s21 to s45 bacterial diversity

Question 1

what is the most successful biological control agent yet produced?

Answer 1

the firmicute: B. thuringiensis
(used as an insecticide by producing delta-endotoxin)

Question 2

what is the genus clostridium responsible for

Answer 2

botox and used for aseptic sterility
(they’re strict anaerobes)

Question 3

where does savagella attach it self

Answer 3

the gut epithilium

Question 4

what organism stimulates the lymphocyte T17 in the immune system?

Answer 4

savagella
T17 causes an inflamitory response and is associated with rectal cancer

Question 5

what are the non-spore-forming firmicutes?

Answer 5

• aerotolerant lacto bacteria
  (make cheese and shit)
• listeria monocytogenes (facultative anaerobic rod)
  contaminate cheese, grows at refrigeration temperatures, and causes gastroenteritis.

Question 6

video on listeria monocytogenes

Answer 6

https://www.youtube.com/watch?v=swf9peIyQFo

Question 7

two non-spore-forming firmicutes

Answer 7

1. staphylococcus
   - faculatative anerobes
   - cocci in clusters
   - S. aureus
2. streptococcus
   - Aerotolerants
   - Cocci in chains
   - S. pneumoniae
   - S. pyogenes

Question 8

what organism lacks a cell wall and S-layer and what diseases does it cause?

Answer 8

mollicules or mycoplasma
causes pneumonia and meningitis

Question 9

what actinobactiera genus produced a lot of the antibiotics

Answer 9

Streptomyces
- Obligate aerobes; major antibiotic producers
- Form mycelia that fragment into smaller cells called arthrospores
- Have linear chromosomes with telomeres

Question 10

what species is an endophyte that fixes nitrogen

Answer 10

frankia (actinomycetes)

Question 11

what microbacteria is detected by acid-fast stain

Answer 11

mycobacterium

Question 12

what organism devides by snapping mecchanism

Answer 12

Corynebacterium diphtheriae