Proteobacteria (4.2) & 6.1 Flashcards
What are causative agents for Rickettsia?
Rocky Mountain spotted fever and typhus fever
Is Gammaproteobacteria the most or least diverse?
It is the most diverse class of gram negative bacteria
Are Enterobacteria facultative anaerobes or aerobes?
facultative (optional) anaerobes
What is the causative agent of legionella pneumophilia and where is it common in?
Legionnaire’s disease (a respiratory disease); common to water contamination in warm pools of water such as those found in AC units
(Name based off of the outbreak in the American Legion Veterans Association)
What are the causative agents of Neisseria?
gonorrhea STD and bacterial meningitis
Does Haemophilus influenza cause influenza?
No
T or F: Psuedomonas is not very motile
False; it has multiple flagella
What class is relatively small and includes sulfate reducing bacteria?
Deltaproteobacteria
What class are considered eutrophs (copiotrophs)? What are eutrophs (copiotrophs)?
Betaproetobacteria; require many nutrients
Which species in the Epsilinoproteobacteria class is common to food poisoning?
C. jejuni
What are prominent genera in Alphaprotetobacteria?
Rickettsia and Chlamydia
What are the prominent genera of Gammaproteobacteria?
Psudeomonas, Pasteurella, Haemophilus, Vibrio, Legionella, Enterobacter family
What Gammaproteobacteria species in the Entereobacteria family is most mutualistic and may produce Shiga toxins?
E-coli
Where do betaproetobacteria often grow?
They grow between aerobic and anaerobic areas
What are the two distinctive categories of the Enterobacteria family? Define them.
Coliforms- “E. Coli-like” microbes that ferment lactose completely
Noncoliforms- fermentation of lactose is incomplete or absent
What class is the smallest and is microaerophilic?
Epsilonproteobacteria
The Enterobacteria family is found where?
In the gut
What does vibrio cholera produce?
A toxin which causes a hyper secretion of electrolytes and water in the large intestine, leading to watery diarrhea and dehydration
What are Enterobacteria able to ferment?
Carbohydrates
What genus of Deltaproteobacteria forms multicellular macroscopic fruiting bodies
Myxobacteria
What is the causative agent of vibrio cholera and is common where?
Cholera; it is common to water contamination
Is pseudomonas aeruginosa aerobic or anaerobic?
It is strictly aerobic
What Gammaproteobacteria genus in the Entereobacteria family has multiple serotypes (strains/variations of the same species) that may cause salmonellosis
Salmonella
What else does vibrio cause besides cholera ?
GI disease, cellulitis (infection of the skin and deeper tissues), and blood-borne infections
Why are Pseudomonas difficult to treat?
Because it’s resistant to multiple antibiotics and forms biofilms
Which genus of Deltaproteobacteria is parasitic?
Bdellovibrio
Where is Vibrio commonly found?
In alkaline environments like ocean ports and lagoons