scholarly journals Flavihumibacter cheonanensis sp. nov., isolated from sediment of a shallow stream

2014 ◽  
Vol 64 (Pt_9) ◽  
pp. 3235-3239 ◽  
Author(s):  
Wan-Hoe Kim ◽  
Siwon Lee ◽  
Tae-Young Ahn

A Gram-reaction-positive, rod-shaped, strictly aerobic and non-motile bacterial strain, designated WS16T, was isolated from the sediment of a shallow stream located in Cheonan, Korea. The strain grew optimally at 28 °C, at pH 7.0 and in the absence of NaCl. Phylogenetic trees based on 16S rRNA gene sequences suggested that the isolate belonged to the genus Flavihumibacter of the phylum Bacteroidetes . Comparative 16S rRNA gene sequence analysis showed that strain WS16T was related most closely to Flavihumibacter petaseus T41T (96.8 % similarity). The isolate contained MK-7 as the predominant menaquinone and iso-C15 : 0, iso-C15 : 1 and iso-C17 : 0 3-OH as the major fatty acids. The genomic DNA G+C content of the isolate was 45.9 mol%. The results of a polyphasic taxonomic approach indicated that strain WS16T represents a novel species of the genus Flavihumibacter , for which the name Flavihumibacter cheonanensis sp. nov. is proposed. The type strain is WS16T ( = KACC 17467T = JCM 19322T).

Author(s):  
Lei Song ◽  
Hongcan Liu ◽  
Ying Huang ◽  
Xin Dai ◽  
Yuguang Zhou

A Gram-stain-negative, rod-shaped bacterial strain, designated SW123T, was isolated from a deep-sea water sample collected from the Indian Ocean. Strain SW123T was strictly aerobic, catalase- and oxidase-positive. The predominant cellular fatty acids were iso-C15 : 0, iso-C17 : 0 and summed feature 9 (comprising C16 : 0-methyl or iso-C17 : 1 ω9c). Ubiquinone-8 was the sole respiratory quinone. The major polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylglycerol. The genomic DNA G+C content was 49.4 mol%. 16S rRNA gene sequence analysis showed that strain SW123T was closely related to Aliidiomarina shirensis AIST (96.7 % sequence similarity), Aliidiomarina iranensis GBPy7T (96.3%), Aliidiomarina haloalkalitolerans AK5T (96.0%) and Aliidiomarina celeris F3105T (95.9%). Phylogenetic trees based on 16S rRNA gene sequences showed that strain SW123T represented a novel member of the genus Aliidiomarina , forming a distinct cluster with A. celeris F3105T. On the basis of phylogenetic inference and phenotypic characteristics, we propose that strain SW123T represents a novel species of the genus Aliidiomarina , with the name Aliidiomarina indica sp. nov. The type strain is SW123T (=CGMCC1.16169T=KCTC 82234T).


2014 ◽  
Vol 64 (Pt_8) ◽  
pp. 2551-2557 ◽  
Author(s):  
Ja-Min Park ◽  
Sooyeon Park ◽  
Yong-Taek Jung ◽  
Hyangmi Kim ◽  
Jung-Sook Lee ◽  
...  

A Gram-stain-negative, strictly aerobic, non-flagellated and rod-shaped bacterial strain, designated GJR-7T, was isolated from coastal sand of the South Sea of South Korea. Strain GJR-7T grew optimally at 30 °C, at pH 7.0–7.5 and without NaCl. Phylogenetic trees based on 16S rRNA gene sequences revealed that strain GJR-7T clustered with the type strains of Sphingopyxis wooponensis , Sphingopyxis rigui and Sphingorhabdus planktonica , with which it exhibited 16S rRNA gene sequence similarity values of 96.0–96.3 %. Sequence similarities to the type strains of other recognized species were less than 95.5 %. Strain GJR-7T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c, 11-methyl C18 : 1ω7c and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) or C14 : 0 2-OH. The major polar lipids were sphingoglycolipid, phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and one unidentified glycolipid. The DNA G+C content of strain GJR-7T was 55.5 mol%. Differential phenotypic properties, together with phylogenetic distinctiveness, revealed that strain GJR-7T is separated from the type strains of Sphingopyxis wooponensis , Sphingopyxis rigui and Sphingorhabdus planktonica . On the basis of the data presented, strain GJR-7T is considered to represent a novel species of the genus Sphingorhabdus , for which the name Sphingorhabdus arenilitoris sp. nov. is proposed. The type strain is GJR-7T ( = KCTC 42051T = CECT 8531T). It is also proposed that Sphingopyxis wooponensis and Sphingopyxis rigui should be reclassified as members of the genus Sphingorhabdus .


2020 ◽  
Vol 70 (4) ◽  
pp. 2696-2702 ◽  
Author(s):  
Heeyoung Kang ◽  
Jinkyeong Kang ◽  
Inseong Cha ◽  
Haneul Kim ◽  
Yochan Joung ◽  
...  

Two strains of Gram-stain-positive, strictly aerobic, motile, spore-forming, rod-shaped, moderately halotolerant bacteria, designated as HMF5848T and HME7618, were isolated from salt/brine and subjected to a polyphasic taxonomic investigation. Growth of both yellow-coloured strains occurred in the presence of 1–9 % NaCl (w/v; optimum, 2–3 %), at 15–45 °C (optimum, 37 °C) and pH 6–9 (optimum, pH 7). The major fatty acids were iso-C15 : 0, iso-C16 : 0 and anteiso-C15 : 0. The cell-wall peptidoglycan was meso-diaminopimelic acid. The only respiratory quinone was menaquinone-7. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, four unidentified glycolipids, three unidentified phospholipids and two unidentified polar lipids. DNA G+C content was 37.4 mol%. Phylogenetic trees based on 16S rRNA gene sequences showed that strains HMF5848T and HME7618 clustered with Bacillus luteolus YIM 93174T. Strains HMF5848T showed the highest 16S rRNA gene sequence similarities to Bacillus humi LMG 22167T (96.1 %), Bacillus isabeliae CVS-8T (96.0 %) and Bacillus luteolus YIM 93174T (96.0 %). The values of in silico DNA–DNA hybridization and average nucleotide identity between strains HMF5848T and B. humi DSM 16318T were 25.8 and 69.7 %, respectively. On the basis of phylogenetic, physiological and chemotaxonomic properties, strain HMF5848T represents a novel species, Bacillus salinus sp. nov. The type strain is HMF5848T (=KCTC 43010T=CECT 9695T).


2015 ◽  
Vol 65 (Pt_6) ◽  
pp. 1819-1824 ◽  
Author(s):  
Sooyeon Park ◽  
Ji-Min Park ◽  
Chul-Hyung Kang ◽  
Song-Gun Kim ◽  
Jung-Hoon Yoon

A Gram-stain-negative, non-motile, aerobic and pleomorphic bacterium, designated BS-W13T, was isolated from a tidal flat on the South Sea, South Korea, and its taxonomic position was investigated using a polyphasic approach. Strain BS-W13T grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of 1.0–2.0 % (w/v) NaCl. Neighbour-joining and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain BS-W13T clustered with the type strain of Seohaeicola saemankumensis , showing the highest sequence similarity (95.96 %) to this strain. Strain BS-W13T exhibited 16S rRNA gene sequence similarity values of 95.95, 95.91, 95.72 and 95.68 % to the type strains of Sulfitobacter donghicola , Sulfitobacter porphyrae , Sulfitobacter mediterraneus and Roseobacter litoralis , respectively. Strain BS-W13T contained Q-10 as the predominant ubiquinone and C18 : 1ω7c as the major fatty acid. The polar lipid profile of strain BS-W13T, containing phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine, one unidentified aminolipid and one unidentified lipid as major components, was distinguishable from those of some phylogenetically related taxa. The DNA G+C content of strain BS-W13T was 58.1 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain BS-W13T constitutes a novel genus and species within family Rhodobacteraceae of the class Alphaproteobacteria , for which the name Pseudoseohaeicola caenipelagi gen. nov., sp. nov. is proposed. The type strain is BS-W13T ( = KCTC 42349T = CECT 8724T).


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3862-3866 ◽  
Author(s):  
Shi Peng ◽  
Dong Dan Hong ◽  
Yang Bing Xin ◽  
Li Ming Jun ◽  
Wei Ge Hong

A Gram-staining-negative, non-motile, catalase- and oxidase-positive strain, designated CCNWSP36-1T, was isolated from the nodule surface of soybean [Glycine max (L.) Merrill] cultivar Zhonghuang 13. The 16S rRNA gene sequence analysis clearly showed that the isolate represented a member of the genus Sphingobacterium . On the basis of pairwise comparisons of 16S rRNA gene sequences, strain CCNWSP36-1T showed 96.8 % similarity to Sphingobacterium nematocida CCTCC AB 2010390T and less than 95.2 % similarity to other members of the genus Sphingobacterium . Growth of strain CCNWSP36-1T occurred at 10–40 °C and at pH 5.0–9.0. The NaCl range (w/v) for growth was 0–4 %. The predominant isoprenoid quinone was MK-7. The polar lipids were phosphatidylethanolamine and several unidentified polar lipids. Sphingolipid was present. The major fatty acids were iso-C15 : 0 and summed feature 3 (comprising C16 : 1ω6c and/or C16 : 1ω7c). The G+C content of the genomic DNA was 41.1 mol%. As the physiological and biochemical characteristics of strain CCNWSP36-1T and the type strains of its closest phylogenetic neighbours showed clear differences, a novel species, Sphingobacterium yanglingense, is proposed. The type strain is CCNWSP36-1T ( = ACCC 19328T = JCM 30166T).


Author(s):  
Hye Su Jung ◽  
Byung Hee Chun ◽  
Hyung Min Kim ◽  
Che Ok Jeon

Two Gram-stain-negative, yellow-pigmented and strictly aerobic bacteria, designated strains SE-s27T and SE-s28T, were isolated from forest soil. Both strains were non-motile rods that were catalase-positive and oxidase-negative and grew optimally at 25–30 °C, pH 8.0 and with 0 % (w/v) NaCl. Strain SE-s28T produced flexirubin-type pigments, but strain SE-s27T did not produce them. Both strains contained menaquinone-6 as the sole respiratory quinone and phosphatidylethanolamine as a major polar lipid. As the major cellular fatty acids (>10 %), SE-s27T contained iso-C15 : 1 and iso-C15 : 1G, whereas SE-s28T contained iso-C15 : 0 and summed feature 3 comprising C16 : 1ω7c and/or C16 : 1ω6c and/or iso-C15 : 0 2-OH. The DNA G+C contents of strains SE-s27T and SE-s28T were 33.1 and 44.3 mol%, respectively. The results of phylogenetic analysis based on 16S rRNA gene sequences revealed that SE-s27T and SE-s28T formed respective distinct phylogenetic lineages within the genus Flavobacterium . Strains SE-s27T and SE-s28T were most closely related to Flavobacterium macrobrachii an-8T and Flavobacterium piscinae ICH-30T with 98.0 and 94.5 % 16S rRNA gene sequence similarities, respectively. In conclusion, strains SE-s27T and SE-s28T represent novel species of the genus Flavobacterium , for which the names Flavobacterium solisilvae sp. nov. and Flavobacterium silvaticum sp. nov. are proposed. The type strains of F. solisilvae and F. silvaticum are SE-s27T (=KACC 18802T=JCM 31544T) and SE-s28T (=KACC 18803T=JCM 31545T), respectively.


2013 ◽  
Vol 63 (Pt_3) ◽  
pp. 886-892 ◽  
Author(s):  
Kun Dong ◽  
Fang Chen ◽  
Yan Du ◽  
Gejiao Wang

A Gram-negative, strictly aerobic, yellow-pigmented rod, designated DK69T, was isolated from soil collected from the waste liquid treatment facility of Bafeng Pharmaceutical Company in the city of Enshi, Hubei Province, China. Phylogenetic analysis based on 16S rRNA gene sequences placed strain DK69T in the genus Flavobacterium of the family Flavobacteriaceae . The highest 16S rRNA gene sequence similarities were found with Flavobacterium cauense R2A-7T (96.9 %), Flavobacterium saliperosum AS 1.3801T (96.3 %) and Flavobacterium suncheonense GH29-5T (95.7 %). The major fatty acids (≥5 %) were iso-C15 : 0, iso-C17 : 1ω9c, C15 : 0, iso-C17 : 0 3-OH and iso-C15 : 0 3-OH. The major polar lipids were phosphatidylethanolamine, one unidentified aminolipid and one unidentified lipid. The major respiratory quinone was menaquinone-6. The genomic DNA G+C content was 34.4 mol%. Strain DK69T represents a novel species of the genus Flavobacterium , for which the name Flavobacterium enshiense sp. nov. is proposed. The type strain is DK69T ( = CCTCC AB 2011144T  = KCTC 23775T). Emended descriptions of the genus Flavobacterium and Flavobacterium cauense , Flavobacterium saliperosum and Flavobacterium suncheonense are also proposed.


2013 ◽  
Vol 63 (Pt_3) ◽  
pp. 1017-1023 ◽  
Author(s):  
Hong Chen ◽  
Mareike Jogler ◽  
Brian J. Tindall ◽  
Hans-Peter Klenk ◽  
Manfred Rohde ◽  
...  

A novel type of freshwater bacterium was isolated from the prealpine mesotrophic Starnberger See (Bavaria, southern Germany). Cells of strain 382T were Gram-negative and rod-shaped, motile and creamy-white. The isolate was strictly aerobic, catalase- and oxidase-positive, and grew at pH values of 6–9 (optimum, pH 7) and temperatures of 10–37 °C (optimum, 28 °C). The genomic G+C content of strain 382T was 64.1 mol%. Based on 16S rRNA gene sequence analyses, strain 382T belongs to the family Sphingomonadaceae and clusters within the genus Sphingomonas . Sphingomonas histidinilytica UM 2T and Sphingomonas wittichii DSM 6014T were the closest relatives, as indicated by the highest 16S rRNA gene sequence similarities (97.1 % and 96.8 %, respectively). Sphingomonas paucimobilis DSM 1098T (the type species of the genus Sphingomonas ) exhibited 95.3 % sequence similarity. This affiliation of strain 382T to the genus Sphingomonas is confirmed by the presence of Q-10 as the major respiratory quinone, two sphingoglycolipids, C14 : 0 2-OH as the major 2-hydroxy fatty acid and sym-homospermidine as the major polyamine. The main cellular fatty acids of strain 382T were C18 : 1ω7c (39 %), C16 : 1ω7c (21 %), C16 : 0 (10 %) and C14 : 0 2-OH (10 %). Based on the phylogenetic distance from other species of the genus Sphingomonas and its unusually high C16 : 1ω7c content, strain 382T represents a novel species of the genus Sphingomonas , for which the name Sphingomonas starnbergensis is proposed. The type strain is 382T ( = DSM 25077T  = LMG 26763T).


2013 ◽  
Vol 63 (Pt_5) ◽  
pp. 1805-1809 ◽  
Author(s):  
Hidetoshi Matsuyama ◽  
Hideki Minami ◽  
Hirokazu Kasahara ◽  
Yoshihisa Kato ◽  
Masafumi Murayama ◽  
...  

A novel exopolysaccharide-producing bacterium, designated strain k53T, was isolated from sediment from the Arabia Sea, Indian Ocean. The strain was Gram-negative, motile, strictly aerobic, oxidase-positive and catalase-positive, and required Na+ for growth. Its major isoprenoid quinone was ubiquinone-8 (Q-8), and its cellular fatty acid profile mainly consisted of C16 : 1ω7c, C16 : 0 and C18 : 1ω7c. The DNA G+C content was 43 mol%. 16S rRNA gene sequence analysis suggested that strain k53T is a member of the genus Pseudoalteromonas . Strain k53T exhibited close phylogenetic affinity to Pseudoalteromonas lipolytica LMEB 39T (98.0% 16S rRNA gene sequence similarity) and Pseudoalteromonas donghaensis HJ51T (97.3 %).The DNA–DNA reassociation values between strain k53T and P. lipolytica JCM 15903T and P. donghaensis LMG 24469T were 17 % and 12 %, respectively. Owing to the significant differences in phenotypic and chemotaxonomic characteristics, and phylogenetic analysis based on the 16S rRNA gene sequence and DNA–DNA relatedness data, the isolate merits classification as a representative of a novel species, for which the name Pseudoalteromonas arabiensis is proposed. The type strain of this species is k53T ( = JCM 17292T = NCIMB 14688T).


2013 ◽  
Vol 63 (Pt_8) ◽  
pp. 2895-2900 ◽  
Author(s):  
Renukaradhya K. Math ◽  
Hyun Mi Jin ◽  
Sang Hyeon Jeong ◽  
Che Ok Jeon

A novel Gram-staining-negative, strictly aerobic bacterium, designated BS14T, was isolated from a marine tidal flat of the South Sea in Korea. Colonies were opaque, white, smooth and circular on marine agar. Cells were moderately halophilic, non-motile rods showing catalase- and oxidase-positive reactions. Growth of strain BS14T was observed at 5–40 °C (optimum: 30 °C), pH 6.5–9.5 (optimum: 7.0–7.5) and 0–10 % (w/v) NaCl (optimum: 1–1.5 %). The G+C content of the genomic DNA was 61.6 mol%. Strain BS14T contained ubiquinone-10 (Q-10) as the sole respiratory quinone and summed feature 8 (comprising C18 : 1ω7c and/or C18 : 1ω6c), C18 : 0 3-OH, C10 : 0 3-OH and C18 : 0 as the major fatty acids. The polar lipid pattern comprised phosphatidylethanolamine, diphosphatidylglycerol, an unidentified aminolipid, an unidentified phospholipid and an unidentified polar lipid. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain BS14T formed a tight phylogenetic lineage with Defluviimonas denitrificans D9-3T with a bootstrap value of 100 %. The 16S rRNA gene sequence similarity between strain BS14T and D. denitrificans D9-3T was 97.4 % and their DNA–DNA relatedness was 19.1±3.6 %. Based on the phenotypic and genotypic studies, strain BS14T represents a novel species of the genus Defluviimonas , for which the name Defluviimonas aestuarii sp. nov. is proposed. The type strain is BS14T ( = KACC 16442T = JCM 18630T). An emended description of the genus Defluviimonas Foesel et al. 2011 is also proposed.


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