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Woo H, Chhetri G, Kim I, So Y, Park S, Jung Y, Seo T. Pedobacter rhodius sp. nov. and Pedobacter punctiformis sp. nov., isolated from soil. Antonie Van Leeuwenhoek 2024; 117:72. [PMID: 38671237 DOI: 10.1007/s10482-024-01963-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 04/01/2024] [Indexed: 04/28/2024]
Abstract
Two Gram-staining negative, catalase- and oxidase-positive, pinkish-colored and rod-shaped strains, designated SJ11T and HCMS5-2 T, were isolated from soil in South Korea. The growth of strain SJ11T was observed from 15℃ to 35℃ (optimum, 30℃), from pH 6.0 to 11.0 (optimum, pH 6.0-7.0) and with NaCl 0-1% (w/v) (optimum, 0%) and that of strain HCMS5-2 T was observed from 4℃ to 40℃ (optimum, 25℃), from pH 6.0 to pH 8.0 (optimum, pH 7.0) and with NaCl 0-5% (w/v) (optimum, 0-1%). Phylogenetic analysis based on 16S rRNA gene sequences showed that both strains belonged to the genus Pedobacter. Strain SJ11T had the highest 16S rRNA similarities with Pedobacter jejuensis THG-DR3T (98.5%) and strain HCMS5-2 T had the highest similarities with Pedobacter nototheniae 36B243T (98.7%). The digital DNA-DNA hybridization value of strain SJ11T with Pedobacter jejuensis THG-DR3T was 23.6%, with an average nucleotide identity value of 79.6%, and that of strain HCMS5-2 T with Pedobacter nototheniae 36B243T was 26.4%, with an average nucleotide identity value of 83.1%. The predominant cellular fatty acids (> 10%) of SJ11T and HCMS5-2 T were iso-C15:0, summed feature 3 (comprising C16:1ω7c and/or C16:1ω6c) and iso-C17:0 3-OH. The genome size of strain SJ11T was approximately 4.7 Mb with a G + C content of 37.7% and that of strain HCMS5-2 T was approximately 4.1 Mb with a G + C content of 36.4%. The major polar lipid and respiratory quinone of SJ11T and HCMS5-2 T were phosphatidylethanolamine and menaquinone NK-7, respectively. Results of this study showed that strains SJ11T and HCMS5-2 T belonged to the genus Pedobacter as novel species, of which the name Pedobacter rhodius sp. nov., with the type strain SJ11T (= KACC 22884 T = TBRC 16597 T) and Pedobacter punctiformis sp. nov., with the type strain HCMS5-2 T (= KACC 22863 T = TBRC 16598 T) were respectively proposed.
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Affiliation(s)
- Haejin Woo
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Geeta Chhetri
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Inhyup Kim
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Yoonseop So
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Sunho Park
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Yonghee Jung
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
| | - Taegun Seo
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea.
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Chen Q, Hou K, Tang M, Ying S, Zhao X, Li G, Pan J, He X, Xia H, Li Y, Lou Z, Zhang L. Screening of potential microbial markers for lung cancer using metagenomic sequencing. Cancer Med 2022; 12:7127-7139. [PMID: 36480163 PMCID: PMC10067086 DOI: 10.1002/cam4.5513] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/12/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Lung cancer is the most prevalent cancer with high mortality in China, and it is associated with the dysbiosis of the lung microbiome. This study attempted to screen for specific microorganisms as potential biomarkers for distinguishing benign lung disease from lung cancer. METHODS Bronchoalveolar lavage fluid (BALF) sample was selected in the study instead of saliva to avoid contamination with oral microorganisms, and microbial taxonomic and functional differences in BALF samples from patients with lung cancer and those with those from patients with benign lung diseases were performed based on metagenomic next-generation sequencing, for the first time, so that microorganisms other than bacteria could be included. RESULTS The results showed that the intrasample diversity of malignant samples was different from benign samples, and the microbial differences among malignant samples were smaller, with lower microbial diversity, significantly changed microbial abundance and metabolic functions. Metabolic function analysis revealed amino acid-related metabolism was more prevalent in benign samples, whereas carbohydrate-related metabolism was more prevalent in malignant samples. By LEfSe, Metastat and Random Forest analysis, we identified a series of important differential microorganisms. Importantly, the model combining five key genera plus one tumor marker (neuron-specific enolase) as indicators presented the optimal disease typing performance. CONCLUSION Thus results suggest the value of these differential microorganisms enriched in tumors in mechanism research and may be potential new targets for lung cancer therapy. More importantly, the biomarkers identified in this study can be conducive to improve the clinical diagnosis of lung cancer and have good application prospects.
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Affiliation(s)
| | - Kai Hou
- Tianjin Chest Hospital Tianjin China
- Tianjin Medical University Tianjin China
| | | | - Shuo Ying
- Tianjin Chest Hospital Tianjin China
| | | | | | | | | | - Han Xia
- Hugobiotech Co., Ltd. Beijing China
| | | | | | - Li Zhang
- Tianjin Chest Hospital Tianjin China
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Chau LTT, Kim YS, Cha CJ. Pedobacter aquae sp. nov., a multi-drug resistant bacterium isolated from fresh water. Antonie van Leeuwenhoek 2022; 115:445-457. [DOI: 10.1007/s10482-022-01708-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 01/11/2022] [Indexed: 12/01/2022]
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Im HS, Joung Y, Lee SS. Pedobacter riviphilus sp. nov., isolated from stream sediment. Int J Syst Evol Microbiol 2021; 71. [PMID: 34590995 DOI: 10.1099/ijsem.0.004989] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, aerobic, motile by gliding, rod-shaped and pink-coloured bacterium, designated strain SW-16T, was isolated from the sediment of small stream in the Republic of Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain SW-16T formed a lineage within the genus Pedobacter of the family Sphingobacteriaceae. Phylogenetic analysis also showed that strain SW-16T was most closely related to Pedobacter soli 15-51T (98.0% 16S rRNA gene sequence similarity), Pedobacter humicola R135T (97.5%), Pedobacter suwonensis 15-52T (97.4%), Pedobacter sandarakinus DS-27T (97.0%) and Pedobacter kyungheensis THG-T17T (97.0%). Growth was observed at 10-37 °C (optimum at 30 °C), pH 6-8 (optimum at pH 7) and with 0-2.0 % NaCl (optimum at 0%). The major fatty acids of the bacterial strain were iso-C15 : 0, iso-C17 : 0 3-OH and summed feature 3 (iso-C15 : 0 2-OH and/or C16 : 1 ω7c). The predominant respiratory quinone was menaquinone-7 and the major polar lipids were phosphatidylethanolamine, two unidentified amino lipids, one unidentified phospholipid and three unidentified lipids. The genome size of strain SW-16T was 5.8 Mbp and the G+C content was 38.5 mol%. Based on the results of phenotypic, genomic and phylogenetic analyses, strain SW-16T represents a novel species of the genus Pedobacter, for which the name Pedobacter riviphilus sp. nov. is proposed. The type strain is SW-16T (=KEMB 1602-396T=KCTC 82079T=JCM 34181T).
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Affiliation(s)
- Hong Sik Im
- Department of Life Science, Kyonggi University, 154-42 Gwanggyosan-ro Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea
| | - Yochan Joung
- KEMB, Kyonggi University, 154-42 Gwanggyosan-ro Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea
| | - Sang-Seob Lee
- Department of Life Science, Kyonggi University, 154-42 Gwanggyosan-ro Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea.,KEMB, Kyonggi University, 154-42 Gwanggyosan-ro Yeongtong-gu, Suwon-si, Gyeonggi-do 16227, Republic of Korea
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Complete Genome Sequence of Pedobacter sp. PAMC26386 and Their Low Temperature Application in Arabinose-containing Polysaccharides Degradation. Curr Microbiol 2021; 78:944-953. [PMID: 33638002 DOI: 10.1007/s00284-021-02364-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/29/2021] [Indexed: 10/22/2022]
Abstract
Pedobacter are a representative genus of soil-associated bacteria. Here we have provided the complete genome sequence of Pedobacter sp. PAMC26386 isolated from Antarctic soil, and functionally annotated the genome, describing the unique features of carbohydrate active enzymes (CAZymes) and α-L-arabinofuranosidase (α-L-ABF). The genome of Pedobacter sp. PAMC26386 is circular and comprises 4,796,773 bp, with a 38.2% GC content. The genome encodes 4,175 genes, including 7 rRNA and 44 tRNA genes. We identified 172 genes (8 auxiliary activities, 8 carbohydrate binding modules, 23 carbohydrate esterases, 86 glycoside hydrolases, 42 glycosyl transferases, and 5 polysaccharide lyases) related to CAZymes using the dbCAN2 tool. We checked enzyme activity on 11 substrates using the AZCL assay and obtained strong activity for arabinooligosaccharide and hemicellulose. This includes information regarding α-L-ABF, which is active at low temperatures, based on the annotation results. Our findings on Pedobacter sp. PAMC26386 provide the basis for research in the future. The favorable properties of Pedobacter sp. PAMC26386 make it a good candidate for industrial applications involving low temperatures.
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Song J, Joung Y, Li SH, Hwang J, Cho JC. Sphingobacterium chungjuense sp. nov., isolated from a freshwater lake. Int J Syst Evol Microbiol 2020; 70:6126-6132. [PMID: 33054902 DOI: 10.1099/ijsem.0.004507] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, rod-shaped, aerobic, non-flagellated, chemoheterotrophic bacterium, designated strain IMCC25678T, was isolated from an artificial freshwater reservoir, Chungju Lake, in the Republic of Korea. The 16S rRNA gene sequence analysis indicated that strain IMCC25678T belongs to the genus Sphingobacterium with ≤98.7 % sequence similarities to Sphingobacterium species. Whole genome sequencing of strain IMCC25678T revealed a 3.9 Mbp genome size with a DNA G+C content of 42.2 mol%. The IMCC25678T genome shared ≤89.7 % average nucleotide identity and ≤21.4 % digital DNA-DNA hybridization values with closely related species of the genus Sphingobacterium, indicating that the strain represents a novel species. Summed feature 3 (C16 : 1 ω6c and/or C16 : 1 ω7c), iso-C15 : 0 and iso-C17 : 0 3-OH were found to be the predominant cellular fatty acid constituents in the strain. The major respiratory quinone was MK-7. The major polar lipids were phosphatidylethanolamine, one unidentified phosphoglycolipid, one unidentified sphingolipid and three unidentified polar lipids. Based on the phylogenetic and phenotypic characteristics, strain IMCC25678T was considered to represent a novel species within the genus Sphingobacterium, for which the name Sphingobacterium chungjuense sp. nov. is proposed. The type strain is IMCC25678T (=KACC 19485T=NBRC 113130T).
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Affiliation(s)
- Jaeho Song
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Yochan Joung
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Shan-Hui Li
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Juchan Hwang
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
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Song J, Joung Y, Li SH, Hwang J, Cho JC. Leeia aquatica sp. nov., isolated from freshwater. Int J Syst Evol Microbiol 2020; 70:5848-5853. [PMID: 32985969 DOI: 10.1099/ijsem.0.004487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, rod-shaped, obligately aerobic, motile by a single polar flagellum, chemoheterotrophic bacterium, designated strain IMCC25680T, was isolated from surface water in Chungju Lake, Republic of Korea. 16S rRNA gene sequence analysis revealed that strain IMCC25680T was most closely related to Leeia oryzae HW7T with 95.5% sequence similarity and formed a robust clade with L. oryzae HW7T. Whole genome sequencing showed that strain IMCC25680T had a genome 3.6 Mbp long with 60.7 mol% DNA G+C content. Average nucleotide identity and digital DNA-DNA hybridization values between strain IMCC25680T and L. oryzae HW7T were 72.4% and 18.5%, respectively, indicating that the novel strain represents a novel species of the genus Leeia. The major cellular fatty acids of strain IMCC25680T were iso-C16:0 and summed feature 3 (comprising C16:1 ω6c and/or C16:1 ω7c). The respiratory quinone detected in the strain was ubiquinone-8. The major polar lipids were found to be phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol and two unidentified polar lipids. On the basis of the phylogenetic and phenotypic characterization, strain IMCC25680T was considered to represent a novel species within the genus Leeia, for which the name Leeia aquatica sp. nov. is proposed. The type strain is IMCC25680T (=KACC 19487T =NBRC 113132T).
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Affiliation(s)
- Jaeho Song
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Yochan Joung
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Shan-Hui Li
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Juchan Hwang
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Jang-Cheon Cho
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
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Oren A, Garrity G. List of new names and new combinations previously effectively, but not validly, published. Int J Syst Evol Microbiol 2020; 70:4043-4049. [DOI: 10.1099/ijsem.0.004244] [Citation(s) in RCA: 199] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Aharon Oren
- The Institute of Life Sciences, The Hebrew University of Jerusalem, The Edmond J. Safra Campus, 9190401 Jerusalem, Israel
| | - George Garrity
- Department of Microbiology & Molecular Genetics, Biomedical Physical Sciences, Michigan State University, East Lansing, MI 48824-4320, USA
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He XY, Li N, Chen XL, Zhang YZ, Zhang XY, Song XY. Pedobacter indicus sp. nov., isolated from deep-sea sediment. Antonie van Leeuwenhoek 2019; 113:357-364. [DOI: 10.1007/s10482-019-01346-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 10/02/2019] [Indexed: 10/25/2022]
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Park M, Song J, Nam GG, Cho JC. Rhodoferax lacus sp. nov., isolated from a large freshwater lake. Int J Syst Evol Microbiol 2019; 69:3135-3140. [PMID: 31334696 DOI: 10.1099/ijsem.0.003602] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-staining-negative, aerobic, motile with a single polar flagellum and rod-shaped bacterium as a bacterial host of podovirus P26218, designated IMCC26218T, was isolated from Lake Soyang, South Korea. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain IMCC26218T belonged to the genus Rhodoferax of the family Comamonadaceae and shared 97.7-99.0 % sequence similarities with Rhodoferax species. The draft whole genome sequence of strain IMCC26218T was ca. 4.9 Mbp in size with the DNA G+C content of 62.3 mol%. Average nucleotide identity (ANI) and digital DNA-DNA hybridisation (dDDH) values between strain IMCC26218T and other Rhodoferax were 74.0-77.3 % and 19.5-21.0 %, respectively, showing that the strain represents a new Rhodoferax species. The strain contained summed feature 3 (C16 : 1 ω6c and/or C16 : 1 ω7c) and C16 : 0 as the major fatty acids and phosphatidylethanolamine, three unidentified phospholipids, two unidentified aminolipids and two unidentified lipids as major polar lipids. The predominant isoprenoid quinone of the strain was ubiquinone-8 (Q-8). On the basis of the phylogenetic and phenotypic characteristics, strain IMCC26218T is considered to represent a novel species of the genus Rhodoferax, for which the name Rhodoferax lacus sp. nov. is proposed. The type strain is IMCC26218T (=KACC 18983T=NBRC 112709T).
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Affiliation(s)
- Miri Park
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Jaeho Song
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Gi Gyun Nam
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
| | - Jang-Cheon Cho
- Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea
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