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Pi30 DNA Probe May Be Useful for the Identification of Prevotella intermedia at the Species or Strain Level
Author(s) -
Shin Yong Kook,
Jeong SeungU,
Yoo So Young,
Kim MiKwang,
Kim HwaSook,
Kim ByungOck,
Kim Do Kyung,
Hwang HoKeel,
Kook JoongKi
Publication year - 2004
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/j.1348-0421.2004.tb03622.x
Subject(s) - prevotella intermedia , biology , restriction fragment length polymorphism , southern blot , genomic dna , microbiology and biotechnology , intermedia , hybridization probe , dot blot , subspecies , restriction fragment , dna–dna hybridization , strain (injury) , genetics , dna , polymerase chain reaction , bacteria , gene , porphyromonas gingivalis , anatomy , paleontology , art , performance art , art history
Recently, we introduced a new method for the rapid screening of bacterial species‐ or subspecies‐specific DNA probes, named the “inverted dot blot hybridization screening method.” This method has subsequently been then applied to develop species‐ or strain‐specific DNA probes for Prevotella intermedia and Prevotella nigrescens . In a previous study, the inverted dot blot hybridization data showed that a probe, Pi30, was specific for P. intermedia . In this study, the DNA probe Pi30 was evaluated by Southern blot analysis to determine if it could distinguish P. intermedia from P. nigrescens . The data showed that the probe Pi30 reacted with the genomic DNAs from the reference strains and clinical isolates of both P. intermedia and P. nigrescens , but the size of the signal bands was different. In addition, the probe Pi30 reacted with a 1.4 kbp fragment from the genomic DNAs digested with Pst I of the P. intermedia strains but not with any fragments of P. nigrescens strains. The result indicates that the probe Pi30 could be useful for the identification of P. intermedia by restriction fragment length polymorphism (RFLP) at the species or strain level.