들깻잎과 생산환경에서 분리한 Bacillus cereus의 독소 유전자와 항생제 감수성 분석
Profiles of Toxin Genes and Antibiotic Susceptibility of Bacillus cereus Isolated from Perilla Leaf and Cultivation Areas
Two-hundred Bacillus cereus isolated from perilla leaf cultivation areas in Miryang, Korea were investigated for toxin genes and antibiotic susceptibility. Toxigenic patterns of isolates were identified to be 11 groups through toxin gene profiles. 21% of strains isolated from the perilla leaves had both enterotoxin and emetic toxin. Toxin genes entFM (100%), nheA (100%) and hblA, C, D (65.5%) were frequently found in the perilla leaves, whereas EM (21.0%) was less common. Most isolates were susceptible to 10 antibiotics, but they were highly resistant to penicillin (100%), ampicillin (100%), oxacillin (94.9%), amoxicillin-clavulanic acid (95.6%), cefazolin (78.2%), and rifampicin (58.0%). These results indicate that food-borne outbreak caused by B. cereus might lead to diarrhea and emetic syndromes.
목차
Abstract 서론 재료 및 방법 장소 선정 및 시료 채취 B. cereus 분리 및 동정 독소유전자 분석 항생제 감수성 시험 결과 및 고찰 B. cereus의 오염분포 B. cereus의 독소 유전자 분석 항생제 내성 분석 요약 문헌