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Neobacillus rhizosphaerae sp. nov., isolated from the rhizosphere, and reclassification of Bacillus dielmonensis as Neobacillus dielmonensis comb. nov. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
A Gram-stain-positive, facultative anaerobic endospore-forming bacterium, which originated from roots/rhizosphere of maize (Zea mays), was investigated for its taxonomic position. On the basis of 16S rRNA gene sequence similarities, strain JJ-3T was grouped together with
Neobacillus
species showing the highest similarities to
Neobacillus bataviensis
(98.8 %) and the three species Neobacillus dendrensis,
Neobacillus soli
and
Neobacillus cucumis
(all 98.6 %). The 16S rRNA gene sequence similarities to the sequences of the type strains of other
Neobacillus
species were lower than 98.5 %. The average nucleotide identity, average amino acid identity and digital DNA–DNA hybridization values between the JJ-3T genome assembly and those of the other
Neobacillus
type strains were <83, <85 and <27 %, respectively. Chemotaxonomic features supported the grouping of the strain to the genus Neobacillus, e.g. the major fatty acids were C15 : 0 anteiso and C15 : 0 iso, the polar lipid profile contained the major components diphosphatidylglycerol, phosphatidylglycerol and phosphatidylethanolamine, and the major quinone was menaquinone MK-7. Physiological and biochemical test results were slightly different from those of the most closely related species. For this reason, JJ-3T represents a novel species of the genus
Neobacillus
, for which we propose the name Neobacillus rhizosphaerae sp. nov., with JJ-3T (= CIP 111895T=LMG 32087T=DSM 111784T=CCM 9084T) as the type strain. We also propose to reclassify
Bacillus dielmonensis
as Neobacillus dielmonensis comb. nov. based mainly on the results of phylogenomic and conserved signature indel analyses.
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Zhang G, Yang R, Chen T, Zhang B, Yang H, Wu X, Gao H, Zhang W, Liu G. Mesobacillus harenae sp. nov., isolated from the sandy soil of a cold desert. Int J Syst Evol Microbiol 2020; 71. [PMID: 33270002 DOI: 10.1099/ijsem.0.004594] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A bacterial strain, designated Y40T, was isolated from sandy soil sampled on the Qinghai-Tibet Plateau. A polyphasic study confirmed the affiliation of the strain with the genus Mesobacillus. Strain Y40T was found to be an aerobic, Gram-stain-positive, motile and rod-shaped bacterium. The strain grew at 10-42 °C, pH 6-9 and with 0-2 % (w/v) NaCl. The diagnostic amino acid was meso-diaminopimeilic acid. MK7 was predominant menaquinone, and iso-C15:0, iso-C17:1 ω10c and anteiso-C15:0 were the major fatty acids. The polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and an unidentified lipid. The DNA G+C content was 40.6 mol%. Based on he results of 16S rRNA gene sequence analysis, strain Y40T was phylogenetically closely related to Mesobacillus zeae JJ-247T and Mesobacillus foraminis CV53T, with similarities of 98.0 and 97.7 %, respectively. The average nucleotide identity (ANIb) values between strain Y40T and Mesobacillus zeae JJ-247T and Mesobacillus foraminis CV53T were 69.9 and 70.0 %, respectively. Based on the morphological, physiological, and chemotaxonomic data, it is proposed that strain Y40T (=CICC 24459T=JCM 32794T) should be classified into the genus Mesobacillus as Mesobacillus harenae sp. nov.
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Affiliation(s)
- Gaosen Zhang
- Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, PR China.,Key Laboratory of Microbial Resources Exploition and Application, Gansu Province, Lanzhou 730000, PR China.,Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Gansu Province, Lanzhou 730000, PR China
| | - Ruiqi Yang
- School of Geography and Environmental Engineering, Lanzhou City University, Lanzhou 730070, PR China.,Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Gansu Province, Lanzhou 730000, PR China
| | - Tuo Chen
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Gansu Province, Lanzhou 730000, PR China.,State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Binglin Zhang
- State Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, PR China.,Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Gansu Province, Lanzhou 730000, PR China
| | - Hui Yang
- Key Laboratory of Microbial Resources Exploition and Application, Gansu Province, Lanzhou 730000, PR China
| | - Xiukun Wu
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Gansu Province, Lanzhou 730000, PR China.,Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Haining Gao
- Key Laboratory of Hexi Corridor Resources Utilization of Gansu, Zhangye 734000, PR China
| | - Wei Zhang
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Gansu Province, Lanzhou 730000, PR China.,Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | - Guangxiu Liu
- Key Laboratory of Extreme Environmental Microbial Resources and Engineering, Gansu Province, Lanzhou 730000, PR China.,Key Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, PR China
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Shin B, Park C, Lee BH, Lee KE, Park W. Bacillus miscanthi sp. nov., a alkaliphilic bacterium from the rhizosphere of Miscanthus sacchariflorus. Int J Syst Evol Microbiol 2020; 70:1843-1849. [PMID: 31951191 DOI: 10.1099/ijsem.0.003982] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
A novel bacterial strain, designated AK13T (=KACC 21401T=DSM 109981T), was isolated from the rhizosphere of Miscanthus sacchariflorus. Strain AK13T was found to be an aerobic, Gram-stain-positive, endospore-forming and rod-shaped bacterium. It formed yellow circular colonies with smooth convex surfaces. The genomic DNA G+C content of strain AK13T was estimated to be 40 mol%. Phylogenetic analysis based on 16S rRNA gene sequence similarity showed that this strain was most closely related to Bacillus lehensis MLB2T (99.4 %), Bacillus oshimensis K11T (98.8 %) and Bacillus patagoniensis PAT 05T (96.6 %). The average nucleotide identity values between strain AK13T and B. lehensis MLB2T, B. oshimensis K11T and B. patagoniensis PAT 05T were 90.93, 91.05 and 71.87 %, respectively, with the digital DNA-DNA hybridization values of 42.7, 42.6 and 18.8 %, respectively. Cells grew at 5-40 °C (optimum, 28-35 °C), pH 6.5-13 (optimum, pH 8-9) and in the presence of 0-13.0 % (w/v) NaCl (optimum, 1 %). The cell wall of strain AK13T contained meso-diaminopimelic acid, and the major isoprenoid quinone was MK-7. Results of fatty acid methyl ester analysis revealed that iso-C15 : 0 was the predominant cellular fatty acid. Two-dimensional thin-layer chromatography analysis indicated that the major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine and glycolipid. The genotypic and phenotypic characteristics suggested that strain AK13T represented a novel species of the genus Bacillus, and thus the name Bacillus miscanthi sp. nov. is proposed.
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Affiliation(s)
- Bora Shin
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Chulwoo Park
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Byoung-Hee Lee
- National Institute of Biological Resources, Incheon, 22689, Republic of Korea
| | - Ki-Eun Lee
- National Institute of Biological Resources, Incheon, 22689, Republic of Korea
| | - Woojun Park
- Laboratory of Molecular Environmental Microbiology, Department of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
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Bacillus spongiae sp. nov., isolated from sponge of Jeju Island. J Microbiol 2018; 56:217-222. [PMID: 29492866 DOI: 10.1007/s12275-018-7511-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 01/17/2018] [Accepted: 01/17/2018] [Indexed: 10/17/2022]
Abstract
A Gram-reaction-positive, strictly aerobic, motile, endospore- forming, and rod-shaped bacterial strain designated 135PIL107-10T was isolated from a sponge on Jeju Island, and its taxonomic position was investigated using a polyphasic approach. Strain 135PIL107-10T grew at 20-37°C (optimum temperature, 25°C) and pH 6.0-10.0 (optimum pH, 6.0) on marine and R2A agars. Based on 16S rRNA gene phylogeny analysis, the novel strain formed a new branch within the genus Bacillus of the family Bacillaceae, and formed clusters with Bacillus thaohiensis NHI-38T (96.8%), Bacillus fengqiuensis NPK15T (96.7%), and Bacillus songklensis CAU 1033T (96.7%). Lower sequence similarities (97.0%) were found with the type strains of all other recognized members of the genus Bacillus (95.6-96.8% similarity). The G + C content of the genomic DNA was 43.6 mol%. The predominant respiratory quinone was menaquinone-7 and the major fatty acids were iso-C15:0 and iso-C17:1ω10c. The overall polar lipid patterns were diphosphatidylglycerol, phosphatidylglycerol, and phosphatidylethanolamine. The diagnostic diamino acid in the cell-wall peptidoglycan was meso-diaminopimelic acid. The isolate therefore represents a novel species, for which the name Bacillus spongiae sp. nov. is proposed, with the type strain 135PIL107-10T (= KACC 19275T = LMG 30080T).
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Guo LY, Ling SK, Li CM, Chen GJ, Du ZJ. Bacillus marinisedimentorum sp. nov., isolated from marine sediment. Int J Syst Evol Microbiol 2017; 68:198-203. [PMID: 29134941 DOI: 10.1099/ijsem.0.002482] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-positive, motile and facultatively anaerobic strain, designated NC2-31T, was isolated from sediment from the coast of Weihai, PR China. Optimal growth occurred at 37 °C, pH 7.5 and with 2.0-3.0 % (w/v) NaCl. MK-7 was the major respiratory quinone. Meso-diaminopimelic acid was a diagnostic diamino acid in the peptidoglycan. The major polar lipids of NC2-31T were diphosphatidylglycerol (DPG), phosphatidylglycerol (PG) and phosphatidylethanolamine (PE). The genomic DNA G+C content of the strain was 46.3 mol%. The predominant cellular fatty acids (>10.0 %) of NC2-31T were iso-C15 : 0 (18.9 %), anteiso-C15 : 0 (15.8 %), summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) (15.3 %) and iso-C16 : 0 (10.3 %). Phylogenetic analysis based on 16S rRNA gene sequences revealed that NC2-31T should be classified as representing a member of the genus Bacillus. Based on data from the current polyphasic study, NC2-31T represents a novel species within the genus Bacillus, for which the name Bacillusmarinisedimentorum sp. nov. is proposed with type strain NC2-31T (=KCTC 33721T=MCCC 1K01239T).
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Affiliation(s)
- Ling-Yun Guo
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China.,College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Si-Kai Ling
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China.,College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Chang-Ming Li
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China.,College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Guan-Jun Chen
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China.,College of Marine Science, Shandong University, Weihai 264209, PR China
| | - Zong-Jun Du
- State key Laboratory of Microbial Technology, Shandong University, Jinan 250100, PR China.,College of Marine Science, Shandong University, Weihai 264209, PR China
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