Lab 7: Pasteurella, Mannheimia, Bibersteinia, Ornithobacterium, Riemerella, Actinobacillus, Haemophilus, Histophilus, Avibacterium, Taylorella Flashcards
Genera within Pasteurellaceae family?
- Pasturella
- Mannheimia
- Bibersteinia
- Actinobacillus
- Haemophilus
- Avibacterium
- Histophilus
- Gallibacterium
other genera resembling pasteurellaceae?
- Ornithobacterium
- Reimerella
- Taylorella
general habitat of pasteurellaceae?
Mucous membranes
(respiratory tract, genitals, alimentary tract)
general morphology of pasteurellaceae?
0.5-2μm coccoid rods
general staining of pasteurellaceae?
- Gram - negative
- Bipolar staining
what is bipolar staining?
more intense staining in the middle of the bacteria
what is the general culture of pasteurellaceae?
- Fastidious (Yeast extract, blood, PH-sensitivity)
- aerobic - facultative anaerobic
general biochemistry for pasteurellaceae?
- oxidase +
- catalase +
- Fermentitative
- toxin production by some species
Pasteurellaceae antigens?
cell wall and capsule antigens
pasteurellaceae resistance?
Generally weak resistance
Pathogenicity of pasteurellace genera?
Facultative pathogens
habitat of pasteurella genera?
mucous membranes of the respitatory tract
pasteurella genus produces a capsule?
True
colony types of pasteurella?
M-S-R colonies
types of cyclotoxins produced by pasteurella?
P. multocida D - dermonecrotoxin
- causing damage to osteoblasts
- biochemical differenced between P. multocida spp.
P. multocida antigens?
- cell wall antigens
- 16 Heddleston system
- (11: namioka system)
- capsule antigens
- A,B,E,D,F
species of Pasteurella?
- P. Multocida A,D
- P. multocida D
- P. multocida B,E
- P. pneumotropica
- P. aerogenes
- P. canis, P. dagmatis, P. stomatis
- P. Caballi
Effects of P. multocida A,D
- Ruminant and swine pneumonia
- Rabbit septicaemia and pneumonia
- Fowl cholera
what are the effects of P. multocida D?
Atropic rhinitis of swine
what are the effects of P. multocida B,E?
Haemorrhagic septicaemia
Habitat of Mannheimia, Biebersteinia?
Mucous membranes (respiratory tract)
Mannheimia and Biber steinia cause ß haemolysis?
True
toxins produced by mannheimia and biersteinia?
leukotoxin production
- damage of macrophage and endothelial cells
antigens of mannheimia and biersteinia?
- call wall antigens cannot be used for diagnostics
- capsule
- M. haemolytica 12 types
- B. trehalosi 4 types
pathogenicity of mannheimia and Beibersteinia?
-
M. Haemolytica
- Pasteurellosis
- ruminant pneumonia
- Lamb septicaemia
- mastitis
- arthritis
- Pasteurellosis
-
B. Trehalosi
- acute systemic pasteurellosis
- feed-lot lambs
- acute systemic pasteurellosis
Actinobacilllus habitat?
Alimentary tract, respiratory and genital tract, mucous membranes
Species of Actinobacillus?
- A. lignieresii
- A. equuli
- A. suis
- A. seminis
- A. ureae
- A. Pleuropneumoniae
habitat of A. lignieresii?
cattle and sheep oral cavity, rumen and gut
morphology of A. lignieresii?
- 1 - 1.2μm rods
- filaments
- sulphur granules in lesions (like actinomycosis)
culture of A. lignieresii?
- aerobic, facultative anaerobic
- poor growth on nutrient agar
- sticks to the agar
Antigens of A. lignieressi?
Cell wall antigens
- 6 serogroups
pathogenicity of A. lignieressi?
cattle, sheep and swine actinobacillosis
- Wooden tongue
- granulocytomas
- pus containing small, hard yellow to white granules
A. equuli habitat?
horse and swine alimentary tract, tonsils, respiratory tract
A. equuli has filaments?
true
A. equuli cultures?
- large viscous colonies
- some strains can haemolyse
subspecies of A. equuli?
- A. equuli subsp. equuli
- A. equuli subsp. haemolyticus
both A. equuli subspecies cause which disease?
actinobacillosis
symptoms of actinobacillosis in the foal?
septicaemia, nephritis, pneumonia, arthritis
habitat of A. suis?
Swine mucous membranes
respiratory and genital tract
culture of A. suis?
- Blood agar
- ß hemolysis
pathogenicity of A. suis?
- Swine (grower/adult)
- pneumonia, septicaemia, metritis, abortion, arthritis
- Suckling piglet
- septicaemia
habitat of A. seminis?
mucous membrane of genital tract of rams
A. seminis culture?
10% CO2 blood agar
A. seminis pathogenicity?
facultative pathogenic
inflammation of the accessory glands
epidiymitis
abortion
habitat of A. ureae?
Human respiratory tract
habitat of A. pleuropneumoniae?
mucous membranes of the respiratory tract of swine
some strains of A. Pleuropneumoniae have fimbria?
true
culture for A. pleuropneumoniae?
- blood agar, chocolate agar with yeast extract
- ß hemolysis
biotypes of A. pleuropneumoniae?
- Byotype 1: V - factor demand
- satellitism, NAD, fresh yeast extract
- Byotype 2: V factor is not needed
what is factor V?
NAD
cytotoxins produced by A. pleuropneumoniae?
I - II - III - IV cytotoxins produced
- damage of macrophages and endothelial cells
how many serogroups of antigens does A. pleuropneumoniae have?
18 serotypes
what is the pathogenicity of A. pleuropneumoniae?
swine hemorrhagic - necrotic pleuropneumonia
habitat of Haemophilius
mucous membranes of human and animals
(respiratory and genital)
Haemophilus genus have filaments and sometimes fimbria?
true
Additives to the culture for Heamophilus?
- Haem (X - factor)
- NAD (V - factor)
- some species need 10-15% CO2
species of haemophilus?
H. influenzae
H. Parasuis
features of H. parasuis?
- V factor demand
- 15 serotypes
- causes Porcine polyserositis (glasser’s disease)
- causes severe systemic disease characterised by:
- Arthritis
- Meningitis
- Fibrious polyserositis
- causes severe systemic disease characterised by:
Habitat of Histophilus somni?
Urogenital and respiratory mucous membranes
culture requirements for H. somni?
- X, V factor not needed
- CO2 demand
pathogenicity of H. somini?
- cattle
- calf pneumonia
- septicaemia
- thromboembolic meningoencephalitis (TEME)
- Abortion
- Mastitis
- Sheep
- epididymitis - orchitis
- abortion
- mastitis
- lamb septicaemia
Habitat of Avibacterium?
respiratory mucosa
Avibacterium have filaments?
true
culture requirements of Avibacterium?
- some species need CO2
- V factor demand is variable
species of Avibacterium?
- A. paragallinarum
- A. gallinarium
- A. Avium
features of A. paragallinarum?
- CO2 and factor V are needed
- 3 serogroups, 9 subgroups
-
Infectious coryzoa of hens
- inflammation of sinuses, nasal discharge and sneezing
- chicken cold - v. infectious
Features of A. gallinarum?
- factor V is not needed
- mild respiratory disease of hens
features of A. Avium?
- Factor V is needed
- saprophyte, sometimes causes mild respiratory disease in hens
habitat of orinithobacterium?
upper respitatory tract of some bird species
(chicken and turkey)
culture needed for Orinthobacterium?
- blood agar
- 10% CO2
biochemistry of orinithobacterium?
- Catalase -
- oxidase +
pathogenicity of orinithobacterium?
turkey, chicken, upper respiratory infection
habitat of Riemerella anatipestifer?
water fowl upper respiratory ways
culture for Riemerella anatipestifer?
- blood agar
- chocolate agar
- 10% CO2
biochemistry of Rimierella anatipestifer?
- extracellular enzymes
- proteolytic
pathogenicity of Riemerella anatipestifer?
anatipestifer disease in waterfowl
Habitat of Taylorella equigenitalis?
- genital mucous membranes of the stallion
- clitoris of the mare
Taylorella equigenitalis has filaments?
true
culture needed for taylorella equigenitalis?
- X and V factors are not needed
- CO2 demand
disease caused by taylorella equigenitalis?
CEM: contagious equine metritis