Micro lecture 21 Flashcards
what are alphaproteobacteria?
nitrogenfixing agrobacterium, marine
Grows in erythrocytes,marcrophages, vascular endothelial cells
Rickettsias
live in blood sucking arthopodsvectors or primary hosts?
Rickettsias
what proteo bacter descended from free living, aerobic bacterium?
Rickettsias
Possess bacteriochlorophylls a or b
Purple nonsulfur bacteria
have the ability to perform anoxygenic photosynthesis
Purple nonsulfur bacteria
what occurs to purple nonsulfur bacteria in the absence of light?
they grow aerobically as chemoorganotrophs
can produce cellualar cysts in response to nutrient limitation
Purple nonsulfer bacteria
Resistant to desiccation and have thick outer coat and store polybhydroxybutyrate
purple nonsulfur bacteria cysts
what alphaproteobacteria contain protheca?
Caulobacterales
what are prostheca?
extensions of cell with PM and CW that is narrower thn mature cell
In the genus Caulobacter, asymmetric transverse fission produces a flagellated_______ cell that swims off but eventually settles, ejects its flagella, and forms a _____that adheres to surfaces.
swarmer stalk
grows symbiotically as nitrogen fixing bacteroids within legume roots nodules
Rhizobiales
pleomorphic under adverse conditions
Rhizobiales
causes crown gall disease by means of tumor inducing plasmid
A.tumefaciens
genus agrobacterium are blank pathogens
plant pathogens
an undulant fever that is a zoonotic disease is cause by what proteobacteria ?
Brucellosis
growth that is uspportd by assimilation of C1 compunds
methanoptrophs
use methane as carbon and energy source
methylocystis
in nitrification ammonium or nitrate are electron donors true or false?
true
Complete ammonia oxidation
Comammox
they are simialr to a-proteobacteria but use decomposed organic matter in anoxic enviroments
Burkholderiales
what bacteria produces gonorrehea and meningitis
Genus neiserria
Profile of neisseria
non motile, aerobic and gram negative cocci
What proteobacteria can have capsules and pili with occur in pairs with adjacent sides
nesseria
Sheaths are ?
hollow tubelike structures surronding chain cells found in Burkholdericeae
causes whopping cough
Bordetella pertusiss
What bacteria have the ability to oxidize ammonia to nitirite via enzymes AMO and HAO
Nitrosomonadaceace
Autotrophic metabolism
fixes CO2 in calvin benson cycle
Thiobacillaceae
lack photosynthetic pigments
chemolithotrophs that oxidize sulfur compounds
motile/non
unicellular
are purple sulfur bacteria strict anaerobes ?
yes
can be found in anoxic sulfide rich zones in lakes
purple sulfur bacteria
Purple sulfur bacteria are photolithotrophs that use H2S as an electron donor and deposit . T o F
true
what is the intracellular pathogen of protozoa?
Legionella
what can be transmitted through aerosolized water droplets
legionella
within the host cell legionella bacteria are unbound . T o F
false they are contianed in a vacuole
what triggers SCV to be metabolically active?
low PH
Acinetobacter profile
obligate anerobic
nonmotile
coccobacilli
what has an outer leaflet if lipooligosaccharides, lacks antigen O and contirbutes to resistances
Acintobacter
luminescent bacteria
vibrionaceae
caues cholera
vibrio cholerae
Bacteria group that can be mix acid fermenters or butandiol fermenters
Enterbacteriaceae
