scholarly journals Flavobacterium oryzae sp. nov., isolated from a flooded rice field, and emended descriptions of Flavobacterium flevense, Flavobacterium yonginense and Flavobacterium myungsuense

2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3701-3708 ◽  
Author(s):  
Wen-Ming Chen ◽  
Jhen-Ci Chen ◽  
Shih-Yi Sheu

A bacterial strain, designated Jyi-05T, was isolated from a flooded rice field and characterized using a polyphasic taxonomic approach. Cells of strain Jyi-05T were Gram-stain-negative, strictly aerobic, bright-yellow-pigmented rods that were motile by gliding. Growth occurred at 10–30 °C (optimum 30 °C), at pH 6.5–7.5 (optimum pH 7.0) and with 0–2 % (w/v) NaCl (optimum 1 %, w/v, NaCl). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain Jyi-05T belonged to the genus Flavobacterium and was most closely related to Flavobacterium flevense DSM 1076T with sequence similarity of 97.6 %. Strain Jyi-05T contained iso-C15 : 0 (16.6 %), anteiso-C15 : 0 (10.8 %), summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c; 10.3 %), iso-C17 : 0 3-OH (9.2 %), C16 : 0 (7.3 %) and iso-C15 : 0 3-OH (7.2 %) as the predominant fatty acids. The major isoprenoid quinone was MK-6. The polar lipid profile consisted of phosphatidylethanolamine and several uncharacterized aminophospholipids and phospholipids. The major polyamine was homospermidine. The genomic DNA G+C content of strain Jyi-05T was 34.2 mol%. The DNA–DNA relatedness of strain Jyi-05T with respect to recognized species of the genus Flavobacterium was less than 70 %. On the basis of the phylogenetic inference and phenotypic data, strain Jyi-05T should be classified as a novel species, for which the name Flavobacterium oryzae sp. nov. is proposed. The type strain is Jyi-05T ( = BCRC 80522T = LMG 27292T = KCTC 32240T). Emended descriptions of Flavobacterium flevense , Flavobacterium yonginense and Flavobacterium myungsuense are also presented.

2020 ◽  
Vol 70 (11) ◽  
pp. 5943-5949 ◽  
Author(s):  
Yun-zhen Yang ◽  
Ji-feng Chen ◽  
Wan-ru Huang ◽  
Ran-ran Zhang ◽  
Shuangjiang Liu ◽  
...  

A novel Gram-stain-negative, strictly aerobic, rod-shaped, brick red-pigmented bacterium, designated R-22-1 c-1T, was isolated from water from Baiyang Lake, Hebei Province, PR China. The strain was able to grow at 20–30 °C (optimum, 30 °C) and pH 6–7 (optimum, pH 6) in Reasoner’s 2A medium. 16S rRNA gene sequence and phylogenetic analyses of R-22-1 c-1T revealed closest relationships to Rufibacter immobilis MCC P1T (97.8 %), Rufibacter sediminis H-1T (97.9 %) and Rufibacter glacialis MDT1-10-3T (97.0 %), with other species of the genus Rufibacter showing less than 97.0 % sequence similarity. The predominant polar lipids were phosphatidylethanolamine, two unidentified aminophospholipids and three unidentified lipids. The major cellular fatty acids were iso-C15 : 0, C15 : 1  ω6c, C17 : 1  ω6c, anteiso-C15 : 0, summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1  ω7c and/or C16 : 1  ω6c) and summed feature 4 (iso-C17 : 1I and/or anteiso-C17 : 1B). The respiratory quinone was MK-7. The draft genome of R-22-1 c-1T was 5.6 Mbp in size, with a G+C content of 50.2 mol%. The average nucleotide identity and digital DNA–DNA hybridization relatedness values between strain R-22-1 c-1T and related type strains were R. immobilis MCC P1T (77.2 and 21.8 %), R. sediminis H-1T (81.6 and 21.4 %) and R. tibetensis 1351T (78.5 and 22.9 %). Based on these phylogenetic, chemotaxonomic and genotypic results, strain R-22-1 c-1T represents a novel species in the genus Rufibacter , for which the name Rufibacter latericius sp. nov. is proposed. The type strain is R-22-1 c-1T (=CGMCC 1.13570T=KCTC 62781T).


2020 ◽  
Vol 70 (3) ◽  
pp. 2132-2136 ◽  
Author(s):  
Hyo-Jin Lee ◽  
Kyung-Sook Whang

A Gram-stain-negative bacterium, designated strain PF-30T, was isolated from floodwater of a paddy field in South Korea. Strain PF-30T was found to be a strictly aerobic, motile and pink-pigmented rods which can grow at 25–40 °C (optimum, 28 °C), at pH 5.0–9.0 (optimum pH 7.0) and at salinities of 0.5–3.0 % NaCl (optimum 0.5 % NaCl). Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain PF-30T belongs to the genus Elioraea , showing highest sequence similarity to Elioraea tepidiphila TU-7T (97.1%) and less than 91.3 % similarity with other members of the family Acetobacteraceae . The average nucleotide identity (ANI) and DNA–DNA relatedness between the strain PF-30T and E. tepidiphila TU-7T yielded an ANI value of 75.1 % and DNA–DNA relatedness of 11.7±0.7 %, respectively. The major fatty acids were identified as C18 : 0 and C18 : 1 ω7c. The predominant respiratory quinone was identified as Q-10. The DNA G+C content was determined to be 69.9 mol%. The strain PF-30T was observed to produce plant-growth-promoting materials such as indole-3-acetic acid (IAA), siderophore and phytase. On the basis of the results from phylogenetic, chemotaxonomic and phenotypic data, we concluded that strain PF-30T represents a novel species of the genus Elioraea , for which the name Elioraea rosea sp. nov. is proposed. The type strain is PF-30T (=KACC 19985T=NBRC 113984T).


2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 2239-2247 ◽  
Author(s):  
Shih-Yi Sheu ◽  
Yang-Shun Lin ◽  
Wen-Ming Chen

A bacterial strain, designated CMJ-5T, was isolated from a freshwater shrimp culture pond in Taiwan and characterized using a polyphasic taxonomic approach. Cells of strain CMJ-5T were Gram-stain-negative, strictly aerobic, non-motile, yellow-pigmented rods surrounded by a thick capsule. Growth occurred at 20–35 °C (optimum, 30 °C), at pH 6.5–8.0 (optimum, pH 7.0) and with 0–0.5 % NaCl (optimum, 0 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain CMJ-5T belonged to the genus Flavobacterium and was related most closely to Flavobacterium haoranii LQY-7T with sequence similarity of 94.4 %. Strain CMJ-5T contained iso-C15 : 0 (37.5 %), iso-C17 : 0 3-OH (13.4 %), iso-C15 : 0 3-OH (13.1 %) and iso-C15 : 1 G (11.2 %) as the predominant fatty acids. The major isoprenoid quinone was MK-6. The polar lipid profile consisted of phosphatidylethanolamine and several uncharacterized aminophospholipids and phospholipids. The major polyamine was homospermidine. The G+C content of the genomic DNA was 42.4 mol%. On the basis of phylogenetic inference and phenotypic data, strain CMJ-5T should be classified as a representative of a novel species, for which the name Flavobacterium squillarum sp. nov. is proposed. The type strain is CMJ-5T ( = BCRC 80405T = LMG 26890T = KCTC 23915T). Emended descriptions of Flavobacterium haoranii , Flavobacterium cauense , Flavobacterium terrae and Flavobacterium aquatile are also proposed.


2012 ◽  
Vol 62 (Pt_12) ◽  
pp. 2844-2850 ◽  
Author(s):  
Sathiyaraj Srinivasan ◽  
Jae-Jin Lee ◽  
Sangyong Lim ◽  
Minho Joe ◽  
Myung Kyum Kim

A Gram-staining-positive, strictly aerobic, spherical, non-motile, red-pigmented bacterium, designated strain MK03T, was isolated from a soil sample collected in South Korea. The taxonomic position of the novel strain was investigated using a polyphasic approach. In phylogenetic analyses based on 16S rRNA gene sequences, strain MK03T was placed in a clade formed by members of the genus Deinococcus in the family Deinococcaceae and appeared to be most closely related to Deinococcus aerolatus 5516T-9T (97.4 % sequence similarity), Deinococcus marmoris AA-63T (97.2 %), Deinococcus radiopugnans ATCC 19172T (97.2 %) and Deinococcus saxicola AA-1444T (96.9 %). The genomic DNA G+C content of the novel strain was 64.5 mol%. The chemotaxonomic characteristics of strain MK03T were typical of members of the genus Deinococcus : MK-8 was identified as the predominant respiratory quinine, the major fatty acids were C16 : 1ω7c, C15 : 1ω6c, C16 : 0 and C15 : 0, ornithine was found to be the diamino acid in the cell-wall peptidoglycan and the novel strain showed resistance to gamma radiation, with a D10 value (i.e. the dose required to reduce the bacterial population by 10-fold) in excess of 9 kGy. In hybridization experiments, only low DNA–DNA relatedness values (11.6–34.5 %) were recorded between the novel strain and its closest relatives in the genus Deinococcus . Based on the phylogenetic, chemotaxonomic, phenotypic and DNA–DNA relatedness data, strain MK03T represents a novel species of the genus Deinococcus , for which the name Deinococcus humi sp. nov. is proposed. The type strain is MK03T ( = KCTC 13619T  = JCM 17915T).


2013 ◽  
Vol 63 (Pt_4) ◽  
pp. 1421-1426 ◽  
Author(s):  
Byoung-Jun Yoon ◽  
Dong-Heon Lee ◽  
Duck-Chul Oh

A Gram-staining-negative, yellow-pigmented, non-motile, strictly aerobic, rod-shaped bacterium, designated strain CNU001T, was isolated from seawater collected on the coast of Jeju Island, South Korea, and subjected to a polyphasic taxonomic study. The temperature, pH and NaCl ranges for growth were 10–30 °C, pH 6.0–10.0 and 2.0–5.0 %, respectively. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain CNU001T belonged to the genus Erythrobacter in the family Erythrobacteraceae , with Erythrobacter longus DSM 6997T (96.6 % sequence similarity), Erythrobacter gaetbuli SW-161T (96.3 %), Erythrobacter vulgaris 022 2-10T (96.2 %), Erythrobacter nanhaisediminis T30T (96.1 %) and other members of the genus Erythrobacter (<96.0 %) identified as the novel strain’s closest relatives. The major cellular fatty acids were C18 : 1ω7c and C17 : 1ω6c. The polar lipids were found to be diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, phosphatidylglycerol, one sphingoglycolipid, one unidentified aminolipid and six other unidentified lipids. The major respiratory quinone was ubiquinone-10 (UQ-10) and the genomic DNA G+C content of the novel strain was 58.9 mol%. On the basis of phenotypic, phylogenetic and genotypic data, strain CNU001T represents a novel species within the genus Erythrobacter , for which the name Erythrobacter jejuensis sp. nov. is proposed. The type strain is CNU001T ( = KCTC 23090T  = JCM 16677T).


2014 ◽  
Vol 64 (Pt_6) ◽  
pp. 2084-2088 ◽  
Author(s):  
Lijing Jiang ◽  
Hongxiu Xu ◽  
Zongze Shao ◽  
Minnan Long

A Gram-stain-negative, strictly aerobic, chemoheterotrophic marine bacterium, designated 20V17T, was isolated from a deep-sea hydrothermal vent chimney collected from the South-west Indian Ridge. Cells of strain 20V17T were motile, short rods, 1.2–1.8 µm in length and 0.5–0.7 µm in width. Growth was observed at between 20 and 37 °C (optimum 25 °C–28 °C), pH 5.0 and 8.0 (optimum pH 7.0) and 0.5 and 8 % (w/v) NaCl (optimum 1.5–2.0 % NaCl). The major fatty acids were C18 : 1ω7c (74.4 %), C19 : 0 cyclo ω8c (11 %), C18 : 0 (5.1 %) and C18 : 0 3-OH (2.8 %), and the polar lipid profile comprised diphosphatidylglycerol, phosphatidylethanolamine, an unidentified glycolipid and four unidentified phospholipids. Ubiquinone 10 was the major quinone. The G+C content of genomic DNA was 66.3 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain 20V17T belonged to the genus Defluviimonas and shared 96.5 and 96.1 % sequence similarity with Defluviimonas denitrificans D9-3T and Defluviimonas aestuarii BS14T, respectively. On the basis of the taxonomic data obtained in this study, strain 20V17T represents a novel species of the genus Defluviimonas , for which the name Defluviimonas indica sp. nov. is proposed. The type strain is 20V17T (CGMCC 1.10859T = JCM 17871T = MCCC 1A01802T).


2013 ◽  
Vol 63 (Pt_10) ◽  
pp. 3551-3555 ◽  
Author(s):  
Lei Song ◽  
Hongcan Liu ◽  
Ying Huang ◽  
Xin Dai ◽  
Yuguang Zhou

A Gram-staining-negative, strictly aerobic, non-gliding, rod-shaped bacterial strain, designated SW105T, was isolated from a seawater sample collected from the Indian Ocean. The strain produced flexirubin-type pigments and grew at 15–45 °C (optimum, 35 °C), at pH 5.5–8.5 (optimum, pH 7.0–7.5) and in the presence of 0–5.0 % (w/v) NaCl (optimum, 1.0–1.5 %). The predominant cellular fatty acids were iso-C15 : 0, summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), iso-C17 : 1ω9c and iso-C17 : 0 3-OH. The major menaquinone was menaquinone 6 (MK-6) and the major polar lipids were phosphatidylethanolamine and two unidentified aminophospholipids. The genomic DNA G+C content of strain SW105T was 36.2 mol%. Phylogenetic analyses based on 16S rRNA gene sequences revealed that the novel isolate was related to members of the genus Flavobacterium , showing the highest similarity to Flavobacterium ummariense DS-12T and Flavobacterium ceti CCUG 52969T (94.3 and 93.0 % sequence similarity, respectively). On the basis of phylogenetic inference and phenotypic characteristics, it is proposed that strain SW105T represents a novel species of the genus Flavobacterium , for which the name Flavobacterium marinum sp. nov. is proposed. The type strain is SW105T ( = CGMCC 1.10825T = JCM 18132T).


2015 ◽  
Vol 65 (Pt_2) ◽  
pp. 516-521 ◽  
Author(s):  
Gaiyun Zhang ◽  
Yubian Zhang ◽  
Xijie Yin ◽  
Shuang Wang

A Gram-staining-positive, aerobic, motile and non-spore-forming actinobacteria, designated strain F10T, was isolated from a deep-sea sediment of the western Pacific Ocean. Phylogenetic and phenotypic properties of the organism supported that it belonged to the genus Nesterenkonia . Strain F10T shared highest 16S rRNA gene sequence similarity of 96.8 % with Nesterenkonia aethiopica DSM 17733T, followed by Nesterenkonia xinjiangensis YIM 70097T (96.7 %) and Nesterenkonia alba CAAS 252T (96.6 %). The organism grew at 4–50 °C, at pH 7.0–12.0 and in the presence of 0–12 % (w/v) NaCl, with optimal growth occurring at 40 °C, at pH 9.0 and in the presence of 1 % (w/v) NaCl. The peptidoglycan type was A4(alpha), l-Lys–Gly–l-Glu. The polar lipid profile of strain F10T consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, two unknown glycolipids and two unknown lipids. The isolate contained MK-9 (92 %) and MK-8 (5.8 %) as the major components of the menaquinone system, and anteiso-C17 : 0 (50.9 %) and anteiso-C15 : 0 (29.8 %) as the predominant fatty acids. The G+C content of the genomic DNA of strain F10T was 66.2 mol%. Based on phenotypic, genotypic and phylogenetic analyses, strain F10T represents a novel species of the genus Nesterenkonia for which the name Nesterenkonia alkaliphila sp. nov. is proposed. The type strain is F10T ( = LMG 28112T = CGMCC 1.12781T = JCM 19766T = MCCC 1A09946T).


2014 ◽  
Vol 64 (Pt_1) ◽  
pp. 122-127 ◽  
Author(s):  
Tong Yu ◽  
Zenghu Zhang ◽  
Xiaoyang Fan ◽  
Xiaochong Shi ◽  
Xiao-Hua Zhang

A novel Gram-stain-negative, rod-shaped, non-flagellated, strictly aerobic strain with gliding motility, designated XH134T, was isolated from surface seawater of the South Pacific Gyre (45° 58′ S 163° 11′ W) during the Integrated Ocean Drilling Program Expedition 329. The major respiratory quinone of strain XH134T was MK-6. The dominant fatty acids of strain XH134T were iso-C15 : 0, iso-C15 : 1 G, C16 : 1ω6c and/or C16 : 1ω7c, iso-C17 : 0 3-OH, iso-C15 : 0 3-OH and 10-methyl C16 : 0 and/or iso-C17 : 1ω9c. The polar lipids of strain XH134T comprised phosphatidylethanolamine, one unknown aminolipid and three unknown polar lipids. The DNA G+C content of strain XH134T was 32.4 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that the novel strain was related most closely to Aquimarina macrocephali JAMB N27T with 96.9 % sequence similarity. A number of phenotypic characteristics distinguished strain XH134T from described members of the genus Aquimarina . On the basis of combined phenotypic and phylogenetic analyses, strain XH134T represents a novel species of the genus Aquimarina , for which the name Aquimarina megaterium sp. nov. is proposed. The type strain is XH134T ( = CGMCC 1.12186T = JCM 18215T).


2013 ◽  
Vol 63 (Pt_3) ◽  
pp. 934-938 ◽  
Author(s):  
Wen-Ming Chen ◽  
Rey-Chang Chang ◽  
Chih-Yu Cheng ◽  
Yu-Wen Shiau ◽  
Shih-Yi Sheu

A novel bacterium, designated strain JchiT, was isolated from soil in Taiwan and characterized using a polyphasic approach. Cells of strain JchiT were aerobic, Gram-stain-negative, motile and rod-shaped. They contained poly-β-hydroxybutyrate granules and formed dark-yellow colonies. Growth occurred at 20–37 °C (optimum between 25 and 30 °C), at pH 6.0–8.0 (optimum between pH 7.0 and pH 8.0) and with 0–2 % NaCl (optimum between 0 and 1 %). Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain JchiT belonged to the genus Jeongeupia and that its closest neighbour was Jeongeupia naejangsanensis BIO-TAS4-2T (98.0 % sequence similarity). The major fatty acids (>10 %) of strain JchiT were summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c), C16 : 0 and C18 : 1ω7c. The major cellular hydroxy fatty acid was C12 : 0 3-OH. The isoprenoid quinone was Q-8 and the genomic DNA G+C content was 66.1 mol%. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylserine and two unidentified phospholipids. The DNA–DNA relatedness value between strain JchiT and J. naejangsanensis BIO-TAS4-2T was about 41.0 %. On the basis of the genotypic and phenotypic data, strain JchiT represents a novel species in the genus Jeongeupia , for which the name Jeongeupia chitinilytica sp. nov. is proposed. The type strain is JchiT ( = BCRC 80367T  = KCTC 23701T).


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