AI Article Synopsis

  • The study investigates the ecological distribution of the unique bacterium Symbiobacterium thermophilum, often found in seashells and various marine samples.
  • Researchers successfully isolated two new strains of Symbiobacterium from oyster shells, revealing potential diversity within this group.
  • Additional isolates, Ureibacillius spp., exhibited characteristics that aid the growth of S. thermophilum, indicating a possible symbiotic relationship.

Article Abstract

We study the ecological distribution of a unique syntrophic bacterium, Symbiobacterium thermophilum, and related bacteria. In this study, we found that they were frequently obtained from seashells and several marine samples. Symbiobacterium also grew from sterilized oyster shells incubated undersea for 2 or 3 months on the coast of Shimoda, Shizuoka, Japan. 16S rRNA gene-based phylogeny of the clones obtained from the Symbiobacterium-positive cultures demonstrated the potential diversity of this bacterial group, which constitutes a distinct clade between Actinobacteria and Firmicutes. We successfully isolated two new Symbiobacterium strains from oyster shells. 16S rRNA gene-based phylogeny indicated that one belongs to S. thermophilum, and that the other is affiliated with a different species. We also isolated Ureibacillius spp., which showed activity supporting the growth of S. thermophilum.

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http://dx.doi.org/10.1271/bbb.70619DOI Listing

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