Removal of m-Cresol Wastewater by Immobilizing UV Mutated Pseudomonas sp. on Bamboo-Carbon Lactobacillus pentosus Fermentation Lactic Acid Production and High Yield Strain Mutation Breeding MUTANT SCREENING AND MEDIUM OPTIMIZING OF A PHOSPHATE-DISSOLVING BACTERIA STRAIN Protoplast preparation and induced screening of alkaline pullulanase producing bacterium Studies on screening and breeding of alkaline pullulanase producing bacterium and regulation of nutrition Protoplast preparation of Trichoderma taxi ZJUF0986 and screening of resistant mutants