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Allokutzneria multivorans sp. nov., an actinomycete isolated from soil.

ABSTRACT: An actinomycete with well-branched mycelia, designated strain YIM 120521(T), was isolated from soil collected from the banks of the Nujiang River, Yunnan Province, south-west China. Both aerial and substrate mycelia were white and non-pigmented. Growth was observed at 4-40 °C (optimum 28 °C), pH 6.0-9.0 (optimum 7.0) and in 0-4?% (w/v) NaCl (optimum 0?%). Analysis of the 16S rRNA gene sequence revealed that strain YIM 120521(T) belongs to the genus Allokutzneria with the highest sequence similarity to Allokutzneria albata DSM 44149(T) (98.4?%). However, the mean DNA-DNA relatedness value between the two strains was below 70?%. Chemotaxonomic characteristics supported the inclusion of strain YIM 120521(T) in the genus Allokutzneria, with rhamnose, arabinose, glucose, galactose and mannose as the whole-cell sugars, meso-diaminopimelic acid as the cell-wall diamino acid and MK-9(H4) as the predominant menaquinone. On the basis of physiological, biochemical and chemotaxonomic characteristics, strain YIM 120521(T) is considered to represent a novel species of the genus Allokutzneria, for which the name Allokutzneria multivorans sp. nov. is proposed. The type strain is YIM 120521(T) (?=?JCM 17342(T)?=?DSM 45532(T)).

SUBMITTER: Cao YR

PROVIDER: S-EPMC3836494 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature

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Allokutzneria multivorans sp. nov., an actinomycete isolated from soil.

Cao Yan-Ru YR Chen Xiu X Jiang Yi Y Wang Li-Song LS Jiang Cheng-Lin CL

International journal of systematic and evolutionary microbiology 20130628 Pt 11

An actinomycete with well-branched mycelia, designated strain YIM 120521(T), was isolated from soil collected from the banks of the Nujiang River, Yunnan Province, south-west China. Both aerial and substrate mycelia were white and non-pigmented. Growth was observed at 4-40 °C (optimum 28 °C), pH 6.0-9.0 (optimum 7.0) and in 0-4 % (w/v) NaCl (optimum 0 %). Analysis of the 16S rRNA gene sequence revealed that strain YIM 120521(T) belongs to the genus Allokutzneria with the highest sequence similar ...[more]

PMID: 23811139

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Project description:A polyphasic study was designed to resolve the taxonomic position of isolate MGRD01-02T which was recovered from an acidic hot spring in Indonesia and assigned to the genus Actinospica. Phylogenetic analyses based on 16S rRNA gene sequences show that the isolate is most closely related to the type strains of Actinospica acidiphila (98.5%), Actinospica robiniae (97.8%) and Actinospica durhamensis (96.8%). Morphological and chemotaxonomic data underpin the assignment of the isolate to the genus Actinospica as it forms an extensively branched substrate mycelium which carries tufts of white aerial hyphae that differentiate into straight to flexuous chains of cylindrical spores with faint rugose surfaces, contains 2,6-diamino-3-hydroxydiaminopimelic acid in the peptidoglycan, mixtures of hydrogenated menaquinones with nine isoprene units, iso-C 15:O and iso-C 16:O as major fatty acids and phosphatidylethanolamine as the diagnostic phospholipid. Whole-genome sequence analyses show that the isolate, A. durhamensis CSCA 57T and Actinocrinis puniceicyclus DSM 45168T have genome sizes of 7.9, 9.6 and 6.7 Mbp, respectively. A phylogenomic tree shows that they form distinct branches in a well-supported clade, a result supported by associated phenotypic data. Average nucleotide identity and digital DNA:DNA hybridization similarities are below the recommended thresholds for assigning strains to the same species; they also indicate that isolate MGRD01-02T is most closely related to the A. durhamensis and A. robiniae strains. Corresponding amino acid identity and conserved protein data not only support these relationships but also confirm the taxonomic integrity of the genus Actinocrinis. Based on these results, it is proposed that isolate MGRD01-02T (= CCMM B1308T = ICEBB-09T = NCIMB 15218T) be classified in the genus Actinospica as Actinospica acidithermotolerans sp. nov. The draft genome of the isolate and its closest phylogenomic neighbours contain biosynthetic gene clusters with the potential to produce new natural products, notably antibiotics.

Dataset Information

Allokutzneria multivorans sp. nov., an actinomycete isolated from soil.

Publications

Allokutzneria multivorans sp. nov., an actinomycete isolated from soil.

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