Sterilization and disinfection
Identify the wrong statement about L forms
|A||Observed by Kleinberger Noble|
|B||L forms are seen only in Streptococcus group of bacteria|
|C||Originally reported in Streptobacillus moniliformis|
|D||develop in the presence of penicillin|
a. L forms are cell wall deficient bacteria derived from normal bacteria spontaneously or in the presence of cell wall synthesis inhibitors.
b. They were first described in the bacterium Streptobacillus moniliformis at the Lister institute of London.
c. Stable-when the aberrant form becomes the permanent feature, i.e maintained in serial subculture ;
d. Unstable-morphological abnormality is maintained in the presence of inducing agent only
e. L-forms can develop from Gram positive as well as from Gram negative bacteria.
f. Non-pathogenic in lab animals.
g. Form very tiny colonies when grown on special media.These colonies are best seen insitu on agar under the microscope.