scholarly journals Mameliella phaeodactyli sp. nov., a member of the family Rhodobacteraceae isolated from the marine algae Phaeodactylum tricornutum

2015 ◽  
Vol 65 (Pt_5) ◽  
pp. 1617-1621 ◽  
Author(s):  
Zhangran Chen ◽  
Jingyan Zhang ◽  
Xueqian Lei ◽  
Qiliang Lai ◽  
Luxi Yang ◽  
...  

A novel Gram-staining-negative, aerobic, rod-shaped, non-motile, yellow bacterium designated strain KD53T, was isolated from a culture of the alga Phaeodactylum tricornutum from Xiamen, Fujian Province, China. 16S rRNA gene sequence comparison showed that strain KD53T was a member of the Roseobacter clade within the family Rhodobacteraceae , forming a distinct lineage with species of the genus Mameliella . The 16S rRNA gene sequence similarities between strain KD53T and other strains examined were all less than 97.0 %. Strain KD53T was found to grow optimally at 28 °C, at pH 7.5–8.0 and in the presence of 3 % (w/v) NaCl. The dominant fatty acids of strain KD53T were C18 : 1ω6c and/or C18 : 1ω7c, C18 : 0 and C16 : 0. The major polar lipids were phosphatidylcholine, phosphatidylethanolamine and phosphatidylglycerol. The DNA G+C content was 65 mol% and the major respiratory quinone was ubiquinone 10 (Q-10). On the basis of phenotypic data and phylogenetic inference, strain KD53T represents a novel member of the genus Mameliella , then the name Mameliella phaeodactyli sp. nov. is proposed. The type strain is KD53T ( = MCCC 1K00273T = KCTC 42178T).

2014 ◽  
Vol 64 (Pt_10) ◽  
pp. 3496-3502 ◽  
Author(s):  
Zhangran Chen ◽  
Xueqian Lei ◽  
Qiliang Lai ◽  
Yi Li ◽  
Bangzhou Zhang ◽  
...  

A novel Gram-staining-negative, aerobic, rod-shaped, non-motile, reddish-orange and chemoheterotrophic bacteria, designated strain KD52T, was isolated from a culture of the alga Phaeodactylum tricornutum from Xiamen, Fujian Province, China. 16S rRNA gene sequence comparison showed that strain KD52T was a member of the family Saprospiraceae , forming a distinct lineage with ‘Portibacter lacus’ KCTC 23747. The 16S rRNA gene sequence similarity between strain KD52T and the type strains of species of the family Saprospiraceae ranged from 86 % to 89 %. Growth occurred at 20–37 °C (optimum, 28 °C), in the presence of 1–9 % (w/v) NaCl (optimum, 2.5 %) and at pH 5–8.5 (optimum, pH 6.0). The dominant fatty acids (>10 %) of strain KD52T were iso-C15 : 0 (33.1 %), iso-C15 : 1 G (14.8 %) and summed feature 3 (comprising C16 : 1ω7c and/or C16 : 1ω6c, 13.8 %). The major polar lipids were diphosphatidylglycerol, three unidentified phospholipids, four unknown lipids and one unidentified aminolipid. The DNA G+C content was 51 mol% and the major respiratory quinone was menaquinone-7 (MK-7). On the basis of phenotypic data and phylogenetic inference, strain KD52T represents a novel species of a new genus, for which the name Phaeodactylibacter xiamenensis gen. nov., sp. nov., is proposed. The type strain is KD52T ( = MCCC 1F01213T = KCTC 32575T).


2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 2043-2048 ◽  
Author(s):  
Yi Li ◽  
Shijie Bai ◽  
Caiyun Yang ◽  
Qiliang Lai ◽  
Huajun Zhang ◽  
...  

A Gram-negative, short-rod-shaped, orange-pigmented bacterium, strain LYYY01T, was isolated from a mangrove sediment sample collected from Yunxiao mangrove National Nature Reserve, Fujian Province, China. 16S rRNA gene sequence comparisons showed that strain LYYY01T is a member of the family Flavobacteriaceae , forming a distinct lineage with species of the genera Meridianimaribacter , Sediminibacter , Gelidibacter and Subsaximicrobium . The 16S rRNA gene sequence similarity between strain LYYY01T and the type strains of related species ranged from 93.9 to 90.9 %. Growth was observed at temperatures from 10 to 38 °C, at salinities from 1 to 7 % and at pH from 6 to 10. The DNA G+C content of the strain was 38.6 mol% and the major respiratory quinone was menaquinone-6 (MK-6). The major fatty acids were iso-C15 : 1 (27.6 %), iso-C15 : 0 (24.0 %), iso-C17 : 0 3-OH (12.0 %) and iso-C16 : 0 3-OH (6.2 %). According to its morphology, physiology, fatty acid composition and 16S rRNA gene sequence data, strain LYYY01T is considered to represent a novel species of a new genus in the family Flavobacteriaceae , for which the name Mangrovimonas yunxiaonensis gen. nov., sp. nov. is proposed. The type strain of Mangrovimonas yunxiaonensis is LYYY01T ( = CGMCC 1.12280T = LMG 27142T).


2014 ◽  
Vol 64 (Pt_11) ◽  
pp. 3610-3615 ◽  
Author(s):  
Azadeh Shahinpei ◽  
Mohammad Ali Amoozegar ◽  
Seyed Abolhassan Shahzadeh Fazeli ◽  
Peter Schumann ◽  
Antonio Ventosa

A novel Gram-staining-negative, motile, non-pigmented, facultatively anaerobic, spirillum-shaped, halophilic and alkaliphilic bacterium, designated strain GCWy1T, was isolated from water of the coastal–marine wetland Gomishan in Iran. The strain was able to grow at NaCl concentrations of 1–10 % (w/v) and optimal growth was achieved at 3 % (w/v). The optimum pH and temperature for growth were pH 8.5 and 30 °C, while the strain was able to grow at pH 7.5–10 and 4–40 °C. Phylogenetic analysis based on the comparison of the 16S rRNA gene sequence placed the isolate within the class Gammaproteobacteria as a separate deep branch, with 92.1 % or lower sequence similarity to representatives of the genera Saccharospirillum and Reinekea and less than 91.0 % sequence similarity with other remotely related genera. The major cellular fatty acids of the isolate were C18 : 1ω7c, C16 : 0 and C17 : 0, and the major components of its polar lipid profile were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine. The cells of strain GCWy1T contained the isoprenoid quinones Q-9 and Q-8 (81 % and 2 %, respectively). The G+C content of the genomic DNA of this strain was 52.3 mol%. On the basis of 16S rRNA gene sequence analysis in combination with chemotaxonomic and phenotypic data, strain GCWy1T represents a novel species in a new genus in the family ‘ Saccharospirillaceae ’, order Oceanospirillales , for which the name Salinispirillum marinum gen. nov., sp. nov. is proposed. The type strain of the type species is GCWy1T ( = IBRC-M 10765T = CECT 8342T).


2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 2124-2131 ◽  
Author(s):  
Gwang Il Jang ◽  
Yirang Cho ◽  
Byung Cheol Cho

A Gram-staining-positive, non-motile, strictly aerobic, non-spore-forming, vibrio-shaped bacterial strain, CL-TW6T, was isolated from a reservoir seawater sample from a solar saltern in Korea. Analysis of the 16S rRNA gene sequence of strain CL-TW6T revealed a clear affiliation with the family Microbacteriaceae . Strain CL-TW6T showed the closest phylogenetic relationships with the genera Yonghaparkia and Microcella , with 16S rRNA gene sequence similarity of 94.8–95.3 %. The strain grew in the presence of 1–9 % sea salts, at 15–35 °C and at pH 7.0–9.0. The major cellular fatty acids of strain CL-TW6T were anteiso-C15 : 0 (32.6 %), iso-C16 : 0 (20.4 %), iso-C15 : 0 (13.2 %) and iso-C14 : 0 (11.8 %) and the major menaquinones were MK-9 and MK-10. Cell-wall analysis showed that the peptidoglycan of strain CL-TW6T contained 2,4-diaminobutyric acid, alanine, glycine and glutamic acid. The major polar lipids were diphosphatidylglycerol and phosphatidylglycerol. The genomic DNA G+C content of strain CL-TW6T was 60.0 mol%. The combined phenotypic, chemotaxonomic and phylogenetic data showed clearly that strain CL-TW6T could be distinguished from members of the family Microbacteriaceae with validly published names. Thus, strain CL-TW6T should be classified as representing a novel genus and species in the family Microbacteriaceae , for which the name Pontimonas salivibrio gen. nov., sp. nov. is proposed. The type strain of Pontimonas salivibrio is CL-TW6T ( = KCCM 90105T  = JCM 18206T).


2012 ◽  
Vol 62 (Pt_6) ◽  
pp. 1383-1388 ◽  
Author(s):  
Jie Li ◽  
Guang-Tao Zhang ◽  
Jian Yang ◽  
Xin-Peng Tian ◽  
Fa-Zuo Wang ◽  
...  

A novel filamentous bacterium, strain SCSIO 10219T, was isolated from a sediment sample collected from the South China Sea (113° 3.752′ E 18° 1.722′ N) at a depth of 2105 m. Growth was observed at 25–35 °C (optimum 30 °C) and pH 5.0–8.0 (optimum pH 6.0–7.0). The organism formed yellow–white colonies with radial wrinkles. Aerial mycelium was not produced on any of the growth media tested. Phenotypic characterization and 16S rRNA gene sequence analysis indicated that strain SCSIO 10219T belongs to the family Thermoactinomycetaceae . The strain contained ll-diaminopimelic acid in the cell wall. The predominant menaquinone was MK-7. The phospholipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylethanolamine and five unknown phospholipids. Major fatty acids were anteiso-C15 : 0 and iso-C15 : 0. The DNA G+C content was 46.5 mol%. On the basis of chemotaxonomic properties and phylogenetic analysis based on 16S rRNA gene sequence data, it is proposed that this strain represents a novel species in a new genus, Marininema mesophilum gen. nov., sp. nov., in the family Thermoactinomycetaceae . The type strain of the type species is SCSIO 10219T ( = CCTCC AA 2011006T = DSM 45610T). In addition, we propose that the description of the family Thermoactinomycetaceae should be further emended based on the present study.


2012 ◽  
Vol 62 (Pt_8) ◽  
pp. 1932-1936 ◽  
Author(s):  
Mohammad Ali Amoozegar ◽  
Ali Makhdoumi-Kakhki ◽  
Seyed Abolhassan Shahzadeh Fazeli ◽  
Reza Azarbaijani ◽  
Antonio Ventosa

A novel pale pink-pigmented halophilic archaeon, strain DC30T, was isolated from Aran-Bidgol salt lake, a hypersaline playa in Iran. Cells of strain DC30T were non-motile and pleomorphic, from rods to triangular or disc-shaped. Strain DC30T required at least 1.7 M NaCl and 0.05 M MgCl2 for growth (optimum, 3 M NaCl and 0.1 M MgCl2). The optimum pH and temperature for growth of strain DC30T were pH 7.5 and 40 °C, respectively, although it was capable of growth over pH and temperature ranges of 6.5–8.5 and 25–50 °C, respectively. Analysis of the 16S rRNA gene sequence showed that strain DC30T was a member of the family Halobacteriaceae . However, it had low 16S rRNA gene sequence similarities of 92.4 %, 89.4 % and 89.1 % to the most closely related haloarchaeal taxa, the type species of the genera Halorubrum , Halogranum and Haloplanus , respectively. The DNA G+C content was 66.0 mol%. Phosphatidylglycerol and phosphatidylglycerol phosphate methyl ester, common phospholipids found in haloarchaea, were present. Three minor phospholipids and one unidentified glycolipid were also observed. The only quinone present was MK-8(II-H2). The physiological, biochemical and phylogenetic differences between strain DC30T and other previously described genera of extremely halophilic archaea suggest that strain DC30T represents a novel species in a new genus within the family Halobacteriaceae , for which the name Halopenitus persicus gen. nov., sp. nov. is proposed. The type strain of Halopenitus persicus is DC30T ( = IBRC 10041T = KCTC 4046T).


2014 ◽  
Vol 64 (Pt_9) ◽  
pp. 2939-2943 ◽  
Author(s):  
Bin Cheng ◽  
Chunfang Li ◽  
Qiliang Lai ◽  
Miaofen Du ◽  
Zongze Shao ◽  
...  

A Gram-reaction-negative, non-spore-forming strain, designated 5DNS001T, was isolated from soil of an ancient salt-extracting facility in China. Analysis of the almost-complete 16S rRNA gene sequence of the bacterium suggested that it belongs to the genus Sinomicrobium in the family Flavobacteriaceae . It exhibited highest 16S rRNA gene sequence similarity with Sinomicrobium oceani SCSIO 03483T (96.3 %), but less than 93 % sequence similarity with members of the genera Imtechella , Zhouia and Joostella and other recognized members of the family Flavobacteriaceae . The strain was able to hydrolyse pectin and starch by producing pectinase and α-amylase. The DNA G+C content of the strain was 42.6 mol%. The major respiratory quinone was MK-6. The major polar lipid detected in the strain was phosphatidylethanolamine. The dominant cellular fatty acids were iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (C16 : 1ω6c/C16 : 1ω7c). Based on phenotypic, genotypic, chemotaxonomic and phylogenetic analyses, a novel species, Sinomicrobium pectinilyticum, is proposed. The type strain is 5DNS001T ( = CGMCC1.11000T = KCTC23776T).


2019 ◽  
Vol 69 (4) ◽  
pp. 1202-1206 ◽  
Author(s):  
Moriyuki Hamada ◽  
Satomi Saitou ◽  
Tomohiko Tamura

A novel actinobacterium, designated HIsM16-52T, was isolated from beach sand collected from Ishigaki Island in Japan and its taxonomic position was investigated by a polyphasic approach. Strain HIsM16-52T contained both lysine and ornithine as the diagnostic diamino acids of the peptidoglycan. The predominant isoprenoid quinone was MK-8(H4) and the major fatty acids were anteiso-C15 : 0, C16 : 0 and C14 : 0. The detected polar lipids were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol and two unidentified phospholipids. The DNA G+C content was determined to be 73.4 mol%. Phylogenetic analyses based on 16S rRNA gene sequence comparison revealed that strain HIsM16-52T fell within the cluster of the family Beutenbergiaceae and formed a reliable cluster with the members of the genus Serinibacter . The highest 16S rRNA gene sequence similarities were obtained to species of the genus Serinibacter (97.8–97.9 %), followed by the genera Miniimonas (97.0 %), Beutenbergia (96.4 %) and Salana (95.9 %). However, strain HIsM16-52T differed from the members of the genus Serinibacter and the other genera within the family Beutenbergiaceae in terms of chemotaxonomic characteristics. Therefore, strain HIsM16-52T is concluded to represent a novel genus and species of the family Beutenbergiaceae , for which the name Litorihabitans aurantiacus gen. nov., sp. nov. is proposed. The type strain of L. aurantiacus is HIsM16-52T (=NBRC 112290T=TBRC 7759T).


2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 572-578 ◽  
Author(s):  
Soo-Jin Kim ◽  
Jun-Muk Lim ◽  
Jae-Hyung Ahn ◽  
Hang-Yeon Weon ◽  
Moriyuki Hamada ◽  
...  

Bacterial strains KIS82-1T and GRS42T were isolated from soil and from sap of Acer mono, respectively, in the Republic of Korea. Both strains were aerobic, Gram-stain-positive, mesophilic, rod-shaped and motile. Phylogenetically, both strains belonged to the family Microbacteriaceae of the phylum Actinobacteria . The 16S rRNA gene sequence of strain KIS82-1T showed the highest similarity to those of Frondihabitans peucedani RS-15T (97.6 %), Frigoribacterium mesophilum MSL-08T (97.2 %) and Labedella gwakjiensis KSW2-17T (97.0 %), while strain GRS42T showed the highest 16S rRNA gene sequence similarity to Frondihabitans peucedani RS-15T (98.7 %), Frondihabitans cladoniiphilus CafT13T (98.4 %), Frondihabitans australicus E1HC-02T (98.2 %) and Frigoribacterium faeni 801T (97.3 %). The 16S rRNA gene sequence similarity between GRS42T and KIS82-1T was 97.0 %. Phylogenetic trees indicated that strain GRS42T was firmly grouped into the genus Frondihabitans , while strain KIS82-1T did not show a clear affiliation to any genus within the family Microbacteriaceae . Strain KIS82-1T showed type B1β peptidoglycan with 2,4-diamino-l-butyric acid as the diamino acid. It had MK-11, MK-10 and MK-12 as respiratory quinones, anteiso-C15 : 0, iso-C16 : 0 and iso-C14 : 0 as major cellular fatty acids and diphosphatidylglycerol, phosphatidylglycerol and an unknown glycolipid as predominant polar lipids. The peptidoglycan of strain GRS42T was of type B2β with d-ornithine as the diamino acid. The strain contained MK-8, MK-9 and MK-7 as respiratory quinones, summed feature 8 (C18 : 1ω6c and/or C18 : 1ω7c) as major cellular fatty acid and diphosphatidylglycerol, phosphatidylglycerol and three unknown glycolipids as predominant polar lipids. Strain GRS42T revealed low DNA–DNA hybridization (<50 % relatedness) with closely related strains. Based on the data obtained in the present polyphasic taxonomic study, we propose that strain KIS82-1T represents a novel genus and species and that strain GRS42T represents a novel species in the family Microbacteriaceae . The genus Galbitalea gen. nov. is proposed, with strain KIS82-1T ( = KACC 15520T = NBRC 108727T) as the type strain of the type species, Galbitalea soli sp. nov. Strain GRS42T ( = KACC 15521T = NBRC 108728T) is proposed as the type strain of Frondihabitans sucicola sp. nov.


2013 ◽  
Vol 63 (Pt_6) ◽  
pp. 1995-2001 ◽  
Author(s):  
Jung-Hoon Yoon ◽  
Hye Ryeon Gyeong ◽  
Soo-In Kim

A Gram-staining-negative, non-flagellated, non-gliding and rod-shaped bacterial strain, designated PDB-16T, was isolated from seawater from a seaweed farm on the South Sea in Korea, and its taxonomic position was investigated using a polyphasic approach. Strain PDB-16T grew optimally at 30 °C, at pH 7.0–7.5 and in the presence of 2 % (w/v) NaCl. A neighbour-joining phylogenetic tree based on 16S rRNA gene sequences revealed that strain PDB-16T formed an independent lineage within the evolutionary radiation encompassed by the family Flavobacteriaceae . Strain PDB-16T contained MK-6 as the predominant menaquinone and iso-C15 : 0, iso-C15 : 1 G and iso-C17 : 0 3-OH as the major fatty acids. The major polar lipids detected in strain PDB-16T were phosphatidylethanolamine and two unidentified lipids. The DNA G+C content of strain PDB-16T was 42.1 mol%. Strain PDB-16T exhibited very low 16S rRNA gene sequence similarities of less than 89.7 % to the type strains of any bacterial species with validly published names and less than 90.1 % to uncultured bacteria clones. The 16S rRNA gene sequence similarity values and the differences in phenotypic properties between strain PDB-16T and some phylogenetically related genera were sufficient to support the proposal that strain PDB-16T should be distinguished from previously known genera of the family Flavobacteriaceae . On the basis of the data presented, strain PDB-16T is considered to represent a new genus and novel species, for which the name Sungkyunkwania multivorans gen. nov., sp. nov. is proposed. The type strain of Sungkyunkwania multivorans is PDB-16T ( = KCTC 32138T = CCUG 62952T).


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