Publications

TitleAbstractYear
Filter
PMID(sorted ascending)
Filter
growth and biosurfactant synthesis by nigerian hydrocarbon-degrading estuarine bacteria.the ability of microorganisms to degrade petroleum hydrocarbons is important for finding an environmentally-friendly method to restoring contaminated environmental matrices. screening of hydrocarbon-utilizing and biosurfactant-producing abilities of organisms from an estuarine ecosystem in nigeria, africa, resulted in the isolation of five microbial strains identified as corynebacterium sp. ddv1, flavobacterium sp. ddv2, micrococcus roseus ddv3, pseudomonas aeruginosa ddv4 and saccharomyces cere ...200819419068
[peritonitis due to kocuria rosea in a continuous ambulatory peritoneal dialysis case].micrococcus strains which are the normal flora members of skin, mucosa and oropharynx, may lead to infections associated with intravenous catheter, chronic ambulatory peritoneal dialysis, venticular shunt and prosthetic valve. in this paper, a case of peritonitis due to kocuria rosea of micrococcea family, in a patient undergoing continuous ambulatory peritoneal dialysis (capd), was presented. fiftysix years old female patient was admitted to the hospital by complaints of abdominal pain, nausea ...200919621623
kocuria atrinae sp. nov., isolated from traditional korean fermented seafood.a novel actinobacterium, strain p30(t), was isolated from jeotgal, a traditional korean fermented seafood. cells were aerobic, gram-positive, non-motile and coccoid. optimal growth occurred at 30-37 degrees c, at ph 8-9 and in the presence of 0-2 % (w/v) nacl. based on 16s rrna gene sequence analysis, strain p30(t) was phylogenetically closely related to kocuria carniphila, kocuria gwangalliensis, kocuria rhizophila, kocuria marina, kocuria rosea and k. varians with levels of similarity of 98.6, ...201019661502
antibacterial activity of oregano (origanum vulgare linn.) against gram positive bacteria.the present investigation is focused on antibacterial potential of infusion, decoction and essential oil of oregano (origanum vulgare) against 111 gram-positive bacterial isolates belonging to 23 different species related to 3 genera. infusion and essential oil exhibited antibacterial activity against staphylococcus saprophyticus, s. aureus, micrococcus roseus, m. kristinae, m. nishinomiyaensis, m. lylae, m. luteus, m. sedentarius, m. varians, bacillus megaterium, b. thuringiensis, b. alvei, b. ...200919783523
the use of chromogenic bacteria as coloured substitutes for pathogens: a simple strategy during design and development of a new method for sample pretreatment.in the present study, chromogenic (red) bacteria were used to simulate actual target bacteria during set-up and optimization of an isolation process of bacteria, designed for food samples. isolation of bacteria from food in the context of molecular biological detection of food pathogens is a multistep process. development of such a separation method requires continuous monitoring of the location of the presumable targets in the sample tubes. therefore, red-coloured pigmented bacteria were used a ...201019874486
decolorization and detoxification of sulfonated azo dye methyl orange by kocuria rosea mtcc 1532.kocuria rosea (mtcc 1532) showed 100% decolorization of methyl orange (50 mg l(-1)) under static condition. the optimum ph and temperature for dye decolorization was 6.8 and 30 degrees c, respectively. the k. rosea (mtcc 1532) showed maximum decolorization of methyl orange when growth medium containing yeast extract as compared to other substrates. the culture exhibited significant ability to decolorize repeated additions of dye, with reduction in time up to 12 h at eighth dye aliquot addition. ...201019969416
effects of bovine milk lactoperoxidase system on some bacteria.bovine lactoperoxidase (lpo) was purified from skimmed milk using amberlite cg-50-h+ resin, cm sephadex c-50 ion-exchange chromatography, and sephadex g-100 gel filtration chromatography. lactoperoxidase was purified 20.45-fold with a yield of 28.8%. purity of enzyme checked by sodium dodecyl sulphate-polyacrylamide gel electrophoresis method and a single band was observed. km was 0.25 mm at 20 degrees c, vmax value was 7.95 micromol/ml min at 20 degrees c (ph 6.0). antibacterial study was done ...201020198919
phytoremediation of metals from fly ash through bacterial augmentation.different combinations of four bacterial strains isolated from fly ash were used by us to study their impact on phytoextraction of metals from fly ash by brassica juncea grown in fly ash amended with farm yard manure (50:50 w/w). out of 11 bacterial consortia, a combination of two strains i.e. paenibacillus macerans nbrft5 + bacillus pumilus nbrft9 (c7) inoculated in the rhizosphere was found to enhance pb accumulation maximally by 278%, mn by 75%, zn by 163%, cr by 226% and ni by 414% compared ...201021080221
production of cold-active bacterial lipases through semisolid state fermentation using oil cakes.production of cold active lipase by semisolid state fermentation involves the use of agroindustrial residues. in the present study, semisolid state fermentation was carried out for the production of cold active lipase using micrococcus roseus, isolated from soil samples of gangotri glaciers, western himalayas. among various substrate tested, groundnut oil cake (goc) favored maximal yield of lipases at 15 ± 1°c within 48 h. supplementation of glucose 1% (w/v) as additional carbon source and ammon ...201121603249
Isolation and characterization of aerobic culturable arsenic-resistant bacteria from surfacewater and groundwater of Rautahat District, Nepal.Arsenic (As) contamination of groundwater is a serious Environmental Health Management issue of drinking water sources especially in Terai region of Nepal. Many studies have reported that due to natural abundance of arsenic in the environment, various bacteria have developed different resistance mechanisms for arsenic compound. In this study, the culturable arsenic-resistant bacteria indigenous to surfacewater as well as groundwater from Rautahat District of Nepal were randomly isolated by stand ...201121868146
kocuria sediminis sp. nov., isolated from a marine sediment sample.a gram-positive, pinkish-orange pigmented, coccoid strain, fcs-11(t) was isolated from a marine sediment sample taken from kochi fort area, kerala, india and subjected to polyphasic taxonomic study. the 16s rrna gene sequence of the strain was determined and the results of 16s rrna gene sequence analysis showed that the strain fcs-11(t) should be assigned to the genus kocuria. the chemotaxonomic data supported this taxonomic placement i.e. menaquinones mk-7(h(2)), mk-8(h(2)) and mk-9(h(2)); majo ...201122012251
[detoxification of high concentrations of trinitrotoluene by bacteria].the ability of the strains-destructors of various aromatic compounds to utilize trinitrotoluene (tnt) up to concentration of 70 mg/1 was shown. an increase in the tnt concentration from 100 to 150 mg/1 did not inhibit its conversion rate by the kocuria palustris rs32 strain. the acinetobacter sp. vt 11 strain utilized tnt as a sole substrate for growth; 3,5-dinitro-4-methyl anilide acetate and 2,6-dinitro-4-aminotoluene were identified as intermediates of tnt degradation by active strains of pse ...201222567882
[diversity and antimicrobial activities of actinomycetes from pesticide-contaminated spots in shandong peninsula].in order to study diversity and find antimicrobial activities of actinomycetes from pesticide-contaminated spots in shandong peninsula.201222799208
radio-resistance in psychrotrophic kocuria sp. asb 107 isolated from ab-e-siah radioactive spring.a new isolate, kocuria sp. asb 107 from the ab-e-siah mineral radioactive spring (ramsar, mazandaran province, iran) was characterized on the basis of morphological and biochemical characteristics plus 16s rrna gene sequencing. the isolate is most closely related to kocuria rosea dsm 20447(t) (99.7% sequence similarity) and kocuria polaris dsm 14382(t) (99.5%). this strain has some resistance to various genotoxic stresses, such as ionizing radiation, ultraviolet (256 nm- uv) and corona discharge ...201222809716
chemometric formulation of bacterial consortium-avs for improved decolorization of resonance-stabilized and heteropolyaromatic dyes.a bacterial consortium-avs, consisting of pseudomonas desmolyticum ncim 2112, kocuria rosea mtcc 1532 and micrococcus glutamicus ncim 2168 was formulated chemometrically, using the mixture design matrix based on the design of experiments methodology. the formulated consortium-avs decolorized acid blue 15 and methylene blue with a higher average decolorization rate, which is more rapid than that of the pure cultures. the uv-vis spectrophotometric, fourier transform infra red spectrophotometric an ...201222940340
putrescine biosensor based on putrescine oxidase from kocuria rosea.the novel putrescine oxidase based amperometric biosensor selectively measures putrescine, which can be considered as an indicator of microbial spoilage. putrescine oxidase (puox, ec 1.4.3.10) was isolated from kocuria rosea (micrococcus rubens) by an improved and simplified purification process. cells were grown on brain heart infusion medium supplemented with putrescine. cell-free extract was prepared in tris buffer (ph 8.0) by bead-beater. a newly elaborated step based on three-phase partitio ...201222975122
peritonitis attributable to kocuria rosea in a pediatric peritoneal dialysis patient. 201522991024
pyramidamycins a-d and 3-hydroxyquinoline-2-carboxamide; cytotoxic benzamides from streptomyces sp. dgc1.four new benzamides, pyramidamycins a-d (2-5) along with the new natural 3-hydroxyquinoline-2-carboxamide (6) were isolated from the crude extract of streptomyces sp. dgc1. additionally, five other known compounds, namely 2-aminobenzamide (anthranilamide) (1), 4',7-dihydroxyisoflavanone (7), 2'-deoxy-thymidine, 2'-deoxy-uridine and adenosine were also isolated and identified. the structures of the new compounds 2-6 were elucidated by 1d and 2d nmr studies along with hr ms analyses. the isolated ...201223047245
[bacteremia by kocuria rosea in an aids patient].kocuria rosea is an uncommon pathogen may cause opportunistic infections in immunocompromised patient. we report a hiv patient, who presented bacteremia caused by kocuria rosea. he was successfully treated with vancomycin and by catheter removal.201223096480
stimulated phytoextraction of metals from fly ash by microbial interventions.various combinations of fly ash tolerant bacteria isolated from the rhizospheric zone of typha latifolia naturally growing on a fly ash dump site were tested for enhanced metal uptake by brassica juncea grown in fly ash amended with press mud. after enrichment of the bacteria in a nutrient broth, they were subsequently applied to the rhizospheric zone of b. juncea in different combinations. when the metal analysis was done in the plants at their maturity, it was revealed that out of 11 bacterial ...201223393983
evaluation of bacterial flora during the ripening of kedong sufu, a typical chinese traditional bacteria-fermented soybean product.kedong sufu is a typical bacteria-fermented sufu in china. isolation and identification of the autochthonous bacteria involved would allow the design of specific starters for this speciality. the purpose of the present study was to evaluate the bacterial flora during the ripening of kedong sufu using polymerase chain reaction denaturing gradient gel electrophoresis (pcr-dgge) and culturing.201323400969
dancing vegetations: kocuria rosea endocarditis. 201323814223
descending necrotizing mediastinitis caused by kocuria rosea: a case report.kocuria species are gram-positive, non-pathogenic commensals. however, in immunocompromised patients such as transplant recipients, cancer patients, or patients with chronic medical conditions, they can cause opportunistic infections.201324112281
accelerated ripening of kedong sufu with autochthonous starter cultures kocuria rosea kdf3 and its protease kp3 as adjuncts.application of autochthonous strain kocuria rosea kdf3 and its protease kp3 as adjuncts for acceleration of kedong sufu ripening.201424387790
kocuran, an exopolysaccharide isolated from kocuria rosea strain bs-1 and evaluation of its in vitro immunosuppression activities.in an ongoing survey for bioactive potential of microorganisms from different biosphere zones of india, a promising kocuria rosea strain bs-1 was identified which produced an exopolysaccharide (designated as kocuran) exhibiting in vitro antioxidant and immunosuppression properties. kocuran was characterized as a heteropolysaccharide with repeating monosaccharide residues of glucose, galactose, mannose and glucuronic acid with an average molecular mass of 51.2 kda. in raw 264.7 macrophages, kocur ...201424411453
purification and properties of cellulase from micrococcus roseus.the extracellular carboxymethyl cellulase (cmcase) was purified 17-fold from micrococcus roseus, a symbiotic organism of higher termites. purified cmcase had an m r of 45 kda and was optimally active at ph 8.0 and 40°c. carbohydrate was associated with it and cellobiose was a competitive inhibitor of its activity.199424421202
kocuria rosea canaliculitis: a clinicomicrobiological correlation.kocuria rosea is usually a nonpathogenic commensal colonizing the skin and oropharynx but can become an opportunistic pathogen in immunocompromised states. documented cases of any infections with k. rosea are exceedingly rare. this study reports the first case of canaliculitis with k. rosea, its clinicomicrobiological correlation, and management.201524833460
green synthesis of kocuran-functionalized silver glyconanoparticles for use as antibiofilm coatings on silicone urethral catheters.microbial infections due to biofilm formation on medical implants are serious complications arising after surgery which can be prevented by using antimicrobial coatings on biomaterial surfaces. we developed a simple, rapid and green chemistry approach for synthesis of silver glyconanoparticles (agnps) using kocuran, an exopolysaccharide produced by kocuria rosea strain bs-1. kocuran-capped agnps exhibited a characteristic surface plasmon resonance (spr) peak around 435 nm. they were mono-dispers ...201425060660
new enzymatic methods for selective assay of l-lysine using an l-lysine specific decarboxylase/oxidase from burkholderia sp. aiu 395.we developed new enzymatic methods for the selective assay of l-lysine by utilizing an oxidase reaction and a decarboxylation reaction by the l-lysine-specific decarboxylase/oxidase (l-lys-dc/od) from burkholderia sp. aiu 395. the method utilizing the oxidase reaction of this enzyme was useful for determination of high concentrations of l-lysine. the method utilizing the decarboxylase reaction, which proceeded via the combination of the l-lys-dc/od and putrescine oxidase (puo) from micrococcus r ...201525282636
nurses' uniforms: how many bacteria do they carry after one shift?this pilot study investigated the pathogens that nurses are potentially bringing into the public and their home when they wear work uniforms outside of the work environment. to achieve this, sterilized uniforms were distributed to 10 nurses at a local hospital in washington state at the beginning of their shift. worn uniforms were collected at the end of the shifts and sent to a laboratory for analysis. four tests were conducted: 1) a heterotrophic growth plate count, 2) methicillin-resistant st ...201225285235
kocuria rosea meningitis. 201425314347
microbispora sp. lgmb259 endophytic actinomycete isolated from vochysia divergens (pantanal, brazil) producing β-carbolines and indoles with biological activity.endophytic actinomycetes encompass bacterial groups that are well known for the production of a diverse range of secondary metabolites. vochysia divergens is a medicinal plant, common in the "pantanal" region (brazil) and was focus of many investigations, but never regarding its community of endophytic symbionts. during a screening program, an endophytic strain isolated from the v. divergens, was investigated for its potential to show biological activity. the strain was characterized as microbis ...201525385358
endocarditis by kocuria rosea in an immunocompetent child.kocuria rosea belongs to genus kocuria (micrococcaceae family, suborder micrococcineae, order actinomycetales) that includes about 11 species of bacteria. usually, kocuria sp are commensal organisms that colonize oropharynx, skin and mucous membrane; kocuria sp infections have been described in the last decade commonly affecting immunocompromised patients, using intravenous catheter or peritoneal dialysis. these patients had mainly bacteremia/recurrent sepsis. we hereby describe the case of a 10 ...201525523077
isolation a new strain of kocuria rosea capable of tolerating extreme conditions.a new actinobacterial strain was isolated from ab-e-siah spring (dark water) taken from the ramsar city in iran, and subjected to several stress conditions investigation. the isolate, named mg2 strain, was gram-positive, aerobic, diplococci or tetrad shaped, non-spore forming and non-motile. phylogenetic analysis of the isolate using 16s rdna sequence indicated that the organism matched best with the genus kocuria and the highest sequence similarities (98.55%) being found with kocuria rosea. the ...201525839781
the expanding spectrum of human infections caused by kocuria species: a case report and literature review.although not previously known to cause human infections, kocuria species have now emerged as human pathogens, mostly in compromised hosts with severe underlying disease. recently, there has been an increasing incidence of different types of kocuria infections reported, most likely due to the adoption of better identification methods. here, we report a case of peritonitis caused by kocuria rosea in a diabetic nephropathy patient who was on continuous ambulatory peritoneal dialysis. sepsis and per ...201326038440
isolation a new strain of kocuria rosea capable of tolerating extreme conditions. 201526040583
kocuria dechangensis sp. nov., an actinobacterium isolated from saline and alkaline soils.a gram-stain positive, strictly aerobic, non-motile and coccus-shaped actinobacterium, designated strain neau-st5-33(t), was isolated from saline and alkaline soils in dechang township, zhaodong city, pr china. it formed beige-yellow colonies and grew at nacl concentrations of 0-5% (w/v) (optimum 0%), at ph 6.0-9.0 (optimum ph 7.0) and over a temperature range of 4-50 °c (optimum 35 °c). based on 16s rrna gene sequence analysis, strain neau-st5-33(t) was phylogenetically closely related to the t ...201526048314
kocuria subflava sp. nov., isolated from marine sediment from the indian ocean.a novel gram-staining positive, catalase-positive, oxidase-negative, aerobic, non-motile coccus, designated strain yim 13062(t), was isolated from a marine sediment sample collected from the indian ocean. phylogenetic analysis based on 16s rrna gene sequences showed that strain yim 13062(t) belongs to the genus kocuria, and is closely related to kocuria polaris nbrc 103063(t) (97.8 % similarity), kocuria rosea nbrc 3768(t) (97.6 % similarity) and kocuria carniphila jcm 14118(t) (97.4 % similarit ...201526362332
evaluation of autochthonous micrococcus strains as starter cultures for the production of kedong sufu.the technological properties of 22 micrococcus strains from traditional fermented kedong sufu were evaluated in order to develop autochthonous starter cultures.201626666740
on-chip cell lysis by antibacterial non-leaching reusable quaternary ammonium monolithic column.reusable antibacterial non-leaching monolithic columns polymerized in microfluidic channels designed for on-chip cell lysis applications were obtained by the photoinitiated free radical copolymerization of diallyldimethylammonium chloride (dadmac) and ethylene glycol diacrylate (egda) in the presence of a porogenic solvent. the microfluidic channels were fabricated in cross-linked poly(methyl methacrylate) (x-pmma) substrates by laser micromachining. the monolithic columns have the ability to in ...201626671610
a case of sepsis in a 92-year-old korean woman caused by aerococcus urinae and identified by sequencing the 16s ribosomal rna gene.aerococcus urinae is an uncommon pathogen that was first identified in 1992. herein, we report a case of bloodstream infection caused by a. urinae, which occurred in a 92-year-old korean female patient with an underlying urologic infection who had altered consciousness. the blood culture yielded positive results for a. urinae; however, identifying a. urinae was challenging. ultimately, we used 16s ribosomal rna (rrna) gene sequencing to identify the organism. the patient recovered after being tr ...201626868516
determination of the residual anthracene concentration in cultures of haloalkalitolerant actinomycetes by excitation fluorescence, emission fluorescence, and synchronous fluorescence: comparative study.polycyclic aromatic hydrocarbons (pahs) are compounds that can be quantified by fluorescence due to their high quantum yield. haloalkalitolerant bacteria tolerate wide concentration ranges of nacl and ph. they are potentially useful in the pahs bioremediation of saline environments. however, it is known that salinity of the sample affects fluorescence signal regardless of the method. the objective of this work was to carry out a comparative study based on the sensitivity, linearity, and detectio ...201626925294
rhizosphere associated bacteria trigger accumulation of terpenes in leaves of vitis vinifera l. cv. malbec that protect cells against reactive oxygen species.it has been proposed that plant growth promoting rhizobacteria (pgpr) stimulate plant growth and development by inducing the biosynthesis of secondary metabolites, like terpenes, which reduce stress incidence. three bacteria previously isolated from grapevine roots and adjacent soil (microbacterium imperiale rz19m10, kocuria erythromyxa rt5m10 and terribacillus saccharophilus rt17m10) were tested as pgpr. after 30 days since root inoculation of in vitro grown vitis vinifera cv. malbec plants, th ...201627231874
haloalkalitolerant actinobacteria with capacity for anthracene degradation isolated from soils close to areas with oil activity in the state of veracruz, mexico.the use of native strains of microorganisms from soils is an excellent option for bioremediation. to our knowledge, until now there has been no other group working on the isolation of actinobacteria from contaminated soils in mexico. in this study, samples of soils close to areas with oil activity in the state of veracruz, mexico, were inoculated for the isolation of actinobacteria. the strains isolated were characterized morphologically, and the concentrations of nacl and ph were determined for ...201627762425
some biological activities of pigments extracted from micrococcus roseus (ptcc 1411) and rhodotorula glutinis (ptcc 5257).the importance of replacing synthetic pigments with natural types is increasing day by day in the food industry due to the harmful effects of some synthetic pigments. microorganisms are a major source of natural pigments, which nowadays have attracted the attention of researchers. in this study, carotenoid pigments were produced by micrococcus roseus and rhodotorula glutinis, and some of their biological properties such as antimicrobial, antioxidant, anticancer, and anti-inflammatory activities ...201627895288
kocuria oceani sp. nov., isolated from a deep-sea hydrothermal plume.three strains, fxj8.095t, fxj8.057 and h201, were isolated from deep-sea hydrothermal plume water collected at the southwest indian ridge at a depth of 2800 m. phylogenetic analysis based on 16s rrna gene sequences showed that the isolates formed a closely related subcluster within the genus kocuria. the 16s rrna gene sequence of strain fxj8.095t shared 99.90 and 99.60 % similarity with those of strains fxj8.057 and h201, respectively, and 98.81, 98.75, 98.68 and 98.10 % with those of 'kocuria s ...201727902231
peripherally inserted central catheter-related bloodstream infection caused by kocuria marina in an elderly man.kocuria species are gram-positive, aerobic cocci, and members of the micrcoccaceae family that are known to be opportunistic pathogens. although there have been sporadic reports of infections caused by kocuria species, little is known regarding their human pathogenicity and clinical characteristics.201728102479
a novel thermally stable heteropolysaccharide based bioflocculant from hydrocarbonoclastic strain kocuria rosea bu22s and its application in dye removal.a new bioflocculant named pkr produced by hydrocarbonoclastic strain kocuria rosea bu22s (kc152976) was investigated. first, quantitative analysis of hydrocarbon was carried out in order to study the degradation rate of crude oil by bu22s. gas chromatography - flame ionization detector (gc-fid) analysis confirmed the highly potential of the strain bu22s in the degradation of n-alkanes. second, plackett-burman experimental design and response-surface methodology were carried out to optimize pkr p ...201728357896
Displaying items 201 - 248 of 248