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Pseudonocardia nigra sp. nov., isolated from Atacama Desert rock

Lookup NU author(s): Hamidah Idris, Dr Imen Nouioui, Professor Alan Bull, Professor Michael Goodfellow


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© 2017 IUMS. Eleven actinobacterial strains were isolated from a rock sample collected in the Atacama Desert. Molecular typing by BOX-PCR divided the strains into three clusters and showed that, although very similar, they were not clones. Three strains, ATK01, ATK03T and ATK17, each representing one of the defined BOX clusters, were chosen for further characterization. Phylogenetic analysis indicated that the strains were related to the genus Pseudonocardia and were recovered in a cluster together with Pseudonocardia bannensis YIM 63101T and Pseudonocardia xinjiangensis AS 4.1538T. Chemotaxonomic analyses confirmed their affiliation to the genus Pseudonocardia but differences were found between the new strains and their closest phylogenetic relatives. Physiological and fatty acid analyses also revealed differences between these strains and their phylogenetic neighbours supporting their status as a distinct species. Based on the overall data, it is proposed that strains ATK01, ATK03T and ATK17 represent a novel species of the genus Pseudonocardia for which the name Pseudonocardia nigra sp. nov. is proposed (type strain ATK03T=DSM 104088T=CECT 9183T).

Publication metadata

Author(s): Trujillo ME, Idris H, Riesco R, Nouioui I, Igual JM, Bull AT, Goodfellow M

Publication type: Article

Publication status: Published

Journal: International Journal of Systematic and Evolutionary Microbiology

Year: 2017

Volume: 67

Issue: 8

Pages: 2980-2985

Print publication date: 01/08/2017

Online publication date: 18/08/2017

Acceptance date: 01/05/2017

ISSN (print): 1466-5026

ISSN (electronic): 1466-5034

Publisher: Microbiology Society


DOI: 10.1099/ijsem.0.002063

PubMed id: 28820114


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