1.  Spirillaceae

2. Spirochaetes Spirillaceae
Bacteria:
Family :
Spirochaetaceae
Leptospiraceae
Spirillaceae
Species:
Treponema
Leptospira
Spirillum
Borrelia

3. What is spirillacea? rigid spirally curved elongate bacteria
Spirillaceae is a family of bacteria Spirochaetes
It has been described as a member of Nitrosomonadales ,in Betaproteobacteria
Spiral shape
of Spirillaceae

4. Phylum : Protobacteria Class : Betaprotobacteria
Domain : Bacteria
Phylum : Protobacteria
Class : Betaprotobacteria
Order : Nitrosomonadales
Family : Spirillaceae
Genera : spirillum

5. Characteristics Type : Gram negative bacteria
Shape : long, helically coiled (spiral-shaped) cells
Nature : chemoheterotrophic
Lengths : between 5 and 250 µm and diameters around  µm
Special : Differ from other bacteria by the location of the flagella / axial fillament which located between the bacterial inner membrane and outer membrane in periplasmic space.

6. Cont’d
Mobility : Effect of the flagella cause a twisting motion which allows the spirochaete to move about.
Reproduction : a spirochaete will undergo asexual transverse binary fission.
Others : Most spirochaetes are free-living and anaerobic
gram- stained spirochaetes

7. Various screw bacteria
Borrelia,
b) Treponema,
c) Leptospira

8. Spirillum undulata
b) Spirillum rubrum
c) Spirillum volutans
d) Vibrio cholerae
  In studying movement of bacteria the student should not confuse it with "Brownian movement", the trembling of minute objects when highly magnified. This is likely due to a molecular bombardment.

9. Disease
Spirillum minus  and Streptobacillus moniliformis arespecies of Spirillum.
Spirillum minus cause rat-bite fever
Rat Bite
Fever ??
 illness caused by bacteria transmitted by rodents, rats, in most cases, which is passed from rodent to human via the rodent's urine or mucous secretions.

10. Effects of Rat-Bite fever

12. Trouble maker!!
KILL THIS
DISEASE
SPREADER !!