摘要
养殖泥螺样品体内需氧平板菌落数为 7 3× 1 0 5～ 2 8× 1 0 6 个 /g。从泥螺体内共分离获得 2 1 7株细菌 ,88 5 %是革兰氏阴性杆菌。优势菌属是肠杆菌科 (Enterobacteriaceae) 61株、气单胞菌属 (Aeromonas) 58株、弧菌属 (Vibrio) 2 7株和假单胞菌属 (Pseudomonas) 2 1株。结果表明 ,每批泥螺样品的细菌总数均超出卫生标准 1～ 2个数量级 ,7月和 9月样品的大肠菌群数超出了规定的指标 ,应重视泥螺收捕后的消毒处理环节。泥螺体内细菌菌群由 1 0个菌属组成 ,涂泥中占优势的芽孢杆菌属细菌在泥螺体内却是少量的 ,反映泥螺对体内微生物组成与数量有一定调节控制作用。
Total aerobic plate counts for bacterial colonies in the Bullacta exarata ranged from 7. 3×10 5 to 2. 8×10 6 cells per gram. 217 strains of bacteria were isolated from the Bullacta exarata and 88. 5% of them were Gram-negative rod . The predominant genera were composed of Enterobacteriaceae (61 strains), Aeromonas (58), Vibrio (27), Pseudomonas (21). The results indicate that total bacteria numbers exceeds state standard by 1～2 quantity level in every samples. The coliform bacteria numbers exceeds health standard in sample of seven and nine month. It should be brought to attention. The microflora were composed of ten genus , predominant Bacillus of rearing shoal were few in the Bullacta exarata that may play a special role for regulating and controlling the microbial community .
出处
《微生物学通报》
CAS
CSCD
北大核心
2002年第6期9-11,共3页
Microbiology China
基金
浙江省科委资助项目 (No 99110 2 0 71)
