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Zhao ZL, Ming H, Ji WL, Khieu TN, Chu-Ky S, Cheng LJ, Meng XL, Li WJ, Nie GX. Paenibacillus esterisolvens sp. nov., isolated from soil. Int J Syst Evol Microbiol 2018; 68:2145-2150. [PMID: 29701575 DOI: 10.1099/ijsem.0.002754] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-positive, aerobic, motile with peritrichous flagella, rod-shaped bacterium, designated CFH S0170T, was isolated from a soil sample collected from Catba island in Ha Long Bay, Hai Phong City, Vietnam. Comparison of the 16S rRNA gene sequences showed that strain CFH S0170T belonged to the genus Paenibacillus and showed closest relationship with Paenibacillus vulneris CCUG 53270T (98.1 % similarity). Phylogenetic analysis demonstrated that the novel candidate formed a coherent branch with P. vulneris CCUG 53270T and Paenibacillus yunnanensis YN2T. Furthermore, the novel strain shared 87.2 % rpoB gene sequence similarity with P. vulneris CCUG 53270T. Growth of strain CFH S0170T occurred at 10-40 °C, pH 6.0-8.0 and with 0-2.0 % (w/v) NaCl. Strain CFH S0170T contained mannose, glucose and rhamnose as the major whole-cell sugars. The cell-wall peptidoglycan contained meso-diaminopimelic acid, glutamic acid, lysine and aspartic acid. The polar lipid profile contained diphosphatidylglycerol, phosphatidylethanolamine, glycolipids and phospholipids. The dominant cellular fatty acids included anteiso-C15 : 0 and C15 : 0. The genomic DNA G+C content was 50.9 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic analysis, strain CFH S0170T is affiliated to the genus Paenibacillus, but could be distinguished from other valid species of this genus. It is concluded that strain CFH S0170T should be considered to represent a novel species of the genus Paenibacillus, for which the name Paenibacillus esterisolvens sp. nov. is proposed. The type strain is CFH S0170T (=KCTC 33624T=BCRC 80802T).
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Affiliation(s)
- Zhuo-Li Zhao
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Hong Ming
- College of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, PR China
| | - Wei-Li Ji
- College of Life Sciences and Technology, Xinxiang Medical University, Xinxiang 453003, PR China
| | - Thi-Nhan Khieu
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China.,Department of Food Technology, School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Son Chu-Ky
- Department of Food Technology, School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Li-Jiao Cheng
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Xiao-Lin Meng
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
| | - Wen-Jun Li
- State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Guo-Xing Nie
- College of Fisheries, Henan Normal University, Xinxiang 453007, PR China
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Huang JR, Ming H, Li S, Meng XL, Zhang JX, Khieu TN, Tang Z, Li WJ, Nie GX. Agromyces insulae sp. nov., an actinobacterium isolated from a soil sample. Int J Syst Evol Microbiol 2016; 66:2002-2007. [PMID: 26883212 DOI: 10.1099/ijsem.0.000978] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-reaction-positive, non-motile, aerobic bacterium, designated CFH S0483T, was isolated from a soil sample collected from Catba island in Halong Bay, Vietnam. 16S rRNA gene sequence analysis showed that the strain is a member of the genus Agromyces and has highest 16S rRNA gene sequence similarities with Agromyces humatus DSM 16389T (97.3 %) and Agromyces ramosus DSM 43045T (97.1 %), and similarities < 97.0 % with type strains of other species of the genus Agromyces. Strain CFH S0483T was able to grow at 10-37 °C, at pH 7.0-9.0 and tolerated NaCl up to 2.0 % (w/v). The whole-cell sugars were mannose, galactose, glucose and ribose. The isolate contained l-2,4-diaminobutyric acid, d-alanine, d-glutamic acid and glycine in the cell-wall peptidoglycan. Strain CFH S0483T exhibited a menaquinone system with MK-12, and the major fatty acids were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The genomic DNA G+C content of strain CFH S0483T was 71.6 mol%. Based on the phylogenetic and phenotypic analysis, and low DNA-DNA hybridization values, strain CFH S0483T could not be classified into any recognized species of the genus Agromyces. Strain CFH S0483T is therefore considered to represent a novel species of the genus Agromyces, for which the name Agromyces insulae sp. nov. is proposed. The type strain is CFH S0483T ( = KCTC 39117T = CCTCC AB 2014301T).
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Affiliation(s)
- Jian-Rong Huang
- College of Fisheries, Henan Normal University,Xinxiang, 453007, PRChina
| | - Hong Ming
- College of Life Sciences and Technology, Xinxiang Medical University,Xinxiang, 453003, PRChina.,Yunnan Institute of Microbiology, Yunnan University,Kunming, 650091, PRChina
| | - Shuai Li
- College of Fisheries, Henan Normal University,Xinxiang, 453007, PRChina
| | - Xiao-Lin Meng
- College of Fisheries, Henan Normal University,Xinxiang, 453007, PRChina
| | - Jian-Xin Zhang
- College of Fisheries, Henan Normal University,Xinxiang, 453007, PRChina
| | - Thi-Nhan Khieu
- Yunnan Institute of Microbiology, Yunnan University,Kunming, 650091, PRChina.,Department of Food Technology, School of Biotechnology and Food Technology, Hanoi University of Science and Technology,Hanoi,Vietnam
| | - Zhong Tang
- College of information and Management, Guangxi Medical University,Nanning, 530021, PRChina
| | - Wen-Jun Li
- Yunnan Institute of Microbiology, Yunnan University,Kunming, 650091, PRChina.,State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-Sen University,Guangzhou, 510275, PRChina
| | - Guo-Xing Nie
- College of Fisheries, Henan Normal University,Xinxiang, 453007, PRChina
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Khieu TN, Liu MJ, Nimaichand S, Quach NT, Chu-Ky S, Phi QT, Vu TT, Nguyen TD, Xiong Z, Prabhu DM, Li WJ. Characterization and evaluation of antimicrobial and cytotoxic effects of Streptomyces sp. HUST012 isolated from medicinal plant Dracaena cochinchinensis Lour. Front Microbiol 2015; 6:574. [PMID: 26106377 PMCID: PMC4458686 DOI: 10.3389/fmicb.2015.00574] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 05/25/2015] [Indexed: 11/13/2022] Open
Abstract
A highly potent secondary metabolite producing endophytic strain, Streptomyces sp. HUST012 was isolated from the stems of the medicinal plant Dracaena cochinchinensis Lour. Strain HUST012 showed antimicrobial and antitumor activities which were significantly much higher than those of dragon's blood extracted from D. cochinchinensis Lour. On further analysis, the strain was found to produce two metabolites, SPE-B11.8 (elucidated to be a novel metabolite (Z)-tridec-7-ene-1,2,13-tricarboxylic acid) and SPE-B5.4 (elucidated as Actinomycin-D). The Minimum Inhibitory Concentration values of SPE-B11.8 against a set of test bacterial organisms (Methicillin-resistant Staphylococcus epidermis ATCC 35984, Methicillin-resistant Staphylococcus aureus ATCC 25923, Escherichia coli ATCC 25922, and Klebsiella pneumoniae ATCC 13883) ranged between 15.63 and 62.5 μg/ml while that for SPE-B5.4 ranged between 0.04 and 2.24 μg/ml. The compound SPE-B11.8 showed cytotoxic effect at 41.63 and 29.54 μg/ml IC 50-values against Hep G2 and MCF-7, respectively, while the compound SPE-B5.4 exhibited stronger activities against them at 0.23 and 0.18 μg/ml IC 50-values.
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Affiliation(s)
- Thi-Nhan Khieu
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University Kunming, China ; Department of Food Technology, School of Biotechnology and Food Technology, Hanoi University of Science and Technology Hanoi, Vietnam
| | - Min-Jiao Liu
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University Kunming, China ; Key Laboratory for Forest Resources Conservation and Use in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University Kunming, China
| | - Salam Nimaichand
- State Key Laboratory of Biocontrol, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes, College of Ecology and Evolution, Sun Yat-Sen University Guangzhou, China
| | - Ngoc-Tung Quach
- Laboratory of Fermentation Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology Hanoi, Vietnam
| | - Son Chu-Ky
- Department of Food Technology, School of Biotechnology and Food Technology, Hanoi University of Science and Technology Hanoi, Vietnam
| | - Quyet-Tien Phi
- Laboratory of Fermentation Technology, Institute of Biotechnology, Vietnam Academy of Science and Technology Hanoi, Vietnam
| | - Thu-Trang Vu
- Department of Food Technology, School of Biotechnology and Food Technology, Hanoi University of Science and Technology Hanoi, Vietnam
| | - Tien-Dat Nguyen
- Department of Bioactive Products, Institute of Marine Biochemistry, Vietnam Academy of Science and Technology Hanoi, Vietnam
| | - Zhi Xiong
- Key Laboratory for Forest Resources Conservation and Use in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University Kunming, China
| | - Deene M Prabhu
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University Kunming, China
| | - Wen-Jun Li
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University Kunming, China ; State Key Laboratory of Biocontrol, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes, College of Ecology and Evolution, Sun Yat-Sen University Guangzhou, China
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Liu MJ, Khieu TN, Gao R, Hozzein WN, Wang HF, Yang W, Nimaichand S, Xiong Z, Duan YQ, Li WJ. Marinactinospora endophytica sp. nov., isolated from a medicinal plant. Antonie Van Leeuwenhoek 2015; 107:1577-82. [PMID: 25903844 DOI: 10.1007/s10482-015-0451-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 04/04/2015] [Indexed: 11/24/2022]
Abstract
A novel endophytic actinobacterium, designated strain YIM 690053(T), was isolated from healthy stems of Salsola ferganica Drob, and was characterized using a polyphasic taxonomic approach. The strain formed well-branched substrate mycelia with no fragmentation, and abundant aerial mycelia that differentiated into long spores. The strain was found to grow at 10-55 °C, pH 6.0-10.0 and in the presence of 0-7 % (w/v) NaCl. The genomic DNA G+C content was determined to be 70.5 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YIM 690053(T) belongs to the genus Marinactinospora, and it shared the highest 16S rRNA gene sequence similarity with Marinactinospora thermotolerans SCSIO 00652(T) (98.96 %). However, the DNA-DNA relatedness values between the two strains was 37.85 ± 2.77 %. Based on the differences in the molecular and biochemical characteristics from its closest relative, strain YIM 690053(T) is concluded to represent a novel species of the genus Marinactinospora, for which the name Marinactinospora endophytica sp. nov. is proposed. The type strain is YIM 690053(T)(=KCTC 29664(T) = DSM 46799(T)).
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Affiliation(s)
- Min-Jiao Liu
- Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, People's Republic of China
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Rajasabapathy R, Mohandass C, Yoon JH, Dastager SG, Liu Q, Khieu TN, Son CK, Li WJ, Colaço A. Vitellibacter nionensis sp. nov., isolated from a shallow water hydrothermal vent. Int J Syst Evol Microbiol 2014; 65:692-697. [PMID: 25428420 DOI: 10.1099/ijs.0.070805-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel, Gram-stain-negative, non-motile, rod-shaped yellow bacterium, designated VBW088(T) was isolated from a shallow water hydrothermal vent in Espalamaca in the Azores. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain VBW088(T) clustered with three type strains of species of the genus Vitellibacter and exhibited a sequence similarity of 97.3 % with Vitellibacter soesokkakensis RSSK-12(T). However, strain VBW088(T) and V. soesokkakensis RSSK-12(T) exhibited low DNA-DNA relatedness (12.7±3.5 %). Strain VBW088(T) was positive for catalase and oxidase. Growth occurred at 10-37 °C, with the optimum at 30 °C, and at pH 6.0-8.0 (optimum pH 6.0) and in up to 5 % (w/v) NaCl with optimum growth at 1-2 % (w/v) NaCl. The major fatty acids (>10 %) were iso-C15 : 0 (33.5 %) and iso-C17 : 0 3-OH (32.0 %). The polar lipids detected in strain VBW088(T) consisted of phosphatidylethanolamine, one unidentified aminolipid and three unidentified phospholipids. The DNA G+C content of strain VBW088(T) was 36.7 mol%. On the basis of phylogenetic inference, DNA-DNA relatedness, chemotaxonomic analysis and physiological data, the isolate represents a novel species of the genus Vitellibacter, for which the name Vitellibacter nionensis sp. nov. is proposed, with the type strain as VBW088(T) ( = KCTC 32420(T) = MCC 2354(T)).
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Affiliation(s)
- Raju Rajasabapathy
- Biological Oceanography Division, CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India
| | - Chellandi Mohandass
- Biological Oceanography Division, CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India
| | - Jung-Hoon Yoon
- Department of Food Science and Biotechnology, Sungkyunkwan University, Jangan-gu, Suwon, Republic of Korea
| | - Syed Gulam Dastager
- NCIM Resource Center, CSIR-National Chemical Laboratory, Dr. Homi Bhabha road, Pune 411 008, India
| | - Qing Liu
- Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China
| | - Thi-Nhan Khieu
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Vietnam.,Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China
| | - Chu Ky Son
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Vietnam
| | - Wen-Jun Li
- Yunnan Institute of Microbiology, Yunnan University, Kunming, Yunnan 650091, PR China
| | - Ana Colaço
- IMAR-Centre of IMAR of the University of the Azores/Department of Oceanography and Fisheries and LARSyS Associated Laboratory, Rua Prof Frederico Machado 9901-862, Horta, Portugal
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Pan HQ, Cheng J, Zhang DF, Yu SY, Khieu TN, Son CK, Jiang Z, Hu JC, Li WJ. Streptomyces bohaiensis sp. nov., a novel actinomycete isolated from Scomberomorus niphonius in the Bohai Sea. J Antibiot (Tokyo) 2014; 68:246-52. [PMID: 25269462 DOI: 10.1038/ja.2014.137] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Revised: 08/20/2014] [Accepted: 09/02/2014] [Indexed: 11/09/2022]
Abstract
A novel actinomycete strain, designated 11A07(T), was isolated from young Scomberomorus niphonius in the Bohai Sea. Basic local alignment search tool analyses showed that this isolate had the highest 16S rRNA gene sequence similarity of 97.41% with Streptomyces rimosus subsp. paromomycinus DSM 41429(T). Phylogenetic tree revealed that strain 11A07(T) formed a distinct lineage clustered with Streptomyces panacagri Gsoil 519(T), Streptomyces sodiiphilus YIM 80305(T) and Streptomyces albus subsp. albus NRRL B-2365(T) having similarities of 97.30%, 97.10% and 96.83%, respectively. Multilocus sequence analysis further demonstrated that the new isolate was different from the selected representatives of Streptomyces as a separate phylogenetic line. Strain 11A07(T) produced straight or rectiflexibile spore chains with smooth surface, white aerial mycelia and brown diffusible pigments on international streptomyces project 2 medium. Maximum tolerated NaCl concentration for growth was 11.0%. Whole-cell sugars were mannose, ribose, glucose, galactose and xylose. The predominant menaquinones were MK-9(H2), MK-9(H4) and MK-9 (H6). The fatty-acid profile contained iso-C16:0, C18:0 10-methyl (tuberculostearic acid) and anteiso-C17:0 as the major compositions. The polar lipids consisted of diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannoside and an unknown phospholipid. The G+C content of the genomic DNA was 71.4 mol%. These morphological, phenotypic and chemotaxonomic properties showed that strain 11A07(T) could be readily distinguished from the most closely related members of the genus Streptomyces. Thus, based on the polyphasic taxonomic data, strain 11A07(T) (=JCM 19630(T)=CCTCC AA 2013020(T)=KCTC 29263(T)) represents a novel species within the genus Streptomyces, for which the name Streptomyces bohaiensis sp. nov. is proposed.
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Affiliation(s)
- Hua-Qi Pan
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Juan Cheng
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming, China
| | - Dao-Feng Zhang
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming, China
| | - Su-Ya Yu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Thi-Nhan Khieu
- 1] Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming, China [2] School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Chu Ky Son
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Hanoi, Vietnam
| | - Zhao Jiang
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming, China
| | - Jiang-Chun Hu
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Wen-Jun Li
- 1] Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, Yunnan Institute of Microbiology, Yunnan University, Kunming, China [2] State Key Laboratory of Biocontrol, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes, College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, China
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Li WJ, Nimaichand S, Jiang Z, Liu MJ, Khieu TN, Kim CJ, Hozzein WN, Park DJ, Wadaan MAM, Ningthoujam DS. Streptomyces canchipurensis sp. nov., isolated from a limestone habitat. Antonie Van Leeuwenhoek 2014; 106:1119-26. [PMID: 25218304 DOI: 10.1007/s10482-014-0281-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 09/08/2014] [Indexed: 10/24/2022]
Abstract
Hundung Limestone habitat, Manipur, India is an unexplored site for microbial diversity studies. Using polyphasic taxonomy, a Streptomyces strain, MBRL 172(T), has been characterized. The strain was found to show highest 16S rRNA gene sequence similarity with Streptomyces coeruleofuscus NBRC 12757(T) (99.2 %). The DNA relatedness between MBRL 172(T) and S. coeruleofuscus NBRC 12757(T), and between MBRL 172(T) and Streptomyces nogalater NBRC 13445(T), were 36.8 ± 4.4 and 52.5 ± 2.7 %, respectively. Strain MBRL 172(T) was found to contain LL-diaminopimelic acid as the diagnostic diamino acid and glucose, mannose and xylose as the major sugars in whole cell hydrolysates. The polar lipids in the cell membrane were identified as diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol and phosphatidylinositolmannoside. The predominant menaquinones detected were MK-9(H6) and MK-9(H8). The cellular fatty acids identified were mainly saturated fatty acids: anteiso-C15:0, iso-C16:0 and iso-C15:0. Based on differences in the biochemical and molecular characteristics from its closest relatives, the strain can be proposed to represent a novel taxon in the genus Streptomyces, for which the name Streptomyces canchipurensis is proposed, with the type strain MBRL 172(T) (=JCM 17575(T) = KCTC 29105(T)).
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Affiliation(s)
- Wen-Jun Li
- State Key Laboratory of Biocontrol, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institutes College of Ecology and Evolution, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China,
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Jiang Z, Zhang DF, Khieu TN, Son CK, Zhang XM, Cheng J, Tian XP, Zhang S, Li WJ. Bacillus tianshenii sp. nov., isolated from a marine sediment sample. Int J Syst Evol Microbiol 2014; 64:1998-2002. [PMID: 24614848 DOI: 10.1099/ijs.0.062224-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel Gram-stain-positive, motile, catalase- and oxidase-positive, aerobic, endospore-forming, peritrichous, rod-shaped bacterium, designated YIM M13235(T), was isolated from a marine sediment sample collected from the South China Sea. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YIM M13235(T) belonged to the genus Bacillus. The strain grew optimally at 30 °C, pH 7.0 and in the presence of 2-4% (w/v) NaCl. meso-Diaminopimelic acid was present in the cell-wall peptidoglycan. Strain YIM M13235(T) exhibited a menaquinone system with MK-7, and the major polar lipids consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, four unknown phospholipids and one unknown glycolipid. The major fatty acids (>5%) were iso-C(15 : 0), anteiso-C(15 : 0), anteiso-C(17 : 0), iso-C(17 : 1)ω10c and summed feature 4 (anteiso-C(17 : 1) and/or iso-C(17 : 1)). The genomic DNA G+C content was 42.1 mol%. The DNA-DNA relatedness values between strain YIM M13235(T) and its close relatives (16S rRNA gene sequence similarities >97%) including Bacillus halmapalus DSM 8723(T), Bacillus horikoshii DSM 8719(T) and Bacillus zhanjiangensis JSM 099021(T) were 41%, 44% and 44%, respectively. On the basis of genotypic, phenotypic and DNA-DNA relatedness data, it is apparent that strain YIM M13235(T) represents a novel species of the genus Bacillus, for which the name Bacillus tianshenii sp. nov. is proposed. The type strain is YIM M13235(T) ( = DSM 25879(T) = KCTC 33044(T)).
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Affiliation(s)
- Zhao Jiang
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, and Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China
| | - Dao-Feng Zhang
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, and Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China
| | - Thi-Nhan Khieu
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Vietnam.,Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, and Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China
| | - Chu Ky Son
- School of Biotechnology and Food Technology, Hanoi University of Science and Technology, Vietnam
| | - Xiao-Mei Zhang
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, and Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China
| | - Juan Cheng
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, and Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China
| | - Xin-Peng Tian
- Key laboratory of Tropical Marine Bio-resources and Ecology, Chinese Academy of Sciences (CAS); RNAM Center for Marine Microbiology, CAS; Guangdong Key laboratory of Marine Materia Medica; South China Sea Institute of Oceanology, CAS, Guangzhou, 510301, PR China
| | - Si Zhang
- Key laboratory of Tropical Marine Bio-resources and Ecology, Chinese Academy of Sciences (CAS); RNAM Center for Marine Microbiology, CAS; Guangdong Key laboratory of Marine Materia Medica; South China Sea Institute of Oceanology, CAS, Guangzhou, 510301, PR China
| | - Wen-Jun Li
- Key Laboratory of Microbial Diversity in Southwest China, Ministry of Education, and Laboratory for Conservation and Utilization of Bio-resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650091, PR China
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Rajasabapathy R, Mohandass C, Dastager SG, Liu Q, Khieu TN, Son CK, Li WJ, Colaco A. Roseovarius azorensis sp. nov., isolated from seawater at Espalamaca, Azores. Antonie Van Leeuwenhoek 2014; 105:571-8. [PMID: 24384627 DOI: 10.1007/s10482-013-0109-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2013] [Accepted: 12/23/2013] [Indexed: 11/28/2022]
Abstract
A Gram-negative, motile, non-spore forming, rod shaped aerobic bacterium, designated strain SSW084(T), was isolated from a surface seawater sample collected at Espalamaca (38°33'N; 28°39'W), Azores. Growth was found to occur from 15 to 40 °C (optimum 30 °C), at pH 7.0-9.0 (optimum pH 7.0) and with 25-100 % seawater or 0.5-7.0 % NaCl in the presence of Mg(2+) and Ca(2+); no growth was found with NaCl alone. Colonies on seawater nutrient agar were observed to be punctiform, white, convex, circular, smooth, and translucent. Strain SSW084(T) did not grow on Zobell marine agar and tryptic soy agar even when seawater supplemented. The major respiratory quinone was found to be Q-10 and the G + C content was determined to be 61.9 mol%. Phylogenetic analysis based on the 16S rRNA gene sequence indicated that strain SSW084(T) belongs to the genus Roseovarius and that its closest neighbours are Roseovarius tolerans EL-172(T), Roseovarius mucosus DFL-24(T) and Roseovarius lutimaris 112(T) with 95.7, 95.4 and 95.3 % sequence similarity respectively. The remaining species of Roseovarius showed <95 % similarity. The polar lipids of strain SSW084(T) were determined to be phosphatidylethanolamine, diphosphatidylglycerol, phosphatidylglycerol, phosphatidylcholine, an unidentified lipid and one unidentified aminolipid. The major fatty acids identified were identified as C18:1 ω7c (52.5 %) and C16:0 (13.8 %). On the basis of phenotypic, molecular and chemotaxonomic characteristics, strain SSW084(T) is considered to represent a novel species of the genus Roseovarius, for which Roseovarius azorensis sp. nov is proposed. The type strain is SSW084(T) (=KCTC 32421(T) = MTCC 11812(T)).
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Affiliation(s)
- Raju Rajasabapathy
- Biological Oceanography Division, CSIR-National Institute of Oceanography, Dona Paula, 403004, Goa, India
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