head picture

PHOTO GALLERY OF BACTERIA
www.bacteriainphotos.com
Version 1.2 (2014)
PLEASE READ:
TERMS OF USE

GRAM-POSITIVE BACTERIA
GRAM-NEGATIVE BACTERIA
COCCI
RODS
ACID FAST
BACTERIA
COCCI
SPIROCHETES
SPIRILLI
RODS

GRAM-POSITIVE BACTERIA

GRAM-POSITIVE COCCI

 
Gram-positive cocci

Staphylococcus

staph aureus
Gram stain: Gram-positive
Microscopic appearance: cocci in grape-like clusters
Oxygen relationship: facultatively anaerobic bacteria
Motility: nonmotile
Catalase test: catalase-positive
Oxidase test: negative*
Spores: non-spore forming
* Some species (non-human isolates) are positive

Staphylococcus aureus

  • Beta-hemolysis on media with blood (sheep, horse)
  • Yellow-pigmented colonies
  • NaCl tolerant (7.5%), mannitol fermentation
  • Production of coagulase (free and cell-bound coagulase)
  • Lithium chloride and potassium tellurite tolerant
  • Lecithinase production and lipase activity
Image of skull
Beta-hemolysis on media with blood
staphylococcus aureus on blood agar

Beta hemolysis
Staphylococcus aureus

beta hemolysis

Staphylococcus aureus
Beta hemolysis on blood agar

Staphylococcus aureus
Beta hemolysis on blood agar

staphylococcus aureus

Staphylococcus aureus
Colonies on blood agar

staphylococcus aureus

Staphylococcus aureus
Beta hemolysis, weak pigmentation

Colonies of Staphylococcus aureus are usually yellow-pigmented and beta-hemolytic
(but not always!)
staph.albus

Staphylococcus aureus
non-pigmented colonies
weak hemolysis

Staphylococcus aureus white (nonpigmented) colonies

Staph. aureus
non-pigmented strain

Staphylococcus aureus yellow pigment

S.aureus
two shades of yellow...

staphyloxanthin

Staphylococcus aureus
staphyloxanthin

Yellow colonies (staphyloxanthin)
golden staphylococcus on petri dish

Staphylococcus aureus
yellow colonies on TSA

s.aureus on brain heart agar

Staphylococcus aureus
on Brain Heart Infusion Agar

pigment in S.aureus

Staphylococcus aureus
on Tryptic Soy Agar

Staphylococcus aureus on chocolate agar

Staphylococcus aureus
Chocolate Agar

Staph on Schaedler (Schoedler) agar

Staphylococcus aureus
on Schaedler Agar

aureus beta bemolysis

Staphylococcus aureus
Beta-hemolytic colonies

Beta and gamma hemolysis on blood agar

Staphylococcus aureus
on Tryptic Soy Agar

staphylococci on chocolate agar

Staphylococcus aureus and
Staphylococcus epidermidis on Chocolate Agar

positive catalase test

Catalase test

baird parker agar and staphylococcus aureus

Staphylococcus aureus
on Baird Parker Agar

baird parker agar

Staphylococcus aureus
and S.epidermidis
Baird Parker Agar

staphylococcus aureus on baird parker agar.jpg

Colonies of S.aureus
lecithinase +, lipase +

staphylococcus on mannitol salt agar

Staphylococcus aureus
and S.epidermidis
Mannitol Salt Agar

Staphylococcus on mannitol salt agar

Staphylococcus aureus
Mannitol Salt Agar
Mannitol +

Methicilin Resistant S.aureus
MRSA
MRSA

MRSA Staphylococcus aureus
on Brilliance MRSA Chromogenic Agar

MRSA bacteria

Staphylococcus aureus
ORSAB

staphylococcus aureus susceptibility testing

The disc diffusion testing

staphylococcus aureus on CAP

S.aureus and E.faecalis on CAP agar

staph colony

S.aureus colony

Clumping factor
(Bound coagulase)
Decapsulation
test
Biofilm
formation
Susceptibility to
antibiotics
S.aureus
and penicillin (it saved millions...)
80.000.000??
200.000.000??
bound coagulase (latex agglutination)

Bound coagulase
(clumping factor)

Decapsulation test

Hyaluronidase

bacterial biofilm

Staphylococcus aureus
biofilm formation

Streptomyces on agar plate

The disc diffusion testing

Alexander Fleming

Staphylococcus aureus
and discovery of penicillin

Images of Staphylococcus aureus
images of staph aureus images of staph aureus 1 images of staph aureus 2 images of staph aureus 3 images of staph aureus 4 images of staph aureus 5 images of staph aureus 6 images of staph aureus 7
images of staph aureus 8 images of staph aureus 9 images of staph aureus 10 images of staph aureus 11 images of staph aureus 12 images of staph aureus 13 images of staph aureus 14
Wikipedia links Other links
Antibiotic Treatment
Should be always guided by in vitro susceptibility tests!
Selection of appropriate antibiotics depends on diagnosis!
Penicillins Cephalosporins Lincosamides Alternatives
Glycopeptides Sulfonamides Lipopeptides Oxazolidonones
Tetracyclines Lincosamides Streptogramins Rifamycins
  • rifampicin (+ e.g., doxycycline)
    • Rifadin
    • Rimactane
termsofuse
Useful links

Staphylococcus epidermidis

  • Gamma-hemolysis on media with blood (sheep, horse)
  • White colonies
  • NaCl tolerant (7.5%), doesn't ferment mannitol
  • Coagulase negative
  • Lecithinase, lipase negative
Staphy.epidermidis colony

Staphylococcus epidermidis
on Tryptic Soy Agar

staphylococcus epidermidis on TSA

Staphylococcus epidermidis

staphylococcus epidermidis colonies

Staphylococcus epidermidison
blood agar

staphylococcus epidermidis on blood agar

Staphylococcus epidermidis
colonies on blood agar

Staphy.epidermidis on blood agar

Staphylococcus epidermidis on CAP agar

Staphylococcus epidermidis colony on mannitol salt

Staphylococcus epidermidis
and Staphylococcus aureus

S.epidermidis,S.aureus, E.faecalis

S.epidermidis, S.aureus, E.faecalis on Tryptic Soy Agar

Staphylococcus epidermidis colony morphology

Staphylococcus epidermidis on Tryptic Soy Agar

Wikipedia links Other links

Staphylococcus sp. micrographs

Staphylococcus and Klebsiella

Staphylococcus aureus
and Klebsiella pneumoniae (Gram stain)

S.aureus micrograph (Gram)

Staphylococcus aureus micrograph
(Gram stain)

Staph micrograph

Staphylococcus aureus
Gram stain

staphylococcus Ziehl-Neelsen stain

Staphylococcus aureus Ziehl-Neelsen stain

Staphylococcus aureus SEM micrograph

Staphylococcus aureus
SEM micrograph

Staphylococcus aureus SEM micrograph

Staphylococcus aureus
SEM

Staphylococcus micrograph

Staphylococcus aureus
SEM micrograph

MRSA micrograph

Staphylococcus aureus
MRSA

Staphylococcus aureus MRSA

MRSA micrograph
methicillin-resistant Staphylococcus aureus

Gram-positive cocci
Three-dimensional (3D) computer-generated images
Staphylococcus aureus 3D

Image of MRSA

MRSA Staphylococcus

Staphylococcus
MRSA

VRSA (Vancomycin-resistant S.aureus)

Vancomycin-resistant
Staphylococcus aureus

streptococcus image

Streptococcus

Gram stain: Gram-positive
Microscopic appearance: cocci in chains (liquid media)
or pairs
Oxygen relationship: facultatively anaerobic bacteria
Motility: nonmotile
Catalase test: catalase-negative
Oxidase test: negative
Spores: non-spore forming

ALPHA-HEMOLYTIC STREPTOCOCCI
VIRIDANS STREPTOCOCCI

  • Mitis Group: e.g. S.mitis, S.oralis, S.sanguis (part of the normal dental plaque flora)
  • Anginosus Group: e.g.S.anginosus, S.constellatus, S.intermedius (oral, genitourinary flora, gastrointestinal tract); can be beta-hemolytic
  • Mutans Group: e.g.S.mutans (associated with dental caries); some strains can be beta-hemolytic
  • Salivarius Group: e.g.S.salivarius, S.vestibularis (oral cavity)
  • Bovis Group: e.g.S.bovis
  • Clinical significance: some of them can be the causative agents of subacute endocarditis, abscesses and infections in neutropenic patients
alpha and gamma hemolysis on blood agar

Alpha and gamma
hemolysis

throat swab

Alpha-hemolytic streptococci
throat swab

alfa hemolytic streptococci.jpg

Viridans streptococci

viridans streptococci

Viridans streptococci

optochin resistant alfa-streptococci

Streptococcus spp.
viridans streptococci
optochin resistant

streptococcus anginosus
Streptococcus anginosus
on BAP
streptococcus mitis
Streptococcus mitis
blood culture
streptococcus mutans micrograph
Streptococcus mutans
viridans streptococci micrograph
Viridans streptococci
blood culture specimen
Antibiotic Treatment
Should be always guided by in vitro susceptibility tests!
Selection of appropriate antibiotics depends on diagnosis!
Penicillins Cephalosporins Glycopeptides Alternatives

PNEUMOCOCCUS

  • Oropharyngeal carriage of pneumococci is common
  • An important agent of community-acquired pneumonia
  • Otitis media, sinusitis, meningitis, endocarditis
  • Require elevated CO2 concentrations (incubation in an atmosphere containing 5% - 10% CO2)
  • Sensitive to optochin
  • Soluble in bile salts
  • Positive Quellung test
streptococcus pneumoniae


Streptococcus pneumoniae

Image of skull
Streptococcus pneumoniae

Streptococcus pneumoniae
on blood agar

Streptococcus pneumoniae

Streptococcus pneumoniae
depressed centers of colonies

streptococcus pneumoniae

Streptococcus pneumoniae
virulent strain

Streptococcus pneumoniae hemolysis on blood agar

Streptococcus pneumoniae
alpha-hemolysis under colonies

optochin test with pneumococcus

Streptococcus pneumoniae
avirulent strain

optochin test with pneumococcus

Streptococcus pneumoniae
optochin test
Comparision of virulent and avirulent strain

Bile solubility test

Streptococcus pneumoniae
bile solubility test

streptococcus pneumoniae in sputum(microscopy)

Streptococcus pneumoniae
in sputum (micrograph)

S.pneumoniae in CSF

Streptococcus pneumoniae
in cerebral spinal fluid

encapsulated pneumococcus
Virulent S.pneumoniae

Streptococcus pneumoniae
on Petri dish
virulent strain

Virulent pneumococci

Streptococcus pneumoniae
on blood agar
virulent strain

Virulent and avirulent pneumococci

Streptococcus pneumoniae
virulent and
avirulent strain

Avirulent pneumococci and Viridans streptococci

Streptococcus pneumoniae
avirulent strain and
viridans streptococci

Streptococcus pneumoniae 3D

Streptococcus pneumoniae
3D model

Wikipedia links Other links
Antibiotic Treatment
Should be always guided by in vitro susceptibility tests!
Selection of appropriate antibiotics depends on diagnosis!
Penicillins Cephalosporins Macrolides Alternatives
Cephalosporins Glycopeptides Alternatives

BETA-HEMOLYTIC STREPTOCOCCI OF GROUP A
Streptococcus pyogenes
GAS

  • Group A Lancefield antigen
  • PYRase positive
  • bacitracin susceptible
streptococcus pyogenes
Image of skull
Beta and gamma hemolysis on blood agar

Beta and gamma
hemolysis
(GAS = Group A Strep.)

GAS on Petri dish

Beta and gamma
hemolysis

Streptococcus pyogenes large colonies

Streptococcus pyogenes
on blood agar
large colonies

PYR test

Streptococcus pyogenes
PYRase positive

Beta and gamma hemolysis

Beta hemolysis
on sheep blood agar
(S.pyogenes)

Streptococcus pyogenes

Streptococcus pyogenes
beta hemolysis

Streptococcus pyogenes

Colonies of
Streptococcus pyogenes

GAS (Group A Streptococci)

Colonies of S.pyogenes
on blood agar

S.pyogenes

Beta hemolysis
Beta-hemolytic colonies of S.pyogenes

GAS positive PYR test

PYRase
(PYR test)

penicillin susceptible GAS

Sensitive to penicillin

agglutination of streptococci

Latex agglutination

streptococci latex agglutination

Group A Streptococcus
latex agglutination

Streptococcus pyogenes 3D

Streptococcus pyogenes
3D
computer-generated image

strep throat

Strep throat

Wikipedia links Other links
Antibiotic Treatment
Should be always guided by in vitro susceptibility tests!
Selection of appropriate antibiotics depends on diagnosis!
Penicillins Cephalosporins Macrolides
(patients allergic to penicillin)
Alternatives
  • Peroral cephalosporins (I, II)

BETA-HEMOLYTIC STREPTOCOCCI OF GROUP B
Streptococcus agalactiae
GBS

  • Group B Lancefield antigen
  • CAMP test positive
  • hydrolyze sodium hippurate
  • Often weaker (partial) beta-hemolysis
group B streptococcus
Image of skull
Group B streptococcus

Streptococcus agalactiae

Streptococcus agalactiae, group B

Streptococcus agalactiae

Streptococcus agalactiae

Streptococcus agalactiae
on blood agar

strep group A

Positive CAMP test

CAMP test and
reverse CAMP test

CAMP test

CAMP test
detail

CAMP test for identification of streptococcus agalactiae (GBA)

CAMP test
on Petri dish

latex aglutination of streptococci of group B

Latex agglutination
of GBS

biochemical tests for identification of streptococcus agalactiae (GBS)

Biochemical identification of
S.agalactiae

GBS 3D model

Streptococcus agalactiae
3D model

Wikipedia links Other links
Antibiotic Treatment
Should be always guided by in vitro susceptibility tests!
Selection of appropriate antibiotics depends on diagnosis!
Penicillins Cephalosporins Macrolides
(patients allergic to penicillin)
Alternatives
  • Peroral cephalosporins (I, II)

BETA-HEMOLYTIC STREPTOCOCCI OF GROUP C

streptococcus equi colonies
Streptococcus equi ssp. equi
on Petri dish
streptococcus equi
Streptococcus equi ssp. equi
colonies on blood agar
streptococcus zooepidemicus
Streptococcus zooepidemicus on blood agar
beta hemolysis

Streptococcus equi ssp.
equi on blood agar

hyaluronate
Streptococcus
zooepidemicus
on tryptic soy agar
streptococcus zooepidemicus and hyaluronate
Streptococcus
zooepidemicus
on brain heart agar

Streptococcus sp. micrographs

streptococcus GBS gram stain
Streptococcus agalactiae micrograph
streptococcus gram stained
Streptococcus sp.
Streptococcus pyogenes microscopy
Streptococcus pyogenes
Gram stain
streptococcus micrograph
Streptococcus sp.
Group C
streptococcus in blood culture
Streptococcus sp.

BETA-HEMOLYTIC STREPTOCOCCI OF GROUP F and G

Many images below will not work. How quickly and if/when we finish the rest depends on you.
Support us with the Facebook Like, give us a link from your web...
Your decision will determine if it's worth to continue and how this part of the internet will look tomorrow.
enterococcus image

Enterococcus

enterococcus
Gram stain: Gram-positive
Microscopic appearance: cocci or ovoid cocci in pairs, clusters or short chains (liquid media)
Oxygen relationship: facultatively anaerobic bacteria
Motility: nonmotile or motile
Catalase test: catalase-negative
Oxidase test: negative
Spores: non-spore forming
Enterococcus faecalis culture on Petri dish

Enterococcus faecalis

Enterococcus faecalis on agar plate

Enterococcus faecalis

Enterococcus faecalis on CLED

Enterococcus faecalis

Enterococcus on different cultivation media

Enterococcus faecalis

Enterococcus

Enterococcus

bile esculin agar

Enterococcus faecalis

Biochemical identification for Enterococcus

Enterococcus faecium

Enterococcus faecalis on bile esculin agar

Enterococcus faecalis

enterococcus and staphylococcus

Enterococcus faecalis and Staphylococcus aureus

Enterococcus faecium TSA

Enterococcus faecalis

E.faecalis in Petri dish

Enterococcus faecalis

Enterococcus faecalis gamma hemolysis

Enterococcus faecalis

Enterococcus faecalis on blood agar

Enterococcus faecalis
on blood agar

Enterococcus faeciumm

Enterococcus faecium

Biochemical identification for Enterococcus

Enterococcus

Enterococcus faecalis microscopy

Enterococcus faecalis
Gram stain

Enterococcus faecalis electron microscopy

Enterococcus faecalis
scanning electron micrograph
(SEM)

Useful links

GRAM-POSITIVE BACILLI (RODS)

 
Listeria image

Listeria

listeria
Gram stain: Gram-positive
Microscopic appearance: short rods (sometimes coccoid forms), single or in chains
Oxygen relationship: facultatively anaerobic bacteria
Motility: motile (at 20-25°C)*; peritrichous flagella
Catalase test: catalase-positive
Oxidase test: negative
Spores: non-spore forming
* optimal growth temperature at 30-37°C
Listeria monocytogenes is the causative agent of listeriosis
Image of skull
Listeria monocytogenes culture on blood agar

Listeria monocytogenes
on blood agar

Listeria monocytogenes hemolysis on blood agar

Listeria monocytogenes
on blood agar

Listeria monocytogenes susceptibility

Listeria monocytogenes

Listeria monocytogenes culture on blood agar

Listeria monocytogenes
on blood agar

Listeria monocytogenes on blood agar

Listeria monocytogenes
on blood agar

Listeria monocytogenes microscopic image

Listeria monocytogenes
Gram-stain

Listeria monocytogenes on blood agar

Listeria monocytogenes

Useful links
Corynebacterium image

Corynebacterium

corynebacterium
Gram stain: Gram-positive
Microscopic appearance: rods, often broader at one end
("club" shape), grouped together
in a characteristic way ("V", "palisades", "Chinese letters")
Oxygen relationship: facultatively anaerobic bacteria
Motility: nonmotile
Catalase test: catalase-positive
Oxidase test: negative
Spores: non-spore forming*
*metachromatic granules are often present.
Corynebacterium diphtheriae is the causative agent of diphtheria
Image of skull
Corynebacterium diphtheriae on agar plate

Corynebacterium diphtheriae

Corynebacterium diphtheriae colonies on agar plate

Corynebacterium diphtheriae

Corynebacterium diphtheriae on Tinsdale agar

Corynebacterium diphtheriae

Corynebacterium diphtheriae microscopy

Corynebacterium diphtheriae
Gram stain

Corynebacterium pseudotuberculosis

Corynebacterium pseudotuberculosis
on blood agar

Useful links
Bacillus image

Bacillus

 
Gram stain: Gram-positive
Microscopic appearance: rods in chains
Oxygen relationship: aerobic or facultatively anaerobic bacteria
Motility: motile (peritrichous flagella) or nonmotile (e.g., B.anthracis)
Catalase test: catalase-positive
Oxidase test: negative
Spores: spore forming (endospores)
Bacillus anthracis is the causative agent of anthrax
Image of skull with biohazard
bacillus

Bacillus cereus

Bacillus cereus

Bacillus cereus
on blood agar

bacillus subtilis on agar

Bacillus subtilis

bacillus subtilis colonies on tryptic soy agar

Bacillus subtilis

bacillus subtilis

Bacillus subtilis

cause of anthrax

Bacillus anthracis
causative agent of anthrax

b.anthracis on petri dish

Bacillus anthracis

bacillus anthracis

Bacillus anthracis
on blood agar

bacillus anthracis

Bacillus anthracis
colonies on blood agar

bacillus anthracis virulent strain

Bacillus anthracis
capsule production

bacillus anthracis appearance

Bacillus anthracis

Bacillus sp. colony on Mueller-Hinton agar

Bacillus sp.
colonies on Mueller-Hinton agar

Bacillus mycoides

Bacillus mycoides

bacillus mycoides

Bacillus mycoides
growth on agar

serratia and bacillus mycoides

Serratia marcescens
and Bacillus mycoides

Bacillus mycoides microscopy

Bacillus mycoides
Gram stain

Gram positive sporulating bacterium microscopy

Gram-positive
sporulating bacterium

bacillus anthracis micrograph.jpg

Bacillus anthracis
micrograph

Escherichia coli and Bacillus sp. microscopy

Escherichia coli
and
Bacillus sp.
Gram stain

Useful links
Lactobacillus image

Lactobacillus

Gram stain: Gram-positive
Microscopic appearance: rods in chains or palisades
Oxygen relationship: facultatively anaerobic or anaerobic bacteria
Motility: nonmotile (most of them)
Catalase test: negative
Oxidase test: negative
Spores: non-spore forming
lactobacilli in vagina


lactobacilli in vaginal smear


lactobacillus in hemoculture microscopy


lactobacilli in hemoculture


Useful links
Streptomyces image

Streptomyces

streptomycetes image
Gram stain: Gram-positive
Microscopic appearance: rods; form substrate and aerial mycelium
Oxygen relationship: aerobic bacteria
Motility: nonmotile
Catalase test: positive
Oxidase test: negative
Spores: spore forming (aerial mycelium)
gram negative rods

Streptomyces spp.

Streptomyces

Streptomyces spp.

Streptomyces coelicolor on Mueller-Hinton agar

Streptomyces coelicolor
on Mueller-Hinton agar

Streptomyces coelicolor A3(2) colony on agar

Streptomyces coelicolor
colony on Mueller-Hinton agar

Streptomyces on agar plate

Streptomyces sp.
on agar plate

Aerial mycelium, formation of exospores

Streptomyces sp.

new antibiotics

Streptomyces sp.

streptomyces on agar

Streptomyces sp.

streptomyces growth on agar

Streptomyces sp.

sporofores

Streptomyces sp.

Useful links
Clostridium image

Clostridium

Gram stain: Gram-positive (young cultures), often Gram-variable
Microscopic appearance: rods (in pairs or chains)
Oxygen relationship: anaerobic bacteria
Motility: usually motile
(peritrichous flagella)
Catalase test: negative
Oxidase test: negative
Spores: spore forming (endospores)
Image of skull
clostridium sordellii

Clostridium sordellii

clostridium

Clostridium sordellii
colonies

clostridium colony

Clostridium perfringens

clostridium perfringens

Clostridium perfringens

clostridium perfringens under microscope

Clostridium perfringens

clostridium sordellii under microscope

Clostridium sordellii
micrograph

clostridium ramosum micrograph

Clostridium ramosum

Useful links

GRAM-NEGATIVE BACTERIA

GRAM-NEGATIVE COCCI

 
neisseria image

Neisseria

neisseria
Gram stain: Gram-negative
Microscopic appearance: diplococci, cocci
Oxygen relationship: aerobic bacteria
Motility: nonmotile
Catalase test: positive
Oxidase test: positive
Spores: non-spore forming

Neisseria meningitidis

  • growth on blood agar
  • CO2 enhances growth, but is not required
  • acid production from glucose and maltose
Image of skull

Neisseria gonorrhoeae

  • fastidious in its growth requirements
  • special media for cultivation
  • most strains require an atmosphere containing CO2
  • colonies are well developed after 48 hr.
  • four colony types have been recognized (T1-T4)
  • acid production from glucose (maltose negat.)
Neisseria meningitidis

Colonies of
Neisseria meningitidis

Neisseria meningitidis on New York City medium

Neisseria meningitidis
on New York City Agar

Neisseria gonorrhoeae colonies

Neisseria gonorrhoeae

Neisseria gonorrhoeae on New York City medium

Neisseria gonorrhoeae
on New York City Agar

Culture of Neisseria meningitidis on agar plate

Colonies of
Neisseria meningitidis
Oxidase test +

Neisseria meningitidis biochemical identification

Neisseria meningitidis
Biochemical identification

Neisseria gonorrhoeae photos

Neisseria gonorrhoeae

Neisseria gonorrhoeae biochemical identification

Neisseria gonorrhoeae

culture of Neisseria meningitidis on agar plate

Neisseria meningitidis
micrograph

Neisseria meningitidis oxidase test

Neisseria meningitidis
Oxidase test

Neisseria gonorrhoeae microscopy

Neisseria gonorrhoeae

moraxella image

Moraxella (Branhamella)

moraxella
Gram stain: Gram-negative
Microscopic appearance: diplococci, cocci, cocobacilli
Oxygen relationship: aerobic bacteria*
Motility: nonmotile
Catalase test: positive
Oxidase test: positive
Spores: non-spore forming
* some facultatively anaerobic
Moraxella catarrhalis in Petri dish

Moraxella catarrhalis

Moraxella catarrhalis

Moraxella catarrhalis
on blood agar

Moraxella catarrhalis

Moraxella catarrhalis
on blood agar

Moraxella catarrhalis oxidase test

Moraxella catarrhalis

Moraxella catarrhalis microscopy

Moraxella catarrhalis
Gram stain

Useful links
bordetella image

Bordetella

bordetella
Gram stain: Gram-negative
Microscopic appearance: small rods or cocobacilli
Oxygen relationship: aerobic bacteria
Motility: nonmotile or motile
Catalase test: positive
Oxidase test: positive
Spores: non-spore forming
Image of skull
bordetella pertussis culture on charcoal agar

Bordetella pertussis
on charcoal agar

bordetella pertussis on charcoal agar

Bordetella pertussis
on charcoal agar

bordetella pertussis micrograph

Bordetella pertussis

haemophilus image

Haemophilus

haemophilus
Gram stain: Gram-negative
Microscopic appearance: small pleomorphic rods
Oxygen relationship: facultatively anaerobic bacteria
Motility: nonmotile
Catalase test: variable
Oxidase test: variable
Spores: non-spore forming
Image of skull
Haemophilus influenzae on agar

Haemophilus influenzae
on chocolate agar

Haemophilus influenzae virulent strain

Haemophilus influenzae
on chocolate agar

Haemophilus influenzae

Haemophilus influenzae
on chocolate agar

Haemophilus satellite phenomenon

Haemophilus influenzae
on blood agar
Satellite test

Haemophilus influenzae satelliting phenomenon

Haemophilus influenzae
Satellite test

Haemophilus influenzae factors

Haemophilus influenzae
X + V factor

Haemophilus influenzae micrograph

Haemophilus influenzae
micrograph
Pleomorphic G- bacilli

pseudomonas image

Pseudomonas

Gram stain: Gram-negative
Microscopic appearance: rods
Oxygen relationship: aerobic bacteria
Motility: motile (rarely nonmotile)
Catalase test: positive
Oxidase test: positive or negative
Spores: non-spore forming
pseudomonas aeruginosa colonies on agar

Pseudomonas aeruginosa
on Tryptic Soy Agar

pseudomonas aeruginosa pigmentation

Pseudomonas aeruginosa

Pseudomonas aeruginosa and Staphylococcus aureus on TSA

Pseudomonas aeruginosa

beta-hemolytic pseudomonas aeruginosa

Pseudomonas aeruginosa
on blood agar

pseudomonas staphylococcus tsa

Colony of
Pseudomonas aeruginosa
and Staphylococcus aureus

pseudomonas and enterococcus

Pseudomonas aeruginosa and
Enterococcus faecalis

pseudomonas aeruginosa oxidase test

Pseudomonas aeruginosa
on Tryptic Soy Agar

pseudomonas aeruginosa pigment

Pseudomonas aeruginosa
on Tryptic Soy Agar

P.aeruginosa, E.faecalis, S.aureus

Pseudomonas aeruginosa,
Staphylococcus aureus,
Enterococcus faecalis

pseudomonas aeruginosa colony on TSA

Pseudomonas aeruginosa
and Staphylococcus aureus
on TSA

Pseudomonas aeruginosa

Pseudomonas aeruginosa

p.aeruginosa and s.aureus colonies

Pseudomonas aeruginosa
colonies on blood agar

pseudomonas aeruginosa on cetrimide agar

Pseudomonas aeruginosa
on cetrimide agar

Pseudomonas sp

Pseudomonas sp.

pseudomonas aeruginosa SEM

Pseudomonas aeruginosa

pseudomonas aeruginosa hemolysis on blood agar

Staphylococcus spp.
and P.aeruginosa on blood agar

pseudomonas aeruginosa SEM micrograph

Pseudomonas aeruginosa

enterobacteriaceae

Enterobacteriaceae

enteric bacteria
Gram stain: Gram-negative
Microscopic appearance: rods
Oxygen relationship: facultatively anaerobic bacteria
Motility: motile (peritrichous flagella) or nonmotile
Catalase test: positive
Oxidase test: negative (with exception of Plesiomonas spp.)
Spores: non-spore forming

Escherichia coli

Image of skull
Escherichia coli on MacConkey

Escherichia coli
on MacConkey agar

E.coli on cled

Escherichia coli
on CLED agar

Escherichia coli and salmonella on cled

Escherichia coli
on CLED agar

Escherichia coli 2

Escherichia coli
on Brain Heart Infusion Agar

Escherichia coli on Mueller Hinton agar

Escherichia coli
on Tryptic Soy Agar

Escherichia coli on MacConkey

Escherichia coli
on MacConkey agar

Escherichia coli

Escherichia coli
on blood agar

enteric bacteria

Escherichia coli, Klebsiella pneumoniae and Salmonella enterica
on blood agar

Escherichia coli on MacConkey agar

Escherichia coli
on MacConkey agar

Escherichia coli on on Endo agar

Escherichia coli
on Endo agar

Escherichia coli microscopy

Escherichia coli
Gram stain

Escherichia coli  electron microscopy

Escherichia coli
scanning electron micrograph
(SEM)

Escherichia coli SEM micrograph

Escherichia coli
SEM

Klebsiella pneumoniae

klebsiella pneumoniae biochemical tests

Klebsiella pneumoniae

klebsiella pneumoniae on MacConkey agar

Klebsiella pneumoniae
on MacConkey

klebsiella pneumoniae appearance on CLED agar

Klebsiella pneumoniae
on CLED

klebsiella pneumoniae appearance on Endo agar

Klebsiella pneumoniae
on Endo

klebsiella pneumoniae on MacConkey

Klebsiella pneumoniae
on MacConkey agar

Klebsiella pneumoniae on Mac Conkey agar

K.pneumoniae colonies
on MacConkey

klebsiella pneumoniae

Klebsiella pneumoniae
on Endo agar

klebsiella pneumoniae on desoxycholate citrate agar

Klebsiella pneumoniae
on desoxycholate-citrate agar

Klebsiella pneumoniae and Staphylococcus aureus microscopy

Klebsiella pneumoniae
and
Staphylococcus aureus
Gram stain

Salmonella enterica

Image of skull
Salmonella on XLD agar

Salmonella and E.coli
on XLD

MacConkey agar

Salmonella, E.coli, Klebsiella
on MacConkey

tryptic soy agar

Salmonella

Salmonella on XLD

Salmonella
on XLD

salmonella picture

Salmonella enterica
on Deoxycholate Citrate Agar

Salmonella

Salmonella enterica
on blood agar

salmonella and klebsiella colony

Salmonella enterica and Klebsiella pneumoniae

Salmonella

Salmonella and E.coli on MacConkey

Salmonella and E.coli colonies on XLD

Salmonella enterica
and E.coli on XLD

Salmonella colonies on agar plate

Salmonella enterica
on MacConkey

salmonella picture

Salmonella enterica
SEM

salmonella typhimurium picture

Salmonella enterica
SEM

Serratia marcescens

serratia on CLED

Serratia marcescens
CLED

serratia and red pigment prodigiosin

Serratia marcescens prodigiosin

Serratia marcescens

Serratia marcescens

serratia marcescens on MacConkey agar

Serratia marcescens
MacConkey

serratia marcescens on MacConkey agar and ENDO

Serratia marcescens
on ENDO and MacConkey

Citrobacter

Enterobacter

Citrobacter freundii

Citrobacter freundii
blood agar

Citrobacter freundii

Citrobacter freundii

Enterobacter sakazakii on Endo

Enterobacter sakazakii
on Endo agar

Enterobacter cloacae microscopy

Enterobacter cloacae
Gram stain

Proteus

proteus mirabilis on blood agar

Proteus mirabilis
blood agar

proteus vulgaris swarming

Proteus vulgaris
blood agar

proteus vulgaris swarming

Proteus mirabilis
Tryptic Soy Agar

proteus mirabilis swarming

Proteus mirabilis
blood agar

proteus mirabilis on CLED

Proteus mirabilis
CLED

Providencia rettgeri on Endo agar

Providencia rettgeri
on Endo agar

Morganella morganii

Morganella morganii
on blood agar

yersinia image

Yersinia

yersinia
Gram stain: Gram-negative
Microscopic appearance: rods or cocobacilli
Oxygen relationship: facultatively anaerobic bacteria
Motility: motile or nonmotile at 30°C
nonmotile at 37°C
Catalase test: positive
Oxidase test: negative
Spores: non-spore forming
Yersinia pestis is the causative agent of plague
Image of skull
Yersinia pestis colonies on blood agar

Yersinia pestis on blood agar

Yersinia pestis colonies on CIN agar

Yersinia pestis on CIN agar

Yersinia pestis colonies

Yersinia pestis colonies on blood agar

Yersinia pestis colony morphology

Yersinia pestis colonies on blood agar

Yersinia pestis colonies

Yersinia pestis
colonies on blood agar

Yersinia pestis CIN agar

Yersinia pestis
CIN agar

Yersinia pestis image

Yersinia pestis

Yersinia pestis sem

Yersinia pestis
SEM

Yersinia pestis micrograph

Yersinia pestis

diagram with plague cycles

Plague cycles
in the USA

distribution of plague in the USA

Distribution of plague
in the USA

Campylobacter

Gram stain: Gram-negative
Microscopic appearance: spirilli, sometimes coccoid bodies
Oxygen relationship: microaerobic (O2 concentration 3 - 15%,
CO2 3 - 5%)
some can grow aerobically or anaerobically
Motility: motile
Catalase test: positive
Oxidase test: positive
Spores: non-spore forming
Campylobacter jejuni with microscopy

Campylobacter jejuni

Campylobacter jejuni electron microscopy

Campylobacter jejuni
scanning electron micrograph
(SEM)

Campylobacter jejuni image

Campylobacter jejuni
scanning electron micrograph
(SEM)

borrelia image

Borrelia

Gram stain: Not classified as either Gram-positive or Gram-negative
(the cells stain a weak Gram-negative)
Microscopic appearance: Spirochetes
Oxygen relationship: microaerobic
Motility: motile
Catalase test: -
Oxidase test: -
Spores: non-spore forming
Borrelia burgdorferi is the causative agent of Lyme disease
Borrelia burgdorferi  electron microscopy

Borrelia burgdorferi
scanning electron micrograph
SEM

Borrelia

Borrelia burgdorferi
SEM

Borrelia burgdorferi microscopy image

Borrelia burgdorferi
SEM

Lyme disease

Borrelia burgdorferi:
Lyme disease

borrelia darkfield microscopy

Borrelia burgdorferi:
darkfield microscopy

tick Ixodes pacificus

Ticks as vectors for
Borrelia burgdorferi

erythema migrans image

Erythema migrans

ACID-FAST BACTERIA

mycobacteria

Mycobacterium

Mycobacterium
Gram stain: - (acid - fast)
Microscopic appearance: rods; sometimes cocobacilli or filaments
Oxygen relationship: aerobes
Motility: nonmotile
Catalase test: positive
Oxidase test: negative
Spores: non-spore forming
Mycobacterium tuberculosis is the causative agent of Tuberculosis
Mycobacterium leprae is the causative agent of Leprosy
Image of skull
Mycobacterium tuberculosis

Mycobacterium tuberculosis
on L÷wenstein-Jensen medium

fast growing mycobacterium

Mycobacterium sp.
on Ogawa medium

Mycobacterium fortuitum

Mycobacterium fortuitum
on blood agar

mycobacterium vaccae

Mycobacterium vaccae

fast growing mycobacterium

Mycobacterium sp.

Mycobacterium growth on agar.jpg

Mycobacterium sp.
on M2 agar

Mycobacterium colony on agar.jpg

Mycobacterium sp.
colony on M2 agar

Mycobacterium sp. and Staphylococcus aureus microscopy

Mycobacterium sp.
and
Staphylococcus aureus
Ziehl-Neelsen stain

OTHER BACTERIA

Stenotrophomonas maltophilia

Stenotrophomonas maltophilia
on Mueller-Hinton agar

Chryseobacterium indologenes

Chryseobacterium indologenes
on Mueller-Hinton agar

erysipelothrix rhusiopathiae on blood agar

Erysipelothrix rhusiopathiae
on Columbia horse blood agar

chromobacterium and erwinia

Chromobacterium violaceum and
Erwinia carotovora

Vibrio parahaemolyticus on T.C.B.S. agar

Vibrio parahaemolyticus
on TCBS agar

bacteria in photos.com Pasteurella multocida on blood agar

Pasteurella multocida
on blood agar

Chryseobacterium indologenes and actinomycete

Chryseobacterium indologenes
and an actinomycete
on Mueller-Hinton agar

Micrococcus luteus on TSA

Micrococcus luteus
on tryptic soy agar

aeromonas hydrophila CLED

Aeromonas hydrophila
on CLED agar

colonies of a gram-negative bacterium

Mixture of bacteria
on agar plate

colony morphology

Bacterial colonies

bacteria pigment production

Bacteria and pigment production

bacteria:hemolysis on blood agar

Bacterial colonies and hemolysis

bacteria microscopy

Bacteria: Light microscopy

bacteria

Bacteria....

bacteria images with description

Bacteria images

images of bacteria

Colonies of various bacteria

bacteria photos

Bacteria photos

PICTURE OF THE MONTH
Bacterium of the month on www.bacteriainphotos.com
BACTERIA 2013
DECEMBER

DISK DIFFUSION METHOD
FOR TESTING OF ANTIBIOTIC SUSCEPTIBILITY OF BACTERIA

gram negative rods

Susceptibility testing of bacteria

The disc diffusion test

The disc diffusion test
(Serratia marcescens):
antibiotic resistance

The disc diffusion method

 
animation bactasartism
arrows

LIGHT MICROSCOPY

Lida and microscope
pneumococcus
haemophilus influenzae
Capnocytophaga microscopy

Capnocytophaga sp.
Gram stain

bacteroides fragilis

Bacteroides fragilis

Peptostreptococcus anaerobius

Peptostreptococcus
anaerobius

fusobacterium

Fusobacterium sp.

prevotella

Prevotella sp.

  staphylococcus aureus animation

ELECTRON MICROSCOPY

quiz on bacteria

MEDICALLY IMPORTANT BACTERIA

GRAM-POSITIVE BACTERIA

GRAM-NEGATIVE BACTERIA

ACID-FAST BACTERIA

Other pictures you will find here: www.microbiologyinpictures.com

Counted since 7.6.2012
(bacteria live everywhere....)
free counters
down picture
Terms of Use Privacy Policy Copyright © 2011 www.bacteriainphotos.com