Open AccessExtreme UV‐A sensitivity of the filamentous gliding bacterium Vitreoscilla stercoraria
Author(s) -
Biggs Laura F.,
Moody A.John
Publication year - 2003
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1016/s0378-1097(03)00420-8
Subject(s) - catalase , superoxide dismutase , microbiology and biotechnology , reactive oxygen species , bacteria , biology , strain (injury) , chemistry , biochemistry , enzyme , anatomy , genetics
Strains of the filamentous gliding bacterium Vitreoscilla , LB13 and C1, are shown to be highly sensitive to UV‐A (320–400 nm), with an LD 50 of less than 20 kJ m −2 . Vitreoscilla LB13 can be protected from UV‐A by including superoxide dismutase and catalase, separately or in combination, during the exposure, indicating an involvement of reactive oxygen species. LB13A, a photo‐insensitive strain derived from LB13, is described.