Bacteroides and Flavobacterium are both Gram-negative bacteria that can be either motile or non-motile.
Acidobacteria are a newly formed phylum of bacteria that are physiologically diverse and abundant in soil environments.
Cytophaga are a type of bacteria characterized as Gram-negative, rod shaped bacteria that utilize a gliding mechanism for locomotion.
Bacteria categorized under the Phylum Bacteroidetes and Phlyum Chlorobi are closely related base on comparative genomic analysis.
Fusobacterium are anaerobic, non-spore forming, gram-negative bacteria that are associated with periodontal disease and Lemierre's syndrome.
Spirochaetes are characterized by the presence of a double-membrane and long, spiral-shaped cells that are chemoheterotrophic.