specific bacterial diversity Flashcards
1
Q
gram positive bacteria
A
low and high GC
2
Q
low GC
A
clostridium, staphylococcus, streptococcus, bacillus, lactobacillus
3
Q
high GC
A
frankia, streptomyces, actinomyces
4
Q
lactobacillus
A
- rod shaped
- fermented products are an important commensal in human gut flora
5
Q
bacillus
A
- rod shaped
- endospore forming
- can survive extreme environments
6
Q
staphylococcus
A
- coccus
- medicallly important
- MRSA
- found in nose and harmless skin bacteria
7
Q
streptococcus
A
‘twisted chain’
- coccus
- divide on a single axis therefore the progenitor cells grow in pairs or chains
8
Q
frankia
A
filamentous
- carry out nitrogen fixation in soil
- atmospheric N- NH3
9
Q
actinmyces
A
facultative anaerobe
- looks like fingal hyphae
- soil ecology
10
Q
streptomyces
A
- from mycelia
- produces conidia spores not the same as endospores
- produce antibiotics
11
Q
streptomycin antibiotics
A
active against gram positive/ negative bacteria and fungi, in times of nutrient depletion- survival mechanism
12
Q
types of proteobacteria
A
alpha, gamma, beta, delta, epsilon
13
Q
alpha
A
rhizobiales
14
Q
example of rhizobial
A
bradyrhizobium/rhizobium- form symbiosis with plants and fix nitrogen to ammonia
15
Q
beta
A
neisseriales
