A Plaque Microbiome Community (image) Forsyth Institute Share Print E-Mail Caption "Hedgehog" structure seen in dental plaque from a healthy subject. Corynebacteria, magenta, form the core of the structure; other bacteria inhabit the structure at characteristic positions. Credit CREDIT: Mark Welch et al, PNAS, 2016 Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.