| mycobacterium marseillense sp. nov., mycobacterium timonense sp. nov. and mycobacterium bouchedurhonense sp. nov., members of the mycobacterium avium complex. | an rpob sequence-based evaluation of 100 mycobacterium avium complex (mac) clinical isolates led to the identification of five respiratory tract isolates that were potential representatives of three novel mac species. distinctive phenotypic features of isolates 62863 and 5356591(t) included a pseudomycelium morphology and both esterase and acid phosphatase activities. these two isolates exhibited sequence similarities of 99.8 % for the 16s rrna gene, 86.3 and 86.1 % for 16s-23s rrna gene interna ... | 2009 | 19628609 |
| genotyping of mycobacterium avium complex organisms using multispacer sequence typing. | mycobacterium avium complex (mac) currently comprises eight species of environmental and animal-associated, slowly-growing mycobacteria: mycobacterium avium, mycobacterium intracellulare, mycobacterium chimaera, mycobacterium colombiense, mycobacterium arosiense , mycobacterium bouchedurhonense, mycobacterium marseillense and mycobacterium timonense. in humans, mac organisms are responsible for opportunistic infections whose unique epidemiology remains poorly understood, in part due to the lack ... | 2010 | 19926652 |
| surviving within the amoebal exocyst: the mycobacterium avium complex paradigm. | most of environmental mycobacteria have been previously demonstrated to resist free-living amoeba with subsequent increased virulence and resistance to antibiotics and biocides. the mycobacterium avium complex (mac) comprises of environmental organisms that inhabit a wide variety of ecological niches and exhibit a significant degree of genetic variability. we herein studied the intra-ameobal location of all members of the mac as model organisms for environmental mycobacteria. | 2010 | 20359345 |
| pulmonary disease caused by mycobacterium marseillense, italy. | | 2014 | 25271594 |
| possible misidentification of mycobacterium yongonense. | | 2014 | 24856193 |
| mycobacterium yongonense sp. nov., a slow-growing non-chromogenic species closely related to mycobacterium intracellulare. | a slow-growing non-chromogenic mycobacterium was isolated from a patient with pulmonary disease. phenotypically, strain 05-1390(t) was similar to mycobacterium intracellulare atcc 13950(t). the 16s rrna gene sequence (1385 bp) of strain 05-1390(t) showed a high degree of similarity to those of the m. intracellulare complex, namely mycobacterium marseillense 5351974(t) (100 %), m. intracellulare atcc 13950(t) (99.8 %) and mycobacterium chimaera dsm 44623(t) (99.9 %). phylogenetic analysis based o ... | 2013 | 22427442 |
| characterization of a novel variant of mycobacterium chimaera. | in this study, nonchromogenic mycobacteria were isolated from pulmonary samples of three patients in the netherlands. all isolates had identical, unique 16s rrna gene and 16s-23s its sequences, which were closely related to those of mycobacterium chimaera and mycobacterium marseillense. the biochemical features of the isolates differed slightly from those of m. chimaera, suggesting that the isolates may represent a possible separate species within the mycobacterium avium complex (mac). however, ... | 2012 | 22700551 |
| first case of nontuberculous mycobacterial lung disease caused by mycobacterium marseillense in a patient with systemic lupus erythematosus. | mycobacterium marseillense was designated as a new species within mycobacterium avium complex. we report the first case of m. marseillense lung disease in a patient with systemic lupus erythematosus. all serial isolates were identified as m. marseillense by multilocus sequence analysis, based on hsp65, 16s-23s rrna internal transcribed spacer, and 16s rrna fragments. | 2014 | 24768296 |
| multidrug-resistant nontuberculous mycobacteria isolated from cystic fibrosis patients. | worldwide, nontuberculous mycobacteria (ntm) have become emergent pathogens of pulmonary infections in cystic fibrosis (cf) patients, with an estimated prevalence ranging from 5 to 20%. this work investigated the presence of ntm in sputum samples of 129 cf patients (2 to 18 years old) submitted to longitudinal clinical supervision at a regional reference center in rio de janeiro, brazil. from june 2009 to march 2012, 36 ntm isolates recovered from 10 (7.75%) out of 129 children were obtained. mo ... | 2014 | 24920766 |