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Stenotrophomonas bentonitica sp nov., isolated from bentonite formations
Univ Granada, Spain.
Univ Granada, Spain.
Univ Granada, Spain.
Justus Liebig Univ Giessen, Germany.
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2017 (English)In: International Journal of Systematic and Evolutionary Microbiology, ISSN 1466-5026, E-ISSN 1466-5034, Vol. 67, no 8, 2779-2786 p.Article in journal (Refereed) Published
Abstract [en]

A Gram-stain negative, rod-shaped, aerobic bacterial strain, BII-R7(T), was isolated during a study targeting the culture-dependent microbial diversity occurring in bentonite formations from southern Spain. Comparative 16S rRNA gene sequence analysis showed that BII-R7T represented a member of the genus Stenotrophomonas (class Gammaproteobacteria), and was related most closely to Stenotrophomonas rhizophila e-p10(T) (99.2% sequence similarity), followed by Stenotrophomonas pavanii ICB 89(T) (98.5 %), Stenotrophomonas maltophilia IAM 12423(T), Stenotrophomonas chelatiphaga LPM-5(T) and Stenotrophomonas tumulicola T5916-2-1b(T) (all 98.3 %). Pairwise sequence similarities to all other type strains of species of the genus Stenotrophomonas were below 98 %. Genome- based calculations (orthologous average nucleotide identity, original average nucleotide identity, genome-to-genome distance and DNA G+C percentage) indicated clearly that the isolate represents a novel species within this genus. Different phenotypic analyses, such as the detection of a quinone system composed of the major compound ubiquinone Q-8 and a fatty acid profile with iso-C-15:0 and anteiso-C-15:0 as major components, supported this finding at the same time as contributing to a comprehensive characterization of BII-R7(T). Based on this polyphasic approach comprising phenotypic and genotypic/molecular characterization, BII-R7(T) can be differentiated clearly from its phylogenetic neighbours, establishing a novel species for which the name Stenotrophomonas bentonitica sp. nov.is proposed with BII-R7(T) as the type strain (= LMG 29893(T) = CECT 9180(T) = DSM 103927(T)).

Place, publisher, year, edition, pages
2017. Vol. 67, no 8, 2779-2786 p.
Keyword [en]
Stenotrophomonas, BII-R7(T), bentonite, ANI value
National Category
Microbiology Ecology
Research subject
Ecology, Microbiology
Identifiers
URN: urn:nbn:se:lnu:diva-68079DOI: 10.1099/ijsem.0.002016ISI: 000409533100044PubMedID: 28820086OAI: oai:DiVA.org:lnu-68079DiVA: diva2:1143755
Available from: 2017-09-22 Created: 2017-09-22 Last updated: 2017-09-22Bibliographically approved

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Lopez-Fernandez, Margarita
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