中国微生态学杂志
中國微生態學雜誌
중국미생태학잡지
CHINESE JOURNAL OF MICROECOLOGY
2001年
2期
66-69,72
,共5页
双歧杆菌%16SrRNA%荧光定量PCR
雙歧桿菌%16SrRNA%熒光定量PCR
쌍기간균%16SrRNA%형광정량PCR
目的应用16S rRNA序列设计引物定量测定双歧杆菌。方法应用青春型双歧杆菌2627号作常规PCR扩增出的模板经系列稀释做荧光定量PCR,制作标准曲线;对青春型、长型、短型、婴儿型、两歧型、链型等6个种共15株双歧杆菌和大肠杆菌等10株其他细菌做荧光定量PCR,计算机通过与标准曲线比较给出定量结果;对青春型双歧杆菌2627号进行敏感性测定。结果 15株双歧杆菌(106个菌)荧光定量PCR法得到拷贝数(1.0×106~1.4×106拷贝)基本一致。结论通过荧光定量PCR可正确定量样品中双歧杆菌数量。
目的應用16S rRNA序列設計引物定量測定雙歧桿菌。方法應用青春型雙歧桿菌2627號作常規PCR擴增齣的模闆經繫列稀釋做熒光定量PCR,製作標準麯線;對青春型、長型、短型、嬰兒型、兩歧型、鏈型等6箇種共15株雙歧桿菌和大腸桿菌等10株其他細菌做熒光定量PCR,計算機通過與標準麯線比較給齣定量結果;對青春型雙歧桿菌2627號進行敏感性測定。結果 15株雙歧桿菌(106箇菌)熒光定量PCR法得到拷貝數(1.0×106~1.4×106拷貝)基本一緻。結論通過熒光定量PCR可正確定量樣品中雙歧桿菌數量。
목적응용16S rRNA서렬설계인물정량측정쌍기간균。방법응용청춘형쌍기간균2627호작상규PCR확증출적모판경계렬희석주형광정량PCR,제작표준곡선;대청춘형、장형、단형、영인형、량기형、련형등6개충공15주쌍기간균화대장간균등10주기타세균주형광정량PCR,계산궤통과여표준곡선비교급출정량결과;대청춘형쌍기간균2627호진행민감성측정。결과 15주쌍기간균(106개균)형광정량PCR법득도고패수(1.0×106~1.4×106고패)기본일치。결론통과형광정량PCR가정학정량양품중쌍기간균수량。
Objective:Quantificative detecting Bifidobacteria by 16S rRNA-targeted PCR.Methods:The standard curve of fluorescent quantificative PCR was deveoped by using a series of dilution of PCR products from Bifidobacterium 2627.Compared with the standard curve,15 strains of Bifidobacteria and 10 strains other bacteria were measured by fluorescent quantificative PCR.The sensitivity was detected by fluorescent quantificative PCR of B.adolescentis 2627.Results:The range of fluorescent quantificative PCR of 15 strains of Bifidobacteria(106bacteria)was nearly equal(1.0×106~1.4×106copies).Conclusion:fluorescent quantificative PCR can be applicable for the quantification fo Bifidobadteria.