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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 70, Issue 8

Six novel species of the obligate marine actinobacterium , sp. nov., sp. nov., sp. nov., sp. nov., sp. nov. and sp. nov., and emended description of the genus Free

Abstract

Ten representative actinobacterial strains isolated from marine sediments collected worldwide were studied to determine their taxonomic status. The strains were previously identified as members of the genus and shared >99 % 16S rRNA gene sequence similarity to the three currently recognized species. Comparative genomic analyses resulted in the delineation of six new species based on average nucleotide identity and digital DNA–DNA hybridization values below 95 and 70 %, respectively. The species status of the six new groups was supported by a core-genome phylogeny reconstructed from 2106 orthologs detected in 118 publicly available genomes. Chemotaxonomic and physiological studies were used to complete the phenotypic characterization of the strains. The fatty acid profiles contained the major components iso-C, C, iso- and anteiso C. Galactose and xylose were common in all whole-sugar patterns but differences were found between the six groups of strains. Polar lipid compositions were also unique for each species. Distinguishable physiological and biochemical characteristics were also recorded. The names proposed are sp. nov., CNY-202 (=DSM 108615=CECT 9739); sp. nov., CNT-569 (=DSM 108614=CECT 9740); sp. nov., CNY-666 (=DSM 108616=CECT 9738); sp. nov., CNT-150 (=DSM 45549=CECT 9741); sp. nov., CNT-138 (=DSM 45547=CECT 9742); and sp. nov., CNT-148 (=DSM 45548=CECT 9743).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Actinobacteria , obligate marine and Salinispora
Funding
This study was supported by the:
  • Ministerio de Ciencia, Innovación y Universidades (Award PGC2018-096185-B-I00)
    • Principle Award Recipient: Martha E. Trujillo
  • Foundation for the National Institutes of Health (Award 5R01GM085770)
    • Principle Award Recipient: Paul R. Jensen
  • Foundation for the National Institutes of Health (Award 2U19TW007401)
    • Principle Award Recipient: Paul R. Jensen
© 2020 The Authors
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2020-07-23
2024-04-24
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Six novel species of the obligate marine actinobacterium Salinispora, Salinispora cortesiana sp. nov., Salinispora fenicalii sp. nov., Salinispora goodfellowii sp. nov., Salinispora mooreana sp. nov., Salinispora oceanensis sp. nov. and Salinispora vitiensis sp. nov., and emended description of the genus Salinispora
Int J Syst Evol Microbiol 70, 4668 (2020); https://doi.org/10.1099/ijsem.0.004330
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