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Silvanigrella aquatica is a bacterial species of the phylum Bdellovibrionota. The type strain was isolated from the small lake Nonnenmattweiher located in the Southern Black Forest in Germany. This species is currently the only species in the genus Silvanigrella, which is the only genus in the family Silvanigrellaceae, which is the only family in the order Silvanigrellales. The order Silvanigrellales is one of only two orders in the class Oligoflexia. The type strain MWH-Nonnen-W8red is remarkable due to its low GC content, its pigmentation and its plastic morphology. Of further interest is the relative close relationship of S. aquatica to "Spirobacillus cienkowskii" (Metchnikoff 1889) known as pathogens of daphnids (Daphnia), which are commonly called water fleas. However, S. aquatica is assumed to be a non-pathogenic free-living species. The genome of the type strain was sequenced,

References

1. ^ Hahn MW, Schmidt J, Koll U, Rohde M, Verbarg S, Pitt A, Nakai R, Naganuma T, Lang E. (2017). "Silvanigrella aquatica gen. nov., sp. nov., isolated from a freshwater lake, description of Silvanigrellaceae fam. nov. and Silvanigrellales ord. nov., reclassification of the order Bdellovibrionales in the class Oligoflexia, reclassification of the families Bacteriovoracaceae and Halobacteriovoraceae in the new order Bacteriovoracales ord. nov., and reclassification of the family Pseudobacteriovoracaceae in the order Oligoflexales". Int J Syst Evol Microbiol. 67: 2555–2568. doi:10.1099/ijsem.0.001965. PMC 5627705. PMID 28771119.
2. BacDive https://bacdive.dsmz.de/strain/140357
3. ENA (https://www.ebi.ac.uk/ena/data/view/CP017834)
4. IMG (https://img.jgi.doe.gov/cgi-bin/m/main.cgi?section=TaxonDetail&page=taxonDetail&taxon_oid=2767802763)

External links

• Type strain of Silvanigrella aquatica at BacDive - the Bacterial Diversity Metadatabase

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• Bacteria described in 2017
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