Gram Positive Non Spore Forming Bacilli Flashcards
What are the gram positive non spore forming bacilli?
Corynebacterium
Listeria
Erysipelothrix
Lactobacillus
Which GPNSFB are catalase +?
Corynebacterium
Listeria
Which GPNSFB are facultative anaerob?
Corynebacterium(aerobic conditions best)
Listeria
Which GPNSFB is MOTİLE?
Listeria
Which GPNSFB is MOTİLE ONLY AT ROOM TEMPERATURE?
Listeria
Listeria grows at ___ celcius
4
Which GPNSFB is a part of normal microbiata of animal and human and also animal,human,plant pathogen?
Corynbacterium
How is the microscopic appeareance of coryneobacterium?
Small pleomorphic
Metachromotic granules
Chinese letters
Spesific patterns (Izgara teli)
What is Metachromatic granule ?
=Babes-Ernst granule at the tips of bacteria
How can we differentiate C.diphteria from other diphteria causing agents?
Babes-Ernst granules
Which media and agar do we use in lab for Corynebacterium?
Cysteine tellurite blood agar(brown-black)
Loeffler’s Media(grayish-whitish)
What test do we use to identify if Corynebacterium produces toxin or not?
Toxigenity test(ELEK TEST)
Which is a spesific antigen for C.diphteria in corynebacterium species?
K antigen—> provides
antibacterial immunity&hypersensitivity
Describe Exotoxin (diphteria toxin)
AB toxin-
A part:Active part
B part:Binds to epitheliai cells
What does diphteria toxin cause?
INHIBITS PROTEİN SYNTHESİS AND FORMS A PSEUDOMEMBRANE
What is the pathogenesis of diphteria toxin?
İnhibits protein synthesis
How can we differentiate streptococal and corynebacterium diphteria membranes?
When you attempt to remove the C.diphteria’s membrane formation is starts to bleed.
What are the 2 different routes for C.diphteria?
Skin and lung
What is the lab appereance of listeria?
Narrow beta hemolysis
Cold environment motility(25 celcius)
Which Gram Positive non spor forming bacilli is facultative intracellular?
Listeria
What is Listeriolysin O ?
MAİN VİRULENCE FACTOR OF LİSTERİA
What does Listeriolysin O do?
Forms PORES ON RBC AND PHAGOSOMES
Which GPNSFB has actin tail like shigella?
Listeria
Who are the main risk groupes for Listeria?
Pregnants
Newborns
Elderly
İmmunosuppresed people