Block B 2 Flashcards
gram-negative bacteria
5 classes of proteobacteria
alpha
beta
delta
gamma
epsilon
major lineage (phylum) of bacteria
proteobacteria
6 major orders of alphaproteobacteria
rhizobiales
rickettsiales
rhodobacterales
rhodospirillales
caulodobacterales
spingomonadales
shape of rickettsiales
small, coccoid or rod shaped
what type of parasites are rickettsiales
obligate intracellular
2 diseases that rickettsiales are causative of
typhus
rocky mountain spotted fever
sphingomonadales sub bac.
micavibrio -the vampire bug
sphingomonas
what type of bacteria is included with rhodobacterales
purple non sulfur bacteria
aerobic anoxygenic phototrophs
N fixing bacteria
what is the largest and most metabolically diverse order
rhizobiales
how many genera contain rhizobia
9
what major order contains phototrophs, chemolithotrophs, symbionts, N fixing bacteria, and pathogens
rhizobiales
6 major orders of betaproteobacteria
burkholderiales
hydrogenophilales
methylophilales
niesseriales
nitrosomonadales
rhodocyclales
what major order of betaproteobacteria all grows aerobically
burkholderia
what major order of betaproteobacteria grow best as photoheterotroph
rhodocyclus
what produces a thick capsule and is important in wastewater treatment
zooglea
what strain of meningococcus causes meningitis
neisseria meningitidis
what shape is chromobacterium
rod shaped
what is the pigment that some species of chromobacterium produce
violacein
what eqn is very important in managing ammonia levels in waste water
nitrosomonas + nictrobacter = nitrification
what is enteric bacteria
phylogenetic group within gammaproteobacteria
what do enteric bacteria do with sugars
ferment sugars to a variety of end products
what are the two broad categories that enteric bacteria are separated into
mixed acid fermenters
2,3-butanediol fermenters
shape of e.coli
straight rods
what group can escherichia and salmonella and shigella be categorised into
mixed acid fermenters
what is salmonella usually categorised immunologically by
surface antigens
applications of E.coli in biotechnology
recombinant proteins
biofuels
synthetic biology
what temp does E.coli grow at
37 degrees
doubling time of E.Coli
20 mins
2 examples f butanediol fermenters
enterobacter
klebsiella
where is enterobacter found and what can it cause
water, sewage, IT tract of warm blooded animals
UTI
where is klebsiella found and what can it occasionally cause
soil and water
pneumonia
what can be said about oxidase and catalase qualities of pseudomonadales
both positive
shape and oxidase properties of vibrionales
positive
curved rods
what does vibrio spp. do to cause diarrhea
adheres to gut wall and secretes a toxin
how many A and B subunits make up vibrio spp.
1 A
5B
4 stages leading to cholera
-B adheres to intestinal epithelial cell s
-A translocated into host cell
-activates adenylyl cyclase leading to ^ cAMP levels
-leads to ion imbalance and diarrhea
what can be said about sulphate and sulfur with delta and epsilonproteobacteria
reducers
out of the following epsilonproteobacteria what is pathogenic
campylobacter, sulfurospirillum, and helicobacter
campylobacter and helicobacter
incubation period of campylobacter jejuni
1-11 days
reservoir of campylobacter jejuni
GI tract of birds
