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Aeromonas | |
---|---|
Aeromonas hydrophila | |
Scientific classification | |
Kingdom: | Bacteria |
Phylum: | Proteobacteria |
Class: | Gammaproteobacteria[citation needed] |
Order: | Aeromonadales |
Family: | Aeromonadaceae |
Genus: | Aeromonas Stanier 1943 |
Type strain | |
Aeromonas hydrophila | |
Species | |
A. aquariorum |
Aeromonas is a gram-negative, facultative anaerobic rod that morphologically resembles members of the family Enterobacteriaceae. Fourteen species of Aeromonas have been described, most of which have been associated with human diseases. The most important pathogens are A. hydrophila, A. caviae, and A. veronii biovar sobria. The organisms are ubiquitous in fresh and brackish water.
They group with the gamma subclass of the Proteobacteria.[1]
Two major diseases associated with Aeromonas are gastroenteritis and wound infections, with or without bacteremia. Gastroenteritis typically occurs after the ingestion of contaminated water or food, whereas wound infections result from exposure to contaminated water.
Although some potential virulence factors (e.g. endotoxins, hemolysins, enterotoxins, adherence factors) have been identified, their precise role is unknown. Aeromonas species cause:
If automated machines are not using the most updated database, Elizabethkingia meningoseptica may be mistaken for Aeromonas salmonicida.
Gastrointestinal disease in children is usually an acute, severe illness, whereas that in adults tends to be chronic diarrhea. Severe Aeromonas gastroenteritis resembles shigellosis, with blood and leukocytes in the stool. Acute diarrheal disease is self limited, and only supportive care is indicated in affected patients.
Aeromonas species are resistant to penicillins, most cephalosporins, and erythromycin. Ciprofloxacin is consistently active against their strains in the U.S. and Europe, but resistant cases have been reported in Asia.
The name Aeromonas derives from:
Greek noun aer, aeros (ἀήρ, ἀέρος), air, gas; Greek feminine gender noun monas (μονάς / μονάδα), unit, monad; New Latin feminine gender noun Aeromonas, gas(-producing) monad.[2]
Members of the genus Aeromonas can be referred to as aeromonad (viz. Trivialisation of names).
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リンク元 | 「細菌の鑑別」「アエロモナス」「エロモナス」「エロモナス菌」「アエロモナス属」 |
拡張検索 | 「Aeromonas属」「Aeromonas proteolytica」 |
菌種 | 形態 | 抗酸性 | 芽胞 | 運動性 | 空気中での発育 | 嫌気条件下での発育 | カタラーゼ | オキシダーゼ | ブドウ糖分解 | OF試験 |
Micrococcus | C | - | - | - | + | - | + | - | D | O/- |
Staphylococcus | C | - | - | - | + | + | + | - | + | F |
Aerococcus | C | - | - | - | + | W | W/- | - | + | F |
Streptococcus | C | - | - | +/- | + | + | - | - | + | F |
Pediococcus | C. | - | - | - | + | + | - | - | + | F |
Gemella | ||||||||||
嫌気性球菌*1 | C | - | - | - | - | + | - | - | +/- | F/- |
Kurthia | R | - | - | + | + | + | + | - | - | - |
Corynebacterium | R | - | - | - | + | + | + | - | +/- | F/- |
Listeria | R | - | - | + | + | + | + | - | + | F |
Erysipelothnx | R | - | - | + | + | + | F | |||
Lactobacillus | ||||||||||
Arachnia*2 | ||||||||||
Rothia | R | - | - | - | + | - | + | ● | + | F |
Propiombacterium | R | - | - | - | - | + | + | . | + | F |
Achnomyces | R | - | - | - | - | + | - | ● | + | F |
Bifidobacterium | ||||||||||
Eubacterium | R | - | - | - | - | + | - | . | +/- | F/- |
Clostridium | R | - | <+> | D | - | + | - | ● | D | F/- |
Bacillus | R | - | <+> | D | + | D | + | d | D | F/O/- |
Nocardia | R | W | - | - | + | - | + | - | + | O |
Mycobacterium | R | + | - | - | + | . | + | - | + | O/NT |
*1:Peptococcus, Peptostreptococus(あるいは Leuconostoc) *2:あるいはActinomyces odontolyticus D:その属の菌種によって反応が異なる。 d: 菌種によって反応が異なる。 F:発酵 O:酸化 W:弱反応 ・:不明 NT:テストできない <+>:芽胞非形成筋もある C:球菌 R:桿菌 |
菌種 | 形態 | 運動性 | 空気中での発育 | 嫌気条件下での発育 | カタラーゼ | オキシダーゼ | ブドウ糖(酸) | OF試験 |
Bacteroides | R | - | - | + | d | - | D | F/- |
Veillonella | C | - | - | + | D | ・ | - | - |
Neissena | C | - | + | - | + | + | + | O |
Branhamella | C | - | + | - | + | + | - | - |
Acinetobacter | C/R | - | + | - | + | - | + | O |
Moraxella | R | - | + | + | + | - | ||
Brucella | ||||||||
Bordetella | ||||||||
Chromobacterium lividum | R | + | + | - | + | + | + | O |
Alcahsenes | R | + | + | - | + | + | - | - |
Flavobacterium | R | - | + | - | + | + | + | O |
Pseudomonas | R | + | + | + | + | + | + | O |
Actinobacillus | R | - | + | + | + | + | + | F |
Pasteurella | ||||||||
Necromonas | ||||||||
Cardiobacterium | R | - | + | + | - | + | + | F |
Chromobacterium violaceum | ||||||||
Beneckea | R | + | + | + | + | + | + | F |
Vibrio | ||||||||
Plesiomonas | ||||||||
Aeromonas | ||||||||
腸内細菌 | R | D | + | + | + | - | + | F |
Haemophilus | R | - | + | + | D | - | D | NT |
Eikenella | R | - | -* | + | - | + | - | - |
Campylobacter | R | + | -+1 | - | D | + | - | - |
Streptobacillus+2 | R | - | + | + | - | - | + | F |
マイコプラズマ | ||||||||
*1:Peptococcus, Peptostreptococus(あるいは Leuconostoc) *2:あるいはActinomyces odontolyticus D:その属の菌種によって反応が異なる。 d: 菌種によって反応が異なる。 F:発酵 O:酸化 W:弱反応 ・:不明 NT:テストできない <+>:芽胞非形成筋もある C:球菌 R:桿菌 ・: 不明 *: 空気中では発育せず。空気CO2で発育。+1: 好気的または嫌気的には発育せず。5-6%O2中で発育。+2: あるいはShigella dysenteriae 1 |
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