Pasteuria "Pasteurieae" Trevisan 1889 The Pasteuriaceae are a family of nonmotile Gram-positive bacteria.

[1] Species in this family produce a septate mycelium with one refractile endospore.

The mycelium grows bigger on one end to form sporangia and sometimes endospores.

Species of the family of Pastueriaceae are endoparasitic in plant, soil, and freshwater invertebrates.

[1][2] Bacteria of the Pasteuriaceae family are endoparasitic within nematodes or cladoceran hosts.