Methylobacterium mesophilicum

Last updated

Methylobacterium mesophilicum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Bacteria
Phylum: Pseudomonadota
Class: Alphaproteobacteria
Order: Hyphomicrobiales
Family: Methylobacteriaceae
Genus: Methylobacterium
Species:
M. mesophilicum
Binomial name
Methylobacterium mesophilicum
(Austin and Goodfellow 1979)
Green and Bousfield 1983
Synonyms

Pseudomonas mesophilicaAustin and Goodfellow 1979

Methylobacterium mesophilicum is a Gram-negative, soil-dwelling bacterium, reported to be an opportunistic pathogen in immunocomprimised patients.

Methylobacteria are typically slow-growing and produce pink-pigmented colonies. Pink pigmentation is the primary diagnostic characteristic used in the initial isolation of Methylobacteria. With extended incubation, pink colonies often take on a coral hue. M. mesophilicum and M. zatmanii are the two most commonly reported species isolated in clinical samples. [1] [2]

Methylobacteria have been reported to exhibit resistance to chlorination [3] and have been isolated from tap water in various clinical settings including: an investigation of a pseudo-outbreak, [4] water from dental units, [5] and blood purification units.[ citation needed ] Tap water is a suspected mode of transmission. The presence of these organisms in tap water prompted suggestions that it may be helpful to monitor these organisms in water distribution systems in hospital units for immunocompromised patients. [1]

Related Research Articles

<i>Campylobacter</i> Genus of gram-negative bacteria

Campylobacter is a type of bacteria that can cause a diarrheal disease in people. Its name means "curved bacteria", as the germ typically appears in a comma or "s" shape. According to its scientific classification, it is a genus of gram-negative bacteria that is motile.

<i>Enterobacter</i> Genus of bacteria

Enterobacter is a genus of common Gram-negative, facultatively anaerobic, rod-shaped, non-spore-forming bacteria of the family Enterobacteriaceae. Cultures are found in soil, water, sewage, feces and gut environments. It is the type genus of the order Enterobacterales. Several strains of these bacteria are pathogenic and cause opportunistic infections in immunocompromised hosts and in those who are on mechanical ventilation. The urinary and respiratory tracts are the most common sites of infection. The genus Enterobacter is a member of the coliform group of bacteria. It does not belong to the fecal coliforms group of bacteria, unlike Escherichia coli, because it is incapable of growth at 44.5 °C in the presence of bile salts. Some of them show quorum sensing properties.

<i>Balamuthia mandrillaris</i> Species of pathogenic Amoebozoa

Balamuthia mandrillaris is a free-living amoeba that causes the rare but deadly neurological condition granulomatous amoebic encephalitis (GAE). B. mandrillaris is a soil-dwelling amoeba and was first discovered in 1986 in the brain of a mandrill that died in the San Diego Wild Animal Park.

<i>Elizabethkingia meningoseptica</i> Species of bacterium

Elizabethkingia meningoseptica is a Gram-negative, rod-shaped bacterium widely distributed in nature. It may be normally present in fish and frogs; it may be isolated from chronic infectious states, as in the sputum of cystic fibrosis patients. In 1959, American bacteriologist Elizabeth O. King was studying unclassified bacteria associated with pediatric meningitis at the Centers for Disease Control and Prevention in Atlanta, when she isolated an organism that she named Flavobacterium meningosepticum. In 1994, it was reclassified in the genus Chryseobacterium and renamed Chryseobacterium meningosepticum(chryseos = "golden" in Greek, so Chryseobacterium means a golden/yellow rod similar to Flavobacterium). In 2005, a 16S rRNA phylogenetic tree of Chryseobacteria showed that C. meningosepticum along with C. miricola were close to each other but outside the tree of the rest of the Chryseobacteria and were then placed in a new genus Elizabethkingia named after the original discoverer of F. meningosepticum.

Mycobacterium gordonae is a species of Mycobacterium named for Ruth E. Gordon. It is a species of the phylum Actinomycetota, belonging to the genus Mycobacterium.

Methylorubrum extorquens is a Gram-negative bacterium. Methylorubrum species often appear pink, and are classified as pink-pigmented facultative methylotrophs, or PPFMs. The wild type has been known to use both methane and multiple carbon compounds as energy sources. Specifically, M. extorquens has been observed to use primarily methanol and C1 compounds as substrates in their energy cycles. It has been also observed that use lanthanides as a cofactor to increase its methanol dehydrogenase activity

Ewingella americana is a Gram-negative rod, and the only species in the genus Ewingella. It was first identified and characterized in 1983. Ewingella is in the family Yersiniaceae. The organism is rarely reported as a human pathogen, though it has been isolated from a variety of clinical specimens, including wounds, sputum, urine, stool, blood, synovial fluid, conjunctiva, and peritoneal dialysate. The bacterium is named in honor of William H. Ewing, an American biologist who contributed to modern taxonomy.

Clostridium innocuum is an anaerobic, non-motile, gram-positive bacterium that reproduces by sporulation. While there are over 130 species of Clostridium, C. innocuum is the third most commonly isolated. Although it is not normally considered an aggressive human pathogen, it has been isolated in some disease processes. C. innocuum and other Clostridium line the oropharynx and gastrointestinal tract, and are considered normal gut flora.

Nocardia farcinica is a species of bacteria, once thought to be associated with farcy, and a member of the genus Nocardia. This species is very similar in phenotype to Nocardia asteroides, to the degree that some isolates of N. asteroides were later found to be Nocardia farcinica.

Helicobacter pullorum is a bacterium in the Helicobacteraceae family, Campylobacterales order. It was isolated from the liver, duodenum, and caecum of broiler and layer chickens, and from humans with gastroenteritis. It is a nongastric urease-negative Helicobacter species colonizing the lower bowel.

Bordetella holmesii is a Gram-negative, rod-shaped bacterium of the genus Bordetella. It was named in recognition of Barry Holmes, a biologist. It is asaccharolytic, oxidase-negative, and nonmotile, producing a brown pigment. It is associated with sepsis, endocarditis, and respiratory illness, especially in immunocompromised patients, such as asplenic or AIDS patients. It is often seen in conjunction with Bordetella pertussis infections, although not always.

<span class="mw-page-title-main">Human coronavirus 229E</span> Species of virus

Alphacoronavirus chicagoense is a species of coronavirus which infects humans and bats. It is an enveloped, positive-sense, single-stranded RNA virus which enters its host cell by binding to the APN receptor. Along with Human coronavirus OC43, it is one of the viruses responsible for the common cold. HCoV-229E is a member of the genus Alphacoronavirus and subgenus Duvinacovirus.

<i>Methylobacterium fujisawaense</i> Species of bacterium

Methylobacterium fujisawaense is a facultatively anaerobic, Gram-negative, rod-shaped bacteria. It is catalase-positive and oxidase-negative. It produces pink-pigment on microbiological agar media. This bacteria is facultatively methylotrophic and is widely distributed in nature. They can be isolated from soil and on occasion freshwater environments, including drinking water.

Helicobacter canadensis is a bacterium in the Helicobacteraceae family, Campylobacterales order, first isolated from humans with diarrhea. Its genome has been sequenced.

Methylorubrum zatmanii is a bacterium.

Aichivirus A formerly Aichi virus (AiV) belongs to the genus Kobuvirus in the family Picornaviridae. Six species are part of the genus Kobuvirus, Aichivirus A-F. Within Aichivirus A, there are six different types including human Aichi virus, canine kobuvirus, murine kobuvirus, Kathmandu sewage kobuvirus, roller kobuvirus, and feline kobuvirus. Three different genotypes are found in human Aichi virus, represented as genotype A, B, and C.

Scedosporiosis is the general name for any mycosis – i.e., fungal infection – caused by a fungus from the genus Scedosporium. Current population-based studies suggest Scedosporium prolificans and Scedosporium apiospermum to be among the most common infecting agents from the genus, although infections caused by other members thereof are not unheard of. The latter is an asexual form (anamorph) of another fungus, Pseudallescheria boydii. The former is a "black yeast", currently not characterized as well, although both of them have been described as saprophytes.

<i>Corynebacterium ulcerans</i> Species of prokaryote

Corynebacterium ulcerans is a rod-shaped, aerobic, and Gram-positive bacterium. Most Corynebacterium species are harmless, but some cause serious illness in humans, especially in immunocompromised humans. C. ulcerans has been known to cause diphtheria and diphtheria-like infections in patients. Previously thought to simply be contaminants recovered from diphtheria patients, “coryneform” or “diphtheroids” are now believed to be the cause of such infections.

Methylorubrum thiocyanatum is a facultative methylotroph bacteria from the genus Methylorubrum that has been isolated from soil around the plant Allium aflatunense in Warwickshire, United Kingdom.

<i>Corynebacterium striatum</i> Species of bacterium

Corynebacterium striatum is a bacterium that is a member of the Corynebacterium genus. It is classified as non-diphtheritic. The bacterium is a gram-positive prokaryote that assumes a 'club-like' morphology, more formally known as a corynebacteria structure. It is non-lipophilic and undergoes aerobic respiration. It is a facultative anaerobe. It is catalase negative and is an oxidase positive glucose and sucrose fermenter.

References

  1. 1 2 Hornei, B; Lüneberg, E; Schmidt-Rotte, H; Maass, M; Weber, K; Heits, F; Frosch, M; Solbach, W (1999). "Systemic infection of an immunocompromised patient with Methylobacterium zatmanii". Journal of Clinical Microbiology. 37 (1): 248–50. doi:10.1128/JCM.37.1.248-250.1999. PMC   84226 . PMID   9854105.
  2. Kaye, K. M.; MacOne, A; Kazanjian, P. H. (1992). "Catheter infection caused by Methylobacterium in immunocompromised hosts: Report of three cases and review of the literature". Clinical Infectious Diseases. 14 (5): 1010–4. doi:10.1093/clinids/14.5.1010. PMID   1600002.
  3. Hiraishi, A; Furuhata, K; Matsumoto, A; Koike, K. A.; Fukuyama, M; Tabuchi, K (1995). "Phenotypic and genetic diversity of chlorine-resistant Methylobacterium strains isolated from various environments". Applied and Environmental Microbiology. 61 (6): 2099–107. Bibcode:1995ApEnM..61.2099H. doi:10.1128/AEM.61.6.2099-2107.1995. PMC   167482 . PMID   7793931.
  4. Flournoy, DJ; Petrone, RL; Voth, DW (1992). "A pseudo-outbreak of Methylobacterium mesophilica isolated from patients undergoing bronchoscopy". European Journal of Clinical Microbiology & Infectious Diseases . 11 (3): 240–3. doi:10.1007/bf02098087. PMID   1597201. S2CID   24900422.
  5. Barbeau, J; Tanguay, R; Faucher, E; Avezard, C; Trudel, L; Côté, L; Prévost, A. P. (1996). "Multiparametric analysis of waterline contamination in dental units". Applied and Environmental Microbiology. 62 (11): 3954–9. Bibcode:1996ApEnM..62.3954B. doi:10.1128/AEM.62.11.3954-3959.1996. PMC   168213 . PMID   8899982.