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Pseudomonas atacamensis sp. nov., isolated from the rhizosphere of desert bloom plant in the region of Atacama, Chile

dc.contributor.authorPoblete-Morales M.
dc.contributor.authorCarvajal D.
dc.contributor.authorAlmasia R.
dc.contributor.authorMichea S.
dc.contributor.authorCantillana C.
dc.contributor.authorLevican A.
dc.contributor.authorSilva-Moreno E.
dc.date.accessioned2020-09-02T22:25:53Z
dc.date.available2020-09-02T22:25:53Z
dc.date.issued2020
dc.identifier10.1007/s10482-020-01427-0
dc.identifier.citation113, 8, 1201-1211
dc.identifier.issn00036072
dc.identifier.urihttps://hdl.handle.net/20.500.12728/5822
dc.descriptionThe bacterial strain M7D1T was isolated from samples of the rhizosphere of desert bloom plants on the Atacama region located in northern Chile as part of a study intended to isolate nitrifying bacteria in this adverse environment. It was previously identified as belonging to the Pseudomonas fluorescens group. In this study, the phylogenetic analysis of the 16s RNA, gyrA, rpoB and rpoD genes confirmed that this strain belongs to this group, especially Sub Group (SG) Koreensis, but it represents a potential new species. Additionally, the average nucleotide identity confirmed this as the highest identity value (0.92) with Pseudomonas moraviensis LMG 24280, which is lower than the 0.94 threshold established to classify two strains within the same species. The strain M7D1T shared a similar fatty acids methyl ester profile than the type strains of other Pseudomonas spp. previously described. Furthermore, it can be differentiated phenotypically from other related species of SG P. koreensis. Based on these results, the existence of a new species of Pseudomonas is demonstrated, for which the name Pseudomonas atacamensis is proposed. This strain presented a set of genes associated with plant growth-promoting rhizobacteria and it is a good candidate to be used for recovery of contaminated soils. However, more studies are required to demonstrate whether this bacterium is non-pathogenic, can survive in the presence of toxic compounds and promote growth or help to the stress management of plants. © 2020, Springer Nature Switzerland AG.
dc.language.isoen
dc.publisherSpringer
dc.subjectGenomic taxonomy
dc.subjectHydrogen cyanide
dc.subjectInsecticidal toxin
dc.subjectMultilocus sequence analysis
dc.subjectPGPR
dc.subjectPseudomonadaceae
dc.subjectTccC-type
dc.subjectfatty acid ester
dc.subjectRNA 16S
dc.subjectArticle
dc.subjectbacterial gene
dc.subjectbacterial strain
dc.subjectbacterium isolation
dc.subjectChile
dc.subjectcontrolled study
dc.subjectgyrA gene
dc.subjectnitrifying bacterium
dc.subjectnonhuman
dc.subjectphylogeny
dc.subjectplant growth-promoting bacterium
dc.subjectpriority journal
dc.subjectPseudomonas
dc.subjectPseudomonas atacamensis
dc.subjectPseudomonas fluorescens
dc.subjectPseudomonas koreensis
dc.subjectPseudomonas moraviensis
dc.subjectrhizosphere
dc.subjectrpoB gene
dc.subjectrpoD gene
dc.subjectsoil pollution
dc.titlePseudomonas atacamensis sp. nov., isolated from the rhizosphere of desert bloom plant in the region of Atacama, Chile
dc.typeArticle


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