Alpha Proteobacteria Flashcards
1
Q
Purple non-sulfur bacteria
A
- anoxygenic
- mud, dams, oceans
- probiotics in fish-feed
- carotenoids
2
Q
Rickettsia
A
- rod, coccus, pleomorphic
- Gram-negative
- no flagella
- small
3
Q
Intracellular parasites
A
- blood and endothelial cells
- spread by parasites
4
Q
Reproduction
A
- phagocytosis
- binary fission
- host cells burst
5
Q
Digestion
A
oxidizes glutamate and intermediary compounds from host’s tricarboxylic acid cycle
6
Q
pro
Typhoid fever
A
- Rickettsia prowazekii
- Rickettsia typhi
7
Q
Rocky Mountain spotted fever
A
Rickettsia rickettsii
8
Q
Rhizobiaceae
A
- Rhizobium
- poly-beta-hydroxy-butyrate
- symbiosis with legume root nodules
- fix nitrogen
9
Q
Agrobacterium
A
- related to Rhizobium
- not beneficial with plants
10
Q
Nitrifying bacteria
A
- chemolithoautotrophs
- CO2 as carbon source
11
Q
Beta-Proteobacteria
A
- Nitrosomonas
- Nitrosococcus
- Nitrosospira
- oxidise ammonium to nitrite
12
Q
Alpha-Proteobacteria
A
- Nitrobacter
- Nitrococcus
- oxidise nitrite to nitrate
13
Q
Nitrosomonas and Nitrobacter
A
- Nitrification (NH4 + → NO2 - → NO3 -)
- in same soil
14
Q
Cytomembranes
A
nitrification takes place
15
Q
Ammonia Monooxygenase
A
convert ammonia to hydroxyamine
