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Acinetobacter baumannii
Aeromonas hydrophila
Alcaligenes faecalis
Avibacterium gallinarum
Bacillus amyloliquefaciens spores and
vegetative cells
Bacillus atrophaeus spores and vegetative
cells
Bacillus anthracis malachite-green stained,
central, non-deforming spores
Bacillus cereus
vegetative cells and spores
Bacillus firmus
vegetative cells (A) and spores (B)
Bacillus laterosporus
side, deforming spores
Bacillus licheniformis
vegetative cells and spores
Bacillus megaterium
(Gram-stained, old culture)
Bacillus pumilus vegetative cells and
central, nondeforming spores
Bacillus subtilis Gram staining
Bacillus thuringiensis cells by Gram staining
(left) and spores outside vegetative cells by
malachite-green staining (right)
Bordetella bronchiseptica
Brachyspira (Serpulina) hyodysenteriae
Citricoccus spp. Gram-positive cells
Citrobacter braakii
Clostridium perfringens (Gram staining)
Comamonas kerstersii (C. terrigena DNA
group 3)
Corynebacterium amycolatum,
Gram-positive stacked coccobacilli
Enterococcus faecalis
Enterococcus faecium
Enterococcus gallinarum
Erysipelothrix rhusiopathiae
Escherichia coli
Fusobacterium necrophorum
Gallibacterium genomospecies 3
Gram-negative coccobacilli
Gemella haemolysans
Granulicatella (Abiotrophia) adiacens
(Streptococcus adjacens)
Geobacillus stearothermophilus
Gram-stained
Helicobacter pylori 7 days culture: young
spiral-shaped cells and old coccoid cells
Klebsiella pneumoniae subsp. pneumoniae
Kocuria rosea
Large, terminal, deforming spores
(
Bacillus spp.)
Lactobacillus acidophilus
Lactobacillus casei
Lactobacillus delbrueckii
Lactobacillus fermentum
Lactobacillus paracasei
Lactobacillus pentosus
Lactobacillus reuteri
Lactobacillus rhamnosus
Lactobacillus salivarius
Lactococcus garvieae
Lysinibacillus (Bacillus) sphaericus
Gram-stained cells
Lysinibacillus sphaericus sub-terminal
spores, swelling the vegetative cells.  
Malachite-green staining
Mannheimia (Pasteurella) haemolytica
Micrococcus luteus
Moraxella cuniculi
Morganella morganii
Mycobacterium avium
Ziehl-Neelsen staining
Mycobacterium bovis forming cords
Ziehl-Neelsen staining
Paenibacillus macerans terminal spores,
swelling the cells
Proteus hauseri
Pseudomonas aeruginosa
Pseudomonas fluorescens
Pseudomonas (Chriseomonas) luteola
Pseudomonas putida
Pseudomonas stutzeri
A: Salmonella Galinarum-Pullorum,
Gram-stained. B: same culture after group D
antiserum agglutination.
Serratia marcescens
Staphylococcus aureus
Staphylococcus chromogenes
Staphylococcus epidermidis
Staphylococcus intermedius
Staphylococcus lentus
Staphylococcus lugdunensis
Staphylococcus sciuri
Staphylococcus xylosus
Streptococcus agalactiae, Gram-positive
ovoid cells, long chains
Streptococcus canis
Streptococcus cristatus
Streptococcus gordonii
Streptococcus mutans
Streptococcus mitis
Streptococcus pluranimalium
Streptococcus porcorum
Streptococcus pyogenes
Streptococcus sanguinis
Vibrio metschnikovii Gram-negative curved
rods
Yersinia pseudotuberculosis Gram-negative
rods