Cross Index Cardiobacterium hominis
SuperSet Prokaryote, Eubacteria Facultatively Anaerobic Gram-Negative Rods Pasteurellaceae
Compare Enterobacteriaceae, Arsenophonus nasoniae, Buttiauxella agrestis, Cedecea, Citrobacter, Edwardsiella, Enterobacter, Erwinia, Escherichia, Ewingella americana, Hafnia alvei, Klebsiella, Kluyvera, Leclercia adecarboxylata, Leminorella, Moellerella wisconsensis, Morganella morganii, Obesumbacterium proteus, Pantoea, Pragia fontium Proteus, Providencia, Rahnella aquatilis, Salmonella, Serratia, Shigella, Tatumella plyseos, Xenorhabdus, Yersina, Yohenella regensburgei

Vibrionacae, Aeromonas, Enhydrobacter aerosaccus, Photobacterium, Plesiomonas shigelloides, Vibrio

Pasteurellaceae, Actinobacillus, Hemophilus, Pasteurella

Calymmatobacterium granulomatis, Cardiobacterium hominis, Chromobacterium, Eikenella corrodens, Gardnerella vaginalis, Streptobacillus moniliformis, Zymomonas
Contrast Archaea
Subset  

 

Morphology Cardiobacterium hominis
CELLULAR  
Staining Gram-negative, but retention of crystal violet may occur in the swollen ends or central portions of cells
Morphology Straight rods 0.5-0.75 um in diameter and 1.0-3.0 um in length, with rounded ends. Occasional long filaments, 7.0-35.0 um may occur. Pleomorphic. Cells are arranged singly, in pairs, in short chains and in rosette clusters.
Motility Nonmotile
Specialized structures  
Division  
COLONIAL  
Solid surface Colonies on blood agar are smooth, convex and opaque. No growth occurs on MacConkey agar
Liquid  

 

Growth Parameters Cardiobacterium hominis
PHYSIOLOGICAL  
Tropism Chemoorganotrophic
Oxygen Facultatively anerobic having a strictly fermentative type of metabolism
pH  
Temperature Optimum temperature, 30-37`C
Requirements Carbon dioxide is required by some strains on isolation. Aerobic growth is scant unless humidity is elevated. Growth in candle jars or under anaerobic conditions is not dependent on an elevated humidity.
Products Acid but not gas is produced from fructose, glucose, mannose, sorbitol and sucrose. Lactic acid is the major product of glucose fermentation; smaller amounts of pyruvate, formate and propionate are formed Small amounts of indole are formed. Nitrates are not reduced
Enzymes Oxidase-positive. Catalase-negative Urease-negative. Ornithine decarboxylase (ODC) negative
Unique features  
ENVIRONMENTAL  
Habitat Occur in nasal flora of humans
Lifestyle  
Pathogenicity isolated from the blood of humans with bacterial endocarditis
Distribution  

 

Genome Cardiobacterium hominis
G+C Mol % 59-60 (Tm)
   

 

Reference Cardiobacterium hominis
First citation Slotnick,L.J. and M. Dougherty (1964) Further characterization of an unclassified group of bacteria causing endocarditis in man: Cardiobacterium hominis gen. et sp. n. Antonie van Leeuwenhoek J. Microbiol. Serol. 30: 261-272
The Prokaryotes p
Bergey's Systematatic p 583 R. E. Weaver
Bergey's Determinative p 197
References