They are used by a variety of electroactive bacteria as extracellular electron shuttles in microbial Fe reduction and inevitably interact with Fe (hydr)oxides in the extracellular environment. It is currently unknown whether flavin/Fe (hydr)oxide interaction interferes with extracellular electron transfer (EET) to the mineral surface. In this study, we found that the goethite reduction rate was lower when mediated by FMN than by RF, suggesting that FMN was less effective in shuttling electrons between cells and minerals. Nevertheless, the phosphate group did not prevent the FMN molecule from accepting electrons from bacterial cells and transferring electrons to the mineral. Results of adsorption experiment, attenuated total reflectance (ATR) Fourier transform infrared (FTIR) spectroscopy, and bacterial attachment trend analyses showed that FMN exhibited strong adsorption on goethite surface by forming phosphate inner-sphere complex, which prevented bacterial cells from approaching goethite. Therefore, the interaction between FMN and goethite surface may increase the distance of electron ...Continue Reading

References

Mar 9, 2002·Environmental Science & Technology·Brice M R AppenzellerJean-Claude Block
Dec 14, 2005·Environmental Microbiology·Karrie A WeberEric E Roden
Jul 1, 1987·Applied and Environmental Microbiology·D R Lovley, E J Phillips
Sep 20, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Sanjai J Parikh, Jon Chorover
Dec 11, 2007·Applied and Environmental Microbiology·Harald von CansteinJonathan R Lloyd
Sep 20, 2008·Environmental Science & Technology·Beizhan YanDaniel E Giammar
Apr 17, 2009·Environmental Science & Technology·Yu YangJay Gan
Nov 10, 2009·Journal of Bacteriology·Dan CoursolleJeffrey A Gralnick
Apr 12, 2013·Proceedings of the National Academy of Sciences of the United States of America·Akihiro OkamotoRyuhei Nakamura
Jul 16, 2014·Frontiers in Microbiology·Catarina M PaqueteRicardo O Louro
Mar 31, 2015·Science·James M ByrneAndreas Kappler
Apr 1, 2016·Environmental Science & Technology·Wei YanChuanyong Jing
Aug 31, 2016·Nature Reviews. Microbiology·Liang ShiJames K Fredrickson
Jul 6, 2017·Frontiers in Microbiology·Yonggang YangMeiying Xu
Sep 28, 2018·Environmental Science & Technology·Danielle R MonteverdeSergio A Sañudo-Wilhelmy
Dec 13, 2018·Frontiers in Microbiology·Lingyan HuangShungui Zhou

❮ Previous
Next ❯

Citations

Nov 8, 2020·Applied and Environmental Microbiology·Cuifen GanMeiying Xu

❮ Previous
Next ❯

Software Mentioned

Image J
2Dshige

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.