Abstract：
:A Pseudomonas sp. that may be useful in bioremediation projects was isolated from soil. The strain is of potential value because it reduces selenite to elemental red selenium and is unusual in that it was resistant to high concentrations of both selenate and selenite. Exposure of the strain to 50, 100, and 150 mM selenite reduced growth by 28, 57, and 66%, respectively, while no change in growth was observed when the strain was exposed to 64 mM selenate, the highest level tested. Cells of the strain removed 1.7 mM selenite from the culture fluid during a 7-day incubation. A selenite reductase with a molecular weight of ~115 kD was detected in cell-free extracts and a protein with a molecular weight of ~700 kD was detected that reduced both selenate and nitrate. The bacterial isolate is a strict aerobe, reducing selenite to elemental red selenium under aerobic conditions only. Pseudomonas sp. strain CA5 might be useful as an inoculum for bioreactors used to harvest selenium from selenite-containing groundwater. 16S rRNA gene sequence alignment and fatty acid analysis were used to identify the bacterium as a novel species of Pseudomonas related to P. argentinensis, P. flavescens, and P. straminea.
journal_name
Curr Microbioljournal_title
Current microbiologyauthors
Hunter WJ,Manter DKdoi
10.1007/s00284-009-9358-2subject
Has Abstractpub_date
2009-05-01 00:00:00pages
493-8issue
5eissn
0343-8651issn
1432-0991journal_volume
58pub_type
杂志文章abstract：:Gluconacetobacter diazotrophicus produces levan from sucrose by a secreted levansucrase (LsdA). A levanase-encoding gene ( lsdB), starting 51 bp downstream of the lsdA gene, was cloned from strain SRT4. The lsdB gene (1605 bp) encodes a protein (calculated molecular mass 58.4 kDa) containing a putative 36-amino-acid s...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-001-0044-2
更新日期：2002-07-01 00:00:00
abstract：:Enterotoxigenic Escherichia coli causes diarrhea by producing several virulence factors including heat-labile enterotoxin (LT). LT is maximally expressed at 37 degrees C. The histone-like nucleoid structuring protein (H-NS) appears to inhibit LT expression by binding to a downstream regulatory element (DRE) at low tem...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-004-4282-y
更新日期：2004-11-01 00:00:00
abstract：:A modification is described of the plate method for the detection of microorganisms with overall cellulolytic activity, including those like Cytophaga, in which the activity is cell bound. Within a few days of incubation colonies of cellulose-degrading bacteria formed holes in discs of lens paper placed on freshly ino...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849910027
更新日期：2000-02-01 00:00:00
abstract：:Vibrio harveyi has been reported to enter into a viable but nonculturable (VBNC) state. One marine V. harveyi strain, SF1 became nonculturable when incubated in seawater microcosm at 4 °C within 60 days. We investigated protein expression in the exponential phase of V. harveyi SF1 and compared it to the VBNC state. Cy...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-013-0383-9
更新日期：2013-10-01 00:00:00
abstract：:A gene argH, encoding argininosuccinate lyase (ASL), has been cloned from a cosmid library of the filamentous cyanobacterium Nostoc sp. strain PCC 73102. The argH open reading frame encodes a protein comprised of 461 amino acids with a calculated molecular mass of 51,349 Da. Protein sequence comparisons reveal signifi...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002840010298
更新日期：2001-10-01 00:00:00
abstract：:A high-virulence clone (HVC) was proposed as causing much of the morbidity and mortality when a collection of group B Streptococcus (GBS) isolates was examined by multi-locus enzyme electrophoresis. HVC isolates could be further distinguished by their inability to grow at 40 degrees C, and a temperature-sensitive aldo...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-002-3957-5
更新日期：2003-10-01 00:00:00
abstract：:Potassium tellurite (K2TeO3) is an effective selective agent for O157:H7 Shiga toxin-producing Escherichia coli (STEC), whereas tellurite resistance in non-O157 STEC is variable with information on O45 minimal. High-level K2TeO3 resistance in STEC is attributable to the ter gene cluster with terD an indicator of the c...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-018-1444-x
更新日期：2018-06-01 00:00:00
abstract：:The limitation of phosphate concentrations in effluents is of international concern because of the risk of eutrophication.Acinetobacter spp. have often been isolated from activated sludge plants exhibiting enhanced phosphate removal. The ability to remove phosphate from mixed liquor byAcinetobacter isolates and refere...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/BF01576016
更新日期：1993-09-01 00:00:00
abstract：:Ansamycins is a group of type I polyketides characterized by the unique starter unit 3-amino-5-hydroxybenzoic acid. This family of secondary metabolites shows diverse biological activities, well-known members of which include rifamycin, geldanamycin, and maytansine. Previously, we isolated an AHBA synthase gene-positi...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-015-0798-6
更新日期：2015-06-01 00:00:00
abstract：:The aim of the present study was to determine some properties of antibiotic-resistant bacterial strains isolated from onsite wastewater technology in relation to biofilm formation, e.g., autoaggregation and motility. Additionally, biosurfactant production by the isolates was also evaluated. The ability of selected str...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-017-1428-2
更新日期：2018-05-01 00:00:00
abstract：:Pseudomonas aeruginosa is a serious pathogen involved in nosocomial infections. Its pathogenicity is owed to rich production of virulence factors (VIFs) regulated by several complex hierarchical signal systems depending on environmental conditions, medium composition, and the presence of certain active compounds in it...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-006-0441-7
更新日期：2007-04-01 00:00:00
abstract：:A common activity in the global search for useful Cry toxins is the microscopic screening of bacterial colonies for the presence of Bacillus thuringiensis. High-throughput screens require that aliquots from large numbers of colonies be arrayed on a microscopic slide. However, precisely placing a small amount of bacter...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-015-0870-2
更新日期：2015-09-01 00:00:00
abstract：:We undertook the issue of the distribution of intracellular bacteria among Oribatida (Acari). Six genera of bacteria were detected by PCR and Sanger DNA sequencing: Wolbachia, Cardinium, Rickettsia, Spiroplasma, Arsenophonus, and Hamiltonella. Our research, for the first time, revealed the presence of Cardinium in Mic...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-019-01717-5
更新日期：2019-09-01 00:00:00
abstract：:Amino acid residues in the active site of quinoline 2-oxidoreductase (Qor) that are deemed important for substrate binding and turnover were replaced by site-directed mutagenesis. The apparent k(cat) values for quinoline were reduced 2.4-, 38-, 40-, and 199-fold in the protein variants QorA259G, QorW331G, QorV373A, an...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-004-4452-y
更新日期：2005-04-01 00:00:00
abstract：:On the basis of the pulsed field gel electrophoresis(PFGE) technique, molecular karyotypes in Amoeboaphelidiumprotococcarum (the endotrophic parasite of chlorophycean algae, whichcombines protozoon- and fungus-type characters) were determined. Molecularkaryotypes in the strains X1, X5, and X31, which differ in the hos...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849900155
更新日期：1997-02-01 00:00:00
abstract：:Bacterial communities communicate, regulate and coordinate their cooperative activities and physiological process by releasing, sensing and responding to small diffusible signal molecules such as acyl homoserine lactones (AHLs), auto-inducing oligo-peptides (AIPs) and autoinducer-2, a process referred to as Quorum sen...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-020-02183-0
更新日期：2020-11-01 00:00:00
abstract：:The gene organization and nucleotide sequence of the type A and B BoNT-gene clusters in Clostridium botulinum strain NCTC 2916 were studied. The aim was to clarify the organization of genes within C. botulinum type A strains possessing an unexpressed BoNT/B gene. The BoNT/A-gene cluster includes genes encoding BoNT, N...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849900299
更新日期：1998-04-01 00:00:00
abstract：:Rhodococcus sp. Eu-32 has shown an extended novel dibenzothiophene desulfurization sulfur-specific 4S pathway and could remove significant amounts of organic sulfur from coal. Here, we present the draft genome sequence of Eu-32 with a genome size of approximately 5.61 Mb, containing 5065 protein coding sequences with ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-019-01737-1
更新日期：2019-10-01 00:00:00
abstract：:The influence of soybean galactosaccharides (stachyose, raffinose, melibiose) as well as galactose and glucose on the synthesis and activity of alpha-galactosidase (alpha-gal) from Lactobacillus fermentum CRL 251 was studied. Stachyose was the most effective inducer, followed by melibiose, raffinose, and galactose; sc...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849900118
更新日期：1996-11-01 00:00:00
abstract：:The antibacterial effects of tea polyphenols (TPP) extracted from Korean green tea (Camellia sinensis) against clinical isolates of methicillin-resistant Staphylococcus aureus (MRSA) were evaluated. Characterization of the minimal inhibitory concentration (MIC) of oxacillin for 30 S. aureus strains isolated from patie...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-008-9239-0
更新日期：2008-12-01 00:00:00
abstract：:Although neutral mine drainage is the less frequent subject of the interest than acid mine drainage, it can have adverse environmental effects caused mainly by precipitation of dissolved Fe. The aim of the study was to characterize the composition of bacterial population in environment with high concentration of iron ...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-018-1472-6
更新日期：2018-08-01 00:00:00
abstract：:Polyamines are well-conserved, multifunctional polycations that contribute to a number of processes in the cells such as cell cycle, apoptosis, stress response, and gene expression. Therefore, polyamine levels should be kept under strict regulation by specific polyamine transporters and polyamine synthases. In this st...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-017-1241-y
更新日期：2017-06-01 00:00:00
abstract：:We report on the first characterization of the culturable heterotrophic bacteria of the scleractinian Madracis decactis. In addition, we characterized the culturable bacteria associated with the fireworm Hermodice carunculata, observed predating partially bleached coral colonies. Our study was carried out in the remot...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-013-0435-1
更新日期：2014-01-01 00:00:00
abstract：:Leptospirosis is an important global zoonotic disease caused by pathogenic Leptospira spp. species. Swine leptospirosis has a major economic impact because pigs are sources of animal protein and by-products. The signs of swine leptospirosis are abortion, stillbirth, birth of weak or ill piglets, appearing 14-60 days a...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-012-0237-x
更新日期：2013-02-01 00:00:00
abstract：:Osmotically sensitive mutants of Neurospora crassa are unable to grow on medium supplemented with 4% NaCl, have altered morphologies and cell-wall compositions, and are resistant to dicarboximide fungicides. Osmotic-1 (os-1) mutants have a unique characteristic of forming protoplasts that grow and divide in specialize...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849900193
更新日期：1997-06-01 00:00:00
abstract：:Low-substrate regulated microaerophilic behavior (LSRMB) was observed in 10-54% of the bacteria isolated from several fresh-water lakes or ponds, subsurface soils, activated sludge, and Antarctic dry valley soils. Five Pseudomonas and two Bacillus type species showed LSRMB. A subsurface Pseudomonas jessenii strain was...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002840010097
更新日期：2000-08-01 00:00:00
abstract：:Two strains of Rhizobia isolated from nodules of Vicia faba var. major and one strain isolated from nodules of Cicer arietinum L. were characterized for salt resistance. The presence of 1 mM glycine betaine or choline in a minimal medium with added NaCl had a beneficial role on the growth of the three strains. Both mo...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002849900163
更新日期：1997-03-01 00:00:00
abstract：:Lectins LI and LII, localized on the surface of the nitrogen-fixing soil bacterium Bacillus polymyxa 1460, were shown to possess proteolytic activity. A relationship was found between the proteolytic and hemagglutinating activities of the lectins. Blocking of hemagglutinating activity with specific carbohydrate hapten...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s002840010128
更新日期：2000-10-01 00:00:00
abstract：:A novel Gram-negative gamma-proteobacterium, non-sporulating motile, rod or coccus-shaped bacterium designated as strain PKS7T was isolated from a sediment sample collected from Chilika Lake, Odisha, India and characterized taxonomically using a polyphasic approach. The major quinone was Q8 and major cellular fatty ac...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-019-01802-9
更新日期：2020-01-01 00:00:00
abstract：:Bacteria were isolated from rabbit faeces using equine caecal fluid as a growth medium. Two new isolates of the genus Streptococcus are described in terms of their biochemical properties. One of these has a 16S rRNA gene with 97.7%, and the other 98.5%, identity to Streptococcus thoraltensis. While S. thoraltensis has...
journal_title：Current microbiology
pub_type： 杂志文章
doi：10.1007/s00284-010-9619-0
更新日期：2010-10-01 00:00:00
