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  • Title: Outbursting wedges of the colonies of Clostridium welchii containing chain forming mutants after ultra violet irradiation.
    Author: Rafi Shaikh M, Lominski I.
    Journal: Zentralbl Bakteriol Orig A; 1975; 230(2):246-51. PubMed ID: 167536.
    Abstract:
    Cl. welchii NCTC 6785 was irradiated with UV light. The 40 minutes irradiated cells after 3-8 days ageing at room temperature (22-25 degrees C) and 48 hours initial incubation at 37 degrees C produced hairy outbursting wedges. These wedges gave rise to the colonies composed of chain forming mutants, which on transfer into the fluid medium grew into a pure chain forming culture.
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