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  2. Gram-negative bacteria - Wikipedia

    en.wikipedia.org/wiki/Gram-negative_bacteria

    Gram-negative bacteria are bacteria that, unlike gram-positive bacteria, do not retain the crystal violet stain used in the Gram staining method of bacterial differentiation. [1] Their defining characteristic is their cell envelope, which consists of a thin peptidoglycan cell wall sandwiched between an inner (cytoplasmic) membrane and an outer ...

  3. Klebsiella aerogenes - Wikipedia

    en.wikipedia.org/wiki/Klebsiella_aerogenes

    Klebsiella aerogenes, [2] previously known as Enterobacter aerogenes, is a Gram-negative, oxidase -negative, catalase -positive, citrate -positive, indole -negative, rod-shaped bacterium. [3] Capable of motility via peritrichous flagella, [4] the bacterium is approximately 1–3 microns in length. Klebsiella aerogenes is a nosocomial ...

  4. Klebsiella pneumoniae - Wikipedia

    en.wikipedia.org/wiki/Klebsiella_pneumoniae

    Klebsiella pneumoniae is a Gram-negative, non-motile, encapsulated, lactose - fermenting, facultative anaerobic, rod-shaped bacterium. It appears as a mucoid lactose fermenter on MacConkey agar. Although found in the normal flora of the mouth, skin, and intestines, [1] it can cause destructive changes to human and animal lungs if aspirated ...

  5. Haemophilus influenzae - Wikipedia

    en.wikipedia.org/wiki/Haemophilus_influenzae

    Haemophilus influenzae. Haemophilus influenzae (formerly called Pfeiffer's bacillus or Bacillus influenzae) is a Gram-negative, non-motile, coccobacillary, facultatively anaerobic, capnophilic pathogenic bacterium of the family Pasteurellaceae. The bacteria are mesophilic and grow best at temperatures between 35 and 37 °C.

  6. Morganella morganii - Wikipedia

    en.wikipedia.org/wiki/Morganella_morganii

    Yale, 1939[1] Morganella morganii is a species of Gram-negative bacteria. [2] It has a commensal relationship within the intestinal tracts of humans, mammals, and reptiles as normal flora. [2] Although M. morganii has a wide distribution, it is considered an uncommon cause of community-acquired infection, and it is most often encountered in ...

  7. Capnocytophaga canimorsus - Wikipedia

    en.wikipedia.org/wiki/Capnocytophaga_canimorsus

    Capnocytophaga canimorsus. Brenner et al. 1989. Capnocytophaga canimorsus is a fastidious, slow-growing, Gram-negative rod of the genus Capnocytophaga. [1][2] It is a commensal bacterium in the normal gingival microbiota of canine and feline species, but can cause illness in humans. Transmission may occur through bites, licks, or even close ...

  8. Proteus mirabilis - Wikipedia

    en.wikipedia.org/wiki/Proteus_mirabilis

    Proteus mirabilis is a Gram-negative, facultatively anaerobic, rod-shaped bacterium. It shows swarming motility and urease activity. P. mirabilis causes 90% of all Proteus infections in humans. It is widely distributed in soil and water. [1] Proteus mirabilis can migrate across the surface of solid media or devices using a type of cooperative ...

  9. Serratia marcescens - Wikipedia

    en.wikipedia.org/wiki/Serratia_marcescens

    Serratia marcescens (/ səˈreɪʃiə mɑːrˈsɛsɪnz /) [3][failed verification] is a species of rod-shaped, Gram-negative bacteria in the family Yersiniaceae. It is a facultative anaerobe and an opportunistic pathogen in humans. It was discovered in 1819 by Bartolomeo Bizio in Padua, Italy. [4] S. marcescens is commonly involved in hospital ...