scholarly journals Pontirhabdus pectinivorans gen. nov., sp. nov., isolated from seawater

2011 ◽  
Vol 61 (10) ◽  
pp. 2475-2481 ◽  
Author(s):  
Hana Yi ◽  
Jang-Cheon Cho ◽  
Jongsik Chun

A yellow-coloured, rod-shaped, Gram-reaction-negative and aerobic bacterial strain, designated JC2675T, was isolated from a seawater sample from Jeju Island, Korea. The isolate required sea salts for growth. Gliding motility was observed. Flexirubin-type pigments were absent. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain JC2675T represented a distinct phyletic line that reflected a novel generic status within the family Flavobacteraceae with relatively low gene sequence similarities (<95.7 %) to other recognized genera. The predominant isoprenoid quinone (MK-6) and DNA G+C content (30 mol%) were consistent with the assignment of the novel strain to the family Flavobacteriaceae, but overall phenotypic traits demonstrated that the novel strain was not closely affiliated with any previously described genus. Based on data from a study using a polyphasic taxonomic approach, it is proposed that strain JC2675T represents a new genus and novel species belonging to the family Flavobacteriaceae, for which the name Pontirhabdus pectinivorans gen. nov., sp. nov. is proposed. The type strain of the type species is JC2675T ( = KACC 14153T = JCM 17107T).

2011 ◽  
Vol 61 (10) ◽  
pp. 2469-2474 ◽  
Author(s):  
Hana Yi ◽  
Jongsik Chun

A yellow-coloured, rod-shaped, Gram-reaction-negative, aerobic bacterial strain, designated JC2132T, was isolated from a tidal flat sediment sample from Ganghwa Island, Korea. The isolate required sea salts for growth. Cells produced non-diffusible carotenoid pigments, but flexirubin-type pigments were absent. Gliding motility was observed. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain JC2132T represented a distinct phyletic line that reflected a novel generic status within the family Flavobacteriaceae with relatively low sequence similarities (<95 %) to members of other genera with validly published names. The predominant isoprenoid quinone (MK-6) and DNA G+C content (35 mol%) were consistent with assignment of the isolate to the family Flavobacteriaceae, but overall phenotypic traits demonstrated that strain JC2132T was not closely affiliated with any previously described genera. Based on taxonomic data obtained using a polyphasic approach, it is proposed that strain JC2132T represents a novel species in a new genus belonging to the family Flavobacteriaceae, for which the name Snuella lapsa gen. nov., sp. nov. is proposed; the type strain of the type species is JC2132T ( = KACC 14152T = JCM 17111T).


2011 ◽  
Vol 61 (7) ◽  
pp. 1515-1520 ◽  
Author(s):  
Jaewoo Yoon ◽  
Satoru Matsuda ◽  
Kyoko Adachi ◽  
Hiroaki Kasai ◽  
Akira Yokota

A Gram-negative-staining, obligately aerobic, non-motile, rod-shaped and chemoheterotrophic bacterium, designated strain MN1-1006T, was isolated from an ascidian (sea squirt) sample, and was studied using a polyphasic taxonomic approach. Phylogenetic analyses based on 16S rRNA gene sequences indicated that the new isolate shared approximately 93–99% sequence similarity with recognized species of the genus Rubritalea within the phylum ‘Verrucomicrobia’. DNA–DNA hybridization values between strain MN1-1006T and Rubritalea squalenifaciens HOact23T and Rubritalea sabuli YM29-052T were 57% and 14.5%, respectively. Strain MN1-1006T produced carotenoid compounds that rendered the cell biomass a reddish pink colour. The strain also contained squalene. The cell-wall peptidoglycan of the novel strain contained muramic acid and meso-diaminopimelic acid. The DNA G+C content of strain MN1-1006T was 51.4 mol%. The major cellular fatty acids were iso-C14:0, iso-C16:0 and anteiso-C15:0. The major isoprenoid quinone was MK-9. On the basis of these data, it was concluded that strain MN1-1006T represents a novel species of the genus Rubritalea, for which the name Rubritalea halochordaticola sp. nov. is proposed. The type strain is MN1-1006T ( = KCTC 23186T = NBRC 107102T).


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.


2012 ◽  
Vol 62 (Pt_5) ◽  
pp. 1061-1068 ◽  
Author(s):  
Hana Yi ◽  
Jang-Cheon Cho ◽  
Jongsik Chun

Two yellow, rod-shaped, Gram-reaction-negative, strictly aerobic bacterial strains, designated JC2682T and JC2681T, were isolated from a seawater sample of Jeju Island, Korea. The isolates required sea salts for growth and showed gliding motility. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strains JC2682T and JC2681T shared 96.9 % similarity and formed a robust monophyletic group within the radiation encompassing the family Flavobacteriaceae . This distinct clade, which had varying branch positions depending on the tree-making algorithm used, represents a new genus within the family Flavobacteriaceae . The predominant isoprenoid quinone (menaquinone 6, MK-6) and DNA G+C content (27–33 mol%) were consistent with its assignment to the family Flavobacteriaceae , but the polar lipid profile, fatty acid composition and overall phenotypic traits demonstrated that the test strains were not closely affiliated to any recognized genera. Based on data from the present polyphasic taxonomic study, strains JC2682T and JC2681T are considered to represent two novel species of a new genus in the family Flavobacteriaceae , for which the names Flavivirga jejuensis gen. nov., sp. nov. and Flavivirga amylovorans sp. nov. are proposed, respectively. The type strain of Flavivirga jejuensis is JC2682T ( = KACC 14158T  = JCM 17113T). The type strain of Flavivirga amylovorans is JC2681T ( = KACC 14157T  = JCM 17112T). Amended descriptions of the genera Psychroserpens and Lacinutrix are provided.


2010 ◽  
Vol 60 (8) ◽  
pp. 1735-1739 ◽  
Author(s):  
Yuki Muramatsu ◽  
Mai Takahashi ◽  
Mika Kaneyasu ◽  
Takao Iino ◽  
Ken-ichiro Suzuki ◽  
...  

The taxonomic position of three bacterial strains, Asr22-19T, NBRC 101035 and NBRC 101041, isolated from shellfish in Japan, was determined by using a polyphasic taxonomic approach. The strains were facultatively anaerobic, motile by gliding and Gram-staining-negative slender rods. Their major respiratory quinone was menaquinone-7 and their predominant cellular fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH, iso-C15 : 0 3-OH, C16 : 0 3-OH, and C16 : 0. The G+C content of the genomic DNA was 42.0–42.7 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that the strains clustered with the genus Persicobacter in the family ‘Flammeovirgaceae’. DNA–DNA relatedness values were higher than 68 % among strains Asr22-19T, NBRC 101035 and NBRC 101041, and were lower than 28 % between strain Asr22-19T and Persicobacter diffluens NBRC 15940T. The three novel strains could be differentiated from Persicobacter diffluens by several phenotypic characteristics. On the basis of these results, the novel species Persicobacter psychrovividus sp. nov. (type strain Asr22-19T=NBRC 101262T=CIP 109100T) is proposed and emended descriptions are given for the genus Persicobacter and for Persicobacter diffluens.


2011 ◽  
Vol 61 (6) ◽  
pp. 1402-1407 ◽  
Author(s):  
Shih-Yi Sheu ◽  
Tzu-Fang Chiu ◽  
Chiu-Chung Young ◽  
A. B. Arun ◽  
Wen-Ming Chen

A bacterial strain, designated an-8T, was isolated from a freshwater shrimp culture pond in Taiwan and characterized using a polyphasic taxonomic approach. Cells of strain an-8T were Gram-reaction-negative, aerobic, rod-shaped and non-motile, formed yellow-pigmented colonies and grew at 15–30 °C (optimum 25 °C), pH 7–8 (optimum pH 8.0) and in 0–1 % (w/v) NaCl (optimum 0 %). Phylogenetic analyses based on 16S rRNA gene sequences showed that strain an-8T belonged to the genus Flavobacterium and its most closely related neighbours were Flavobacterium terrigena DS-20T and Flavobacterium terrae R2A1-13T with sequence similarities of 95.1 and 94.9 %, respectively. Strain an-8T contained iso-C15 : 0, summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c), iso-C16 : 0 3-OH, iso-C15 : 0 3-OH, iso-C17 : 0 3-OH and iso-C15 : 1 as the major fatty acids. The major isoprenoid quinone was MK-6. The polar lipid profile consisted of a mixture of phosphatidylethanolamine, phosphatidyldimethylethanolamine, phosphatidylserine and several unidentified polar lipids. The G+C content of the genomic DNA was 39.8 mol%. On the basis of the phylogenetic and phenotypic data, strain an-8T represents a novel species of the genus Flavobacterium, for which the name Flavobacterium macrobrachii sp. nov. is proposed. The type strain is an-8T ( = BCRC 17965T  = LMG 25203T).


2007 ◽  
Vol 57 (11) ◽  
pp. 2613-2617 ◽  
Author(s):  
C. C. Young ◽  
M.-J. Ho ◽  
A. B. Arun ◽  
W.-M. Chen ◽  
W.-A. Lai ◽  
...  

The taxonomic status of a yellow-coloured bacterial isolate from an oil-contaminated soil sample was determined using a polyphasic taxonomic approach. Comparative analysis of 16S rRNA gene sequences showed that the novel isolate formed a distinct phyletic line within the genus Sphingobium. The generic assignment was confirmed by chemotaxonomic data, which revealed: a fatty acid profile that is characteristic of the genus Sphingobium consisting of straight-chain saturated and unsaturated as well as 2-OH fatty acids; a ubiquinone with ten isoprene units (Q-10) as the predominant respiratory quinone; a polar lipid pattern consisting of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidylcholine and sphingoglycolipid, and spermidine as the major polyamine component. Genotypic and phenotypic data show that the new isolate merits classification as a representative of a novel species of the genus Sphingobium, for which the name Sphingobium olei sp. nov. is proposed. The type strain is IMMIB HF-1T (=DSM 18999T=CCUG 54329T).


2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 2038-2042 ◽  
Author(s):  
Seong Chan Park ◽  
Yeoung Min Hwang ◽  
Han Na Choe ◽  
Keun Sik Baik ◽  
Hyangmi Kim ◽  
...  

An orange-coloured, rod-shaped, Gram-reaction-negative and aerobic bacterial strain, designated KYW589T, was isolated from seawater collected from Gwangyang Bay, Republic of Korea. The isolate required sea salts for growth. Gliding motility was observed. Flexirubin-type pigments were absent. Major cellular fatty acids (>10 % of the total) were iso-C15 : 0, iso-C17 : 0 3-OH, iso-C15 : 1 G, C16 : 0, iso-C15 : 0 3-OH and C18 : 0. The main polar lipids were phosphatidylethanolamine, two unidentified aminolipids and two unidentified lipids. The predominant isoprenoid quinone was MK-6. The DNA G+C content was 38.6±0.7 mol% (mean±sd of three determinations). Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain KYW589T belongs to the family Flavobacteriaceae , and was related to the genus Algibacter . Based on data from a study using a polyphasic taxonomic approach, it is proposed that strain KYW589T represents a novel species belonging to the genus Algibacter , for which the name Algibacter aquimarinus sp. nov. is proposed. The type strain is KYW589T ( = KCTC 23928T  = JCM 18287T). Reclassification of Pontirhabdus pectinivorans Yi et al. 2011 to the genus Algibacter , as Algibacter pectinivorans comb. nov. (type strain JC2675T  = KACC 14153T  = JCM 17107T), is also proposed.


2010 ◽  
Vol 60 (9) ◽  
pp. 2061-2065 ◽  
Author(s):  
Yochan Joung ◽  
Jaeho Song ◽  
Kiyoung Lee ◽  
Hyun-Myung Oh ◽  
Kiseong Joh ◽  
...  

A Gram-negative, non-motile, non-gliding, strictly aerobic, pale yellow colony-forming, rod-shaped bacterial strain, designated HM0024T, was isolated from coastal seawater of the Yellow Sea and subjected to a polyphasic taxonomy study. Based on 16S rRNA gene sequence similarities, strain HM0024T was most closely related to Chryseobacterium balustinum LMG 8329T (94.4 %), Chryseobacterium scophthalmum LMG 13028T (94.4 %), Chryseobacterium piscium LMG 23089T (94.3 %) and Elizabethkingia meningoseptica ATCC 13253T (94.0 %) and shared less than 92 % sequence similarity with other members of the family Flavobacteriaceae. Phylogenetic analyses showed that strain HM0024T formed an independent phyletic line of descent within the family Flavobacteriaceae. The DNA G+C content of the strain was 29.6 mol% and its major cellular fatty acids (>10 %) were iso-C15 : 0, iso-C17 : 0 3-OH, iso-C17 : 1 ω7c and summed feature 3 (C16 : 1 ω6c and/or C16 : 1 ω7c). The major isoprenoid quinone was MK-6 and the major polar lipids were phosphatidylethanolamine and several aminolipids. Strain HM0024T was differentiated from phylogenetically related members of the family by having lower DNA G+C content, larger proportions of summed feature 3, anteiso-C15 : 0 and iso-C16 : 0 3-OH and particular phenotypic characteristics. On the basis of phenotypic and phylogenetic data, strain HM0024T is classified as a representative of a novel genus and species, for which the name Soonwooa buanensis gen. nov., sp. nov. is proposed. The type strain of Soonwooa buanensis is HM0024T (=KCTC 22689T =CECT 7503T).


2007 ◽  
Vol 57 (11) ◽  
pp. 2660-2664 ◽  
Author(s):  
Dong-Jin Park ◽  
Syed G. Dastager ◽  
Jae-Chan Lee ◽  
Soo-Hwan Yeo ◽  
Jung-Hoon Yoon ◽  
...  

A mesophilic strain, designated A 9500T, was isolated from a soil sample collected from Sobaek Mountain, South Korea, and its taxonomic position was investigated by using a polyphasic approach. The novel strain grew well on different ISP media and no diffusible pigments were produced. The optimum temperature for growth was 32 °C. The aerial mycelium was well developed, but not fragmented. The strain was Gram-positive, non-motile and formed endospores on vegetative and aerial hyphae with a spiny surface. Cell walls of strain A 9500T contained meso-diaminopimelic acid as the diagnostic amino acid, but no characteristic sugars or other amino acids were found (chemotype-III). The major menaquinone was MK-9(H4) and the minor menaquinone was MK-10(H4) and they were detected at a ratio of 7 : 3. Phosphatidylethanolamine was the diagnostic phospholipid. The G+C content of the genomic DNA was 39.4 mol%. The major fatty acids were anteiso-C15 : 0 (43.34 %), iso-C16 : 0 (14.23 %) and C16 : 0 (7.90 %), a composition that differed from members of related genera of the family Thermoactinomycetaceae. The novel strain formed a distinct clade in a phylogenetic tree based on 16S rRNA gene sequences. On the basis of a range of phenotypic and genotypic data and on 16S rRNA gene sequence similarities (88.35–90.38 %), it is suggested that strain A 9500T represents a novel species in a new genus with the name Shimazuella kribbensis gen. nov., sp. nov. The type strain of the type species is A 9500T (=KCTC 9933T=DSM 45090T).


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