earticle

영어

The purple nonsulfur photosynthetic bacteria, Rhodobacter sphaeroides, participate in the anoxic cycling of carbon both as the primary producer and as the light-stimulated consumers of the reduced organic compounds.
In this study, four different strains, i.e. R. sphaeroides KCTC 1434, MBTLJ-8, MBTLJ-13 and MBTLJ-20 were selected and used to analyze the relationships between the succinic acid and various light conditions.
The mutant strain exhibited an enhanced pigments production compared to the R. sphaeroides wild type under all light conditions. Additionally, the growth rate of R. spharoides KCTC1434 and three mutants strains under different light conditions, and the impact on photosynthetic mechanism by various pigment were produced under different light conditions.
Therefore, the wave length of light probably affected the growth of all of the strains. Moreover, mutant types occurred the enhanced cell growth phenomenon under the blue colored light emitting diode (LED) conditions and stimulated at low concentrations of succinic acid, which was compensatory for succinic acid. Therefore, R. sphaeroides MBTLJ-8, 13, 20 provieds the strong evidence that enhance cell growth and produce pigments for the succinic acid.