Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
27 Cards in this Set
- Front
- Back
|
What genus are part of Proteeae
|
Proteus, Morganella, Providencia
|
|
|
What test are used to differentiate between Proteus, Morganella, and Providenicia
|
H2S +. Swarm +, D- man (manose) -, Gel liq (gelatinase) +, Lipase +
|
|
|
Proteeae produce_____ and are positive for_____ which allows them to show _____ infection
|
phenylalanine deaminase
urease Urinary Tract |
|
|
what test are used to differentiate between P. mirabilis and other Proteus?
|
Ornithine +
|
|
|
What test are used to differentiate P. hauseri/P. vulgaris from other proteus? Differentiate between P. hauseri and P. vulgaris
|
Indole + for both
Salicin + for P. vulgaris |
|
|
What inhibits swarming?
|
Phenyl ethyl alcohol
|
|
|
In KIA proteus has _____ slant and ______ butt.
|
Alkaline - no lactose fermentation
Acid - glucose fermentation |
|
|
What test can be used to differentiate morganella from proteus?
|
Swarm -
H2S - |
|
|
what tests are used to identify providencia
|
Fermentation of inositol, adonitol, arabitol, trehalose, and galactose
|
|
|
How do Y. pestis get transmitted from Fleas to Humans?
|
Y. pestis clogs the flea proventriculus (gut)
Less than 27 C Y. pestis produces coagulase Flea cannot get food, regurgitates Y. pestis in humans |
|
|
_____ and ______ are stains for Y. pestis
|
Gram Stain
Wayson's Stain (methylene blue, carbofuschin) |
|
|
On blood agar plat Y. Pestis exhibits ____ hemolysis
|
Gamma
|
|
|
infection 7 days after flea bite
sudden onset of fever chills weakness headache Painful buboes |
Bubonic PLague
75% mortality if untreated |
|
|
Droplet nuclei
short incubation 2-3 days fever, maliase, pulmonary signs cough and chest pain Sepsis and Death |
Pneumoni PLague
90% mortality rate |
|
|
Direct infection by flea bite in blood stream
High fever delirium seizures septic shock disseminated intravascular Black hemorrhaegic splotches |
Septicemic Plague
black death no bubous |
|
|
______,______,_____, and ________ are possible treatments for Y. pestis
|
streptomycin, gentamicin, tetracycline, and chloramphenicol
|
|
|
Three important things about Y. pestis
|
1. 1st time iron played a pathogenic role
2. Discovery of type III secretion system 3. Role of flea in disease |
|
|
Virulence factors of three strains
|
YadA
LcrV Adhesins/Invasins |
|
|
____ binds intestinal mucin and collagen. Provides resitance to ______.
|
YadA (yersinia adhesin A)
phagocytosis |
|
|
LcrV
|
secreted extracellularly opens channels in euk membranes
|
|
|
_____, ____, and _____ are mans of iron acquistion
|
Siderophores, Heme Utilization, Hemin Storage
|
|
|
Siderophores
|
Yersinia Bactin
|
|
|
Hemin Storage
|
bind hemin on the surface, gives colonies dark brown color
|
|
|
What two test differentiate Y. pestis from pseudotuberculosis and enterocolitica
|
Motility at 22 C -
Urease - |
|
|
Wha two test diffrentiate Y. enterocolitica from pseudotuberculosis and pestis
|
Sucrose ferm +
Orn decarb + |
|
|
Tribe Erwinieae
genus Erwinia species amylovora |
fire blight
plugs xylem treateed by depolymerizin phage and bacteriocin |
|
|
E. herbiola
|
frost damage in trees
ice nucleation at -1 C |
