Sulfate- and sulfur-reducing bacteria were isolated and studied from various wetlands in Korea. The researchers used a method to grow these bacteria in anaerobic conditions and identified 11 different strains. They found that these bacteria can use lactate and pyruvate as electron donors and sulfite and thiosulfate as electron acceptors. The bacteria belonged to the genera Desulfovibrio, Sulfurospirillum, and Desulfitobacterium. This study provides important information on these bacteria in Korean wetlands and their potential applications.