microbio exam 2 bacteria, archaea

all memorization

five classes of proteobacteria

alphaproteobacteria

betaproteobacteria

gammaroteobacteria

deltaptoteobacteria

campylobacterota

alphaproteobacteria

can grow with few nutrients

many symbionts

some intracellular pathogens

many have stalks or buds known as prosthecae

Rickettsia

obligate intracellular parasite

causes spotted fevers

Rhizobium

nitrogen fixation

genuses of alphaproteobacteria

rickettsia and rhizobium

genuses of gammaproteobacteria

escherichia, salmonella, shigella

gammaproteobacteria

many pathogens

commonly facultative anaerobes

orders of gammaproteobacteria

enterobacteriales, pseumonadales, vibrionales

escherichia

normal in intestine

opportunistic pathogen

UTIs

salmonella

common in poultry & reptiles

typhoid fever

shigella

nonmotile

causes dysentery

pseudomonas

metabolically versatile

opportunistic pathogen

vibrio

aquatic

causes cholera

genuses of campylobacterota

campylobacter and Heliobacter

campylobacter

foodborne illness

heliobacter pylori

stomach ulcers and cancer

cyanobacteria

multicellular

oxygenic photosynthesis

3 phylums of gram negative bacteria

pseudomonadota, campylobacteria, cyanobacteria

3 phylums of gram positive bacteria

bacillota (low GC), mycoplasmatota, actinomycetota (high GC)

bacillota

endospore formers

toxin producers

low GC

orders of bacillota

bacillales, clostridiales, lactobacillales

genuses of bacillales

bacillus, staphylococcus

Bacillus anthracis

anthrax

Bacillus thuringiensis

insect pathogen

Staphylococcus aureus

wound infections

often antibiotic resistant

toxin producing

genuses of clostridiales

clostridium, clostridiales

clostridium tetani

tetanus

clostridium botulinum

botulism

clostridiales difficile

normal gut microbiota

opportunistic pathogen

genuses of lactobacillales

streptococcus, enterococcus, listeria

streptococcus pyogenes

pharyngitis, scarlet fever, impetigo

streptococcus pneumoniae

pneumonia

streptococcus mutans

dental cavities

enterococcus faecalis and enterococcus faecium

common in intestinal tract

commonly infect urinary tract and surgical wounds

genuses of mycoplasmatota

mycoplasma

mycoplasma pneumoniae

mild form of pneumoniae

genuses of actinomycetota

mycobacterium, streptomyces

mycobacterium tuberculosis

acid fast cell wall

tuberculosis

mycobacterium leprae

acid fast cell wall

leprosy

streptomyces

many clinically important bacteria