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Lee JH, Lee SR, Lee SY, Lee PC. Complete microbial synthesis of crocetin and crocins from glycerol in Escherichia coli. Microb Cell Fact 2024; 23:10. [PMID: 38178149 PMCID: PMC10765794 DOI: 10.1186/s12934-023-02287-9] [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: 11/12/2023] [Accepted: 12/23/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Crocin, a glycosylated apocarotenoid pigment predominantly found in saffron, has garnered significant interest in the field of biotechnology for its bioactive properties. Traditional production of crocins and their aglycone, crocetin, typically involves extraction from crocin-producing plants. This study aimed to develop an alternative biosynthetic method for these compounds by engineering the metabolic pathways of zeaxanthin, crocetin, and crocin in Escherichia coli strains. RESULTS Employing a series of genetic modifications and the strategic overexpression of key enzymes, we successfully established a complete microbial pathway for synthesizing crocetin and four glycosylated derivatives of crocetin, utilizing glycerol as the primary carbon source. The overexpression of zeaxanthin cleavage dioxygenase and a novel variant of crocetin dialdehyde dehydrogenase resulted in a notable yield of crocetin (34.77 ± 1.03 mg/L). Further optimization involved the overexpression of new types of crocetin and crocin-2 glycosyltransferases, facilitating the production of crocin-1 (6.29 ± 0.19 mg/L), crocin-2 (5.29 ± 0.24 mg/L), crocin-3 (1.48 ± 0.10 mg/L), and crocin-4 (2.72 ± 0.13 mg/L). CONCLUSIONS This investigation introduces a pioneering and integrated microbial synthesis method for generating crocin and its derivatives, employing glycerol as a sustainable carbon feedstock. The substantial yields achieved highlight the commercial potential of microbial-derived crocins as an eco-friendly alternative to plant extraction methods. The development of these microbial processes not only broadens the scope for crocin production but also suggests significant implications for the exploitation of bioengineered compounds in pharmaceutical and food industries.
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Affiliation(s)
- Jun Ho Lee
- Department of Molecular Science and Technology, Department of Applied Chemical and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Seong-Rae Lee
- Department of Molecular Science and Technology, Department of Applied Chemical and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Sang Yup Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Pyung Cheon Lee
- Department of Molecular Science and Technology, Department of Applied Chemical and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, Republic of Korea.
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2
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Update on Novel Taxa and Revised Taxonomic Status of Bacteria Isolated from Nondomestic Animals Described in 2018 to 2021. J Clin Microbiol 2023; 61:e0142522. [PMID: 36533958 PMCID: PMC9945507 DOI: 10.1128/jcm.01425-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Revisions and new additions to bacterial taxonomy can have a significant widespread impact on clinical practice, infectious disease epidemiology, veterinary microbiology laboratory operations, and wildlife conservation efforts. The expansion of genome sequencing technologies has revolutionized our knowledge of the microbiota of humans, animals, and insects. Here, we address novel taxonomy and nomenclature revisions of veterinary significance that impact bacteria isolated from nondomestic wildlife, with emphasis being placed on bacteria that are associated with disease in their hosts or were isolated from host animal species that are culturally significant, are a target of conservation efforts, or serve as reservoirs for human pathogens.
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Lee HS, Choi JY, Kwon SJ, Park ES, Oh BM, Kim JH, Lee PC. Melanin biopolymer synthesis using a new melanogenic strain of Flavobacterium kingsejongi and a recombinant strain of Escherichia coli expressing 4-hydroxyphenylpyruvate dioxygenase from F. kingsejongi. Microb Cell Fact 2022; 21:75. [PMID: 35501871 PMCID: PMC9063278 DOI: 10.1186/s12934-022-01800-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 04/20/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Melanins are a heterologous group of biopolymeric pigments synthesized by diverse prokaryotes and eukaryotes and are widely utilized as bioactive materials and functional polymers in the biotechnology industry. Here, we report the high-level melanin production using a new melanogenic Flavobacterium kingsejongi strain and a recombinant Escherichia coli overexpressing F. kingsejongi 4-hydroxyphenylpyruvate dioxygenase (HPPD). RESULTS Melanin synthesis of F. kingsejongi strain was confirmed via melanin synthesis inhibition test, melanin solubility test, genome analysis, and structural analysis of purified melanin from both wild-type F. kingsejongi and recombinant E. coli expressing F. kingsejongi HPPD. The activity of F. kingsejongi HPPD was demonstrated via in vitro assays with 6 × His-tagged and native forms of HPPD. The specific activity of F. kingsejongi HPPD was 1.2 ± 0.03 μmol homogentisate/min/mg-protein. Bioreactor fermentation of F. kingsejongi produced a large amount of melanin with a titer of 6.07 ± 0.32 g/L, a conversion yield of 60% (0.6 ± 0.03 g melanin per gram tyrosine), and a productivity of 0.03 g/L·h, indicating its potential for industrial melanin production. Additionally, bioreactor fermentation of recombinant E. coli expressing F. kingsejongi HPPD produced melanin at a titer of 3.76 ± 0.30 g/L, a conversion yield of 38% (0.38 ± 0.03 g melanin per gram tyrosine), and a productivity of 0.04 g/L·h. CONCLUSIONS Both strains showed sufficiently high fermentation capability to indicate their potential as platform strains for large-scale bacterial melanin production. Furthermore, F. kingsejongi strain could serve as a model to elucidate the regulation of melanin biosynthesis pathway and its networks with other cellular pathways, and to understand the cellular responses of melanin-producing bacteria to environmental changes, including nutrient starvation and other stresses.
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Affiliation(s)
- Han Sae Lee
- Department of Molecular Science and Technology and Department of Applied Chemistry and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, South Korea
| | - Jun Young Choi
- Department of Molecular Science and Technology and Department of Applied Chemistry and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, South Korea
| | - Soon Jae Kwon
- Department of Molecular Science and Technology and Department of Applied Chemistry and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, South Korea
| | - Eun Seo Park
- Department of Molecular Science and Technology and Department of Applied Chemistry and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, South Korea
| | - Byeong M Oh
- Department of Molecular Science and Technology and Department of Applied Chemistry and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, South Korea
| | - Jong H Kim
- Department of Molecular Science and Technology and Department of Applied Chemistry and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, South Korea
| | - Pyung Cheon Lee
- Department of Molecular Science and Technology and Department of Applied Chemistry and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon, 16499, South Korea.
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4
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Carotenoid Cocktail Produced by An Antarctic Soil Flavobacterium with Biotechnological Potential. Microorganisms 2021; 9:microorganisms9122419. [PMID: 34946021 PMCID: PMC8704924 DOI: 10.3390/microorganisms9122419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 11/17/2022] Open
Abstract
Carotenoids are highly important in pigmentation, and its content in farmed crustaceans and fish correlates to their market value. These pigments also have a nutritional role in aquaculture where they are routinely added as a marine animal food supplement to ensure fish development and health. However, there is little information about carotenoids obtained from Antarctic bacteria and its use for pigmentation improvement and flesh quality in aquaculture. This study identified carotenoids produced by Antarctic soil bacteria. The pigmented strain (CN7) was isolated on modified Luria–Bertani (LB) media and incubated at 4 °C. This Gram-negative bacillus was identified by 16S rRNA analysis as Flavobacterium segetis. Pigment extract characterization was performed through high-performance liquid chromatography (HPLC) and identification with liquid chromatography–mass spectrometry (LC–MS). HPLC analyses revealed that this bacterium produces several pigments in the carotenoid absorption range (six peaks). LC–MS confirms the presence of one main peak corresponding to lutein or zeaxanthin (an isomer of lutein) and several other carotenoid pigments and intermediaries in a lower quantity. Therefore, we propose CN7 strain as an alternative model to produce beneficial carotenoid pigments with potential nutritional applications in aquaculture.
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Kang M, Chhetri G, Kim J, Kim I, Seo T. Sphingomonas sabuli sp. nov., a carotenoid-producing bacterium isolated from beach sand. Int J Syst Evol Microbiol 2021; 71. [PMID: 34323678 DOI: 10.1099/ijsem.0.004896] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-negative, aerobic and non-motile bacterium, strain sand1-3T, was isolated from beach sand collected from Haeundae Beach located in Busan, Republic of Korea. Based on the results of 16S rRNA gene sequence and phylogenetic analyses, Sphingomonas daechungensis CH15-11T (97.0 %), Sphingomonas edaphi DAC4T (96.8 %), Sphingomonas xanthus AE3T (96.5 %) and Sphingomonas oryziterrae YC6722T (96.0 %) were selected for comparing phenotypic and chemotaxonomic characteristics. Cells of strain sand1-3T grew at 7-50 °C (optimum, 30-35 °C), pH 5.0-8.0 (optimum, pH 7.0-8.0) and in the presence of 0-0.5 % (w/v) NaCl (optimum, 0 %). Major polar lipids included diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, sphingoglycolipid, one unidentified glycolipid and one unidentified phosphoglycolipid. The major fatty acids were summed feature 8 (C18 : 1 ω6c and/or C18 : 1 ω7c) and C18 : 1 2-OH. Moreover, the sole respiratory quinone and major polyamine were identified as ubiquinone-10 and homospermidine, respectively. The genomic DNA G+C content was 65.9 mol%. The digital DNA-DNA hybridization, average nucleotide identity and average amino acid identity values of strain sand1-3T and its reference strains with publicly available genomes were 17.9-18.9 %, 72.0-75.3 % and 63.3-76.5 % respectively. Based on polyphasic evidence, we propose Sphingomonas sabuli sp. nov. as a novel species within the genus Sphingomonas. The type strain is sand1-3T (=KCTC 82358T=NBRC 114538T).
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Affiliation(s)
- Minchung Kang
- 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
| | - Jiyoun Kim
- 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
| | - Taegun Seo
- Department of Life Science, Dongguk University-Seoul, Goyang, 10326, Republic of Korea
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Celedón RS, Díaz LB. Natural Pigments of Bacterial Origin and Their Possible Biomedical Applications. Microorganisms 2021; 9:739. [PMID: 33916299 PMCID: PMC8066239 DOI: 10.3390/microorganisms9040739] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/25/2021] [Accepted: 03/29/2021] [Indexed: 12/02/2022] Open
Abstract
Microorganisms are considered one of the most promising niches for prospecting, production, and application of bioactive compounds of biotechnological interest. Among them, bacteria offer certain distinctive advantages due to their short life cycle, their low sensitivity to seasonal and climatic changes, their easy scaling as well as their ability to produce pigments of various colors and shades. Natural pigments have attracted the attention of industry due to an increasing interest in the generation of new products harmless to humans and nature. This is because pigments of artificial origin used in industry can have various deleterious effects. On this basis, bacterial pigments promise to be an attractive niche of new biotechnological applications, from functional food production to the generation of new drugs and biomedical therapies. This review endeavors to establish the beneficial properties of several relevant pigments of bacterial origin and their relation to applications in the biomedical area.
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Affiliation(s)
- Rodrigo Salazar Celedón
- Laboratory of Molecular Applied Biology, Center of Excellence in Translational Medicine, Universidad de La Frontera, Temuco 4810296, Chile;
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
| | - Leticia Barrientos Díaz
- Laboratory of Molecular Applied Biology, Center of Excellence in Translational Medicine, Universidad de La Frontera, Temuco 4810296, Chile;
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile
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Cha QQ, Wang XJ, Ren XB, Li D, Wang P, Li PY, Fu HH, Zhang XY, Chen XL, Zhang YZ, Xu F, Qin QL. Comparison of Alginate Utilization Pathways in Culturable Bacteria Isolated From Arctic and Antarctic Marine Environments. Front Microbiol 2021; 12:609393. [PMID: 33584613 PMCID: PMC7874173 DOI: 10.3389/fmicb.2021.609393] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/07/2021] [Indexed: 11/13/2022] Open
Abstract
Alginate, mainly derived from brown algae, is an important carbon source that can support the growth of marine microorganisms in the Arctic and Antarctic regions. However, there is a lack of systematic investigation and comparison of alginate utilization pathways in culturable bacteria from both polar regions. In this study, 88 strains were isolated from the Arctic and Antarctic regions, of which 60 strains could grow in the medium with alginate as the sole carbon source. These alginate-utilizing strains belong to 9 genera of the phyla Proteobacteria and Bacteroidetes. The genomes of 26 alginate-utilizing strains were sequenced and genomic analyses showed that they all contain the gene clusters related to alginate utilization. The alginate transport systems of Proteobacteria differ from those of Bacteroidetes and there may be unique transport systems among different genera of Proteobacteria. The biogeographic distribution pattern of alginate utilization genes was further investigated. The alginate utilization genes are found to cluster according to bacterial taxonomy rather than geographic location, indicating that the alginate utilization genes do not evolve independently in both polar regions. This study systematically illustrates the alginate utilization pathways in culturable bacteria from the Arctic and Antarctic regions, shedding light into the distribution and evolution of alginate utilization pathways in polar bacteria.
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Affiliation(s)
- Qian-Qian Cha
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Xiu-Juan Wang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Xue-Bing Ren
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Dong Li
- Department of Molecular Biology, Qingdao Vland Biotech Group Inc., Qingdao, China
| | - Peng Wang
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Ping-Yi Li
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Hui-Hui Fu
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xi-Ying Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Xiu-Lan Chen
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Yu-Zhong Zhang
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Fei Xu
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
| | - Qi-Long Qin
- State Key Laboratory of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Qingdao, China
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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8
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Khan I, Debnath SC, Yan C, Chen C, Xu Y, Wang WJ, Yu YC, Zheng DQ, Xu JZ, Wang PM. Flavobacterium ajazii sp. nov., Isolated from Seaweed of Gouqi Island, China. Curr Microbiol 2020; 77:2925-2932. [DOI: 10.1007/s00284-020-02112-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/30/2020] [Indexed: 10/23/2022]
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Choi JY, Lee PC. Psychrobacillus glaciei sp. nov., a psychrotolerant species isolated from an Antarctic iceberg. Int J Syst Evol Microbiol 2020; 70:1947-1952. [PMID: 31985396 DOI: 10.1099/ijsem.0.003998] [Citation(s) in RCA: 6] [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
We performed taxonomic studies on a psychrotolerant strain, designated PB01T, isolated from an Antarctic iceberg. The cells of strain PB01T were Gram-stain-positive, strictly aerobic, white-yellow and rod-shaped. The results of 16S rRNA gene sequence analysis revealed that strain PB01T was closely related to Psychrobacillus psychrodurans DSM 11713T (99.19 % similarity), Psychrobacillus psychrotolerans DSM 11706T (98.91 %) and Psychrobacillus insolitus DSM 5T (98.85 %). Despite high 16S rRNA gene sequence similarity, the degrees of DNA-DNA relatedness between strain PB01T and its three closest phylogenetic neighbours were 62.4±7.3 % for P. psychrodurans DSM 11713T, 61.1±5.4 % for P. psychrotolerans DSM 11706T and 56.1±6.9 % for P. insolitus DSM 5T. The predominant cellular fatty acids were anteiso-C15 : 0, iso-C15 : 0 and C16 : 1ω7с-OH. Menaquinone-8 was the major respiratory quinone, and phosphatidylethanolamine was the major polar lipid. The DNA G+C content of strain PB01T calculated from the complete genome sequence was 36.0 mol%. Based on the phenotypic, chemotaxonomic, genomic and phylogenetic data obtained in the present study, we conclude that strain PB01T represents a novel species of the genus Psychrobacillus, for which we propose the name Psychrobacillus glaciei sp. nov. The type strain is PB01T (=CECT 9792T=KCTC 43041T).
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Affiliation(s)
- Jun Young Choi
- Department of Molecular Science and Technology and Department of Applied Chemistry and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon 16499, Republic of Korea
| | - Pyung Cheon Lee
- Department of Molecular Science and Technology and Department of Applied Chemistry and Biological Engineering, Ajou University, Woncheon-dong, Yeongtong-gu, Suwon 16499, Republic of Korea
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10
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Li GD, Jiang Y, Li YL, Chen X, Zhang K, Shen R, Han L, Huang XS, Jiang CL. Flavobacterium macacae sp. nov., isolated from Macaca mulatta faeces. Int J Syst Evol Microbiol 2019; 70:51-57. [PMID: 31584868 DOI: 10.1099/ijsem.0.003708] [Citation(s) in RCA: 5] [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 yellow, Gram-stain-negative, aerobic, non-gliding, non-spore-forming, rod-shaped strain, designated YIM 102600T, was isolated from the faeces of Macaca mulatta dwelling in the Yunnan Wild Animal Park, Yunnan Province, South-West PR China. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain YIM 102600T was a member of the genus Flavobacterium, and closely related to Flavobacterium qiangtangense F3T (96.9 % similarity) and Flavobacterium noncentrifugens R-HLS-17T (96.0 % similarity). Phylogenetic trees showed that strain YIM 102600T formed a clade with F. qiangtangense F3T and F. noncentrifugens R-HLS-17T. Growth occurred at 4-30 °C (optimum, 28 °C), pH 7.0-8.0 (pH 7.5) and NaCl concentration 0-2 % (w/v; 0-1 %, w/v). The major fatty acids were iso-C15:0 and summed feature 3 (comprising C16:1 ω7c and/or C16:1 ω6c). The predominant polar lipid was phosphatidylethanolamine and the sole respiratory quinone was menaquinone-6. The DNA G+C content was 36.4 mol%. The calculated digital DNA-DNA hybridization values between strain YIM 102600T and other species of Flavobacterium ranged from 70.0 to 75.0 % and average nucleotide identity values were in a range between 13.7 to 23.5 %. Based above the consensus of phenotypic and phylogenetic analyses as well as whole genome comparisons, strain YIM 102600T (=KCTC 52099T=CCTCC AB 201632T) is proposed to represent type strain of a novel species, Flavobacterium macacae sp. nov.
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Affiliation(s)
- Gui-Ding Li
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China.,Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, 2# North Cuihu Road, Kunming, Yunnan 650091, PR China
| | - Yi Jiang
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, 2# North Cuihu Road, Kunming, Yunnan 650091, PR China
| | - You-Long Li
- Yunnan Wild Animal Park, Fengyuan Road, Panlong District, Kunming, Yunnan 650224, PR China
| | - Xiu Chen
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, 2# North Cuihu Road, Kunming, Yunnan 650091, PR China
| | - Kun Zhang
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, 2# North Cuihu Road, Kunming, Yunnan 650091, PR China
| | - Rui Shen
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, 2# North Cuihu Road, Kunming, Yunnan 650091, PR China
| | - Li Han
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China
| | - Xue-Shi Huang
- Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, Liaoning 110819, PR China
| | - Cheng-Lin Jiang
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, 2# North Cuihu Road, Kunming, Yunnan 650091, PR China
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11
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Flavobacterium zhairuonensis sp. nov., a gliding bacterium isolated from marine sediment of the East China Sea. J Microbiol 2019; 57:1065-1072. [DOI: 10.1007/s12275-019-9194-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/19/2019] [Accepted: 09/03/2019] [Indexed: 10/25/2022]
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12
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Flavobacterium viscosus sp. nov. and Flavobacterium tangerina sp. nov., from Primates Feces. Curr Microbiol 2019; 76:818-823. [DOI: 10.1007/s00284-019-01692-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 04/16/2019] [Indexed: 11/26/2022]
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13
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Debnath SC, Chen C, Liu SX, Di YN, Zheng DQ, Li XY, Xu XW, Xu JZ, Wang PM. Flavobacterium sharifuzzamanii sp. nov., Isolated from the Sediments of the East China Sea. Curr Microbiol 2019; 76:297-303. [PMID: 30603961 DOI: 10.1007/s00284-018-1609-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 11/30/2018] [Indexed: 10/27/2022]
Abstract
A novel bacterial strain A7.6T was isolated from the sediments collected near the Zhairuo Island located in the East China Sea and characterized using a polyphasic approach. Cells were Gram-stain-negative, rod-shaped, non-spore forming, non-flagellated but motile by gliding. The strain was aerobic, positive for oxidase and catalase activities. The strain can grow at 4-35 °C, pH 5.5-9.0, and 0-3% (w/v) NaCl concentration. The major polar lipid was phosphatidylethanolamine, the predominant fatty acids (> 10%) were iso-C15:0 and summed feature 3 (C16:1 ω7c and/or C16:1 ω6c). The genomic G+C content was 33.6 mol% and the major respiratory quinone was menaquinone 6. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain A7.6T belonged to the genus Flavobacterium and was closely related to Flavobacterium tistrianum GB 56.1T (98.4% similarity), F. nitrogenifigens NXU-44T (98.4%), F. ginsenosidimutans THG 01T (98.0%) and F. anhuiense D3T (97.7%). Average nucleotide identities and digital DNA-DNA hybridizations values for genomes ranged from 75.9 to 91.4% and 21.4 to 43.9% between strain A7.6T and its closest phylogenetic neighbors. The polyphasic characterization indicated that strain A7.6T represented a novel species of the genus Flavobacterium, for which the name Flavobacterium sharifuzzamanii is proposed. The type strain is A7.6T (= KCTC 62405T = MCCC 1K03485T). The NCBI GenBank accession number for the 16S rRNA gene of A7.6T is MH396692, and for the genome sequence is QJGZ00000000. The digital protologue database (DPD) Taxon Number is TA00643.
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Affiliation(s)
- Sanjit C Debnath
- Ocean College, Zhejiang University, Zhoushan, People's Republic of China
| | - Can Chen
- Ocean College, Zhejiang University, Zhoushan, People's Republic of China
| | - Shu-Xia Liu
- Ocean College, Zhejiang University, Zhoushan, People's Republic of China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, People's Republic of China
| | - Ya-Nan Di
- Ocean College, Zhejiang University, Zhoushan, People's Republic of China
| | - Dao-Qiong Zheng
- Ocean College, Zhejiang University, Zhoushan, People's Republic of China
| | - Xin-Yang Li
- Ocean College, Zhejiang University, Zhoushan, People's Republic of China
| | - Xue-Wei Xu
- Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, 310012, People's Republic of China
| | - Jin-Zhong Xu
- Ocean College, Zhejiang University, Zhoushan, People's Republic of China.
| | - Pin-Mei Wang
- Ocean College, Zhejiang University, Zhoushan, People's Republic of China.
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