title: Correlation between Possession of a Respiration-Dependent Na Pump and Na Requirement for Growth of Marine Bacteria.
abstract: The possession of a respiration-dependent primary sodium pump and the requirement of Na for growth were investigated in bacterial isolates from marine environments. The bacteria in which NADH oxidase specifically required Na for maximum activity were believed to possess a primary sodium pump. All bacteria that failed to grow without the addition of NaCl possessed a primary Na pump. All bacteria that had no primary Na pump grew without additional NaCl. The primary Na pump seems to be involved in the Na requirement of marine bacteria, and this can be regarded as a criterion for the definition of marine bacteria.
authors.affiliation: Ocean Research Institute, University of Tokyo, Minamidai, Nakano, Tokyo 164, Japan.
authors.forename: Suwan
authors.initials: S
authors.lastname: Oh
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Kogure
authors.forename: Kouichi
authors.initials: K
authors.lastname: Ohwada
authors.forename: Usio
authors.initials: U
authors.lastname: Simidu