Myceligenerans halotolerans sp. nov., an actinomycete isolated from a salt lake, and emended description of the genus Myceligenerans

2011 ◽  
Vol 61 (4) ◽  
pp. 974-978 ◽  
Author(s):  
Yun Wang ◽  
Shu-Kun Tang ◽  
Zhi Li ◽  
Kai Lou ◽  
Pei-Hong Mao ◽  
...  

A halotolerant actinomycete strain, designated XJEEM 11063T, was isolated from a salt lake in Xinjiang province, north-western China. Strain XJEEM 11063T grew at pH 6.0–8.0 (optimal growth at pH 7.0), between 10 and 40 °C (optimal growth at 28–37 °C) and at salinities of 0–10 % (w/v) NaCl (optimal growth at 0–5 %, w/v). The peptidoglycan type was A4α, and the whole-cell hydrolysates contained glucose, mannose and arabinose. The major fatty acids were anteiso-C15 : 0, iso-C15 : 0 and anteiso-C17 : 0. MK-9(H4) was the predominant menaquinone and the polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol mannosides, two unknown phospholipids and three unknown glycolipids. The genomic DNA G+C content was 71.8 mol%. The chemotaxonomic properties supported the affiliation of strain XJEEM 11063T to the genus Myceligenerans. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the organism was most closely related to Myceligenerans xiligouense XLG9A10.2T (98.3 %) and Myceligenerans crystallogenes DSM 17134T (97.0 %). However, it had relatively low values for DNA–DNA relatedness with the above strains (56.0 % and 47.5 %, respectively). Thus, on the basis of the results from this study, a novel species, Myceligenerans halotolerans sp. nov., is proposed. The type strain is XJEEM 11063T ( = DSM 21949T = CCTCC AA 208063T).

2015 ◽  
Vol 65 (Pt_10) ◽  
pp. 3271-3275 ◽  
Author(s):  
Feng-Qing Wang ◽  
Yan-Xia Zhou ◽  
Xue-Zheng Lin ◽  
Guan-Jun Chen ◽  
Zong-Jun Du

A yellow-pigmented, Gram-stain-negative and facultatively anaerobic bacterium, designated FB218T, was isolated from a sediment sample collected from a sea cucumber culture pond in Rongcheng, China (36° 54′ 36″ N 122° 14′ 34″ E). Cells of strain FB218T were slender, gliding, catalase-positive and oxidase-negative. Optimal growth occurred at 30 °C, pH 6.5–7.0 and in medium containing 2–3 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain FB218T belonged to the genus Carboxylicivirga, family Marinilabiliaceae. The predominant fatty acids were iso-C15 : 0 and anteiso-C15 : 0. MK-7 was the main respiratory quinone. The major polar lipids of strain FB218T were two unidentified lipids and a phospholipid. The genomic DNA G+C content was 40.0 mol%. Based on the distinct phylogenetic position and the combination of physiological and phenotypic characteristics, strain FB218T represents a novel species of the genus Carboxylicivirga, for which the name Carboxylicivirga linearis sp. nov. is proposed. The type strain is FB218T ( = KCTC 42254T = MCCC 1H00106T). An emended description of the genus Carboxylicivirga is also provided.


2007 ◽  
Vol 57 (7) ◽  
pp. 1539-1542 ◽  
Author(s):  
Hang-Yeon Weon ◽  
Byung-Yong Kim ◽  
Seung-Beom Hong ◽  
Jae-Ho Joa ◽  
Sang-Sik Nam ◽  
...  

A light-pink-coloured bacterium, designated strain 5416T-32T, was isolated from an air sample in Korea. Cells of the strain were strictly aerobic, Gram-negative, motile (single polar or subpolar flagellum) and rod-shaped. Optimal growth occurred at 25–30 °C and at pH 6.0–7.0. The major quinones were Q-10 and Q-8. The major fatty acids were C18 : 1 ω7c (53.8 %) and C16 : 0 (15.9 %). The G+C content of the genomic DNA was 65.0 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain 5416T-32T was most closely related to Skermanella parooensis, with a similarity of 96.2 %, but relatively low sequence similarities (<92 %) were found with respect to other species with validly published names held in GenBank. Phenotypic and genotypic analyses indicated that strain 5416T-32T could not be assigned to any recognized species. Therefore strain 5416T-32T represents a novel species of the genus Skermanella, for which the name Skermanella aerolata sp. nov. is proposed. The type strain is 5416T-32T (=KACC 11604T=DSM 18479T).


2007 ◽  
Vol 57 (7) ◽  
pp. 1499-1503 ◽  
Author(s):  
Ida Romano ◽  
Annarita Poli ◽  
Ilaria Finore ◽  
F. Javier Huertas ◽  
Agata Gambacorta ◽  
...  

An extremely halophilic archaeon belonging to the order Halobacteriales was isolated from Fuente de Piedra salt lake, Spain. This strain, designated FP1T, was a pleomorphic coccoid, neutrophilic and required at least 15 % (w/v) NaCl for growth. Strain FP1T grew at 37–60 °C, with optimal growth at 50 °C. Mg2+ was not required, but growth was observed with up to 10 % (w/v) MgSO4. Polar lipid analysis revealed the presence of mannose-6-sulfate(1-2)-glucose glycerol diether as a major glycolipid. Both C20C20 and C20C25 core lipids were present. The genomic DNA G+C content was 62.0 mol%. Phylogenetic analysis based on comparison of 16S rRNA gene sequences demonstrated that the isolate was most closely related to species of the genus Haloterrigena. DNA–DNA reassociation values between strain FP1T and the most closely related species of the genus Haloterrigena (Haloterrigena thermotolerans, Haloterrigena saccharevitans and Haloterrigena limicola) were lower than 29 %. It is therefore considered that strain FP1T represents a novel species of the genus Haloterrigena, for which the name Haloterrigena hispanica sp. nov. is proposed. The type strain is FP1T (=DSM 18328T=ATCC BAA-1310T).


2010 ◽  
Vol 60 (4) ◽  
pp. 958-962 ◽  
Author(s):  
Wei-Min Chen ◽  
Wen-Fei Zhu ◽  
Cyril Bontemps ◽  
J. Peter W. Young ◽  
Ge Hong Wei

Eleven strains that formed symbiotic root nodules on Alhagi sparsifolia, designated previously as genospecies II, were identified as a new lineage of Mesorhizobium (Alphaproteobacteria) that could be differentiated from all previously recognized species of the genus Mesorhizobium by using 16S rRNA gene sequences (<97.8 % similarity), DNA–DNA hybridization (<45 %), dnaJ, dnaK, recA, glnA, nifH, nodA and nodC gene sequences, fatty acid profiles (C18 : 1 ω7c, 35 %;11-methyl C18 : 1 ω7c, 30 %) and numerical taxonomy. These strains are therefore considered to represent a novel species, for which the name Mesorhizobium alhagi sp. nov. is proposed, with isolate CCNWXJ12-2T (=ACCC 15461T=HAMBI 3019T) as the type strain.


2010 ◽  
Vol 60 (3) ◽  
pp. 554-559 ◽  
Author(s):  
Arinthip Thamchaipenet ◽  
Chantra Indananda ◽  
Chakrit Bunyoo ◽  
Kannika Duangmal ◽  
Atsuko Matsumoto ◽  
...  

A novel endophytic actinomycete, strain GMKU 931T, was isolated from the root of a wattle tree, Acacia auriculiformis A. Cunn. ex Benth., collected at Kasetsart University, Bangkok, Thailand. Strain GMKU 931T produced short spiral chains of smooth-surfaced spores on the aerial mycelium. Lysine and meso-diaminopimelic acid were present in the cell-wall peptidoglycan. Whole-cell hydrolysates contained galactose, madurose and mannose. The predominant menaquinones were MK-9(H6) and MK-9(H8). The major fatty acids were iso-C16 : 0 and iso-C16 : 1. The major phospholipids were phosphatidylinositol and phosphatidylglycerol. A phylogenetic analysis based on 16S rRNA gene sequences suggested that strain GMKU 931T forms a distinct phyletic line within the recently proposed genus Actinoallomurus. The significant differences in phenotypic and genotypic data indicate that strain GMKU 931T represents a novel species of the genus Actinoallomurus, for which the name Actinoallomurus acaciae sp. nov. is proposed. The type strain is GMKU 931T (=BCC 28622T =NBRC 104354T =NRRL B-24610T).


2011 ◽  
Vol 61 (5) ◽  
pp. 1201-1205 ◽  
Author(s):  
Jun Dai ◽  
Fan Jiang ◽  
Yang Wang ◽  
Bo Yu ◽  
Huan Qi ◽  
...  

Strain 15-4T, a Gram-stain-negative, rod-shaped, non-motile bacterial strain that produced flexirubin-type pigments, was isolated from Tibet Province, China, and characterized by using a polyphasic taxonomic approach. Phylogenetic analysis based on 16S rRNA gene sequences indicated that the isolate belonged to the family Chitinophagaceae, phylum ‘Bacteroidetes’, and was related to members of the genus Niabella, with sequence similarities ranging from 94.1 to 96.4 %. Strain 15-4T contained MK-7 as the predominant menaquinone and its DNA G+C content was 46.9 mol%. The major fatty acids of strain 15-4T were iso-C15 : 0 (41.3 %), iso-C15 : 1 G (14.9 %), iso-C17 : 0 3-OH (13.2 %) and summed feature 3 (comprising C16 : 1ω7c and/or iso-C15 : 0 2-OH, 16.0 %). These chemotaxonomic data supported the affiliation of strain 15-4T to the genus Niabella. However, a number of physiological and biochemical features enabled the isolate to be differentiated phenotypically from recognized species of the genus Niabella. On the basis of the evidence presented, it is proposed that strain 15-4T represents a novel species, Niabella tibetensis sp. nov.; the type strain is 15-4T ( = CCTCC AB 209167T = NRRL B-59394T). On the basis of these data, an emended description of the genus Niabella is also proposed.


2013 ◽  
Vol 63 (Pt_11) ◽  
pp. 4033-4038 ◽  
Author(s):  
Chitti Thawai ◽  
Chanwit Suriyachadkun

A novel actinomycete strain, designed MW4-36T, was isolated from tropical forest soil in Nakhon Sawan Province, Thailand. Morphological and chemotaxonomic characteristics of this strain clearly demonstrated that it belongs to the genus Dactylosporangium . The strain formed finger-shaped sporangia on short sporangiophores that emerged directly from substrate hyphae. The cell-wall peptidoglycan contained glutamic acid, glycine, alanine and meso-diaminopimelic acid including 3-hydroxy-meso-diaminopimelic acid; arabinose, glucose, rhamnose, ribose and xylose were found as whole-cell sugars. The diagnostic phospholipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol; no phosphatidylcholine was found. The predominant menaquinones were MK-9(H8) and MK-9(H6). Mycolic acids were not detected. The predominant cellular fatty acids were iso-C15 : 0, iso-C16 : 0, anteiso-C15 : 0 and anteiso-C17 : 0. The G+C content of the genomic DNA was 72.9 mol%. Phylogenetic analysis based on 16S rRNA gene sequences also indicated that the strain should be classified in the genus Dactylosporangium and showed that the closest relative was Dactylosporangium maewongense JCM 15933T (99.4 % similarity). These taxonomic data revealed that strain MW4-36T could be readily distinguished from its phylogenetically closest relative. On the basis of these phenotypic and genotypic data, strain MW4-36T is considered to represent a novel species, for which the name Dactylosporangium siamense sp. nov. is proposed. The type strain is MW4-36T ( = BCC 34901T = NBRC 106093T).


2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 4038-4042 ◽  
Author(s):  
Keun Sik Baik ◽  
Mi Sun Kim ◽  
Ji Hee Lee ◽  
Sang Suk Lee ◽  
Wan-Taek Im ◽  
...  

A non-motile and rod-shaped bacterium, designated strain 02SUJ3T, was isolated from freshwater collected from the Juam Reservoir (Republic of Korea). Cells were Gram-stain-negative, aerobic, oxidase-negative and catalase-positive. The major fatty acids were iso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH. The strain contained MK-7 as the major isoprenoid quinone. The main polar lipid was phosphatidylethanolamine. The DNA G+C content was 46.4 mol%. A phylogenetic tree based on 16S rRNA gene sequences showed that strain 02SUJ3T forms an independent lineage within the genus Flavisolibacter with low sequence similarity to Flavisolibacter ginsengiterrae Gsoil 492T and Flavisolibacter ginsengisoli Gsoil 643T (95.7 %). Phenotypic characteristics distinguished strain 02SUJ3T from members of the genus Flavisolibacter . On the basis of the evidence presented in this study, strain 02SUJ3T is considered to represent a novel species, for which the name Flavisolibacter rigui sp. nov. is proposed. The type strain is 02SUJ3T ( = JCM 17515T = KCTC 23328T). An emended description of the genus Flavisolibacter is also provided.


2010 ◽  
Vol 60 (3) ◽  
pp. 580-584 ◽  
Author(s):  
Muhammad Yasir ◽  
Zubair Aslam ◽  
Geun Cheol Song ◽  
Che Ok Jeon ◽  
Young Ryun Chung

A Gram-stain-negative, rod-shaped bacterium, designated strain YC7378T was isolated from vermicompost (VC) collected at Masan, Korea, and its taxonomic position was investigated by using a polyphasic approach. Strain YC7378T grew optimally at 30 °C and at pH 6.5–8.5. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain YC7378T belongs to the genus Sphingosinicella in the family Sphingomonadaceae. The most closely related strains are Sphingosinicella soli KSL-125T (95.7 %), Sphingosinicella xenopeptidilytica 3-2W4T (95.6 %) and Sphingosinicella microcystinivorans Y2T (95.5 %). Strain YC7378T contained ubiquinone Q-10 as the major respiratory quinone system and sym-homospermidine as the major polyamine. The major fatty acids of strain YC7378T were C18 : 1 ω7c, C16 : 1 ω7c and/or iso-C15 : 0 2-OH, C14 : 0 2-OH and C16 : 0. The major polar lipids were sphingoglycolipid, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The total DNA G+C content was 59.4 mol%. The phenotypic, phylogenetic and chemotaxonomic data showed that strain YC7378T represents a novel species of the genus Sphingosinicella, for which the name Sphingosinicella vermicomposti sp. nov. is proposed. The type strain is YC7378T (=KCTC 22446T =DSM 21593T).


2011 ◽  
Vol 61 (7) ◽  
pp. 1662-1666 ◽  
Author(s):  
Anna Rusznyák ◽  
Erika M. Tóth ◽  
Peter Schumann ◽  
Cathrin Spröer ◽  
Judit Makk ◽  
...  

An alkalitolerant and moderately halophilic strain, designated KB23T, characterized by optimal growth at pH 8.0–9.0 and in the presence of 5–7 % (w/v) NaCl, was isolated from a reed (Phragmites australis) periphyton sample originating from an extremely shallow, alkaline soda pond located in Hungary. Cells of strain KB23T were Gram-stain-positive, motile straight rods. Strain KB23T was facultatively anaerobic, catalase-positive, oxidase-negative and contained peptidoglycan type A4β (l-Orn–d-Asp). MK-9(H4) was the predominant isoprenoid quinone and anteiso-C15 : 0, C16 : 0 and anteiso-C15 : 1 were the major cellular fatty acids. The DNA G+C content of strain KB23T was 74.8 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that this strain belongs to the genus Cellulomonas and that it is related most closely to Cellulomonas flavigena DSM 20109T (97.35 % similarity), Cellulomonas terrae DB5T (96.81 %), Cellulomonas iranensis OT (96.75), Cellulomonas chitinilytica X.bu-bT (96.60 %), Cellulomonas persica IT (96.53 %), Cellulomonas composti TR7-06T (96.45 %), Cellulomonas biazotea DSM 20112T (96.34 %) and Cellulomonas fimi DSM 20113T (96.20 %). According to these results, together with DNA–DNA hybridization and physiological data, strain KB23T is considered to represent a novel species of the genus Cellulomonas, for which the name Cellulomonas phragmiteti sp. nov. is proposed. The type strain is KB23T ( = DSM 22512T  = NCAIM B002303T).


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