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Fig. 2 | BMC Microbiology

Fig. 2

From: Gene expression changes in Porphyromonas gingivalis W83 after inoculation in rat oral cavity

Fig. 2

Isolation and identification of inoculated P.gingivalis W83. (A) Some suspicious black colonies were found from plaque mixture. (B) Suspious black colonies were pure cultured. (C) Gram staining proved the pure culture as gram-negative brevibacterium (×400). (D) Agarose gel electrophoresis proved that PCR fragment length was 857 bp. 1 and 2: Wild type P.gingivalis W83; 3–8: three inoculated P.gingivalis W83 samples for microarray analysis (two columns for each sample)

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