口腔常见细菌集聚作用对表面疏水性的影响  

Effect of Aggregation on Cell-Surface Hydrophobicity of Oral Bacteria

作　　者：李艳红[1] 李罡[1] 柳茜[2] 李继遥[2] 肖晓蓉[2] 周学东[2] 

机构地区：[1]昆明医学院附属口腔医院,云南昆明650031 [2]四川大学华西口腔医学院,四川成都610041

出　　处：《昆明医学院学报》2009年第12期3-6,共4页Journal of Kunming Medical College

基　　金：国家自然科学基金资助项目(39670785)

摘　　要：目的研究口腔常见细菌集聚作用对细菌表面疏水性的影响,从而进一步探讨细菌表面疏水性与细菌间集聚的关系.方法采用微生物粘着碳氢化合物法,测定5种口腔常细菌相互集聚后的细胞表面疏水率,并与该5种细菌的细胞表面疏水率进行比较.结果将两种细菌混合后,细菌表面疏水率出现四种变化:(1)与混合前两种细菌的细胞表面疏水率无明显差别;(2)介于混合前两种细菌细胞表面疏水率之间;(3)高于混合前两种细菌细胞表面疏水率;(4)低于混合前两种细菌细胞表面疏水率.结论细菌间的相互集聚作用对细胞表面疏水性有影响.Objective To study the effect of aggregation on cell-surface hydrophobicity of oral bacteria,and the relationship between cell-surface hydrophobicity and aggregation.Method Microbial adhesion to hydrocarbons（MATH） was used to measure the cell-surface hydrophobicity of 5 kinds of bacteria mixed each other,and compared with the initial cell-surface hydrophobicity before mixing.Result After every two bacteria mixed,the cell-surface hydrophobicity showed four kinds of changes.（1） As compared to the initial cell-surface hydrophobicity,no remarkable change took place.（2） The value of it was between the initial cell-surface hydrophobicity of the two bacteria mixed.（3） It got much higher than the initial cell-surface hydrophobicity of the two bacteria mixed.（4） It got lower than the initial cell-surface hydrophobicity of the two bacteria mixed.Conclusion Aggregation has effect on the cell-surface hydrophobicity of oral bacteria.

关 键 词：口腔细菌 集聚 疏水性 牙龈卟啉单胞菌 粘性放线菌 变链球菌 血链球菌 细胞表面 乳杆菌 牙菌斑 

分 类 号：R780.2[医药卫生—口腔医学]