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Reduction Of Selenium Oxyanions By Enterobacter Cloacae SLD1a-1: Isolation And Growth Of The Bacterium And Its Expulsion Of Selenium Particles.

Manuel Losi, William T. Frankenberger
Published 1997 · Biology, Medicine
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A facultative bacterium capable of removing the selenium (Se) oxyanions selenate (SeO(inf4)(sup2-)) and selenite (SeO(inf3)(sup2-)) from solution culture in flasks open to the atmosphere was isolated and studied with the goal of assessing its potential for use in bioremediation of seleniferous agricultural drainage water. Elemental Se (Se(sup0)) was confirmed as a product of the reaction. The organism, identified as Enterobacter cloacae and designated strain SLD1a-1 (ATCC 700258), removed from 61.5 to 94.5% of added SeO(inf4)(sup2-) (the primary species present in agricultural drainage water) at concentrations from 13 to 1,266 (mu)M. Equimolar amounts of nitrate (NO(inf3)(sup-)), which interferes with SeO(inf4)(sup2-) reduction in some organisms, did not influence the reaction in growth experiments but had a slight inhibitory effect in a washed-cell suspension. Washed-cell suspension experiments also showed that (i) SeO(inf3)(sup2-) is a transitory intermediate in reduction of SeO(inf4)(sup2-), being produced and rapidly reduced concomitantly; (ii) NO(inf3)(sup-) is also reduced concomitantly and at a much higher rate than SeO(inf4)(sup2-); and (iii) although enzymatic, reduction of either oxyanion does not appear to be an inducible process. Transmission electron microscopy revealed that precipitate particles are <0.1 (mu)m in diameter, and these particles were observed free in the medium. Evidence indicates that SLD1a-1 uses SeO(inf4)(sup2-) as an alternate electron acceptor and that the reaction occurs via a membrane-associated reductase(s) followed by rapid expulsion of the Se particles.



This paper is referenced by
10.1007/978-981-32-9860-6_15
Heavy Metal Toxicity and Possible Functional Aspects of Microbial Diversity in Heavy Metal-Contaminated Sites
Pradeep Shukla (2019)
10.5772/INTECHOPEN.72096
Microbial-Based Bioremediation of Selenium and Tellurium Compounds
Elena Piacenza (2017)
10.1128/9781555817190.CH16
Nanoparticles Formed from Microbial Oxyanion Reduction of Toxic Group 15 and Group 16 Metalloids
Carolyn I Pearce (2011)
10.1007/978-90-481-9370-7_10
Biochemical and Molecular Aspects in Phytoremediation of Selenium
Luigi F. De Filippis (2010)
10.3389/fenvs.2018.00139
Diversifying Anaerobic Respiration Strategies to Compete in the Rhizosphere
Solène M. Lecomte (2018)
THE BACTERIAL TOXICITY OF SELENOCYANATE AND THE INCORPORATION OF TELLURIUM AND SELENIUM IN BACTERIAL CELLS, AND THE SYNTHESIS AND BIOSYNTHESIS OF CADMIUM TELLURIDE NANOPARTICLES AND THEIR ELEMENTAL QUANTIFICATION VIA ICP-AES
(2012)
10.1007/s00253-005-0276-3
Selenite reduction by a denitrifying culture: batch- and packed-bed reactor studies
Sridhar Viamajala (2006)
Impact of Aggregate-scale Heterogeneity of Transport and Biogeochemical Processes on Selenium Mobility in Soil
Matteo Francesco Kausch (2011)
10.1016/S0378-1097(03)00782-1
Selenate reduction by Enterobacter cloacae SLD1a-1 is catalysed by a molybdenum-dependent membrane-bound enzyme that is distinct from the membrane-bound nitrate reductase.
Carys A. Watts (2003)
10.1007/978-3-642-32867-1_7
Bioremediation via Microbial Metal Reduction
Mathew P. Watts (2013)
Constructed wetland treatment system: An approach for mitigating risks of flue gas desulfurization waters
Derek Anderson Eggert (2009)
Selenite reduction and uptake hydrogenase activity in Rhodospirillum rubrum
Esther van Praag (2002)
10.4172/2155-6199.1000391
Reduction of Selenium by Pseudomonas stutzeri Nt-I: Growth, Reductionand Kinetics
Wessels Ce (2017)
10.1016/j.watres.2020.115832
Why does sulfate inhibit selenate reduction: Molybdenum deprivation from Mo-dependent selenate reductase.
Ling-Dong Shi (2020)
10.1201/ebk1439826775-c4
Environmental sources, speciation and partitioning of selenium
Bill Maher (2010)
10.3934/microbiol.2017.4.798
Uptake and reduction of Se(IV) in two heterotrophic aerobic Pseudomonads strains isolated from boreal bog environment
Merja Lusa (2017)
10.1007/s12275-019-8427-x
Microbial transformation of Se oxyanions in cultures of Delftia lacustris grown under aerobic conditions
Shrutika L Wadgaonkar (2019)
10.1016/j.jhazmat.2013.12.028
Reduction of chalcogen oxyanions and generation of nanoprecipitates by the photosynthetic bacterium Rhodobacter capsulatus.
R. Borghese (2014)
10.1007/978-3-319-46835-8_2
Biosynthesis of Metal and Semiconductor Nanoparticles, Scale-Up, and Their Applications
Mojtaba Salouti (2017)
10.1016/j.jhazmat.2016.02.035
Selenite biotransformation and detoxification by Stenotrophomonas maltophilia SeITE02: Novel clues on the route to bacterial biogenesis of selenium nanoparticles.
Silvia Lampis (2017)
Selenium metabolism in microorganisms
Xu Qiao-lin (2017)
10.1002/9781119487210.ch9
Prokaryotic and Eukaryotic Microbes: Potential Tools for Detoxification and Bioavailability of Metalloids
Neera Garg (2020)
10.1007/s00792-010-0305-8
Physiological adaptations and tolerance towards higher concentration of selenite (Se+4) in Enterobacter sp. AR-4, Bacillus sp. AR-6 and Delftia tsuruhatensis AR-7
Dhan Prakash (2010)
10.9790/2380-0533440
Effect of vermicompost on biotransformation and bioavailability of hexavalent chromium in soil
Sunitha Rangasamy (2013)
10.1016/j.biotechadv.2016.05.005
Selenium: environmental significance, pollution, and biological treatment technologies.
Lea Chua Tan (2016)
10.1002/9781118677629.CH6
Biosynthesis of Size-Controlled Metal and Metal Oxide Nanoparticles by Bacteria
Chung-Hao Pio Kuo (2015)
10.1016/J.CHEMGEO.2013.05.013
Isotope fractionation of selenium by biomethylation in microcosm incubations of soil
Kathrin Schilling (2013)
10.1016/j.biotechadv.2011.08.018
Microbial processing of tellurium as a tool in biotechnology.
R. Turner (2012)
10.1128/AEM.68.9.4613-4622.2002
Isolation of Tellurite- and Selenite-Resistant Bacteria from Hydrothermal Vents of the Juan de Fuca Ridge in the Pacific Ocean
Christopher Rathgeber (2002)
10.1104/pp.112.199307
Selenium Distribution and Speciation in the Hyperaccumulator Astragalus bisulcatus and Associated Ecological Partners1[W][OA]
José R Valdez Barillas (2012)
10.1016/j.biortech.2016.04.033
Microbial selenite reduction with organic carbon and electrode as sole electron donor by a bacterium isolated from domestic wastewater.
Van Khanh Nguyen (2016)
10.1080/07388551.2017.1420623
Environmental impact and bioremediation of seleniferous soils and sediments
Shrutika L Wadgaonkar (2018)
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