Chapter 10+11: Bacterial Classification Flashcards
5 different categories of proteobacteria
1) alpha proteobacteria
2) beta-proteobacteria
3) gamma proteobacteria
4) epsilon proteobacteria
5) delta-proteobacteria
alpha proteobacteria
grow at very low level of nutrients
include agriculturally important bacteria
human pathogens inclue obligate intracellular parasites
brucella
type of alpha proteobacteria
cause disease brucellosis
most common zoonotonic disease (disease that is spread by animals to humans)
symtoms can come and go with time, symptoms include fever, joint pain, and sweating
BRUCE THE DOG
Rickettsia
type of alpha proteobacteria transmitted by ticks and insects (arthropod-borne)
gram - coccobacilli
enter host cell by phagocytosis and reproduce by binary fission
R. Rickettsia is responsible for causing spotted fever (causes fever, rashes transmitted by ticks)
RICKETT- SEEYA TICK IN YA HAIR
beta-proteobacteria
often use nutrient subtances that diffuse away from areas of anaerobic decomposition of organic matter
pathogenic causing
Neisseria
type of beta-proteobacteria
gram - cocci
aerobic
enhabit mucous membranes of mammals
causes infections in humans
NEiCE AND WET IN HERE
N. menigitides (meningitis)
pathogenic species of Neisseria inflammation of the mucous membranes (covers the brain) symptoms: fever and headache
N. gonorrhoeae
pathogenic species of Neisseria
STI
can be treated with anitbiotics
Bordetella
type of beta-proteobacteria
gram - rods
causes B. pertussis (whooping cough)
BORD AND COUGH
Gamma proteobacteria
largest subgroup of bacteria (has many imporant pathogens)
enterobacteriales (enterics)
type of gamma proteobacteria
gram - rods
peritrichous (flagella around organism)
faculatative anaerobes (prefer O2 but can grow without it)
fermenters of glucose
inhabit the intestines of humans and animals
ENTERO STOMACH
escherichia
type of gamma proteobacteria Escherichia inhabits the intestinal tract and causes diarrheas
E.COLI ALBERTA CASE
Salmonella
type of gamma proteobacteria
causes diarrheas
intestinal disease spread through animals (eggs)
most severe illness of salmonella
shigella
type of gamma proteobacteria
can cause life-threatening dysentary (severe diarrhea- bloody stools and cramping)
SHIG-SHIT
klebsiella
type of gamma proteobacteria
found in soil or water
klebsiella pneumoniae- causes pneumonia (infection or inflammation of alveoli) in humans
KLEB-COUGH
Yersinia
type of gamma proteobacteria bubonic plague
spread through rats carrying fleas which caused the black death
SIN-BUBONIC PLAGUE
Haemophilus influenzae
type of gamma proteobacteria
under pasteurales (non-motile, human and animal pathogens)
meningitis in children (inflammation of mucous membranes)