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PolyangiumRANK: GenusTAXONOMY: Proteobacteria -> delta/epsilon subdivisions -> Deltaproteobacteria -> Myxococcales -> Sorangiineae -> Polyangiaceae -> Polyangium OVERVIEW: Vegetative cells (Figure 1) slender, cylindrical rods with blunt, rounded ends. Fruiting bodies consist of spherical or polyhedral sporangioles, usually in sedentary sori, on agar plates often deep within the substrate, sometimes surrounded by a prominent slime layer, or matrix. Myxospores morphologically similar to vegetative cells but optically refractile. The swarm colonies (Figure 2) often etch the agar producing deep tracks and tunnels, holes, and pits; often penetrate the agar deeply with a curtain-like swarm edge; swarms often not coherent but broken up into many small, scattered groups of cells that migrate independently, like pseudoplasmodia.Type species: Polyangium vitellinum |