光合细菌对三角帆蚌肠道菌群及对蚌体生长的影响  

Effect of photosynthetic bacteria on intestinal microflora and growth of Hyriopsis cumingii.

作　　者：尹军霞[1] 陈瑛[1] 张信娣[1] 俞芸芸[1] 

机构地区：[1]绍兴文理学院生物系,浙江绍兴312000

出　　处：《浙江大学学报（农业与生命科学版）》2007年第3期311-315,共5页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：绍兴市重点科技项目(200511001)

摘　　要：于浙江绍兴官渡三角帆蚌养殖基地,设投放光合细菌培养液和不投放光合细菌培养液网箱两个.定期对两网箱水样光合细菌、好氧菌总数和三角帆蚌肠道光合细菌、好氧菌总数、厌氧菌总数、乳酸杆菌、双歧杆菌等指标进行检测.结果表明:投放的光合细菌不能在水中长期定植;水体光合细菌浓度大于400 CFU·mL-1时抑制好氧菌的生长,低于该浓度则促进好氧菌的生长;三角帆蚌肠道光合细菌、好氧菌总数受水体光合细菌、好氧菌总数影响;三角帆蚌肠道高浓度的光合细菌(>2664 CFU·g-1)抑制好氧菌、厌氧菌及其中的乳酸杆菌和双歧杆菌的生长,低浓度的光合细菌则促进它们的生长;高浓度的光合细菌(水体中浓度大于400 CFU·mL-1,肠道中浓度大于2664 CFU·g-1)促进三角帆蚌的生长,低浓度的光合细菌则抑制三角帆蚌的生长.Two water quality items including photosynthetic bacteria （PSB） and the total number of aerobe, and five intestinal microflora items in Hyriopsis cumingii including PSB, the total number of aerobe, the total number of anaerobe, Bifidobacterium and Lactobacillus, were investigated periodically in two net boxes set in the town of Guan Du, Shaoxing County. One of the net boxes was put in PSB, the other was not. The results showed that PSB put in water could not exist permanently. Aerobe was inhibited when PSB concentration in water was over 400 CFU·mL^-1 , while it was promoted when PSB concentration in water was below 400 CFU·mL^-1. PSB and the total number of aerobe in intestine of clam were effected by the PSB and aerobe content in water. PSB in intestine of clam at the concentration over 2664 CFU·g^-1 inhibited aerobe, anaerobe, Bifidobacterium and Lactobacillus, conversely, promoted. PSBat the concentration over 400 CFU·mL^-1 in water and over 2664 CFU·g^-1 in intestine of clam promoted the growth of Hyriopsis cumingii, contrarily, inhibited its growth.

关 键 词：光合细菌 三角帆蚌 好氧菌 厌氧菌 

分 类 号：S917.1[农业科学—水产科学] S966.22