-
The American Journal of Pathology 1959
Topics: Bacterial Infections; Chronic Disease; Humans; Micrococcus; Musculoskeletal Diseases
PubMed: 13617416
DOI: No ID Found -
The British Journal of Ophthalmology Apr 1957
Topics: Aged; Cavernous Sinus Thrombosis; Eye; Humans; Micrococcus; Sinus Thrombosis, Intracranial
PubMed: 13413138
DOI: 10.1136/bjo.41.4.228 -
The Ulster Medical Journal May 1954
Topics: Bacteriology; Humans; Influenza, Human; Micrococcus; Pneumonia; Pneumonia, Staphylococcal
PubMed: 13187731
DOI: No ID Found -
Annals of the Royal College of Surgeons... Sep 1958
Topics: Hospitals; Micrococcus; Wound Infection
PubMed: 13582719
DOI: No ID Found -
Molecular and Cellular Probes Feb 2012The characterization of microbes, such as opportunists and pathogens (e.g., methicillin resistant Staphylococcus aureus [MRSA]), in indoor air is important for...
The characterization of microbes, such as opportunists and pathogens (e.g., methicillin resistant Staphylococcus aureus [MRSA]), in indoor air is important for understanding disease transmission from person-to-person. Common genera found in the human skin microbiome include Micrococcus and Staphylococcus, but there only a limited number of tests to differentiate these genera and/or species. Both genera are believed to be released into indoor air from the shedding of human skin and are morphologically difficult to distinguish. In the current work, after the extraction of proteins from micrococci and the separation of these proteins on one dimensional electrophoretic gels, tryptic peptides were analyzed by MALDI TOF MS and the mass profiles compared with those of a reference strain (ATCC 4698). The results confirmed that all strains were consistent in identity with Micrococcus luteus.
Topics: Air Microbiology; Air Pollution, Indoor; Humans; Mass Spectrometry; Micrococcus; Peptides; Species Specificity; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
PubMed: 21963944
DOI: 10.1016/j.mcp.2011.09.003 -
Scientific Reports Mar 2023The present study elucidates identification and characterization of dimethyl phthalate (DMP) degrading novel bacterial strain, Micrococcus sp. KS2, isolated from soil...
The present study elucidates identification and characterization of dimethyl phthalate (DMP) degrading novel bacterial strain, Micrococcus sp. KS2, isolated from soil contaminated with municipal wastewater. Statistical designs were exercised to achieve optimum values of process parameters for DMP degradation by Micrococcus sp. KS2. The screening of the ten important parameters was performed by applying Plackett-Burman design, and it delivered three significant factors (pH, temperature, and DMP concentration). Further, response surface methodology involving central composite design (CCD) was implemented to examine mutual interactions among variables and achieve their optimal response. The predicted response indicated that maximum DMP degradation (99.67%) could be attained at pH 7.05, temperature 31.5 °C and DMP 289.19 mg/l. The strain KS2 was capable of degrading up to 1250 mg/l of DMP in batch mode and it was observed that oxygen was limiting factor in the DMP degradation. Kinetic modeling of DMP biodegradation indicated that Haldane model fitted well with the experimental data. During DMP degradation, monomethyl phthalate (MMP) and phthalic acid (PA) were identified as degradation metabolites. This study provides insight into DMP biodegradation process and proposes that Micrococcus sp. KS2 is a potential bacterial candidate to treat effluent containing DMP.
Topics: Micrococcus; Phthalic Acids; Biodegradation, Environmental; Kinetics; Sewage
PubMed: 36890143
DOI: 10.1038/s41598-023-29256-x -
Journal of Applied Microbiology Mar 2016The technological properties of 22 micrococcus strains from traditional fermented Kedong sufu were evaluated in order to develop autochthonous starter cultures.
AIMS
The technological properties of 22 micrococcus strains from traditional fermented Kedong sufu were evaluated in order to develop autochthonous starter cultures.
METHODS AND RESULTS
The proteolytic, autolytic and lipolytic activity, salt tolerance, production and degradation of the biogenic amines of six Micrococcus luteus, nine Kocuria kristinae and seven Kocuria rosea were evaluated. The results indicated that these micrococcus strains exhibited a certain technological diversity, and the results also indicated the best properties to be used in mixed starter cultures. Based on the above findings, two sets of autochthonous starters were formulated. Considering the physicochemical properties and sensory characteristics of sufu, the maturation period of sufu was shortened by 30 days. The profiles of free amino acids and peptides partly revealed the mechanism of sensory quality and shorter ripening time of sufu manufactured using autochthonous mixed starters. Compared to back-slopping fermentation, sufu manufactured with selected autochthonous starter cultures exhibited lower levels of total biogenic amines.
CONCLUSIONS
The selected strains could be used as starter to avoid the accumulation of high concentrations of biogenic amines while also maintaining typical sensory characteristics and preserving the autochthonous strains of the traditional Kedong sufu. The maturation times of Kedong sufu were shortened by 30 days with application of the autochthonous starter.
SIGNIFICANCE AND IMPACT OF THE STUDY
Autochthonous mixed starters can reduce the generation of biogenic amines, speed up the sufu maturation process and preserve typical sensory quality. Furthermore, the rotation of two sets of mixed starter cultures can effectively resist phage attack during the production of sufu.
Topics: Amino Acids; Biogenic Amines; Fermentation; Food Microbiology; Micrococcaceae; Micrococcus; Peptides; Soy Foods; Glycine max
PubMed: 26666740
DOI: 10.1111/jam.13023 -
The Biochemical Journal Oct 1970A particulate preparation from Micrococcus lysodeikticus was used to synthesize cell-wall mucopeptide. Radioactive iodinated vancomycin became attached to the...
A particulate preparation from Micrococcus lysodeikticus was used to synthesize cell-wall mucopeptide. Radioactive iodinated vancomycin became attached to the preparation simultaneously with a complete inhibition of mucopeptide synthesis. After mucopeptide synthesis had occurred in the absence of antibiotic, the preparation took up more vancomycin, suggesting that new binding sites terminating in acyl-d-alanyl-d-alanine had been produced. The mucopeptide product was divided into a soluble and an insoluble portion, both sensitive to lysozyme. The soluble portion did not combine with vancomycin and hence had presumably lost its terminal d-alanine residues, either by transpeptidation or because of carboxy-peptidase action. The synthesis of both portions was unaffected by the presence of penicillin, but the insoluble part showed increased affinity for vancomycin, thus indicating that penicillin had caused conservation of d-alanyl-d-alanine termini.
Topics: Binding Sites; Cell-Free System; Glycosaminoglycans; Iodine Isotopes; Micrococcus; Muramidase; Penicillins; Peptide Biosynthesis; Vancomycin
PubMed: 4250137
DOI: 10.1042/bj1190877 -
Antimicrobial Agents and Chemotherapy Jan 1995The in vitro susceptibilities of 63 isolates of Stomatococcus mucilaginosus and of 188 isolates of Micrococcus spp. to 18 antimicrobial agents were determined by the...
The in vitro susceptibilities of 63 isolates of Stomatococcus mucilaginosus and of 188 isolates of Micrococcus spp. to 18 antimicrobial agents were determined by the agar dilution method. Many beta-lactams, imipenem, rifampin, and the glycopeptides were shown to be active in vitro against Stomatococcus and Micrococcus isolates, whereas the activities of antibiotics such as some aminoglycosides, erythromycin, and fosfomycin against an important number of these microorganisms are limited.
Topics: Anti-Bacterial Agents; Colony Count, Microbial; Humans; Microbial Sensitivity Tests; Micrococcaceae; Micrococcus
PubMed: 7695321
DOI: 10.1128/AAC.39.1.268 -
Journal of Clinical Microbiology Jun 1984A modified oxidase test (Remel, Lenexa, Kans.) and susceptibility to furazolidone and lysostaphin (Remel) were evaluated in conjunction with the Staph-Ident strip... (Comparative Study)
Comparative Study
A modified oxidase test (Remel, Lenexa, Kans.) and susceptibility to furazolidone and lysostaphin (Remel) were evaluated in conjunction with the Staph-Ident strip (Analytab Products, Plainview, N.Y.) to accurately differentiate between staphylococci and micrococci. A total of 414 clinical isolates of catalase-positive, gram-positive cocci were each tested with the Staph-Ident strip and by glucose fermentation, acid production from glycerol, susceptibility to furazolidone and lysostaphin, and the oxidase test. Based on the reference methods of glucose fermentation and acid production from glycerol, 396 (95.6%) of the organisms were classified as Staphylococcus species and 18 (4.4%) were classified as Micrococcus species. Of the staphylococci, 99% were oxidase negative and susceptible to furazolidone; 82% were susceptible to lysostaphin. All of the micrococci were oxidase-positive and resistant to furazolidone and lysostaphin. Of the staphylococci, 99% were identified to species by the Staph-Ident strip. However, six (33%) of the micrococci were incorrectly identified as Staphylococcus species (three each of Staphylococcus hominis and Staphylococcus saprophyticus). Because of the demonstrated sensitivity and specificity of the oxidase and furazolidone susceptibility tests, it is suggested that either of these methods be used in the clinical laboratory to accurately differentiate between staphylococci and micrococci. It is also suggested that when working with the Staph-Ident strip, additional testing such as furazolidone susceptibility or oxidase activity should be performed to provide increased accuracy in the differentiation and characterization of members of the family Micrococcaceae.
Topics: Bacteriological Techniques; Fermentation; Furazolidone; Glucose; Glycerol; Lysostaphin; Micrococcus; Oxidoreductases; Reagent Strips; Staphylococcus
PubMed: 6381527
DOI: 10.1128/jcm.19.6.875-879.1984