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Park M, Kim J. Arthrobacter horti sp. nov., isolated from mountain soil. Int J Syst Evol Microbiol 2024; 74. [PMID: 39008344 DOI: 10.1099/ijsem.0.006459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024] Open
Abstract
Gram-stain-positive, aerobic, rod-shaped strains, YJM1T and YJM12S, were isolated from Maebong Mountain, Dogok-dong, Gangnam-gu, Seoul, Republic of Korea. Strains YJM1T and YJM12S exhibited growth at 5-35 °C (optimum, 20-30 °C) and pH 6-9 (optimum, pH 7) and in 0-4 % (w/v) NaCl. Strains YJM1T and YJM12S showed highest 16S rRNA gene sequence similarity to the following members of the genus Arthrobacter: A. nanjingensis A33T (98.3 %/98.2 % similarity), A. woluwensis NBRC 107840T (98.2 %/98.1 %), A. humicola KV-653T (97.3 %), A. oryzae KV-651T (97.3 %), and A. globiformis NBRC 12137T (97.2 %). The strains grew well on Reasoner's 2A, nutrient, Mueller-Hinton, yeast-dextrose, and glucose-peptone-meat extract agars. The major polar lipids of strain YJM1T were phosphatidylglycerol, diphosphatidylglycerol, and phosphatidylinositol. The primary respiratory quinone of strain YJM1T was MK-9(H2), and the major fatty acids of strains YJM1T and YJM12S were anteiso-C15 : 0, anteiso-C17 : 0, iso-C15 : 0, and iso-C16 : 0. The DNA G+C content, based on the whole genome sequence of strain YJM1T, was 68.3 mol%. Average nucleotide identity values and digital DNA-DNA hybridization values between strain YJM1T and the reference strains ranged from 75.0 to 92.7 % and from 21.0 to 65.3 %, respectively. Strain YJM1T exhibited antimicrobial activity against Bacillus subtilis and Escherichia coli. Considering the chemotaxonomic, phenotypic, genotypic, and phylogenetic results, we propose the strain YJM1T represents a novel species in the genus Arthrobacter and suggest the name Arthrobacter horti sp. nov. (type strain YJM1T=KACC 23300T=JCM 36483T).
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Affiliation(s)
- Mingyeong Park
- Department of Life Science, College of Natural Sciences, Kyonggi University, Suwon, Kyonggi-Do 16227, Republic of Korea
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Siddiqi MZ, Lee SY, Yeon JM, Im WT. Arthrobacter hankyongi sp. nov., Isolated From Wet Land. Curr Microbiol 2023; 80:92. [PMID: 36725813 DOI: 10.1007/s00284-022-03162-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 12/22/2022] [Indexed: 02/03/2023]
Abstract
A Gram-staining-positive, catalase positive and oxidase negative, non-motile, non-flagellated, and oval-shaped bacterium, was designated as I2-34 T, isolated from wetland in Soul South Korea. Colonies were round, entire, raised, and cream colored after two days of incubation on R2A agar plates at 25 °C. Based on genomes (both 16S rRNA gene and draft genome) sequence analysis, strain I2-34 T belongs to the genus Arthrobacter and was most closely related to Arthrobacter deserti YIM CS25T (98.0%). The strain I2-34 T had a circular genome with length of 5,186,447 base pairs (67 contigs) and 4830 total genes. Out of 4696 were protein-coding genes, 54 tRNA and 4 rRNA genes. The chemotaxonomic analysis indicates iso-C16:0, anteiso-C15:0, and anteiso-C17:0 as major fatty acids, phosphatidylglycerol (PG), diphosphatidylglycerol (DPG), and two unidentified glycolipids (GL1, GL2) as major polar lipids. The predominant quinone was MK-8(H2). The peptidoglycan type was A3α with an. L-Lys-L-Ala interpeptide bridge. Thus, the experimental data demonstrated here show that the novel isolate shares the similar major fatty acids, major polar lipid PG, DPG, and GLs, major and major quinone MK8-(H2) with the described members of the genus Arthrobacter. However, the low 16S rRNA gene sequence (98.0%), and some physiological and biochemical characteristics differentiate the I2-34 T from its closest phylogenetic neighbors. As a result, the isolate represents a novel species in within the genus Arthrobacter and family Micrococcaceae for which the name Arthrobacter hankyongi sp. nov. is proposed. The type strain is I2-34 T (= KACC 22217 T, LMG 32197 T).
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Affiliation(s)
- Muhammad Zubair Siddiqi
- Department of Biotechnology, Hankyong National University, 327 Jungang-Roo, Anseong-Si, Gyeonggi-Do, 17579, Republic of Korea.,AceEMzyme Co., Ltd., Academic Industry Cooperation, Room 403, 327 Jungang-Ro, Anseong-Si, Gyeonggi-Do, 17579, Republic of Korea.,HK Ginseng Research Center, Hankyong National University, 327 Jungang-Ro, Anseong-Si, Gyeonggi-Do, 17579, Republic of Korea
| | - Soon-Youl Lee
- Department of Biotechnology, Hankyong National University, 327 Jungang-Roo, Anseong-Si, Gyeonggi-Do, 17579, Republic of Korea
| | - Jun Mo Yeon
- Korean Collection for Type Cultures, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsin-Gil, Jeongeup-Si, Jeollabuk-Do, 56212, Republic of Korea
| | - Wan-Taek Im
- Department of Biotechnology, Hankyong National University, 327 Jungang-Roo, Anseong-Si, Gyeonggi-Do, 17579, Republic of Korea. .,AceEMzyme Co., Ltd., Academic Industry Cooperation, Room 403, 327 Jungang-Ro, Anseong-Si, Gyeonggi-Do, 17579, Republic of Korea. .,HK Ginseng Research Center, Hankyong National University, 327 Jungang-Ro, Anseong-Si, Gyeonggi-Do, 17579, Republic of Korea.
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Vodickova P, Suman J, Benesova E, Strejcek M, Neumann-Schaal M, Cajthaml T, Ridl J, Pajer P, Ulbrich P, Uhlik O, Lipovova P. Arthrobacter polaris sp. nov., a new cold-adapted member of the family Micrococcaceae isolated from Antarctic fellfield soil. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005541] [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
An aerobic, Gram-stain-positive and non-spore-forming strain, designated C1-1T, was isolated from a fellfield soil sample collected from frost-sorted polygons on Jane Col, Signy Island, Maritime Antarctic. Cells with a size of 0.65–0.9×1.2–1.7 µm have a flagellar motile apparatus and exhibit a rod–coccus growth cycle. Optimal growth conditions were observed at 15–20 °C, pH 7.0 and NaCl concentration up to 0.5 % (w/v) in the medium. The 16S rRNA gene sequence of C1-1T showed the highest pairwise similarity of 98.77 % to
Arthrobacter glacialis
NBRC 113092T. Phylogenetic trees based on the 16S rRNA and whole-genome sequences revealed that strain C1-1T belongs to the genus
Arthrobacter
and is most closely related to members of the ‘
Arthrobacter psychrolactophilus
group’. The G+C content of genomic DNA was 58.95 mol%. The original and orthologous average nucleotide identities between strain C1-1T and
A. glacialis
NBRC 113092T were 77.15 % and 77.38 %, respectively. The digital DNA–DNA relatedness values between strain C1-1T and
A. glacialis
NBRC 113092T was 21.6 %. The polar lipid profile was composed mainly of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol and an unidentified glycolipid. The predominant cellular fatty acids were anteiso-C15 : 0 (75 %) and anteiso-C17 : 0 (15.2 %). Menaquinone MK-9(H2) (86.4 %) was the major respiratory quinone in strain C1-1T. The peptidoglycan type was determined as A3α (l-Lys–l-Ala3; A11.6). Based on all described phylogenetic, physiological and chemotaxonomic characteristics, we propose that strain C1-1T (=DSM 112353T=CCM 9148T) is the type strain of a novel species Arthrobacter polaris sp. nov.
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Affiliation(s)
- Patricie Vodickova
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 16628, Prague 6, Czech Republic
| | - Jachym Suman
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 16628, Prague 6, Czech Republic
| | - Eva Benesova
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 16628, Prague 6, Czech Republic
| | - Michal Strejcek
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 16628, Prague 6, Czech Republic
| | - Meina Neumann-Schaal
- Bacterial Metabolomics, Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Inhoffenstraße 7B, 38124, Braunschweig, Germany
| | - Tomas Cajthaml
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 14220, Prague 4, Czech Republic
- Institute for Environmental Studies, Faculty of Science, Charles University, Benátská 2, 12801, Prague 2, Czech Republic
| | - Jakub Ridl
- Department of Zoology, Faculty of Science, Charles University, Viničná 1594, 128 00, Prague 2, Czech Republic
- Laboratory of Genomics and Bioinformatics, Institute of Molecular Genetics of the Czech Academy of Sciences, Vídeňská 1083, 14220, Prague 4, Czech Republic
| | - Petr Pajer
- Military Health Institute, Military Medical Agency, Tychonova 1, 16001, Prague 6, Czech Republic
| | - Pavel Ulbrich
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 16628, Prague 6, Czech Republic
| | - Ondrej Uhlik
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 16628, Prague 6, Czech Republic
| | - Petra Lipovova
- Department of Biochemistry and Microbiology, Faculty of Food and Biochemical Technology, University of Chemistry and Technology, Technická 5, 16628, Prague 6, Czech Republic
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Fang Z, Zhao X, Wu Q, Li S, Liu Q, Tan L, Weng Q. Arthrobacter cavernae sp. nov., a novel actinobacterium isolated from sediment of karst cave. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005445] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel, Gram-stain-positive, aerobic, non-endospore-forming, non-motile and rod-shaped bacterium designated PO-11T was isolated from sediment of karst cave collected in Libo county, Guizhou Province, PR China. The isolate grew optimally on R2A agar at 25 °C, pH 8.0 and with 0.5 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that PO-11T belonged to the genus
Arthrobacter
and was most closely related to
Arthrobacter methylotrophus
TGAT (98.3 % sequence similarity),
Arthrobacter alkaliphilus
LC6T (97.7 %) and
Arthrobacter ramosus
CCM1646T (97.1 %). Genome sequencing revealed a genome size of 4 073 119 bp and the genomic DNA G+C content was 66.16 mol%. Its DNA–DNA relatedness values with
A. methylotrophus
TGAT,
A. alkaliphilus
LC6T and
A. ramosus
CCM1646T were 23.0, 22.9 and 23.2 %, respectively. The main fatty acids were anteiso-C15 : 0, anteiso-C17 : 0 and iso-C16 : 0. The major respiratory quinone was MK-9(H2). The polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol, glycolipid, phosphatidylethanolamine, phosphatidylinositol and unidentified lipids. Thus, based on phylogenetic and phenotypic and chemotaxonomic data, strain PO-11T represents a novel species of the genus
Arthrobacter
, for which the name Arthrobacter cavernae sp. nov. is proposed. The type strain is strain PO-11T (=CCTCC AB 2021070T=LMG 32459T).
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Affiliation(s)
- Zheng Fang
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, PR China
| | - Xiaoyong Zhao
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, PR China
| | - Qingshan Wu
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, PR China
| | - Shixia Li
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, PR China
| | - Qiuping Liu
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, PR China
| | - Leitao Tan
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, PR China
| | - Qingbei Weng
- Qiannan Normal University for Nationalities, Duyun 558000, PR China
- School of Life Sciences, Guizhou Normal University, Guiyang 550025, PR China
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Arthrobacter terrae sp. nov., a psychrophilic actinobacterium with multi copies of capA gene isolated from Antarctic soil. Antonie van Leeuwenhoek 2022; 115:635-644. [PMID: 35338420 DOI: 10.1007/s10482-022-01727-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 03/06/2022] [Indexed: 10/18/2022]
Abstract
A Gram-staining-positive, non-spore-forming, non-flagellated, ellipsoidal, strain Z1-20 T belonging to the genus Arthrobacter was isolated from a soil sample collected from the Zhongshan station, Antarctic. Phylogenetic analysis of the 16S rRNA gene sequences and phylogenetic analysis revealed that strain Z1-20 T formed a unique single cluster in the genus Arthrobacter and shared high 16S rRNA sequence similarities of 97.1% and 96.9% with A. glacialis HLT2-12-2 T and A. psychrochitiniphilus GP3T, respectively. Values of Digital DNA-DNA hybridization (dDDH) between strain Z1-20 T against A. glacialis HLT2-12-2 T and A. psychrochitiniphilus GP3T were 20.3% and 13.8%, respectively. Average nucleotide identity (ANI) score between strain Z1-20 T against A. glacialis HLT2-12-2 T and A. psychrochitiniphilus GP3T were 72.5% and 72.1%, respectively. Genes for the synthesis of the osmoprotectant glycine betaine and higher copies of capA gene encoding cold shock protein were found in genome of Z1-20 T that may help Z1-20 T in cold-adaptation. Strain Z1-20 T comprised lysine as the diagnostic diamino acid. Based on the results of phylogenetic, phenotypic and chemotaxonomic features, strain Z1-20 T represents a novel species of a novel taxon of genus Arthrobacter, for which the name Arthrobacter terrae gen. nov., sp. nov. is proposed.
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Yang LL, Liu HC, Liu Q, Xin YH. Arthrobacter cheniae and Arthrobacter frigidicola sp. nov., isolated from a glacier. Int J Syst Evol Microbiol 2021; 71. [PMID: 34919039 DOI: 10.1099/ijsem.0.005177] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Two Gram-stain-positive, aerobic, rod-shaped, pink and light pink colony-forming bacteria, designated as Hz2T and MDT2-14T, respectively, were isolated from glacier cryoconite samples. Comparisons based on 16S rRNA gene sequences showed that strains Hz2T and MDT2-14T take Arthrobacter bussei KR32T and Arthrobacter zhaoguopingii J391T as their closest neighbours, respectively. The average nucleotide identity values between the two novel strains and their closest relatives were 83.56 and 93.06 %, respectively. The two strains contain MK-9(H2) as their predominant menaquinone. The polar lipids of both strains were phosphatidylglycerol, diphosphatidylglycerol, phosphatidylinositol and an unidentified glycolipid. The major fatty acids of strain Hz2T were anteiso-C15 : 0, summed feature 3 (comprising C16 : 1 ω7c and/or C16 : 1 ω6c) and iso-C15 : 0, while the major fatty acids of strain MDT2-14T were anteiso-C15 : 0 and anteiso-C17 : 0. Based on these data, we propose two novel species, Arthrobacter cheniae sp. nov. (Hz2T = CGMCC 1.9262T=NBRC 113086T) and Arthrobacter frigidicola sp. nov. (MDT2-14T=CGMCC 1.9882T=NBRC 113089T).
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Affiliation(s)
- Lei-Lei Yang
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Hong-Can Liu
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Qing Liu
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.,State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Yu-Hua Xin
- China General Microbiological Culture Collection Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China.,State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
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Abstract
A Gram-stain-positive, aerobic and rod-shaped bacterial strain, designated JH1-1T, was isolated from a forest soil sample collected in Suwon, Gyeonggi-do, Republic of Korea. Strain JH1-1T could grow at 10-35 °C (optimum, 28-30 °C), pH 4.5-8.5 and tolerated 5 % (w/v) NaCl. Strain JH1-1T was most closely related to members of the genus Arthrobacter, namely Arthrobacter alkaliphilus LC6T (98.5 % similarity), Arthrobacter methylotrophus TGAT (98.4 %), Arthrobacter ramosus CCM 1646T (97.8 %), Arthrobacter bambusae THG-GM18T (97.5 %) and Arthrobacter pokkalii P3B162T (97.3 %). The strain grew well on Reasoner's 2A agar, tryptone soya agar, nutrient agar, Mueller-Hinton agar and Luria-Bertani agar. The major polar lipid profile comprised phosphatidylglycerol, diphosphatidylglycerol, unidentified phospholipid and unidentified glycolipids. The major respiratory quinone was MK-9(H2). The main fatty acids were C15 : 0 anteiso, C15 : 0 iso, C16 : 0 iso and C17 :0 anteiso. The DNA G+C content of the isolated strain based on the whole genome sequence was 63.6 mol%. The average nucleotide identity and digital DNA-DNA hybridization values between strain JH1-1T and its reference type strains ranged from 81.3 to 85.4 % and from 21.1 to 29.1 %, respectively. Based on phenotypic, chemotypic and genotypic evidence, strain JH1-1T could be differentiated phylogenetically and phenotypically from the recognized species of the genus Arthrobacter. Therefore, strain JH1-1T is considered to represent a novel species, for which the name Arthrobacter terricola sp. nov. is proposed. The type strain is JH1-1T (=KACC 21385T=JCM 33641T).
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Affiliation(s)
- Ngoc Hoang Trinh
- Thai Nguyen University of Sciences, Thai Nguyen City, Thai Nguyen province 250000, Vietnam.,Department of Life Science, College of Natural Sciences, Kyonggi University, Suwon, Gyeonggi-Do 16227, Republic of Korea
| | - Jaisoo Kim
- Department of Life Science, College of Natural Sciences, Kyonggi University, Suwon, Gyeonggi-Do 16227, Republic of Korea
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Ye JJ, Liu SW, Lu QP, Cheema MT, Abbas M, Sajid I, Huang DL, Sun CH. Arthrobacter mobilis sp. nov., a novel actinobacterium isolated from Cholistan desert soil. Int J Syst Evol Microbiol 2020; 70:5445-5452. [PMID: 32886595 DOI: 10.1099/ijsem.0.004431] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-positive, aerobic, catalase-positive, oxidase-negative, non-mycelium-forming, motile, rod-shaped with one polar flagellum actinobacterium, designated E918T, was isolated from a desert soil collected in Cholistan desert, Pakistan. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain E918T belonged to the genus Arthrobacter and was most closely related to Arthrobacter deserti CGMCC 1.15091T (97.2 % similarity). The peptidoglycan was of the A3α type and the whole-cell sugar profile was found to contain galactose. The major menaquinone was MK-9(H2). The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol and two unidentified glycolipids. The major fatty acids identified were anteiso-C15 : 0 and anteiso-C17 : 0. The G+C content of the genomic DNA was 68.69 mol%. The digital DNA-DNA hybridization and average nucleotide identity values between strain E918T and A. deserti CGMCC 1.15091T were 28.0 and 83.4%, respectively. On the basis of its phylogenetic, phenotypic and chemotaxonomic features, strain E918T was considered to represent a novel species of the genus Arthrobacter, for which the name Arthrobacter mobilis sp. nov. is proposed. The type strain of Arthrobacter mobilis is E918T (=JCM 33392T=CGMCC 1.16978T).
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Affiliation(s)
- Jing-Jing Ye
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China.,College of Basic Medical Sciences, Guilin Medical University, Guilin 541004, PR China
| | - Shao-Wei Liu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Qin-Pei Lu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
| | - Mohsin Tassawar Cheema
- Department of Microbiology and Molecular Genetics, University of the Punjab, Quid-i-Azam Campus, Lahore 54590, Pakistan
| | - Muhammad Abbas
- Department of Microbiology and Molecular Genetics, University of the Punjab, Quid-i-Azam Campus, Lahore 54590, Pakistan
| | - Imran Sajid
- Department of Microbiology and Molecular Genetics, University of the Punjab, Quid-i-Azam Campus, Lahore 54590, Pakistan
| | - Da-Lin Huang
- College of Basic Medical Sciences, Guilin Medical University, Guilin 541004, PR China
| | - Cheng-Hang Sun
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, PR China
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Arthrobacter crusticola sp. nov., Isolated from Biological Soil Crusts in the Mu Us Sandy Land, China. Curr Microbiol 2020; 77:2042-2048. [PMID: 32583159 DOI: 10.1007/s00284-020-02070-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 05/30/2020] [Indexed: 10/24/2022]
Abstract
Mu Us Sandy Land in China is a very fragile ecological environment due to serious desertification. While attempting to gain insights into the biodiversity of biological soil crusts of Mu Us Sandy Land, a novel bacterial strain, SLN-3T, was isolated. It was phylogenetically placed into the genus Arthrobacter within the family Micrococcaceae based on its 16S rRNA gene sequence. The most closely related species were Arthrobacter ruber MDB1-42T (98.6%) and Arthrobacter agilis DSM 20550T (98.3%). Cells of the novel species were Gram-stain-positive, aerobic, and non-endospore-forming. The values of average nucleotide identity and the digital DNA-DNA hybridization between SLN-3T and MDB1-42T were 84.9% and 21.3%, respectively. The draft genome size of strain SLN-3T was 3.67 Mb, and its genomic G+C content was 68.1%. The predominant cellular fatty acids were anteiso-C15:0 and C17:0 anteiso. Glucose, galactose, and ribose were the whole-cell sugars. The polar lipids consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, glycolipid, and phospholipid. The peptidoglycan contained lysine, glutamic acid, and alanine. The predominant menaquinone was MK-9(H2). Based on the data from the chemotaxonomic, phylogenetic, and phenotypic evidence, a novel species named Arthrobacter crusticola sp. nov is proposed, whose type strain is SLN-3T (= ACCC 61595T = JCM 33723T).
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