SCREENING AND MUTAGENESIS OF Lactobacillus brevis FOR BIOSYNTHESIS OF γ-AMINOBUTYRIC ACID SCREENING OF L-ARGININE HIGH PRODUCTION STRAIN USING UV IRRADIATION AND CARBOXYMETHYL-L-CYSTEINE COMPLEXED METHOD Effects of Pentose Phosphate Pathway on DNA Damage Repair in Deinococcus radiodurans Studies on the Anti-UV-Irradiation Effect of Quercitrin Extracted from Ginkgo Leaves (Ginkgo biloba) INDUCTION OF PHYLAXIN COMPOUND WITH UV IN PLANT LEAVES