Topic
Streptomyces arcticus
About: Streptomyces arcticus is a research topic. Over the lifetime, 2 publications have been published within this topic receiving 9 citations.
Papers
TL;DR: On the basis of these phenotypic, phylogenetic and chemotaxonomic characteristics, strain ZLN234T is the type strain of a novel species of the genus StrePTomyces, for which the name Streptomyces arcticus sp.
Abstract: Actinomycete strain ZLN234T was isolated from a frozen soil sample, which was collected from a glacier front in the Arctic. Chemotaxonomic and morphological characteristics were found to be typical of members of the genus Streptomyces. The strain formed a distinct phyletic line in the 16S rRNA gene tree and was closely related to Streptomyces olivochromogenes ATCC 3336T (98.63 % similarity) and Streptomyces aureus B7319T (98.56 %). Phylogenetic analysis based on the gyrB gene also showed clearly that strain ZLN234T was different from all recognized Streptomyces species. The whole-cell sugars were galactose, glucose, ribose and rhamnose. The whole-cell-wall amino acids included alanine, glutamine, glycine and meso-diaminopimelic acid with a minor amount of ll-diaminopimelic acid. The characteristic polar lipids were identified as diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannosides and unknown phospholipids. The major menaquinones were MK-9(H10), MK-9(H8) and MK-9(H4). The major cellular fatty acids comprised anteiso-C15 : 0, iso-C16 : 0 and C16 : 0 with a small amount of iso-C16 : 1ω7 and anteiso-C14 : 0. The DNA G+C content of strain ZLN234T was 77.5 mol%. On the basis of these phenotypic, phylogenetic and chemotaxonomic characteristics, strain ZLN234T ( = CCTCC AA 2015005T = DSM 100713T) is the type strain of a novel species of the genus Streptomyces, for which the name Streptomyces arcticus sp. nov. is proposed.
11 citations
TL;DR: A novel actinomycete was isolated from rhizosphere soil of Fagopyrum dibotrys collected from Shuangfeng, Hunan Province, PR China and should represent a novel species of the genus Streptomyces, with the suggested name StrePTomyces fagopyri sp.
Abstract: A novel actinomycete, designated strain QMT-28T, was isolated from rhizosphere soil of Fagopyrum dibotrys collected from Shuangfeng, Hunan Province, PR China. Strain QMT-28T grew well on International Streptomyces Project series media and formed well-developed, branched substrate hyphae and aerial mycelium that differentiated into loose spiral spore chains consisting of cylindrical spores with smooth surfaces. The diagnostic diamino acid was ll-diaminopimelic acid and the whole-cell sugars were galactose and glucose. The predominant fatty acids were C18 : 1 cis9, summed feature 6 (C18 : 2 cis 9,12/C18 : 0 a) and C16 : 0. The polar lipids included diphosphatidylglycerol, hydroxy phospatidylethanolamine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannosides, phospholipids of unknown structure containing glucosamine and several unidentified phospholipids. The major menaquinones were MK-9, MK-9(H2), MK-9(H4), MK-9(H6) and MK-9(H8). The genome size of strain QMT-28T was about 8.7 Mbp with a G+C content of 71.2 mol%. Phylogenetic analysis showed that the novel strain was closely related to Streptomyces olivochromogenes DSM 40451T (99.5 % similarity), Streptomyces mirabilis NBRC 13450T (98.9 %), Streptomyces kanamyceticus NBRC 13414T (98.9 %), Streptomyces kaempferi I37T (98.9 %) and Streptomyces arcticus ZLN234T (98.8 %). However, the average nucleotide identity values, the digital DNA-DNA hybridization values and the multilocus sequence analysis evolutionary distances between this strain and closely related strains showed that it belonged to a distinct species. In addition, these results were also supported by differences in the phenotypic characteristics between QMT-28T and five closely related type strains. Consequently, strain QMT-28T should represent a novel species of the genus Streptomyces, with the suggested name Streptomyces fagopyri sp. nov. The type strain is QMT-28T (=CICC 24808T=JCM 33796T).
4 citations
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Performance Metrics
| Year | Papers |
|---|---|
| 2020 | 1 |
| 2016 | 1 |