Aquabacter spiritensis, gen. nov., sp. nov. an aerobic, gas-vacuolate aquatic bacterium

Abstract

A gram-negative, rod-shaped, gas-vacuolate, aerobic, heterotrophic bacterium was isolated from Spirit Lake, Washington. It was further characterized by phase-contrast and electron microscopy and phenotypic tests. The isolate does not utilize carbohydrates. Deoxyribonucleic acid-ribosomal ribonucleic acid (rRNA) hybridizations showed that this bacterium is a member of rRNA superfamily IV where it occupies a separate position on the Azorhizobium caulinodans rRNA sub-branch which, is part of an rRNA cluster containing also the Beijerinckia, the Bradyrhizobium japonicum and the Rhodopseudomonas palustris sub-branches. Its relationship to other gas-vacuolated genera within rRNA superfamily IV is discussed. A new genus Aquabacter with one species Aquabacter spiritensis is proposed. The type strain is strain SPL-1 (=ATCC 43981=LMG 8611). © 1991 Springer-Verlag.

Department(s)

Biology

Document Type

Article

DOI

https://doi.org/10.1007/BF00248607

Keywords

Aquabacter, Aquatic bacterium, Gas vacuoles

Publication Date

1-1-1991

Journal Title

Archives of Microbiology

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