| taxonomic dissection of the genus micrococcus: kocuria gen. nov., nesterenkonia gen. nov., kytococcus gen. nov., dermacoccus gen. nov., and micrococcus cohn 1872 gen. emend. | the results of a phylogenetic and chemotaxonomic analysis of the genus micrococcus indicated that it is significantly heterogeneous. except for micrococcus lylae, no species groups phylogenetically with the type species of the genus, micrococcus luteus. the other members of the genus form three separate phylogenetic lines which on the basis of chemotaxonomic properties can be assigned to four genera. these genera are the genus kocuria gen. nov. for micrococcus roseus, micrococcus varians, and mi ... | 1995 | 7547287 |
| demetria terragena gen. nov., sp. nov., a new genus of actinomycetes isolated from compost soil. | a novel actinomycete was isolated from compost soil and was studied taxonomically and phylogenetically. cells of this organism were gram positive, not acid fast, nonmotile, nonsporulating, irregular coccoid to short rod shaped, and microaerophilic. the cell wall peptidoglycan contained lysine and was cross-linked via an l-lys<--l-ser<--d-asp interpeptide bridge. the major menaquinone was mk-8(h4). the polar lipids were phosphatidylinositol, phosphatidylglycerol, diphosphatidylglycerol, phosphati ... | 1997 | 9336919 |
| kytococcus sedentarius (formerly micrococcus sedentarius) and dermacoccus nishinomiyaensis (formerly micrococcus nishinomiyaensis) produce monensins, typical streptomyces cinnamonensis metabolites. | the environmental isolate kytococcus sedentarius tr-2 was found to be a new producer of the oligoketide antibiotics monensin a and b. electron microscopic studies demonstrated that the tr-2 strain had coccoid cells and dna analysis revealed no close relationship to streptomyces cinnamonensis, a typical monensin producer. production of monensins was also proven with six culture collection k. sedentarius strains and three dermacoccus nishinomiyaensis strains. the secondary metabolism of micrococci ... | 1998 | 9933918 |
| [the use of batumin-containing disks for the rapid identification of staphylococci]. | the study of 467 microbial strains obtained from collections and from clinical sources revealed that microorganisms of the genus staphylococcus were highly sensitive to batumin, a new antibiotic obtained from bacteria of the genus pseudomonas. 378 strains of 15 staphylococcus species proved to be highly sensitive to the diagnostic preparation "diastaph", developed on the basis of batumin (antibiotic-impregnated discs); after 18-hour incubation the diameter of the growth inhibition zones on agar- ... | 1999 | 10852028 |
| characterization of micrococcaceae isolated from salt used for spanish dry-cured ham. | the microbial flora of salt used in the production of spanish dry-cured ham was studied. the results indicated that micrococcaceae constituted the predominant flora. identification of the 369 isolates belonging to the family micrococcaceae revealed that 60% belonged to genus staphylococcus, 25% to micrococcus, 6% to kocuria, 5.4% to dermacoccus and 0.5% to stomatococcus. the species most often isolated was staph. xylosus (28.9%), followed by m. lylae (21.4%), staph. equorum (18.55%) and d. nishi ... | 2000 | 11068912 |
| [occurrence of bacteria in the mouth from genera of micrococcus, kocuria, nesterenkonia, kytococcus and dermacoccus]. | the aim of the study was to assess the prevalence of different bacteria in the oral cavity. the bacteria were present in the oral cavities of 73 (48.7%) of 150 individuals. nesterenkonia halobia, the most frequently isolated species, was found in 20 (27%) individuals, micrococcus luteus in 16 (22%), kocuria kristinae in 12 (16%), kocuria varians in 10 (14%), dermacoccus sedentarius in 9 (12%), micrococcus lylae in 8 (11%), and kytococcus nishinomiyaensis in 3 (4%). mean counts of these microorga ... | 2002 | 12185681 |
| [occurrence and number of bacteria from the micrococcus, kocuria, nesterenkonia, kytococcus and dermacoccus genera on skin and mucous membranes in humans]. | the aim of work was to evaluate the frequency of occurrence of bacteria from genera of micrococcus, kocuria, nesterenkonia, kytococcus and dermatococcus on human skin and mucous membranes in healthy population. among 150 investigated persons these bacteria were found in 122 (81.3%). the frequency of isolation was similar in both sex (82.4% in female and 79.7% in male). most often the strains were isolated from oral cavity (48.7%), and from skin of palm and forearm (40.7% and 37.3%). least freque ... | 2003 | 12908417 |
| [susceptibility to antibiotics of bacteria from genera micrococcus, kocuria, nesterenkonia, kytococcus and dermacoccus]. | two hundred and nineteen strains from genera micrococcus, kocuria, nesterenkonia, kytococcus and dermacoccus isolated from different sources, such as saliva, skin of palm and forearm and from vestibule of nose were tested. the susceptibility to doxycycline, cetriaxone, cefuroxyme, amikacyne, amoksycillin with clavulanic acid, trimethoprim/sulfamethoxazole, ampicillin, ciprofloxacin, penicillin and erythromycin were estimated. in general, bacteria from these genera are sensitive to most of select ... | 2003 | 12908418 |
| biofilm formation characteristics of bacterial isolates retrieved from a reverse osmosis membrane. | high-quality water purification systems using reverse osmosis (ro) membrane separation have faced a major challenge related to biofilm formation on the membrane surface, or biofouling. to understand this issue, the biofilm formation characteristics of four bacterial isolates previously retrieved from an ro membrane treating potable water were investigated. biofilm formation of all four isolates occurred to different extents in microtiter plates and could be related to one or more cell properties ... | 2005 | 16245826 |
| diversity of actinomycetes isolated from challenger deep sediment (10,898 m) from the mariana trench. | thirty-eight actinomycetes were isolated from sediment collected from the mariana trench (10,898 m) using marine agar and media selective for actinomycetes, notably raffinose-histidine agar. the isolates were assigned to the class actinobacteria using primers specific for members of this taxon. the phylogenetic analysis based on 16s rrna gene sequencing showed that the isolates belonged to the genera dermacoccus, kocuria, micromonospora, streptomyces, tsukamurella and williamsia. all of the isol ... | 2006 | 16538400 |
| dermacoccus abyssi sp. nov., a piezotolerant actinomycete isolated from the mariana trench. | the taxonomic status of an actinobacterial strain isolated from mariana trench sediment was determined using a polyphasic taxonomic approach. the strain, isolate mt1.1(t), formed a distinct clade in the micrococcineae 16s rrna gene tree together with dermacoccus nishinomiyaensis dsm 20448(t). the organism had chemical and phenotypic properties consistent with its classification in the genus dermacoccus and could be distinguished from d. nishinomiyaensis dsm 20448(t) using dna-dna relatedness and ... | 2006 | 16738097 |
| dermacoccus barathri sp. nov. and dermacoccus profundi sp. nov., novel actinomycetes isolated from deep-sea mud of the mariana trench. | the taxonomic positions of two actinobacterial strains isolated from mariana trench sediment were established using a combination of genotypic and phenotypic data. the strains, isolates mt2.1(t) and mt2.2(t), formed a distinct phyletic line in the micrococcineae 16s rrna gene tree together with dermacoccus abyssi ncimb 14084(t). the isolates had chemical and phenotypic properties typical of members of the genus dermacoccus and could be distinguished sharply from one another and from the type str ... | 2006 | 17012551 |
| bacterial diversity in aortic aneurysms determined by 16s ribosomal rna gene analysis. | aortic aneurysms are common vascular conditions that cause considerable morbidity and mortality. understanding of the mechanisms involved in the pathogenesis of the condition remains limited. recently, infection has been suggested as possible contributor in the development of the disease. the aim of the present study was to examine aortic aneurysms for the presence of bacterial dna using polymerase chain reaction (pcr) targeting the 16s ribosomal rna (rrna) gene, followed by cloning and sequenci ... | 2006 | 17098542 |
| candicidin-producing streptomyces support leaf-cutting ants to protect their fungus garden against the pathogenic fungus escovopsis. | leaf-cutting ants such as acromyrmex octospinosus live in obligate symbiosis with fungi of the genus leucoagaricus, which they grow with harvested leaf material. the symbiotic fungi, in turn, serve as a major food source for the ants. this mutualistic relation is disturbed by the specialized pathogenic fungus escovopsis sp., which can overcome leucoagaricus sp. and thus destroy the ant colony. microbial symbionts of leaf-cutting ants have been suggested to protect the fungus garden against escov ... | 2009 | 19270078 |
| luteipulveratus mongoliensis gen. nov., sp. nov., an actinobacterial taxon in the family dermacoccaceae. | a novel actinobacterial strain, mn07-a0370(t), was isolated from mongolian soil and its taxonomic status was determined using a polyphasic approach. comparative 16s rrna gene sequence studies revealed that strain mn07-a0370(t) represented a novel lineage within the actinobacteria. strain mn07-a0370(t) formed a distinct clade in the family dermacoccaceae and was most closely related to the members of the genera dermacoccus (16s rrna gene sequence similarity, 96.2 %-96.4 %), demetria (94.1 %) and ... | 2010 | 19654344 |
| yimella lutea gen. nov., sp. nov., a novel actinobacterium of the family dermacoccaceae. | a gram-stain-positive, coccoid, non-motile, halotolerant actinobacterium, designated yim 45900(t), was found as a contaminant on an agar plate in the laboratory of yunnan institute of microbiology, china. the peptidoglycan type was a4alpha with an (l)-lys-(l)-ser-(d)-asp interpeptide bridge. the cell-wall sugars contained galactose and fucose. the predominant menaquinone was mk-8(h(4)). the major fatty acids were iso-c(15 : 0), anteiso-c(15 : 0) and anteiso-c(17 : 0). the polar lipids contained ... | 2010 | 19656924 |
| metabolism of azo dyes by human skin microbiota. | reduction of methyl red (mr) and orange ii (or ii) by 26 human skin bacterial species was monitored by a rapid spectrophotometric assay. the analysis indicated that skin bacteria, representing the genera staphylococcus, corynebacterium, micrococcus, dermacoccus and kocuria, were able to reduce mr by 74-100 % in 24 h, with only three species unable to reduce completely the dye in that time. among the species tested, only corynebacterium xerosis was unable to reduce or ii to any degree by 24 h, an ... | 2010 | 19729456 |
| dermacozines, a new phenazine family from deep-sea dermacocci isolated from a mariana trench sediment. | dermacoccus abyssi sp. nov., strains mt1.1 and mt1.2 are actinomycetes isolated from mariana trench sediment at a depth of 10 898 m. fermentation using isp2 and 410 media, respectively, lead to production of seven new oxidized and reduced phenazine-type pigments, dermacozines a-g (1-7), together with the known phenazine-1-carboxylic acid (8) and phenazine-1,6-dicarboxylic acid (9). extensive use was made of 1d and 2d-nmr data, and high resolution ms to determine the structures of the compounds. ... | 2010 | 20448892 |
| a guide to successful bioprospecting: informed by actinobacterial systematics. | new structurally diverse natural products are discovered when novel screening procedures are introduced or when high quality biological materials from new sources are examined in existing screens, hence it is important to foster these two aspects of novelty in drug discovery programmes. amongst prokaryotes, actinomycetes, notably streptomycetes, remain a rich source of new natural products though it has become increasingly difficult to find such metabolites from common actinomycetes as screening ... | 2010 | 20582471 |
| calidifontibacter indicus gen. nov., sp. nov., a novel actinobacterium belonging to family dermacoccaceae isolated from western ghats region, india and emendation of the family dermacoccaceae. | during the course of the study of bacterial diversity of western ghats, india, an actinobacterium strain designated as pc iw02(t) was isolated and characterized by polyphasic taxonomic approach. the isolate pc iw02(t) was gram positive, short rod, non-motile and creamish in colour. the 16s rrna gene sequence analysis showed closest sequence similarity with members of the genus dermacoccus: dermacoccus barathri (96.6%), dermacoccus profundi (96.5%), dermacoccus abyssi (96.4%) and dermacoccus nish ... | 2010 | 21075908 |