The families hahellaceae and litoricolaceae

Abstract

The families Hahellaceae and Litoricolaceae belong to the order Oceanospirillales, within the class Gammaproteobacteria. Litoricolaceae is a monogeneric family, containing only the type genus Litoricola (spp. L. lipolytica and L. marina), while a total of five genera have been assigned to the family Hahellaceae: the type genus Hahella (H. chejuensis, H. ganghwensis and H. antarctica), Zooshikella (Z. ganghwensis), Halospina (H. denitrificans), Endozoicomonas (E. elysicola and E. montiporae) and Kistimonas (K. asteriae). All known species of these genera are Gram-negative rod-shaped cells, with an absolute NaCl requirement for growth. Growth occurs aerobically; however, some species are facultative anaerobes.