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Sökning: WFRF:(Watkin Elizabeth L. J.) > (2012) > Bioleaching in brac...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004198naa a2200493 4500
001oai:DiVA.org:umu-52179
003SwePub
008120213s2012 | |||||||||||000 ||eng|
009oai:DiVA.org:lnu-26023
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-521792 URI
0247 a https://doi.org/10.1007/s00253-011-3731-32 DOI
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-260232 URI
040 a (SwePub)umud (SwePub)lnu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Zammit, Carla M.4 aut
2451 0a Bioleaching in brackish waters-effect of chloride ions on the acidophile population and proteomes of model species
264 c 2011-11-30
264 1a New York :b Springer,c 2012
338 a print2 rdacarrier
520 a High concentrations of chloride ions inhibit the growth of acidophilic microorganisms used in biomining, a problem particularly relevant to Western Australian and Chilean biomining operations. Despite this, little is known about the mechanisms acidophiles adopt in order to tolerate high chloride ion concentrations. This study aimed to investigate the impact of increasing concentrations of chloride ions on the population dynamics of a mixed culture during pyrite bioleaching and apply proteomics to elucidate how two species from this mixed culture alter their proteomes under chloride stress. A mixture consisting of well-known biomining microorganisms and an enrichment culture obtained from an acidic saline drain were tested for their ability to bioleach pyrite in the presence of 0, 3.5, 7, and 20 g L(-1) NaCl. Microorganisms from the enrichment culture were found to out-compete the known biomining microorganisms, independent of the chloride ion concentration. The proteomes of the Gram-positive acidophile Acidimicrobium ferrooxidans and the Gram-negative acidophile Acidithiobacillus caldus grown in the presence or absence of chloride ions were investigated. Analysis of differential expression showed that acidophilic microorganisms adopted several changes in their proteomes in the presence of chloride ions, suggesting the following strategies to combat the NaCl stress: adaptation of the cell membrane, the accumulation of amino acids possibly as a form of osmoprotectant, and the expression of a YceI family protein involved in acid and osmotic-related stress.
650 7a MEDICIN OCH HÄLSOVETENSKAPx Medicinsk bioteknologix Annan medicinsk bioteknologi0 (SwePub)304992 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Medical Biotechnologyx Other Medical Biotechnology0 (SwePub)304992 hsv//eng
650 7a NATURVETENSKAPx Biologix Mikrobiologi0 (SwePub)106062 hsv//swe
650 7a NATURAL SCIENCESx Biological Sciencesx Microbiology0 (SwePub)106062 hsv//eng
653 a Biomining
653 a Chloride
653 a Proteomics
653 a Brackish
653 a Membrane
653 a Mikrobiologi
7001 a Mangold, Stefanieu Umeå universitet,Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet)4 aut0 (Swepub:umu)stma0012
7001 a Jonna, Venkateswara Raou Umeå universitet,Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet)4 aut0 (Swepub:umu)vera0003
7001 a Mutch, Lesley A.4 aut
7001 a Watling, Helen R.4 aut
7001 a Dopson, Marku Linnéuniversitetet,Umeå universitet,Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet),Institutionen för naturvetenskap, NV,Department of Molecular Biology, Umeå University, Umeå, Sweden,Ctr Ecol & Evolut Microbial Model Syst EEMiS4 aut0 (Swepub:lnu)madoaa
7001 a Watkin, Elizabeth L. J.4 aut
7102 a Umeå universitetb Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet)4 org
7730 t Applied Microbiology and Biotechnologyd New York : Springerg 93:1, s. 319-329q 93:1<319-329x 0175-7598x 1432-0614
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-52179
8564 8u https://doi.org/10.1007/s00253-011-3731-3
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-26023

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