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Neisseriaceae
The Neisseriaceae are a family of Pseudomonadota, within the ''Neisseriales'' order. While many organisms in the family are mammalian commensals or part of the normal flora, the genus ''Neisseria'' includes two important human pathogens, specifically those responsible for gonorrhea (caused by'' N. gonorrhoeae'') and many cases of meningitis ("meningococcal meningitis", caused by'' N. meningitidis''). As a group, the Neisseriaceae are strictly aerobic and Gram-negative, occur mainly in pairs (diplococci A diplococcus (plural diplococci) is a round bacterium (a coccus) that typically occurs in the form of two joined cells. Types Examples of gram-negative diplococci are '' Neisseria spp.'' and ''Moraxella catarrhalis.'' Examples of gram-posit ...), and typically do not have flagella. References Bacteria of Medical Importancein ''Todar's Online Textbook of Bacteriology''. * * Betaproteobacteria {{Betaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neisseriales
The Neisseriaceae are a family of Pseudomonadota, within the ''Neisseriales'' order. While many organisms in the family are mammalian commensals or part of the normal flora, the genus ''Neisseria'' includes two important human pathogens, specifically those responsible for gonorrhea (caused by'' N. gonorrhoeae'') and many cases of meningitis ("meningococcal meningitis", caused by'' N. meningitidis''). As a group, the Neisseriaceae are strictly aerobic and Gram-negative, occur mainly in pairs (diplococci A diplococcus (plural diplococci) is a round bacterium (a coccus) that typically occurs in the form of two joined cells. Types Examples of gram-negative diplococci are '' Neisseria spp.'' and ''Moraxella catarrhalis.'' Examples of gram-posit ...), and typically do not have flagella. References Bacteria of Medical Importancein ''Todar's Online Textbook of Bacteriology''. * * Betaproteobacteria {{Betaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplococcus
A diplococcus (plural diplococci) is a round bacterium (a coccus) that typically occurs in the form of two joined cells. Types Examples of gram-negative diplococci are '' Neisseria spp.'' and ''Moraxella catarrhalis.'' Examples of gram-positive diplococci are ''Streptococcus pneumoniae'' and ''Enterococcus'' spp. Presumably, diplococcus has been implicated in encephalitis lethargica Encephalitis lethargica is an atypical form of encephalitis. Also known as "sleeping sickness" or "sleepy sickness" (distinct from tsetse fly-transmitted sleeping sickness), it was first described in 1917 by neurologist Constantin von Economo a .... Taxonomy Gram-negative diplococci ''Neisseria'' spp. Phylum: Proteobacteria Class: Betaproteobacteria Order: Neisseriales Family: Neisseriaceae Genus: ''Neisseria'' The genus ''Neisseria'' belongs to the family Neisseriaceae. This genus, ''Neisseria,'' is divided into more than ten different species, but most of them are gram negat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microvirgula
''Microvirgula'' is a Gram-negative bacteria genus from the family of Neisseriaceae. Up to now there is only one species of this genus known (Microvirgula aerodenitrificans ''Microvirgula aerodenitrificans'' is a species of bacteria, the only species in its genus. It is a Gram-negative, catalase-and oxidase-positive, curved rod-shaped and motile denitrifier. It is aerobic as well as an anoxic heterotroph, having an ...). References Further reading * * Neisseriales Monotypic bacteria genera Bacteria genera {{Betaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laribacter
''Laribacter'' is a bacterial genus in the family of Neisseriaceae. ''Laribacter hongkongensis'' is the only species in the genus, and it has been isolated from human cases of diarrhea. However, its role in causing diarrhea is unproven, even though it has been hypothesized. References Further reading * * * Neisseriales Monotypic bacteria genera Bacteria genera {{Betaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kingella
''Kingella'' is a genus of bacteria of the family Neisseriaceae. It belongs to the HACEK group of fastidious Gram-negative bacteria that tend to cause endocarditis. '' Kingella kingae'' is its type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specime .... Species As of 2021, five species belong to the genus: *'' Kingella denitrificans'' Snell & Lapage 1976 *'' Kingella kingae'' (Henriksen & Bøvre 1968) Henriksen & Bøvre 1976 *'' Kingella negevensis'' El Houmami ''et al''. 2017 *'' Kingella oralis'' corrig. Dewhirst ''et al''. 1993 *'' Kingella potus'' Lawson ''et al''. 2005 References Neisseriales {{Betaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquaphilus
''Aquaphilus'' is a genus of bacteria from the family of Neisseriaceae with one known species ('' Aquaphilus dolomiae''). References Further reading * * Neisseriales Bacteria genera Monotypic bacteria genera {{Betaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bergeriella
''Bergeriella'' is a genus of bacteria from the family of Neisseriaceae with one known species ('' Bergeriella denitrificans''). ''Bergeriella denitrificans'' has been isolated from the oral mucosa of a rat. References Neisseriales Bacteria genera Monotypic bacteria genera {{Betaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromobacterium
''Chromobacterium'' is a genus of Gram-negative rod-shaped bacteria. Currently, eleven species within the genus are known, two of those are ''Chromobacterium violaceum ''Chromobacterium violaceum'' is a Gram-negative, facultative anaerobic, non-sporing coccobacillus. It is motile with the help of a single flagellum which is located at the pole of the coccobacillus. Usually, there are one or two more lateral ...'' and ''Chromobacterium subtsugae''; the latter was discovered by scientists at the Agricultural Research Service in Beltsville, Maryland. References Neisseriales Bacteria genera {{Betaproteobacteria-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eikenella
''Eikenella corrodens'' is a Gram-negative facultative anaerobic bacillus that can cause severe invasive disease in humans. It was first identified by M. Eiken in 1958, who called it ''Bacteroides corrodens''. ''E. corrodens'' is a rare pericarditis associated pathogen. It is a fastidious, slow growing, human commensal bacillus, capable of acting as an opportunistic pathogen and causing abscesses in several anatomical sites, including the liver, lung, spleen, and submandibular region. ''E. corrodens'' could independently cause serious infection in both immunocompetent and immunocompromised hosts. Microbiology ''Eikenella corrodens'' is a pleomorphic bacillus that sometimes appears coccobacillary and typically creates a depression (or "pit") in the agar on which it is growing. Only half produce the pitting of the agar considered characteristic.. It is slow-growing, facultative, anaerobic and a gram-negative bacillus. It grows in aerobic and anaerobic conditions, but requires a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aquaspirillum
''Aquaspirillum'' (ak'wă-spī-ril'ŭm) is a genus of helical aerobic bacteria in the family ''Neisseriaceae'' that lives in freshwater. Taxonomy In 1832, the genus ''Spirillum'' was created and encompassed an array of helical bacteria. In 1957, the large genus was reviewed and narrowed to include 19 species based on morphology and a few other physiological characteristics. The genus ''Aquaspirillum'' was not created until 1973, when another review of ''Spirillum'' led to the division of the genus into ''Aquaspirillum'', ''Oceanospirillum'', and ''Spirillum''. Etymology The genus' name is a combination of several words. ''Aqua'' comes from Latin, meaning water; ''speîra'' comes from Greek, meaning a spiral; ''spirillum'' come from Neo-Latin, meaning a small spiral. Put together, the genus' name means "small water spiral." Species The new genus comprised the following 13 species when it was created: *'' Aquaspirillum anulus'' *'' Aquaspirillum aquaticum'' * ''Aquaspirill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neisseria
''Neisseria'' is a large genus of bacteria that colonize the mucosal surfaces of many animals. Of the 11 species that colonize humans, only two are pathogens, '' N. meningitidis'' and ''N. gonorrhoeae''. ''Neisseria'' species are Gram-negative bacteria included among the Pseudomonadota, a large group of Gram-negative forms. ''Neisseria'' diplococci resemble coffee beans when viewed microscopically. Pathogenesis and classification Pathogens Species of this genus (family Neisseriaceae) of parasitic bacteria grow in pairs and occasionally tetrads, and thrive best at 98.6 °F (37 °C) in the animal body or serum media. The genus includes: * ''N. gonorrhoeae'' (also called the gonococcus) causes gonorrhea. * '' N. meningitidis'' (also called the meningococcus) is one of the most common causes of bacterial meningitis and the causative agent of meningococcal septicaemia. These two species have the ability of 'breaching' the barrier. Local cytokines of the area become secr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vitreoscilla
''Vitreoscilla'' is a genus of Gram-negative aerobic bacterium. The bacterial haemoglobin ( VHb) was first discovered from ''Vitreoscilla'', and VHb is found to have a wide range of biological and biotechnological applications including promotion of cell growth, protein synthesis, metabolite productivity, respiration, cellular detoxification, fermentation, and biodegradation. Etymology The generic name is derived from the Latin adjective ''vitreus'', which means clear or transparent; and the noun ''oscillum'', meaning a swing. Thus ''Vitreoscilla'' is used to describe the bacterium as the transparent swing or oscillator, the way it exhibits locomotion. Species There are three valid species under the genus, namely *'' Vitreoscilla beggiatoides'' Pringsheim 1949 (type species) *'' Vitreoscilla filiformis'' (ex Pringsheim 1951) Strohl ''et al.'' 1986 *'' Vitreoscilla stercoraria'' Pringsheim 1951 Structure Members of ''Vitreoscilla'' are obligate aerobic bacteria, which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
