Deeply branching <i>Bacillota</i> species exhibit atypical Gram-negative staining.

ABSTRACT: The Gram staining method differentiates bacteria based on their cell envelope structure, with the monoderm and diderm cell envelope types traditionally being synonymous with Gram-positive and Gram-negative stain results, respectively. Monoderms have a single phospholipid membrane surrounded by a thick layer of peptidoglycan, while diderms have a lipopolysaccharide outer membrane exterior to a thin peptidoglycan layer. The Bacillota (formerly Firmicutes) phylum has members with both cell wall types, and recent phylogenetic analyses have shown that monoderm Bacillota evolved from diderm ancestors on multiple occasions. Here, we compiled Gram staining and ultrastructural data for Bacillota species with complete genomes to further investigate the evolution of Gram-p

SUBMITTER: Choi JK 

PROVIDER: S-EPMC11448272 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature