Genomic insight into the Streptomyces aurantiacus clade: reclassification of Streptomyces ederensis as a later heterotypic synonym of Streptomyces umbrinus and Streptomyces glomeroaurantiacus as a later heterotypic synonym of Streptomyces aurantiacus

2021 ◽  
Vol 71 (5) ◽  
Author(s):  
Hayrettin Saygin
Keyword(s):  
Type Species ◽  
Sequence Similarity ◽  
Gene Clusters ◽  
Rrna Gene ◽  
Test Results ◽  
Biosynthetic Gene Clusters ◽  
Content Type ◽  
Link Type ◽  
Genome Features ◽  
Type Strains

The taxonomic relationships and genome features of the type strains in the Streptomyces aurantiacus clade, including Streptomyces aurantiacus , Streptomyces ederensis , Streptomyces glomeroaurantiacus , Streptomyces umbrinus , Streptomyces phaeochromogenes , Streptomyces dioscori and Streptomyces tauricus , were investigated. Type strains of these species shared high 16S rRNA gene sequence similarity to each other. Multilocus sequence analysis (MLSA) based on atpD, gyrB, recA, rpoB and trpB genes revealed that S. ederensis and S. umbrinus belong to the same species. Also, S. aurantiacus and S. glomeroaurantiacus belong to the same species, but the remaining species are not closely related to each other. MLSA results were verified by the results average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) analyses; while the ANI and dDDH values between S. ederensis and S. umbrinus are 98.1 and 85.4 %, respectively, these values between S. aurantiacus and S. glomeroaurantiacus are 98.9 and 90.7 %, respectively. The presence of almost the same set of biosynthetic gene clusters and highly consistent phenotypic test results also supported the synonymy between S. ederensis and S. umbrinus , as well as between S. aurantiacus and S. glomeroaurantiacus . Therefore, S. ederensis should be reclassified as a later heterotypic synonym of S. umbrinus and S. glomeroaurantiacus should be reclassified as a later heterotypic synonym of S. aurantiacus .

Micromonospora humida sp. nov., exhibiting antimicrobial potential, isolated from riverside soil

2021 ◽  
Vol 71 (12) ◽  
Author(s):  
Jun Sik Ra ◽  
Min Ji Kim ◽  
Dong Hyeon Lee ◽  
Ji Won Jeong ◽  
Seung Bum Kim
Keyword(s):  
Dna Hybridization ◽  
Type Species ◽  
Gene Clusters ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Biosynthetic Gene Clusters ◽  
Content Type ◽  
Link Type ◽  
Type Strains ◽  
The 16S Rrna Gene

An actinobacterial strain designated MMS20-R1-14T was isolated from a riverside soil sample. Colonies on agar plates were orange to strong orange brown in colour, which later became black. The cells grew at 10–40 °C (optimum, 37 °C), pH 5.0–11.0 (pH 8.0) and in the presence of 0–4 % NaCl (1 %). The 16S rRNA gene sequence of strain MMS20-R1-14T showed highest similarities to Micromonospora wenchangensis CCTCC AA 2012002T (99.51 %) and Micromonospora rifamycinica AM105T (99.37 %). The orthoANI values between strain MMS20-R1-14T and the two type strains were 95.72 and 90.99 %, and the digital DNA–DNA hybridization values were 63.6 and 40.8 %, respectively, thus confirming the distinction of strain MMS20-R1-14T from its mostly related species. The DNA G+C content of strain MMS20-R1-14T was 72.9 mol%. The strain contained meso-diaminopimelic acid as the major cell-wall amino acid, and the characteristic whole-cell sugars were arabinose, xylose, glucose, ribose and rhamnose. The main cellular fatty acids were C18 : 1  ω9c, iso-C15 : 0 and iso-C16 : 0, the diagnostic polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine, and the predominant menaquinones were MK-10(H4) and MK-10(H6), all of which were consistent with those of Micromonospora . Strain MMS20-R1-14T showed antimicrobial activity against a range of bacterial and yeast species. The genome of the strain was found to contain 33 potential biosynthetic gene clusters for secondary metabolites, thus showing a high potential as a producer of bioactive compounds. On the basis of these phenotypic, genotypic and chemotaxonomic data, strain MMS20-R1-14T merits recognition as representing a novel species of the genus Micromonospora , for which the name Micromonospora humida sp. nov. (type strain=MMS20 R1-14T=KCTC 49541T=JCM 34494T) is proposed.

scholarly journals Reclassification of Streptomyces fulvissimus as a later heterotypic synonym of Streptomyces microflavus

2020 ◽  
Vol 70 (9) ◽  
pp. 5156-5162 ◽  
Author(s):  
Hisayuki Komaki ◽  
Tomohiko Tamura
Keyword(s):  
Type Species ◽  
Gene Sequence ◽  
Gene Clusters ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Biosynthetic Gene Clusters ◽  
Phenotypic Data ◽  
Content Type ◽  
Link Type ◽  
Type Strains

We investigated the taxonomic relationships among Streptomyces fulvissimus , Streptomyces fulvorobeus and Streptomyces microflavus . These type strains shared the same 16S rRNA gene sequence. Digital DNA–DNA relatedness and average nucleotide identity analyses using whole genome sequences suggested that S. fulvissimus and S. microflavus belong to the same genomospecies, whereas S. fulvorobeus does not. In addition to previously reported phenotypic data, the presence of almost the same set of secondary metabolite-biosynthetic gene clusters for polyketides and nonribosomal peptides also supported the synonymy between S. fulvissimus and S. microflavus . Therefore, S. fulvissimus should be reclassified as a later heterotypic synonym of S. microflavus .

scholarly journals Burkholderia insulsa sp. nov., a facultatively chemolithotrophic bacterium isolated from an arsenic-rich shallow marine hydrothermal system

2015 ◽  
Vol 65 (Pt_1) ◽  
pp. 189-194 ◽  
Author(s):  
Antje Rusch ◽  
Shaer Islam ◽  
Pratixa Savalia ◽  
Jan P. Amend
Keyword(s):  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
The Novel ◽  
Carbohydrate Utilization ◽  
Content Type ◽  
Link Type ◽  
Optimum Ph ◽  
Shallow Marine Hydrothermal System ◽  
Type Strains

Enrichment cultures inoculated with hydrothermally influenced nearshore sediment from Papua New Guinea led to the isolation of an arsenic-tolerant, acidophilic, facultatively aerobic bacterial strain designated PNG-AprilT. Cells of this strain were Gram-stain-negative, rod-shaped, motile and did not form spores. Strain PNG-AprilT grew at temperatures between 4 °C and 40 °C (optimum 30–37 °C), at pH 3.5 to 8.3 (optimum pH 5–6) and in the presence of up to 2.7 % NaCl (optimum 0–1.0 %). Both arsenate and arsenite were tolerated up to concentrations of at least 0.5 mM. Metabolism in strain PNG-AprilT was strictly respiratory. Heterotrophic growth occurred with O2 or nitrate as electron acceptors, and aerobic lithoautotrophic growth was observed with thiosulfate or nitrite as electron donors. The novel isolate was capable of N2-fixation. The respiratory quinones were Q-8 and Q-7. Phylogenetically, strain PNG-AprilT belongs to the genus Burkholderia and shares the highest 16S rRNA gene sequence similarity with the type strains of Burkholderia fungorum (99.8 %), Burkholderia phytofirmans (98.8 %), Burkholderia caledonica (98.4 %) and Burkholderia sediminicola (98.4 %). Differences from these related species in several physiological characteristics (lipid composition, carbohydrate utilization, enzyme profiles) and DNA–DNA hybridization suggested the isolate represents a novel species of the genus Burkholderia , for which we propose the name Burkholderia insulsa sp. nov. The type strain is PNG-AprilT ( = DSM 28142T = LMG 28183T).

Namhaeicola litoreus gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from seawater

2012 ◽  
Vol 62 (Pt_9) ◽  
pp. 2163-2168 ◽  
Author(s):  
Yong-Taek Jung ◽  
Ji-Hoon Kim ◽  
So-Jung Kang ◽  
Tae-Kwang Oh ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
The Family ◽  
Type Strains

A Gram-staining-negative, non-flagellated, non-gliding and pleomorphic bacterial strain, designated DPG-25T, was isolated from seawater in a seaweed farm in the South Sea in Korea and its taxonomic position was investigated by using a polyphasic approach. Strain DPG-25T grew optimally at 25 °C, at pH 7.0–7.5 and in the presence of 2 % (w/v) NaCl. Flexirubin-type pigments were not produced. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain DPG-25T formed a cluster with the type strains of Actibacter sediminis , Aestuariicola saemankumensis and Lutimonas vermicola . Strain DPG-25T exhibited 16S rRNA gene sequence similarity values of 95.3, 93.1 and 93.6 % to the type strains of Actibacter sediminis , Aestuariicola saemankumensis and L. vermicola , respectively. Strain DPG-25T contained MK-6 as the predominant menaquinone and iso-C15 : 0 and iso-C17 : 0 3-OH as the major fatty acids. The major polar lipids detected in strain DPG-25T were phosphatidylethanolamine and one unidentified lipid. The DNA G+C content was 39.9 mol%. Differential phenotypic properties and the phylogenetic distinctiveness of strain DPG-25T demonstrated that this strain is distinguishable from Actibacter sediminis , Aestuariicola saemankumensis and L. vermicola . On the basis of the data presented here, strain DPG-25T represents a novel species in a novel genus of the family Flavobacteriaceae , for which the name Namhaeicola litoreus gen. nov., sp. nov. is proposed. The type strain of Namhaeicola litoreus is DPG-25T ( = KCTC 23702T  = CCUG 61485T).

scholarly journals Erythrobacter pelagi sp. nov., a member of the family Erythrobacteraceae isolated from the Red Sea

2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1348-1353 ◽  
Author(s):  
Hui-xian Wu ◽  
Pok Yui Lai ◽  
On On Lee ◽  
Xiao-jian Zhou ◽  
Li Miao ◽  
...  
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Red Sea ◽  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Phenotypic Properties ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A novel Gram-negative, aerobic, catalase- and oxidase-positive, non-sporulating, non-motile, rod-shaped bacterium, designated strain UST081027-248T, was isolated from seawater of the Red Sea. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain UST081027-248T fell within the genus Erythrobacter . Levels of 16S rRNA gene sequence similarity between the novel strain and the type strains of Erythrobacter species ranged from 95.3 % (with Erythrobacter gangjinensis ) to 98.2 % (with Erythrobacter citreus ). However, levels of DNA–DNA relatedness between strain UST081027-248T and the type strains of closely related species were below 70 %. Optimal growth of the isolate occurred in the presence of 2.0 % NaCl, at pH 8.0–9.0 and at 28–36 °C. The isolate did not produce bacteriochlorophyll a. The predominant cellular fatty acids were C17 : 1ω6c, summed feature 8 (C18 : 1ω6c and/or C18 : 1ω7c) and C15 : 0 2-OH. The genomic DNA G+C content of strain UST081027-248T was 60.4 mol%. Phenotypic properties and phylogenetic distinctiveness clearly indicated that strain UST081027-248T represents a novel species of the genus Erythrobacter , for which the name Erythrobacter pelagi sp. nov. is proposed. The type strain is UST081027-248T ( = JCM 17468T = NRRL 59511T).

Tsuneonella suprasediminis sp. nov., isolated from the Pacific Ocean

2019 ◽  
Vol 71 (3) ◽  
Author(s):  
Yan Gao ◽  
Guangyu Li ◽  
Chen Fang ◽  
Zongze Shao ◽  
Yue-Hong Wu ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Type Species ◽  
Sequence Similarity ◽  
Cellular Fatty Acid ◽  
Rrna Gene ◽  
Overlying Water ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A Gram-stain-negative, rod-shaped and aerobic bacterial strain, named Ery12T, was isolated from the overlying water of the Lau Basin in the Southwest Pacific Ocean. Strain Ery12T showed high 16S rRNA gene sequences similarity to Tsuneonella flava MS1-4T (99.9 %), T. mangrovi MCCC 1K03311T (98.1 %), Altererythrobacter ishigakiensis NBRC 107699T (97.3 %) and exhibited ≤97.0 % sequence similarity with other type strains of species with validly published names. Growth was observed in media with 0–10.0 % NaCl (optimum 0–1.0 %, w/v), pH 5.0–9.5 (optimum 6.0–7.0) and 10–42 °C (optimum 30–37 °C). The predominant respiratory quinone was ubiquinone 10 (Q-10). The major cellular fatty acid was summed feature 8 (C18 : 1  ω7c and/or C18 : 1  ω6c). The major polar lipids were sphingoglycolipid, phosphatidyglycerol, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, three unidentified glycolipids, one unidentified aminoglycolipid and one unidentified lipid. The DNA G+C content was 60.8 %. The ANI and in silico DDH values between strain Ery12T and the type strains of its closely related species were 71.0- 91.8 % and 19.5- 44.6 %, respectively. According to the phenotypic, chemotaxonomic, phylogenetic and genomic data, strain Ery12T represents a novel species of the genus Tsuneonella , for which the name Tsuneonella suprasediminis is proposed. The type strain is Ery12T (=CGMCC 1.16500 T=MCCC 1A04421T=KCTC 62388T). We further propose to reclassify Altererythrobacter rhizovicinus and Altererythrobacter spongiae as Pelagerythrobacter rhizovicinus comb. nov. and Altericroceibacterium spongiae comb. nov., respectively.

scholarly journals Streptomyces catbensis sp. nov., isolated from soil

2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 2146-2151 ◽  
Author(s):  
Yayoi Sakiyama ◽  
Nguyen M. Giang ◽  
Shinji Miyadoh ◽  
Dao Thi Luong ◽  
Duong Van Hop ◽  
...  
Keyword(s):  
Type Species ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Biochemical Traits ◽  
Content Type ◽  
Link Type ◽  
Type Strains ◽  
Physiological And Biochemical

Strain VN07A0015T was isolated from soil collected on Cat Ba Island, Vietnam. The taxonomic position of strain VN07A0015T was near Streptomyces aomiensis M24DS4T (98.5 % 16S rRNA gene sequence similarity) and Streptomyces scabrisporus NBRC 100760T (95.6 %), and it clustered within them; however, this cluster was distant from the type strains of other species of the genus Streptomyces . The aerial mycelia of strain VN07A0015T were greyish and formed imperfect spiral spore chains (retinaculiaperti type) with smooth-surfaced spores. The morphological features of strain VN07A0015T were different from those of the type strains of S. aomiensis and S. scabrisporus . The chemotaxonomic characteristics of strain VN07A0015T were typical for all members of the genus Streptomyces , which possessed ll-type diaminopimelic acid, menaquinone MK-9(H6, H8) and the major fatty acids iso-C16 : 0 and iso-C15 : 0. DNA–DNA relatedness between strain VN07A0015T and S. aomiensis NBRC 106164T was less than 30 %. In addition, some physiological and biochemical traits differed from those of S. aomiensis . Therefore, we propose that strain VN07A0015T be classified in the genus Streptomyces as a representative of Streptomyces catbensis sp. nov. (type strain VN07A0015T = VTCC-A-1889T = NBRC 107860T).

Azospirillum humicireducens sp. nov., a nitrogen-fixing bacterium isolated from a microbial fuel cell

2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2618-2624 ◽  
Author(s):  
Shungui Zhou ◽  
Luchao Han ◽  
Yueqiang Wang ◽  
Guiqin Yang ◽  
Li Zhuang ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Type Species ◽  
Sequence Similarity ◽  
Phylogenetic Analyses ◽  
Rrna Gene ◽  
Nitrogen Fixing ◽  
Content Type ◽  
Link Type ◽  
Type Strains

A Gram-negative, facultative anaerobic, motile, spiral, straight-to-slightly curved rod-shaped and nitrogen-fixing strain, designated SgZ-5T, was isolated from a microbial fuel cell (MFC) and was characterized by means of a polyphasic approach. Growth occurred with 0–1 % (w/v) NaCl (optimum 1 %) and at pH 5.5–8.5 (optimum pH 7.2) and at 25–37 °C (optimum 30 °C) in nutrient broth (NB). The strain had the ability to grow under anaerobic conditions via the oxidation of various organic compounds coupled to the reduction of anthraquione-2,6-disulfonate (AQDS). Chemotaxonomic characteristics (main ubiquinone Q-10, major fatty acid C18 : 1ω7c/C18 : 1ω6c and DNA G+C content 67.7 mol%) were similar to those of members of the genus Azospirillum . According to the results of phylogenetic analyses, strain SgZ-5T belonged to the genus Azospirillum within the family Rhodospirillaceae of the class Alphaproteobacteria , and was related most closely to the type strains of Azospirillum lipoferum , Azospirillum thiophilum and Azospirillum oryzae (98.0, 97.6 and 97.1 % 16S rRNA gene sequence similarity, respectively). DNA–DNA pairing studies showed that the unidentified organism displayed reassociation values of 36.7±3.7, 24.1±2.2 and 22.3±2.4 % to the type strains of A. lipoferum , A. thiophilum and A. oryzae , respectively. Similarities between nifH gene sequences of strain SgZ-5T and members of the genus Azospirillum ranged from 94.0 to 97.0 %. A combination of phenotypic, chemotaxonomic, phylogenetic and genotypic data clearly indicated that strain SgZ-5T represents a novel species, for which the name Azospirillum humicireducens sp. nov. is proposed. The type strain is SgZ-5T ( = CCTCC AB 2012021T = KACC 16605T).

scholarly journals Seonamhaeicola aphaedonensis gen. nov., sp. nov., a member of the family Flavobacteriaceae isolated from a tidal flat sediment

2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 1876-1881 ◽  
Author(s):  
Sooyeon Park ◽  
Sung-Min Won ◽  
Doo-Sang Park ◽  
Jung-Hoon Yoon
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Tidal Flat ◽  
Type Species ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
The Family ◽  
Type Strains

A Gram-stain-negative, non-motile, rod-shaped bacterial strain, AH-M5T, which was isolated from a tidal flat sediment at Aphae Island in South Korea, was characterized taxonomically. Strain AH-M5T grew optimally at 25 °C, at pH 7.0–8.0 and in presence of 2.0 % (w/v) NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain AH-M5T clustered coherently with the type strains of Mangrovimonas yunxiaonensis and Meridianimaribacter flavus , showing 93.4–94.3 % sequence similarity. The novel strain exhibited 16S rRNA gene sequence similarity values of less than 93.4 % to the type strains of other recognized species. Strain AH-M5T contained MK-6 as the predominant menaquinone and iso-C15 : 1 G, iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) as the major fatty acids. The polar lipid profile of strain AH-M5T containing phosphatidylethanolamine and one unidentified lipid as major components was differentiated from those of the type strains of Mangrovimonas yunxiaonensis and Meridianimaribacter flavus . The DNA G+C content of strain AH-M5T was 34.8 mol%. Differential phenotypic properties, together with the phylogenetic and chemotaxonomic data, demonstrated that strain AH-M5T is distinguished from Mangrovimonas yunxiaonensis and Meridianimaribacter flavus . On the basis of the data presented, strain AH-M5T is considered to represent a novel genus and species within the family Flavobacteriaceae , for which the name Seonamhaeicola aphaedonensis gen. nov., sp. nov. is proposed. The type strain of the type species is AH-M5T ( = KCTC 32578T = CECT 8487T).

Lysinibacillus manganicus sp. nov., isolated from manganese mining soil

2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3568-3573 ◽  
Author(s):  
Hongliang Liu ◽  
Yumei Song ◽  
Fang Chen ◽  
Shixue Zheng ◽  
Gejiao Wang
Keyword(s):  
Cell Wall ◽  
Dna Hybridization ◽  
Type Species ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Content Type ◽  
Mining Soil ◽  
Link Type ◽  
Type Strains

A Gram-stain-positive, aerobic, motile, rod-shaped bacterium, designated strain Mn1-7T, was isolated from manganese mining soil in Tianjin, China. The closest phylogenetic relatives were Lysinibacillus massiliensis CCUG 49529T (97.2 % 16S rRNA gene sequence similarity), L. xylanilyticus XDB9T (96.7 %), L. sinduriensis JCM 15800T (96.2 %), L. odysseyi NBRC 100172T (95.9 %) and L. boronitolerans NBRC 103108T (95.4 %) (the type species of the genus). DNA–DNA hybridization values for strain Mn1-7T with the type strains of L. massiliensis and L. sinduriensis were 24.9 and 27.7 %, respectively. The genomic DNA G+C content was 38.4 mol%. The major menaquinone was MK-7 and the major fatty acids were iso-C15 : 0, iso-C16 : 0 and iso-C14 : 0. The major polar lipids were diphosphatidylglycerol and phosphatidylglycerol. The cell-wall peptidoglycan was type A4α (l-Lys–d-Asp), and the predominant cell-wall sugar was xylose. DNA–DNA hybridization results and comparison of phenotypic and chemotaxonomic characters between strain Mn1-7T and the phylogenetically most closely related strains revealed that the isolate represents a novel species of the genus Lysinibacillus , for which the name Lysinibacillus manganicus sp. nov. is proposed. The type strain is Mn1-7T ( = DSM 26584T = CCTCC AB 2012916T).

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