Bacteria Purple and green(Anoxygenic Phototrophic Bacterial Cyanobacteria Prochlorophytes Chemolithotrophs: Nitrifying Bacteria Chemolithotrophs: Sulfur-and Iron-Oxidizing Bacteria Chemolithotrophs: Hydrogen-Oxidizing Bacteria Methanotrophs and methylotrophs Sulfate and sulfur-Reducing bacteria Homoacetogenic Bacteria Budding and appendaged (prosthecate) bacteria la Spirochetes Gliding bacteria Sheathed bacteriaBacteria Purple and Green (Anoxygenic Phototrophic Bacteria) Cyanobacteria Prochlorophytes Chemolithotrophs: Nitrifying Bacteria Chemolithotrophs: Sulfur- and Iron-Oxidizing Bacteria Chemolithotrophs: Hydrogen-Oxidizing Bacteria Methanotrophs and Methylotrophs Sulfate and Sulfur-Reducing Bacteria Homoacetogenic Bacteria Budding and Appendaged (Prosthecate) Bacteria Spirilla Spirochetes Gliding Bacteria Sheathed Bacteria