AN ATTEMPT TO PHOTOREACTIVATE ULTRAVIOLET INACTIVATED STREPTOCOCCI

Abstract

Escherichia coli B/r, Aerobacter aerogenes 600, Streptococcus faecalis 10 Cl and Streptococcus lactis L215 were inactivated by UV (2537A ) while spread on the surface of Millipore filters (MPF''s). Under these conditions E.coli and A. aerogenes were reactivated by blue and white light while the streptococci were not. These results support the theory that porphyrins are involved in photoreactivation.