Isolates belonging to CDC group II-i belong predominantly to Sphingobacterium mizutaii Yabuuchi et al. 1983: emended descriptions of S. mizutaii and of the genus Sphingobacterium

2012 ◽  
Vol 62 (Pt_11) ◽  
pp. 2598-2601 ◽  
Author(s):  
Georges Wauters ◽  
Michèle Janssens ◽  
Thierry De Baere ◽  
Mario Vaneechoutte ◽  
Pieter Deschaght
Keyword(s):  
Type Species ◽  
Gene Sequence ◽  
Reference Strain ◽  
Rrna Gene ◽  
Content Type ◽  
Link Type ◽  
Group Ii ◽  
Indole Production ◽  
The 16S Rrna Gene

Two clinical strains, NF 296 and NF 931, present in our collection, were identified biochemically as members of CDC group II-i. Determination of the 16S rRNA gene sequence revealed highest similarity with strains of Sphingobacterium mizutaii . Because these strains produced indole, whereas S. mizutaii has been described as indole-negative, we also investigated the type strain and a reference strain of S. mizutaii , LMG 8340T ( = CCUG 15907T) and LMG 8341 ( = CCUG 15908), and found both strains also to be positive for indole production. These data warrant inclusion of some of the CDC group II-i strains into S. mizutaii and emended descriptions of Sphingobacterium mizutaii as indole-production-positive and of the genus Sphingobacterium as variable for indole production.

Caldicellulosiruptor diazotrophicus sp. nov., a thermophilic, nitrogen-fixing fermentative bacterium isolated from a terrestrial hot spring in Japan

2021 ◽  
Vol 71 (9) ◽  
Author(s):  
Yuxin Chen ◽  
Arisa Nishihara ◽  
Takao Iino ◽  
Moriya Ohkuma ◽  
Shin Haruta
Keyword(s):  
Fatty Acids ◽  
16S Rrna ◽  
Type Species ◽  
Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Cellular Fatty Acids ◽  
Link Type ◽  
The 16S Rrna Gene

A novel nitrogen-fixing fermentative bacterium, designated as YA01T, was isolated from Nakabusa hot springs in Japan. The short-rod cells of strain YA01T were Gram-positive and non-sporulating. Phylogenetic trees of the 16S rRNA gene sequence and concatenated sequences of 40 single-copy ribosomal genes revealed that strain YA01T belonged to the genus Caldicellulosiruptor and was closely related to Caldicellulosiruptor hydrothermalis 108T, Caldicellulosiruptor bescii DSM 6725T and Caldicellulosiruptor kronotskyensis 2002T. The 16S rRNA gene sequence of strain YA01T shares less than 98.1 % identity to the known Caldicellulosiruptor species. The G+C content of the genomic DNA was 34.8 mol%. Strain YA01T shares low genome-wide average nucleotide identity (90.31–91.10 %), average amino acid identity (91.45–92.10 %) and <70 % digital DNA–DNA hybridization value (41.8–44.2 %) with the three related species of the genus Caldicellulosiruptor . Strain YA01T grew at 50–78 °C (optimum, 70 °C) and at pH 5.0–9.5 (optimum, pH 6.5). Strain YA01T mainly produced acetate by consuming d(+)-glucose as a carbon source. The main cellular fatty acids were iso-C17 : 0 (35.7 %), C16 : 0 (33.3 %), DMA16 : 0 (6.6 %) and iso-C15 : 0 (5.9 %). Based on its distinct phylogenetic position, biochemical and physiological characteristics, and the major cellular fatty acids, strain YA01T is considered to represent a novel species of the genus Caldicellulosiruptor for which the name Caldicellulosiruptor diazotrophicus sp. nov. is proposed (type strain YA01T=DSM 112098T=JCM 34253T).

scholarly journals Rhizobium rhizoryzae sp. nov., isolated from rice roots

2014 ◽  
Vol 64 (Pt_4) ◽  
pp. 1373-1377 ◽  
Author(s):  
Xiao-Xia Zhang ◽  
Xue Tang ◽  
Rizwan Ali Sheirdil ◽  
Lei Sun ◽  
Xiao-Tong Ma
Keyword(s):  
Type Species ◽  
Gene Sequence ◽  
Novel Species ◽  
Sequence Similarity ◽  
Housekeeping Genes ◽  
Rrna Gene ◽  
Content Type ◽  
Dna Relatedness ◽  
Link Type ◽  
The 16S Rrna Gene

Two strains (J3-AN59T and J3-N84) of Gram-stain-negative, aerobic and rod-shaped bacteria were isolated from the roots of fresh rice plants. The 16S rRNA gene sequence similarity results showed that the similarity between strains J3-AN59T and J3-N84 was 100 %. Both strains were phylogenetically related to members of the genus Rhizobium , and they were most closely related to Rhizobium tarimense ACCC 06128T (97.43 %). Similarities in the sequences of housekeeping genes between strains J3-AN59T and J3-N84 and those of recognized species of the genus Rhizobium were less than 90 %. The polar lipid profiles of both strains were predominantly composed of phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine and an unknown aminophospholipid. The major cellular fatty acids were summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) and C16 : 0. The DNA G+C contents of J3-AN59T and J3-N84 were 55.7 and 57.1 mol%, respectively. The DNA–DNA relatedness value between J3-AN59T and J3-N84 was 89 %, and strain J3-AN59T showed 9 % DNA–DNA relatedness to R. tarimense ACCC 06128T, the most closely related strain. Based on this evidence, we found that J3-AN59T and J3-N84 represent a novel species in the genus Rhizobium and we propose the name Rhizobium rhizoryzae sp. nov. The type strain is J3-AN59T ( = ACCC 05916T = KCTC 23652T).

Transfer of Wautersia numazuensis to the genus Cupriavidus as Cupriavidus numazuensis comb. nov.

2013 ◽  
Vol 63 (Pt_1) ◽  
pp. 208-211 ◽  
Author(s):  
Lourdes Martínez-Aguilar ◽  
Jesús Caballero-Mellado ◽  
Paulina Estrada-de los Santos
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Dna Hybridization ◽  
Type Species ◽  
Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type ◽  
The 16S Rrna Gene

Phylogenetic analysis of the 16S rRNA gene sequences of strains TE26T and K6 belonging to Wautersia numazuensis Kageyama et al. 2005 showed the strains to be deeply intermingled among the species of the genus Cupriavidus . The comparison showed that strain TE26T was closely related to the type strains of Cupriavidus pinatubonensis (99.1 % 16S rRNA gene sequence similarity), C. basilensis (98.7 %), C. necator (98.7 %) and C. gilardii (98.0 %). However, DNA–DNA hybridization experiments (less than 20 % relatedness) demonstrated that strain TE26T is different from these Cupriavidus species. A comparative phenotypic and chemotaxonomic analysis (based on fatty acid profiles) in combination with the 16S rRNA gene sequence phylogenetic analysis and the DNA–DNA hybridization results supported the incorporation of Wautersia numazuensis into the genus Cupriavidus as Cupriavidus numazuensis comb. nov.; the type strain is TE26T ( = LMG 26411T  = DSM 15562T  = CIP 108892T).

scholarly journals Streptomyces graminifolii sp. nov., isolated from bamboo (Sasa borealis) litter

2014 ◽  
Vol 64 (Pt_8) ◽  
pp. 2517-2521 ◽  
Author(s):  
Hyo-Jin Lee ◽  
Kyung-Sook Whang
Keyword(s):  
Dna Hybridization ◽  
Type Species ◽  
Gene Sequence ◽  
Morphological Properties ◽  
Rrna Gene ◽  
Biochemical Tests ◽  
Content Type ◽  
Link Type ◽  
Physiological And Biochemical ◽  
The 16S Rrna Gene

The taxonomic position of strain JL-22T, isolated from litter of a bamboo (Sasa borealis) forest, was determined using a polyphasic approach. The organism had phenotypic and morphological properties consistent with it being a member of the genus Streptomyces . Phylogenetic analysis of the 16S rRNA gene sequence showed that strain JL-22T was closely related to Streptomyces prunicolor NRRL B-12281T (99.2 %), Streptomyces galilaeus JCM 4757T (99.0 %) and Streptomyces chartreusis NBRC 12753T (99.0 %). However, the results of DNA–DNA hybridization and physiological and biochemical tests showed that strain JL-22T could be differentiated from its closest phylogenetic relatives both genotypically and phenotypically. Based on phenotypic and genotypic data, strain JL-22T represents a novel species of the genus Streptomyces , for which the name Streptomyces graminifolii sp. nov. is proposed. The type strain is JL-22T ( = KACC 17180T = NBRC 109806T).

Actinoplanes siamensis sp. nov., isolated from soil

2013 ◽  
Vol 63 (Pt_8) ◽  
pp. 3037-3042 ◽  
Author(s):  
Chanwit Suriyachadkun ◽  
Wipaporn Ngaemthao ◽  
Suwanee Chunhametha ◽  
Chitti Thawai ◽  
Jean-Jacques Sanglier
Keyword(s):  
Type Species ◽  
Gene Sequence ◽  
Novel Species ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Closely Related Species ◽  
Content Type ◽  
Link Type ◽  
Gene Sequence Analysis ◽  
The 16S Rrna Gene

A Gram-positive filamentous bacterial strain that developed large campanulate sporangia at the ends of sporangiophores on substrate mycelium was isolated from bamboo forest soil in Thailand. According to the results of a polyphasic taxonomic study, our isolate had typical characteristics of members of the genus Actinoplanes . The 16S rRNA gene sequence analysis also indicated that strain A-T 6646T belonged to the genus Actinoplanes , being most closely related to Actinoplanes liguriensis DSM 43865T (97.61 %) and Actinoplanes octamycinicus NBRC 14524T (97.52 %). The DNA–DNA relatedness values, which differentiate the new strain from the most closely related species, were significantly below 70 %. The cell-wall peptidoglycan contained meso-diaminopimelic acid. The whole-cell sugars contained xylose and arabinose. The predominant menaquinone was MK-9(H4). The diagnostic phospholipids were phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol. The predominant cellular fatty acids were iso-C16 : 0, anteiso-C17 : 0, iso-C15 : 0 and anteiso-C15 : 0. Following an evaluation of phenotypic, chemotaxonomic and genotypic studies, the isolate is proposed to represent a novel species to be named Actinoplanes siamensis sp. nov. The type strain is A-T 6646T ( = BCC 46194T = NBRC 109076T).

Mucilaginibacter inviolabilis sp. nov., isolated from the phycosphere of Haematococcus lacustris NIES 144 culture

2021 ◽  
Author(s):  
Sang-Ah Lee ◽  
Ve Van Le ◽  
So-Ra Ko ◽  
Nakyeong Lee ◽  
Hee-Mock Oh ◽  
...  
Keyword(s):  
Type Species ◽  
Gene Sequence ◽  
Sequence Similarity ◽  
Rrna Gene ◽  
Unidentified Phospholipid ◽  
Respiratory Quinone ◽  
Content Type ◽  
Link Type ◽  
Haematococcus Lacustris ◽  
The 16S Rrna Gene

A Gram-stain-negative, non-motile, rod-shaped, aerobic bacterial strain, designated HC2T, was isolated from the phycosphere of Haematococcus lacustris NIES 144 culture. Strain HC2T was able to grow at pH 4.5–8.0, at 4–32 °C and in the presence of 0–2 % (w/v) NaCl. Phylogenetic analysis of the 16S rRNA gene sequence revealed that strain HC2T was affiliated to the genus Mucilaginibacter and shared the highest sequence similarity with Mucilaginibacter lappiensis ANJKI2T (98.20 %) and Mucilaginibacter sabulilitoris SMS-12T (98.06 %). Strain HC2T contained summed feature 3 (C16 : 1 ω7c and/or C16 : 1 ω6c) and iso-C15 : 0 as the major fatty acids (>10.0 %). The major polar lipids were phosphatidylethanolamine, one unidentified aminophospholipid, one unidentified phospholipid, two unidentified aminolipids and four unidentified lipids. The respiratory quinone was menaquinone 7 (MK-7). The genomic DNA G+C content was 42.0 %. On the basis of the phenotypic, chemotaxonomic and phylogenetic characteristics, strain HC2T represents a novel species of the genus Mucilaginibacter, for which the name Mucilaginibacter inviolabilis sp. nov. is proposed. The type strain is HC2T (=KCTC 82084T=JCM 34116T).

‘Candidatus Phytoplasma balanitae’ associated with witches’ broom disease of Balanites triflora

2013 ◽  
Vol 63 (Pt_2) ◽  
pp. 636-640 ◽  
Author(s):  
Nang Kyu Kyu Win ◽  
Seung-Yeol Lee ◽  
Assunta Bertaccini ◽  
Shigetou Namba ◽  
Hee-Young Jung
Keyword(s):  
Phylogenetic Analysis ◽  
16S Rrna ◽  
16S Rrna Gene ◽  
Type Species ◽  
Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type ◽  
The 16S Rrna Gene

A phytoplasma was identified in naturally infected wild Balanites triflora plants exhibiting typical witches’ broom symptoms (Balanites witches’ broom: BltWB) in Myanmar. The 16S rRNA gene sequence revealed that BltWB phytoplasma had the highest similarity to that of ‘Candidatus Phytoplasma ziziphi’ and it was also closely related to that of ‘Candidatus Phytoplasma ulmi ’. Phylogenetic analysis of the 16S rRNA gene sequences indicated that the BltWB phytoplasma clustered as a discrete subclade with Elm yellows phytoplasmas. RFLP analysis of the 16S rRNA gene including the 16S–23S spacer region differentiated the BltWB phytoplasma from ‘Ca. P. ziziphi ’, ‘Ca. P. ulmi ’ and ‘Candidatus Phytoplasma trifolii ’. Analysis of additional ribosomal protein (rp) and translocase protein (secY) gene sequences and phylogenetic analysis of BltWB showed that this phytoplasma was clearly distinguished from those of other ‘Candidatus Phytoplasma ’ taxa. Taking into consideration the unique plant host and the restricted geographical occurrence in addition to the 16S rRNA gene sequence similarity, the BltWB phytoplasma is proposed to represent a novel taxon, ‘Candidatus Phytoplasma balanitae’.

Nocardioides marinquilinus sp. nov., isolated from coastal seawater

2013 ◽  
Vol 63 (Pt_7) ◽  
pp. 2594-2599 ◽  
Author(s):  
Yirang Cho ◽  
Gwang Il Jang ◽  
Byung Cheol Cho
Keyword(s):  
Type Species ◽  
Gene Sequence ◽  
Novel Species ◽  
Diaminopimelic Acid ◽  
Rrna Gene ◽  
Strictly Aerobic ◽  
Content Type ◽  
Coastal Seawater ◽  
Link Type ◽  
The 16S Rrna Gene

A Gram-stain-positive, non-motile, strictly aerobic, non-spore-forming and short rod-shaped bacterial strain, CL-GY44T, was isolated from coastal seawater, Korea. Analysis of the 16S rRNA gene sequence of strain CL-GY44T revealed a clear affiliation with the genus Nocardioides . Based on phylogenetic analysis, strain CL-GY44T showed the closest phylogenetic relationship with Nocardioides ginsengagri BX5-10T and Nocardioides plantarum NCIMB 12834T. Strain CL-GY44T was not able to grow in the presence of NaCl but grew with 0–5.5 % sea salts. The optimum temperature and pH for growth were 30 °C and pH 7.0. The major cellular fatty acids of strain CL-GY44T were C17 : 1ω6c, iso-C16 : 0, C16 : 0 and iso-C15 : 0 and the major menaquinone was MK-8(H4). The cell-wall analysis showed that strain CL-GY44T contained ll-diaminopimelic acid. The genomic DNA G+C content was 71.6 mol%. The combined phenotypic, chemotaxonomic and phylogenetic data showed that strain CL-GY44T could be clearly distinguished from members of the genus Nocardioides . Thus, strain CL-GY44T should be classified as representing a novel species in the genus Nocardioides , for which the name Nocardioides marinquilinus sp. nov. is proposed. The type strain is CL-GY44T ( = KCCM 90109T = JCM 18459T).

scholarly journals Microbispora bryophytorum sp. nov., an actinomycete isolated from moss (Bryophyta)

2015 ◽  
Vol 65 (Pt_4) ◽  
pp. 1274-1279 ◽  
Author(s):  
Chuang Li ◽  
Yuejing Zhang ◽  
Chongxi Liu ◽  
Haiyan Wang ◽  
Junwei Zhao ◽  
...  
Keyword(s):  
Type Species ◽  
Gene Sequence ◽  
Novel Species ◽  
Morphological Characteristics ◽  
Rrna Gene ◽  
The Novel ◽  
Content Type ◽  
Link Type ◽  
The 16S Rrna Gene ◽  
Sequence Similarities

A novel endophytic actinomycete, designated strain NEAU-TX2-2T, was isolated from moss and characterized using a polyphasic approach. The isolate was found to have morphological characteristics typical of the genus Microbispora . The isolate formed longitudinally paired spores on the tips of short sporophores that branched from aerial hyphae. Analysis of the 16S rRNA gene sequence supported the assignment of the novel strain to the genus Microbispora , and strain NEAU-TX2-2T exhibited 99.08 and 98.62 % gene sequence similarities to Microbispora amethystogenes JCM 3021T and Microbispora rosea subsp. rosea JCM 3006T, respectively. However two tree-making algorithms supported the position that strain NEAU-TX2-2T formed a distinct clade with M. rosea subsp. rosea JCM 3006T. A low level of DNA–DNA relatedness allowed the isolate to be differentiated from M. amethystogenes JCM 3021T and M. rosea subsp. rosea JCM 3006T. Moreover, strain NEAU-TX2-2T could also be distinguished from its closest phylogenetic relatives by morphological and physiological characteristics. Therefore, it is proposed that strain NEAU-TX2-2T represents a novel species of the genus Microbispora for which the name Microbispora bryophytorum sp. nov. is proposed. The type strain is NEAU-TX2-2T ( = CGMCC 4.7138T = DSM 46710T).

scholarly journals Rhizocola hellebori gen. nov., sp. nov., an actinomycete of the family Micromonosporaceae containing 3,4-dihydroxydiaminopimelic acid in the cell-wall peptidoglycan

2014 ◽  
Vol 64 (Pt_8) ◽  
pp. 2706-2711 ◽  
Author(s):  
Atsuko Matsumoto ◽  
Yoko Kawaguchi ◽  
Takuji Nakashima ◽  
Masato Iwatsuki ◽  
Satoshi Ōmura ◽  
...  
Keyword(s):  
Cell Wall ◽  
Type Species ◽  
Gene Sequence ◽  
Rrna Gene ◽  
Rrna Gene Sequence ◽  
Content Type ◽  
Link Type ◽  
Cell Wall Peptidoglycan ◽  
The Family ◽  
The 16S Rrna Gene

An actinomycete strain, K12-0602T, was isolated from the root of a Helleborus orientalis plant in Japan. The 16S rRNA gene sequence of strain K12-0602T showed that it had a close relationship with members of the family Micromonosporaceae and the 16S rRNA gene sequence similarity values between strain K12-0602T and type strains of type species of 27 genera belonging to the family Micromonosporaceae were below 96.2 %. MK-9 (H4) and MK-9 (H6) were detected as major menaquinones, and galactose, xylose, mannose and ribose were present in the whole-cell hydrolysate. The acyl type of the peptidoglycan was glycolyl. Major fatty acids were iso-C15 : 0, iso-C16 : 0, C17 : 1ω9c and anteiso-C17 : 0. Phosphatidylethanolamine was detected as the phospholipid corresponding to phospholipid type II. The G+C content of the genomic DNA was 67 mol%. Analyses of the cell-wall peptidoglycan by TLC and LC/MS showed that it was composed of alanine, glycine, hydroxylglutamic acid and an unknown amino acid, which was subsequently determined to be 3,4-dihydroxydiaminopimelic acid using instrumental analyses, including NMR and mass spectrometry. On the basis of the phylogenetic analysis and chemotaxonomic characteristics, strain K12-0602T represents a novel species of a new genus in the family Micromonosporaceae , for which the name Rhizocola hellebori gen. nov., sp. nov. is proposed. The type strain of the type species is K12-0602T ( = NBRC 109834T = DSM 45988T). This is the first report, to our knowledge, of 3,4-dihydroxydiaminopimelic acid being found as a diamino acid in bacterial cell-wall peptidoglycan.

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