scholarly journals Streptomyces sasae sp. nov., isolated from bamboo (Sasa borealis) rhizosphere soil

2015 ◽  
Vol 65 (Pt_10) ◽  
pp. 3547-3551 ◽  
Author(s):  
Hyo-Jin Lee ◽  
Kyung-Sook Whang

A novel strain of Gram-staining-positive actinobacterium, designated strain JR-39T, was isolated from the rhizosphere soil of bamboo (Sasa borealis) sampled in Damyang, Korea, and its taxonomic position was investigated by a polyphasic approach. The isolate formed flexuous chains of spores that were cylindrical and smooth-surfaced. Strain JR-39T grew at 4–37 °C (optimum 28 °C). The pH range for growth was pH 5–10 (optimum pH 6–8) and the NaCl range for growth was 0–5 % (w/v) with optimum growth at 1 % NaCl. The cell-wall peptidoglycan contained ll-diaminopimelic acid, glutamic acid, alanine and glycine. Whole-cell hydrolysates mainly contained glucose, mannose, ribose and rhamnose. Predominant menaquinones were MK-9 (H6), MK-9 (H8) and MK-9 (H4). The major cellular fatty acids were anteiso-C15 : 0, iso-C16 : 0, iso-C15 : 0 and iso-C14 : 0. The G+C content of the DNA was 72.3 ± 0.34 mol%. Phylogenetic analyses based on 16S rRNA gene sequence analysis indicated that strain JR-39T belonged to the genus Streptomyces, showing the highest sequence similarity to Streptomyces panaciradicis 1MR-8T (99.4 %), Streptomyces capoamus JCM 4734T (98.8 %), Streptomyces galbus DSM 40089T (98.7 %), Streptomyces longwoodensis LMG 20096T (98.7 %), Streptomyces bungoensis NBRC 15711T (98.7 %) and Streptomyces rhizophilus JR-41T (98.7 %). However, DNA–DNA hybridization assays, as well as physiological and biochemical analyses, showed that strain JR-39T could be differentiated from its closest phylogenetic relatives. On the basis of the phenotypic and genotypic characteristics, strain JR-39T represents a novel species for which the name Streptomyces sasae sp. nov. is proposed. The type strain is JR-39T ( = KACC 17182T = NBRC 109809T).

2012 ◽  
Vol 62 (Pt_3) ◽  
pp. 591-595 ◽  
Author(s):  
Sang-Hee Lee ◽  
Qing-Mei Liu ◽  
Sung-Taik Lee ◽  
Sun-Chang Kim ◽  
Wan-Taek Im

A Gram-reaction-positive, rod-shaped, non-motile, non-spore-forming bacterium (strain BX5-10T) was isolated from the soil of a ginseng field on Baekdu Mountain in Jilin district, China. The taxonomic position of this bacterium was determined in an investigation based on a polyphasic approach. On the basis of 16S rRNA gene sequence analysis, strain BX5-10T was shown to belong to the family Nocardioidaceae and to be most closely related to Nocardioides plantarum NCIMB 12834T (96.5 % sequence similarity), Nocardioides dokdonensis KCTC 19309T (96.2 %) and Nocardioides fonticola NAA-13T (95.1 %). Strain BX5-10T was characterized chemotaxonomically as having ll-2,6-diaminopimelic acid in its cell-wall peptidoglycan, MK-8(H4) as the predominant menaquinone and C18 : 1ω9c, C16 : 0 and C17 : 1ω8c as its major fatty acids. The G+C content of the genomic DNA was 70.3 mol%. The novel strain could be differentiated genotypically and phenotypically from all recognized species of the genus Nocardioides. Based on the results of the phylogenetic analyses and the genotypic and phenotypic data, a novel species, Nocardioides ginsengagri sp. nov., is proposed. The type strain is BX5-10T ( = KCTC 19467T = DSM 21362T).


2015 ◽  
Vol 65 (Pt_7) ◽  
pp. 2030-2035 ◽  
Author(s):  
Bo Liu ◽  
Guo-Hong Liu ◽  
Cetin Sengonca ◽  
Peter Schumann ◽  
Jian-Mei Che ◽  
...  

A Gram-staining-positive, rod-shaped, endospore-forming, aerobic bacterium (FJAT-17212T) was isolated from the rhizosphere soil of a medical plant, Prunella vulgaris (common selfheal), on the Wuyishan mountain of China. Isolate FJAT-17212T grew at 10–50 °C (optimum 30 °C), pH 5–11 (optimum pH 7) and with 0–6  % (w/v) NaCl (optimum 2  %). Phylogenetic analyses based on 16S rRNA gene sequences showed that isolate FJAT-17212T was a member of the genus Bacillus and was most closely related to Bacillus galactosidilyticus DSM 15595T (97.3  %). DNA–DNA relatedness between isolate FJAT-17212T and B. galactosidilyticus DSM 15595T was low (35.2  % ± 2.3). The diagnostic diamino acid of the peptidoglycan of isolate FJAT-17212T was meso-diaminopimelic acid and the predominant isoprenoid quinone was MK-7 (80.8  %). The major cellular fatty acids were iso-C15 : 0 (35.7  %), anteiso-C15 : 0 (29.8  %), iso-C14 : 0 (9.9  %) and iso-C16 : 0 (9.9  %) and the DNA G+C content was 39.8  mol%. Phenotypic, chemotaxonomic and genotypic properties clearly indicated that isolate FJAT-17212T represents a novel species within the genus Bacillus, for which the name Bacillus wuyishanensis sp. nov. is proposed. The type strain is FJAT-17212T ( = DSM 27848T = CGMCC 1.12709T).


2015 ◽  
Vol 65 (Pt_7) ◽  
pp. 2118-2123 ◽  
Author(s):  
Yan-Yan Duan ◽  
Hong Ming ◽  
Lei Dong ◽  
Yi-Rui Yin ◽  
Xiao-Lin Meng ◽  
...  

A Gram-staining negative, rod-shaped bacterium, designated strain YIM 78110T, was isolated from a sediment sample collected from Hehua hot spring in Tengchong, Yunnan province, south-west China. The taxonomic status of strain YIM 78110T was confirmed by a polyphasic approach. 16S rRNA gene sequence analysis indicated that strain YIM 78110T belongs to the genus Cecembia, displaying 96.8 % and 94.7 % sequence similarity with the two most closely related type strains, Cecembia calidifontis RQ-33T and Cecembia lonarensis LW9T, respectively. The low value of DNA–DNA hybridization (52.3 ± 2.3 %) between strain YIM 78110T and its closest neighbour, Cecembia calidifontis RQ-33T, indicated that this new isolate represented a different genomic species in the genus Cecembia. The temperature for growth ranged from 30 to 50 °C. The pH for growth ranged from pH 4.0 to 10.0, with NaCl tolerance of 0.5–6.0 % (w/v). The predominant menaquinone of strain YIM 78110T was MK-7 and the major polar lipid was phosphatidylethanolamine. The major fatty acids were iso-C15:0 and C15:0. The DNA G+C content was 47.1 mol%. On the basis of physiological, biochemical and phylogenetic analyses, it is proposed that strain YIM 78110T represents a novel species of the genus Cecembia, for which the name Cecembia rubra sp. nov. is proposed. The type strain is YIM 78110T ( = CCTCC AB2013287T = DSM 28057T).


2014 ◽  
Vol 64 (Pt_2) ◽  
pp. 431-437 ◽  
Author(s):  
Kyung-Sook Whang ◽  
Jae-Chan Lee ◽  
Hae-Ran Lee ◽  
Song-Ih Han ◽  
Sang-Ho Chung

An exopolysaccharide-producing bacterium, designated strain DRP 35T, was isolated from the rhizosphere soil of a medicinal herb, Angelica sinensis, at Geumsan in Korea. Cells were Gram-staining-negative, non-motile, catalase-positive and oxidase-negative short rods. The isolate grew aerobically from 15 to 45 °C (optimum 30 °C), pH 3.5–7.0 (optimum pH 5.0) and in the presence of 0–1.0 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences indicated that strain DRP 35T belongs to the genus Terriglobus in the phylum Acidobacteria with a sequence similarity of 97.2 % and 97.0 % to Terriglobus saanensis SP1PR4T and Terriglobus roseus KBS63T, respectively. The genomic DNA G+C content was 62.1 mol%. DNA–DNA relatedness between strain DRP 35T and the type strains of the other species of the genus Terriglobus , T. saanensis SP1PR4T and T. roseus KBS63T, were 24.6 and 17.2 %, respectively. The predominant menaquinone was MK-8. Major fatty acids were iso-C15 : 0, C16 : 1ω7c and C16 : 0. The polar lipids were phosphatidylethanolamine, unidentified aminophospholipid and unknown phospholipids. On the basis of polyphasic analysis from this study, strain DRP 35T represents a novel species of the genus Terriglobus for which the name Terriglobus tenax sp. nov. is proposed. The type strain is DRP 35T ( = KACC 16474T = NBRC 109677T).


2020 ◽  
Author(s):  
Yuanqiang Zou ◽  
Wenbin Xue ◽  
Xiaoqian Lin ◽  
Guangwen Luo ◽  
Mei Lv ◽  
...  

AbstractA Gram-staining-negative, non-spore-forming, short, straight rod, non-motile, obligate anaerobic bacterial strain, AF73-05CM02T, was isolated from faecal sample of thirty-years old healthy male. Colonies were approximately 0.2mm in diameter, beige and circular after 4 days of incubation on PYG agar under anaerobic conditions at 37°C. Strain AF73-05CM02T grew in a temperature range between 30-42°C and pH range from 6.0 to 8.5, with optimum growth at 37-42°C and pH 7.0. Base on the 16S rRNA gene sequence analysis, strain AF73-05CM02T belongs to the genus Christensenella and showed the highest level of sequence similarity with Christensenella minuta YIT 12065T. The predominant fatty acids of strain AF73-05CM02T were C10:0 (7.5%), iso-C11:0 (5.6%), C12:0 (7.2%), C14:0 (46.6%), iso-C15:0 (7.4%), C16:0 (9.7%) and C18:1 ω 9 c (6.9%). Acetic acid, formic acid, butyric acid and lactic acid were end products of glucose fermentation. The isolate was negative for catalase, indole production and hydrolysis of gelatin. Genomic relatedness analyses based on average nucleotide identity indicated strain AF73-05CM02T significantly differed from other species of the genus Christensenella, showing ANI values under 82.89% with the phylogenetically closest species. The G+C content of the genomic DNA was 52.07 mol% from genome sequence, which differs from that of Christensenella minuta. Several physiological biochemical and genotypic properties differentiated the novel bacterial strain from the related species, indicating that the isolate represent a new species of the genus Christensenella for which the name Christensenella intestinihominis sp. nov. is proposed, with strain AF73-05CM02T (=CGMCC 1.5207T =DSM 103477T) being the type strain. The follow study approached the function of cholesterol-lowering for strains AF73-05CM02T and DSM 22067T revealed the two strains exhibit capacity for removing cholesterol with efficiency of 36.6% and 54.3%. Exopolysaccharide production of two strains were 234 and 271 mg/L, respectively.


2014 ◽  
Vol 64 (Pt_12) ◽  
pp. 4109-4114 ◽  
Author(s):  
Jun-Muk Lim ◽  
Soo-Jin Kim ◽  
Moriyuki Hamada ◽  
Jae-Hyung Ahn ◽  
Hang-Yeon Weon ◽  
...  

Strain KIS2-16T was isolated from a soil sample collected from Daecheong Island of Incheon region, South Korea. KIS2-16T was Gram-staining-positive, aerobic, non-spore-forming, non-motile, catalase-positive, oxidase-negative and mesophilic. On the basis of 16S rRNA gene sequence analysis, strain KIS2-16T represented a member of the genus Nocardioides , being most closely related to the type strains of species of the genus Nocardioides , Nocardioides maradonensis RP-B30T (97.8 % sequence similarity) and Nocardioides ultimimeridianus RP-B26T (97.0 %). The fatty acid profile of KIS2-16T was dominated by C18 : 1ω9c, C17 : 1ω8c, C16 : 0, C18 : 0 10-methyl (TBSA), C16 : 0 2-OH and C17 : 0 2-OH. The major isoprenoid quinone was MK-8(H4), and the major polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phosphatidylinositol. The peptidoglycan structure was A3γ-type with ll-diaminopimelic acid. The genomic DNA G+C content of KIS2-16T was 64.9 mol%. Strain KIS2-16T showed DNA–DNA hybridization values of less than 70 % with the closely related species of the genus Nocardioides . Based on phenotypic, genotypic and phylogenetic data, the isolate represents a novel species of the genus Nocardioides , for which the name Nocardioides daecheongensis sp. nov. (type strain KIS2-16T = DSM 27136T = KACC 17297T = NBRC 109597T) is proposed.


2015 ◽  
Vol 65 (Pt_8) ◽  
pp. 2391-2396 ◽  
Author(s):  
T.N.R. Srinivas ◽  
P. Anil Kumar ◽  
M. Tank ◽  
B. Sunil ◽  
Manasa Poorna ◽  
...  

A novel Gram-stain-positive, coccoid, non-motile bacterium, designated strain AMV4T, was isolated from a soil sample collected from a mud volcano located in the Andaman Islands, India. The colony was pale orange. Strain AMV4T was positive for oxidase, aesculinase, lysine decarboxylase and ornithine decarboxylase activities and negative for amylase, catalase, cellulase, protease, urease and lipase activities. 16S rRNA gene sequence analysis indicated that strain AMV4T was a member of the order Actinomycetales and was closely related to Aquipuribacter hungaricus with a sequence similarity of 97.13 % (pairwise alignment). Phylogenetic analyses showed that strain AMV4T clustered with Aquipuribacter hungaricus and was distantly related to the other genera of the family Intrasporangiaceae. DNA–DNA hybridization between strains AMV4T and Aquipuribacter hungaricus IV-75T showed a relatedness of 28 %. The predominant cellular fatty acids were iso-C15 : 0 (6.9 %), anteiso-C15 : 0 (25.3 %), C16 : 0 (12.9 %), anteiso-C16 : 0 (5.6 %), C18 : 1ω9c (19.8 %) and C18 : 3ω6,9,12c (9.1 %). The diagnostic diamino acid in the cell-wall peptidoglycan of strain AMV4T was meso-diaminopimelic acid. Strain AMV4T contained MK-10(H4) as the predominant respiratory quinone. The polar lipids consisted of phosphatidylglycerol, one unidentified glycolipid, two unidentified phospholipids and five unidentified lipids. The DNA G+C content of strain AMV4T was 74.3 mol%. Based on data from this taxonomic study using a polyphasic approach, it is proposed that strain AMV4T represents a novel species of the genus Aquipuribacter, with the suggested name Aquipuribacter nitratireducens sp. nov. The type strain is AMV4T ( = CCUG 58430T = DSM 22863T = NBRC 107137T).


2007 ◽  
Vol 57 (12) ◽  
pp. 2861-2864 ◽  
Author(s):  
Hang-Yeon Weon ◽  
Byung-Yong Kim ◽  
Peter Schumann ◽  
Reiner M. Kroppenstedt ◽  
Hyung-Jun Noh ◽  
...  

An aerobic, Gram-positive, non-motile, non-spore-forming, rod–coccus-shaped bacterium, strain 5317S-21T, was isolated from an air sample from Suwon city, Republic of Korea. The isolate was able to grow within a pH range of 5.0–9.0 and a temperature range of 5–35 °C and it tolerated up to 2 % (w/v) NaCl. The cell-wall peptidoglycan contained meso-diaminopimelic acid as diagnostic diamino acid. The predominant isoprenoid quinone was MK-8(H4). The major polar lipids were phosphatidylinositol, phosphatidylethanolamine and diphosphatidylglycerol; phosphatidylglycerol and several unknown phospholipids were also detected. Mycolic acids were absent. The only whole-cell sugar was glucose. The major cellular fatty acids were iso-C16 : 0, C17 : 1 ω8c and iso-C15 : 0. 16S rRNA gene sequence analysis indicated that strain 5317S-21T was related phylogenetically to members of the genus Knoellia, with 97.4 % sequence similarity to the type strains of Knoellia sinensis and Knoellia subterranea. The G+C content of the genomic DNA of strain 5317S-21T was 73 mol%. Levels of DNA–DNA relatedness between strain 5317S-21T and the type strains of Knoellia sinensis and Knoellia subterranea were 37 and 41 %, respectively. It was concluded that strain 5317S-21T represents a novel species of the genus Knoellia, for which the name Knoellia aerolata sp. nov. is proposed. The type strain is 5317S-21T (=KACC 20583T =DSM 18566T).


2014 ◽  
Vol 64 (Pt_8) ◽  
pp. 2828-2833 ◽  
Author(s):  
Chanwit Suriyachadkun ◽  
Wipaporn Ngaemthao ◽  
Suwanee Chunhametha ◽  
Chitti Thawai ◽  
Jean-Jacques Sanglier ◽  
...  

An actinomycetes strain A-T 1946T that developed spherical sporangia containing non-motile spores on aerial mycelia was isolated from dry deciduous forest soil in Thailand. 16S rRNA gene sequence analysis indicated that strain A-T 1946T belongs to the genus Sinosporangium , being closely related to Sinosporangium album 6014T (98.8 % sequence similarity). The DNA–DNA relatedness values were 43.7–50.9 %, which were significantly below 70 % and differentiated strain A-T 1946T from the closest species. The cell-wall peptidoglycan contained meso-diaminopimelic acid. The whole-cell sugars contained rhamnose, ribose, madurose and glucose. The predominant menaquinone was MK-9(H2). The diagnostic phospholipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylmethylethanolamine, lysophosphatidylethanolamine, phosphatidylglycerol, phosphatidylinositol, phosphatidylinositol-mannoside, N-acetylglucosamine-containing phospholipids, two unknown phosphoglycolipids and two unknown phospholipids. The predominant cellular fatty acids were unsaturated C16 : 1 and C17 : 1, and saturated C16 : 0 and 10-methyl-C17 : 0. Following an evaluation of phenotypic, chemotaxonomic and genotypic characteristics, the isolate is proposed to represent a novel species of genus Sinosporangium to be named Sinosporangium siamense sp. nov. The type strain is A-T 1946T ( = BCC 29081T = NBRC 109515T). An emended description of the genus Sinosporangium is also provided.


Author(s):  
Xian-Jiao Zhang ◽  
Guang-Da Feng ◽  
Fan Yang ◽  
Honghui Zhu ◽  
Qing Yao

A Gram-stain-negative, aerobic and rod-shaped bacterium, designated as strain B61T, was isolated from rhizosphere soil of banana collected from Dongguan, Guangdong Province, PR China. Growth occurred at 15–40 °C, within a pH range of pH 6.0–9.0. Results of 16S rRNA gene sequence similarity and phylogenetic analyses showed that strain B61T was most closely related to ‘Chitinophaga agri’ KACC 21303 (98.9 %) and Chitinophaga pinensis DSM 2588T (98.8 %). The genome size was 7.6 Mb with a G+C content of 45.2 mol%. The genome-inferred average nucleotide identity values between strain B61T and two closely related strains were 79.2 and 79.3 %, respectively, with corresponding digital DNA–DNA hybridization values of 22.3 and 22.6 %. The major fatty acids of the novel strain were iso-C15:0, C16:1 ω5c and iso-C17:0 3-OH and the sole respiratory quinone was menaquinone 7 (MK-7). The polar lipids consisted of phosphatidylethanolamine, five unidentified aminolipids, four unidentified glycolipids and six unidentified lipids. The phenotypic and phylogenetic results clearly supported that strain B61T represents a novel species of the genus Chitinophaga , for which the name Chitinophaga rhizophila, sp. nov. is proposed, with the type strain B61T (=GDMCC 1.2608T=KCTC 82856T).


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