Final > Infectious Agents: Bacteria Flashcards
What are the 2 phyla of gram-positive bacteria?
- Actinobacteria
2. Firmicutes
What are some examples of gram-negative bacterial phyla?
- Proteobacteria
- Cyanobacteria
- Chlamydiae
- Bacteroidetes
- Spirochaetes
- etc.
What is the largest taxonomic group of bacteria? What are the 5 classes within this group?
Proteobacteria can be divided into:
- alphaproteobacteria
- betaproteobacteria
- gammaproteobacteria
- deltaproteobacteria
- epsilonproteobacteria
What are some common traits of alphaproteobacteria?
Capable of growing with very little nutrients. Many have stalks or buds known as prosthecae.
Which alphaproteobacteria is closely related to the mitochondrion 16S rRNA?
Pelagibacter.
Which alphaproteobacteria is an obligate intracellular parasite which is insect-transmitted and can cause spotted fevers?
Rickettsia.
Which alphaproteobacteria is an obligate parasite that can cause brucellosis in humans?
Brucella.
Which betaproteobacteria can cause whooping cough in humans?
Bordetella pertussis.
Which betaproteobacteria can cause gonorrhoea? What about meningitis?
Neisseria gonorrhoeae and Neisseria meningitidis.
Which gammaproteobacteria can cause tularemia?
Francisella tularensis.
Which gammaproteobacteria can cause wound and urinary tract infections?
Pseudomonas aeruginosa.
Which gammaproteobacteria is resistant to antibiotics and is typically a respiratory pathogen?
Acinetobacter baumanii.
What gammaproteobacteria most commonly causes conjunctivitis?
Moraxella lacunata.
Which gammaproteobacteria found in streams, warm-water pipes, and cooling towers is known to cause legionellosis?
Legionella.
Which gammaproteobacteria can cause cholera?
Vibrionales cholerae.
Which 2 gammaproteobacteria in the order enterobacteriales commonly cause foodborne diseases?
- Escherichia coli
2. Salmonella
Which gammaproteobacteria in the order enterobacteriales causes bacillary dysentery?
Shigella.
Which gammaproteobacteria in the order enterobacteriales produces red pigment and is a common cause of nosocomial infections?
Serratia.
Which gammaproteobacteria in the order enterobacteriales causes plague?
Yersinia pestis! The most memorable one! Wow! So cool!
Which 2 gammaproteobacteria in the order enterobacteriales can cause urinary tract infections and nosocomial infections?
- Enterobacter cloacae
2. Enterobacter aerogenes
Which gammaproteobacteria in the order pasteurellales can cause meningitis, earaches, and epiglottitis? Why is it called this?
Haemophilus influenzae. It was called this because people thought it was the source of influenza. That is, until the actual viral source of influenza was discovered. Now those people look stupid.
Which class of proteobacteria has no known human pathogens?
Deltaproteobacteria!
Which epsilonproteobacteria has a single polar flagellum and can cause foodborne intestinal disease?
Campylobacter jejuni.
Which epsilonproteobacteria has multiple glagella and can cause peptic ulcers/stomach cancer? How was its connection to ulcers confirmed? By who?
Helicobacter pylori. Cause of ulcers confirmed when Barry Marshall drank some H. pylori, developed ulcers, and then treated them with antibiotics. What a mad lad!
