Domain Bacteria Cause disease in humans 。Proteobacteria Obligate Live in insects intracellular + parasite ·Mythical Wolbachia Have prosthecae Greek god, Cause Survive in spotted phagocytes Proteus,who Caulobacter Chemoautotrophic fevers + Hyphomicrobium 入 could Brucella Bartonella Plant Nitrobacter Rickettsia Ehrlichia assume pathogen many shapes Agrobacterium Fix nitrogen Gram- × In legume Acetobacter S negative roots Gluconobacter Rhizobium Azospirillum• Proteobacteria • Mythical Greek god, Proteus, who could assume many shapes • Gram￾negative Domain Bacteria