Gram Negative Spiral
All are true of T. pallidium except:
|A||Can be maintained in rabbit testis|
|B||Motile by peritrichate flagella|
|C||To visualise, dark ground microscopy is used|
|D||Used for TPI test|
a. T. pallidum, the causative agent of syphilis cannot be grown in any artificial medium. However, it can be grown in rabbit testis.
b. This strain is referred to as Nichol’s strain. This organism is motile by endoflagella, present only at the poles.