| neisseria oralis sp. nov., isolated from healthy gingival plaque and clinical samples. | a polyphasic analysis was undertaken of seven independent isolates of gram-negative cocci collected from pathological clinical samples from new york, louisiana, florida and illinois and healthy subgingival plaque from a patient in virginia, usa. the 16s rrna gene sequence similarity among these isolates was 99.7-100 %, and the closest species with a validly published name was neisseria lactamica (96.9 % similarity to the type strain). dna-dna hybridization confirmed that these isolates are of th ... | 2013 | 22798652 |