Chapter 7- Prokaryotes Flashcards
(30 cards)
Peptidoglycan rRNA signature
Domain bacteria
Domain bacteria
Gram negative and gram positive
Gram negative
Proteobacteria and nonproteobacteria
Gram positive
Low g/c and high g/c
(α) Pelagibacter
Pelagibacter unique seems to be the moral abundant
α- Azospirillum
Uses plant nutrient and in return fixes nitrogen
α- Acetobacter
Industrially important aerobic organisms that inert ethanol into acetic acid
α- Caulobacter
Have stalks and flagella
α- Rhizobium, Bradyrhizobium
Are agriculturally important by infecting the roots of leguminous plants. They form nodules and the bacteria and plant form a symbiotic relationship resulting in fixation of nitrogen
α- Agrobacterium
A plant pathogen that causes a tumor like disease called a crown gall
α- Nitrosomonas
Oxidize ammonium to nitrate
α- Nitrobacter
Oxidizes nitrite into a species of nitrates in the process of nitrification
β- thiobacillus
Important in sulfur cycle, obtains energy by oxidizing the reduced forms of sulfur
β- bordetella
Bordetella pertussis causes pertussis or whopping cough
β- Neisserua gonorrhea
Causative agent of gonorrhoea
β- N. Meningitidis
The agent of meningococcal meningitis
γ- Pseudomonas
An opportunistic pathogen that is metabolically diverse
γ- legionella
causes an outbreak of pneumonia
γ- vibrio cholerae
the causative agent of cholera which is characterized by a profuse watery diarrhea (rice water stool)
γ- V. parahaemolyticus
less serious form of gastroenteritis, can be caused by undercooked shellfish
γ- Enterobacteriales
often called enterics and they inhabit the intestinal tract of humans and animals
γ- Echerichia
It is found in water or food when it has fecal contamination, not usually pathogenic but it can cause urinary tracts infections
γ- Salmonella
are potentially pathogenic and it is common in the intestinal tracts in poultry and cattle
γ- Salmonella enterica
all the members of the genus ~salmonella~