Isolated from the phycosphere of the diatom Actinocyclus curvatulus obtained from a surface seawater sample collected in the Yellow Sea (35 deg 55 min 31 sec N, 120 deg 24 min 57 sec E), China.
Opacimonas immobilis sp. nov., a novel non-flagellated Alteromonadaceae species with the smallest genome isolated from the phycosphere of the diatom Actinocyclus curvatulus.