Download Bacteria Phyla

Bacteria Phyla
Proteobacteria
- Largest and most diverse phylum
- Contain genus Rhizobium – convert
nitrogen into ammonia
- Contain genus Nitrosomnas –convert
ammonia to nitrite which allows
other bacteria to convert to nitrate
- Contains genus Agrobacterium
causes tumors in plants
- Rickettsiae causes Rocky Mtn. Fever
- Helicobacter pylori causes stomach
ulcers
- Species are enteric such as E. coli
make vitamin K and help enzymes
break down food
- Contains genus Salmonella which
invades intestinal cells or creates
toxins
Gram-Positive Bacteria
- Most gram+ but some are gram –
- Contains streptoccal species
causes strepthroat
- Contains Clostridium botulinum
- Contains Lactobacilli – creates
lactic acid turns milk soar and
used to make yogurt
- Contains Bacillus anthrax –
biological weapon
- Contains Actinomycetes used
to make antibiotics such as
tetracycline & Streptomycin
- Contains genus Mycobacteria
causes tuberculosis and leprosy
Cyanobacteria
- Contain genus Anabaena which
form specialized cells called
heterocysts that convert nitrogen
into ammonia
- Responsible for Oxygen rich
atmosphere
Spirochetes
- Gram negative bacteria
- Some aerobic or anaerobic
- Contains Treponema pallidum
causes Syphilis
- Contains Borrelia burgdorferi
causes Lyme disease
Chlamydia
-
Gram Negative
Coccoidal
Live only inside animal cells
Cell walls lack peptidoglycan
Chlamydia trachomatis causes
nongonococcal urethritis or
chlamydia