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ViableCytophaga-like Bacterium in the 0.2 μm-Filtrate Seawater

Authors
Journal
Systematic and Applied Microbiology
0723-2020
Publisher
Elsevier
Publication Date
Volume
24
Issue
4
Identifiers
DOI: 10.1078/0723-2020-00059
Keywords
  • Cytophaga-Like Bacterium
  • Microscilla
  • Ultramicrocells
  • Nanobacteria

Abstract

Summary A strain of the Cytophaga-like bacterium (CLB), Nano-1, was isolated from the 0.2 μm-filtrate of natural seawater. Both cellular fatty acid and 16S rDNA sequence analyses indicated that Nano-1 is closely affiliated to the marine gliding CLB genus, Microscilla. Nano-1 was observed to undergo cyclic morphological change typical of the genus Microscilla, and sub-0.2-μm cells were formed in the late stationary phase. The sub-0.2-μm cells were repeatedly revived and subcultured. Formation of the sub-0.2-μm cells seems to be adaptive for oligotrophic growth and starvation survival.

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