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Volume 67, Issue 6

sp. nov. isolated from the rhizosphere of Free

Abstract

A bacterial strain, designated RA6, was isolated from the rhizosphere of . Phylogenetic analyses based on 16S rRNA gene sequence placed the isolate into the genus within a cluster encompassing the type strains of , , and , which presented greater than 97 % sequence similarity with respect to strain RA6. DNA–DNA hybridization studies showed average relatedness ranging from of 11 to 18 % between these species of the genus and strain RA6. Catalase and oxidase were positive. Casein was hydrolysed but gelatin and starch were not. Ubiquinone 8 was the major respiratory quinone detected in strain RA6 together with low amounts of ubiquinones 7 and 9. The major fatty acids were those from summed feature 3 (Cω7/C ω6) and C. The predominant polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. Phylogenetic, chemotaxonomic and phenotypic analyses showed that strain RA6 should be considered as a representative of a novel species of genus , for which the name sp. nov. is proposed. The type strain is RA6 (=LMG 29737= CECT 9171).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Cistus ladanifer , Delftia and rhizosphere
© 2017 IUMS
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2017-06-01
2024-04-19
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Delftia rhizosphaerae sp. nov. isolated from the rhizosphere of Cistus ladanifer
Int J Syst Evol Microbiol 67, 1957 (2017); https://doi.org/10.1099/ijsem.0.001892
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