Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Dec 2;11:596459. doi: 10.3389/fmicb.2020.596459

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2020 Guo, Wang, Wang, Jin and Wang.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Ability of P. gingivalis to escape antibiotic and serum killing effects. (A) Porphyromonas gingivalis was separated and coated on brain heart infusion (BHI) plates. For the assay, 6-mm diameter cefazolin (30 μg/tablet) and sulfamethoxazole (300 μg/tablet) drug-sensitive paper was placed on BHI plates for 7 days. The black dotted line indicates the inhibition zone. (B) The diameters of the inhibition zone were measured and compared. (C) After co-culturing with serum for 1 h, the survival rates was compared. Viable counts were based on CFU. The calculation formula is as follows: survival rate (%) = (number of bacteria surviving after fresh serum co-incubation/number of bacteria surviving after inactivated serum co-incubation) × 100%. ^*p < 0.05; ^**p < 0.01; ^***p < 0.001; NS p > 0.05. LH, low heme; HH, high heme; Coc, coculture; and Mon, monoculture.