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Miranda CD, Irgang R, Concha C, Rojas R, Avendaño-Herrera R. Phenotypic and genomic characterization of a non-pathogenic Epilithonimonas ginsengisoli isolated from diseased farmed rainbow trout (Oncorhynchus mykiss) in Chile. JOURNAL OF FISH DISEASES 2024; 47:e13897. [PMID: 38031399 DOI: 10.1111/jfd.13897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/01/2023]
Abstract
Flavobacterial infection associated with diseased fish is caused by multiple bacterial species within the family Flavobacteriaceae. In the present study, the Chilean isolate FP99, from the gills of a diseased, farmed rainbow trout (Oncorhynchus mykiss), was characterized using phenotypic and genomic analyses. Additionally assessed was pathogenic activity. Phylogenetic analysis based on 16S rRNA gene sequencing confirmed that isolate FP99 belonged to the genus Epilithonimonas, an average nucleotide identity value of 100% was detected with the Chilean isolate identified as Epilithonimonas sp. FP211-J200. In silico genome analysis, mechanisms for toxins production, and superantigens, adhesion, or other genes associated with virulence were not detected. However, genes encoding proteins for antibiotic resistance were found, including the chrA gene and the nucleotide sequence that encodes for multiple antibiotic resistance MarC proteins. Furthermore, the blaESP-1 gene (87.85% aminoacidic sequence identity), encoding an extended-spectrum subclass B3 metallo-β-lactamase and conferring carbapenem-hydrolysing activity, and the tet(X) gene, which encodes a monooxygenase that catalyses the degradation of tetracycline-class antimicrobials were carried by this isolate. Phenotyping analyses also supported assignment as E. ginsengisoli. Challenge trials against healthy rainbow trout resulted in no observed pathogenic effect. Our findings identify for the first time the species E. ginsengisoli as associated with fish farming, suggesting that this isolate may be a component of the microbiota of the freshwater system. Notwithstanding, poor environmental conditions and any stressors associated with aquaculture situations or lesions caused by other pathogenic bacteria, such as F. psychrophilum, could favour the entry of E. ginsengisoli into rainbow trout.
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Affiliation(s)
- Claudio D Miranda
- Laboratorio de Patobiología Acuática, Departamento de Acuicultura, Universidad Católica del Norte, Coquimbo, Chile
| | - Rute Irgang
- Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Viña del Mar, Chile
- Interdisciplinary Center for Aquaculture Research (INCAR), Viña del Mar, Chile
| | - Christopher Concha
- Laboratorio de Patobiología Acuática, Departamento de Acuicultura, Universidad Católica del Norte, Coquimbo, Chile
- Centro Tecnológico de Innovación Acuícola AquaPacífico, Coquimbo, Chile
| | - Rodrigo Rojas
- Laboratorio de Patobiología Acuática, Departamento de Acuicultura, Universidad Católica del Norte, Coquimbo, Chile
- Centro Tecnológico de Innovación Acuícola AquaPacífico, Coquimbo, Chile
| | - Ruben Avendaño-Herrera
- Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Viña del Mar, Chile
- Interdisciplinary Center for Aquaculture Research (INCAR), Viña del Mar, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Universidad Andrés Bello, Quintay, Chile
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Zhao L, Yang C, Chen M, Zhang J, Kong M, Dong L, Gong J, Yang J, Pu J, Lu S, Jin D, Liu L, Wang S, Xu J. Marnyiella aurantia, gen. nov., sp. nov., a novel bacterial species of the family Weeksellaceae that could produce flexirubin type pigments. Int J Syst Evol Microbiol 2023; 73. [PMID: 37906507 DOI: 10.1099/ijsem.0.006020] [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: 11/02/2023] Open
Abstract
Two Gram-stain-negative, non-spore-forming, rod-shaped, and obligately aerobic bacteria, designated strains CX-624T and cx-311, were isolated from soil samples in Qinghai Province, China. The two strains grew best at 28 °C on the plate with Tryptone soya agar (TSA). Cells formed circular, convex, translucent, smooth, and orange colonies with approximately 1.0 mm diameter after 2 days of incubation on TSA at 28 °C. The strains were oxidase-negative and catalase-positive. The predominant cellular fatty acids were iso-C15 : 0 and anteiso-C15 : 0, and major polar lipids included phosphatidylethanolamine, an unidentified aminophospholipid, four unidentified lipids and an aminolipid. MK-6 was the sole menaquinone in strain CX-624T. Comparative analysis of the nearly full-length 16S rRNA gene sequences showed strains CX-624T and cx-311 were member of the family Weeksellaceae, with the highest similarity to Kaistella haifensis H38T (96.66 %), Epilithonimonas pallida DSM 18015T (96.59 %), and Chryseobacterium gambrini DSM 18014T (96.53 %). Both phylogenetic analysis of the 16S rRNA gene and 177 core genes revealed that strains CX-624T and cx-311 formed an independent clade. Average nucleotide identity values (< 72.64 %), average amino-acid identity values (<72.61 %) and digital DNA-DNA hybridization (< 21.10 %) indicated that the strains CX-624T and cx-311 should constitute a novel genus. The DNA G+C contents of strains CX-624T and cx-311 were 43.0 mol% and 42.7 mol%. According to the data obtained in this study, strain CX-624T represents a novel species belonging to a novel genus of the Weeksellaceae, for which the name Marnyiella aurantia gen. nov., sp. nov. is proposed. The type strain is CX-624T (=GDMCC 1.1714T = JCM 33925T).
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Affiliation(s)
- Lijun Zhao
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi Province 030001, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Caixin Yang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi Province 030001, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Mengshan Chen
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Jing Zhang
- Marine College, Shandong University, Weihai, PR China
| | - Mimi Kong
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi Province 030001, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Lingzhi Dong
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi Province 030001, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Jian Gong
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi Province 030001, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Jing Yang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 102206, PR China
| | - Ji Pu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
| | - Shan Lu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 102206, PR China
| | - Dong Jin
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 102206, PR China
| | - Liyun Liu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 102206, PR China
| | - Suping Wang
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi Province 030001, PR China
| | - Jianguo Xu
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan, Shanxi Province 030001, PR China
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, PR China
- Research Units of Discovery of Unknown Bacteria and Function, Chinese Academy of Medical Sciences, Beijing 102206, PR China
- Institute of Public Health, Nankai University, Tianjin 300350, PR China
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Menes RJ, Machin EV, Roldán DM, Kyrpides N, Woyke T, Whitman WB, Busse HJ. Frigoriflavimonas asaccharolytica gen. nov., sp. nov., a novel psychrophilic esterase and protease producing bacterium isolated from Antarctica. Antonie van Leeuwenhoek 2021; 114:1991-2002. [PMID: 34541621 DOI: 10.1007/s10482-021-01656-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 09/04/2021] [Indexed: 11/24/2022]
Abstract
The rod-shaped and Gram-stain-negative bacterial strain 16FT, isolated from an air sample collected at King George Island, maritime Antarctica, was investigated to determine its taxonomic status. Strain 16FT is strictly aerobic, catalase positive, oxidase positive and non-motile. Strain 16FT hydrolyses casein, lecithin, Tween 20, 60 and 80, but not aesculin, gelatin and starch. Growth of strain 16FT is observed at 0-20 °C (optimum 10 °C), pH 5.0-8.0 (optimum pH 6.0), and in the presence of 0-2.0% NaCl (optimum 0.5%). The predominant menaquinone is MK-6, and the major fatty acids comprise anteiso-C15:0 and iso-C15:0. The major polar lipids are phosphatidylethanolamine, ornithine lipid OL2, unidentified phospholipid PL1 and the unidentified lipids L3 and L6 lacking functional groups. The DNA G + C content based on the draft genome sequence is 32.3 mol%. Sequence analysis of the 16S rRNA gene indicates the highest similarity to Kaistella palustris 3A10T (95.4%), Kaistella chaponensis Sa 1147-06 T (95.2%), Kaistella antarctica AT1013T (95.1%), Kaistella carnis NCTC 13525 T (95.1%) and below 95.0% to other species with validly published names. Phylogenetic analysis based on 16S rRNA gene and whole-genome sequences places strain 16FT in a distinct branch, indicating a separate lineage within the family Weeksellaceae. Based on the data from our polyphasic approach, 16FT represents a novel species of a new genus, for which the name Frigoriflavimonas asaccharolytica gen. nov, sp. nov. is proposed. The type strain is 16FT (= CCM 8975 T = CGMCC No.1.16844 T).
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Affiliation(s)
- Rodolfo Javier Menes
- Laboratorio de Ecología Microbiana Medioambiental, Facultad de Química, Universidad de la República, Montevideo, Uruguay. .,Laboratorio de Microbiología, Facultad de Ciencias, Unidad Asociada del Instituto de Química Biológica, Universidad de la República, Montevideo, Uruguay.
| | - Eliana V Machin
- Laboratorio de Ecología Microbiana Medioambiental, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Diego M Roldán
- Laboratorio de Ecología Microbiana Medioambiental, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | | | | | | | - Hans-Jürgen Busse
- Institut Für Mikrobiologie, Veterinärmedizinische Universität Wien, Wien, Austria
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Nicholson AC, Gulvik CA, Whitney AM, Humrighouse BW, Bell ME, Holmes B, Steigerwalt AG, Villarma A, Sheth M, Batra D, Rowe LA, Burroughs M, Pryor JC, Bernardet JF, Hugo C, Kämpfer P, Newman JD, McQuiston JR. Division of the genus Chryseobacterium: Observation of discontinuities in amino acid identity values, a possible consequence of major extinction events, guides transfer of nine species to the genus Epilithonimonas, eleven species to the genus Kaistella, and three species to the genus Halpernia gen. nov., with description of Kaistella daneshvariae sp. nov. and Epilithonimonas vandammei sp. nov. derived from clinical specimens. Int J Syst Evol Microbiol 2020; 70:4432-4450. [PMID: 32735208 PMCID: PMC7660247 DOI: 10.1099/ijsem.0.003935] [Citation(s) in RCA: 92] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 10/28/2019] [Accepted: 12/02/2019] [Indexed: 01/10/2023] Open
Abstract
The genus Chryseobacterium in the family Weeksellaceae is known to be polyphyletic. Amino acid identity (AAI) values were calculated from whole-genome sequences of species of the genus Chryseobacterium, and their distribution was found to be multi-modal. These naturally-occurring non-continuities were leveraged to standardise genus assignment of these species. We speculate that this multi-modal distribution is a consequence of loss of biodiversity during major extinction events, leading to the concept that a bacterial genus corresponds to a set of species that diversified since the Permian extinction. Transfer of nine species (Chryseobacterium arachidiradicis, Chryseobacterium bovis, Chryseobacterium caeni, Chryseobacterium hispanicum, Chryseobacterium hominis, Chryseobacterium hungaricum,, Chryseobacterium pallidum and Chryseobacterium zeae) to the genus Epilithonimonas and eleven (Chryseobacterium anthropi, Chryseobacterium antarcticum, Chryseobacterium carnis, Chryseobacterium chaponense, Chryseobacterium haifense, Chryseobacterium jeonii, Chryseobacterium montanum, Chryseobacterium palustre, Chryseobacterium solincola, Chryseobacterium treverense and Chryseobacterium yonginense) to the genus Kaistella is proposed. Two novel species are described: Kaistella daneshvariae sp. nov. and Epilithonimonas vandammei sp. nov. Evidence is presented to support the assignment of Planobacterium taklimakanense to a genus apart from Chryseobacterium, to which Planobacterium salipaludis comb nov. also belongs. The novel genus Halpernia is proposed, to contain the type species Halpernia frigidisoli comb. nov., along with Halpernia humi comb. nov., and Halpernia marina comb. nov.
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Affiliation(s)
- Ainsley C. Nicholson
- Special Bacteriology Reference Laboratory, Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Christopher A. Gulvik
- Special Bacteriology Reference Laboratory, Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Anne M. Whitney
- Special Bacteriology Reference Laboratory, Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Ben W. Humrighouse
- Special Bacteriology Reference Laboratory, Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Melissa E. Bell
- Special Bacteriology Reference Laboratory, Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Barry Holmes
- National Collection of Type Cultures, Health Protection Agency, Colindale, London NW9 5EQ, UK
| | - Arnie G. Steigerwalt
- Special Bacteriology Reference Laboratory, Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Aaron Villarma
- Special Bacteriology Reference Laboratory, Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Mili Sheth
- Division of Scientific Resources, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Dhwani Batra
- Division of Scientific Resources, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Lori A. Rowe
- Division of Scientific Resources, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Mark Burroughs
- Division of Scientific Resources, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Jessica C. Pryor
- Special Bacteriology Reference Laboratory, Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
| | - Jean-François Bernardet
- Institut National de la Recherche Agronomique, Unité de Virologie et Immunologie Moléculaires, Domaine de Vilvert, Jouy-en-Josas, France
| | - Celia Hugo
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
| | - Peter Kämpfer
- Institut für Angewandte Mikrobiologie, Universität Giessen, Giessen, Germany
| | - Jeffrey D. Newman
- Department of Microbial, Biochemical and Food Biotechnology, University of the Free State, Bloemfontein, South Africa
- Biology Department, Lycoming College, Williamsport PA 17701, USA
| | - John R. McQuiston
- Special Bacteriology Reference Laboratory, Bacterial Special Pathogens Branch, Division of High-Consequence Pathogens and Pathology, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA
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García-López M, Meier-Kolthoff JP, Tindall BJ, Gronow S, Woyke T, Kyrpides NC, Hahnke RL, Göker M. Analysis of 1,000 Type-Strain Genomes Improves Taxonomic Classification of Bacteroidetes. Front Microbiol 2019; 10:2083. [PMID: 31608019 PMCID: PMC6767994 DOI: 10.3389/fmicb.2019.02083] [Citation(s) in RCA: 181] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 08/23/2019] [Indexed: 11/25/2022] Open
Abstract
Although considerable progress has been made in recent years regarding the classification of bacteria assigned to the phylum Bacteroidetes, there remains a need to further clarify taxonomic relationships within a diverse assemblage that includes organisms of clinical, piscicultural, and ecological importance. Bacteroidetes classification has proved to be difficult, not least when taxonomic decisions rested heavily on interpretation of poorly resolved 16S rRNA gene trees and a limited number of phenotypic features. Here, draft genome sequences of a greatly enlarged collection of genomes of more than 1,000 Bacteroidetes and outgroup type strains were used to infer phylogenetic trees from genome-scale data using the principles drawn from phylogenetic systematics. The majority of taxa were found to be monophyletic but several orders, families and genera, including taxa proposed long ago such as Bacteroides, Cytophaga, and Flavobacterium but also quite recent taxa, as well as a few species were shown to be in need of revision. According proposals are made for the recognition of new orders, families and genera, as well as the transfer of a variety of species to other genera. In addition, emended descriptions are given for many species mainly involving information on DNA G+C content and (approximate) genome size, both of which can be considered valuable taxonomic markers. We detected many incongruities when comparing the results of the present study with existing classifications, which appear to be caused by insufficiently resolved 16S rRNA gene trees or incomplete taxon sampling. The few significant incongruities found between 16S rRNA gene and whole genome trees underline the pitfalls inherent in phylogenies based upon single gene sequences and the impediment in using ordinary bootstrapping in phylogenomic studies, particularly when combined with too narrow gene selections. While a significant degree of phylogenetic conservation was detected in all phenotypic characters investigated, the overall fit to the tree varied considerably, which is one of the probable causes of misclassifications in the past, much like the use of plesiomorphic character states as diagnostic features.
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Affiliation(s)
- Marina García-López
- Department of Microorganisms, Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Jan P. Meier-Kolthoff
- Department of Microorganisms, Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Brian J. Tindall
- Department of Microorganisms, Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Sabine Gronow
- Department of Microorganisms, Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Tanja Woyke
- Department of Energy, Joint Genome Institute, Walnut Creek, CA, United States
| | - Nikos C. Kyrpides
- Department of Energy, Joint Genome Institute, Walnut Creek, CA, United States
| | - Richard L. Hahnke
- Department of Microorganisms, Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Markus Göker
- Department of Microorganisms, Leibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
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Wen CF, Xi LX, Zhao S, Hao ZX, Luo L, Liao H, Chen ZR, She R, Han GQ, Cao SJ, Wu R, Yan QG, Hou R. Chryseobacterium chengduensis sp. nov. isolated from the air of captive giant panda enclosures in Chengdu, China. J Zhejiang Univ Sci B 2017; 17:610-8. [PMID: 27487806 DOI: 10.1631/jzus.b1500214] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A Gram-negative, aerobic, non-motile, rod-shaped bacterial strain, designated 25-1(T), was isolated from the air inside giant panda enclosures at the Chengdu Research Base of Giant Panda Breeding, China. Strain 25-1(T) grew optimally at pH 7.0-8.0, at 28-30 °C and in the presence of NaCl concentrations from 0.0% to 0.5 %. 16S rRNA gene sequence analysis indicated that strain 25-1(T) belongs to the genus Chryseobacterium within the family Flavobacteriaceae and is related most closely to C. carnis G81(T) (96.4% similarity), C. lathyri RBA2-6(T) (95.8% similarity), and C. zeae JM1085(T) (95.8% similarity). Its genomic DNA G+C molar composition was 36.2%. The major cellular fatty acids were iso-C15:0 (44.0%), iso-C17:0 3OH (19.8%) and C16:1 ω7c/16:1 ω6c (12.7%). The only isoprenoid quinone was menaquinone 6 (MK-6). The major polar lipids were phosphatidylethanolamine, two unidentified amino lipids and two unidentified lipids. The DNA-DNA relatedness between strain 25-1(T) and C. lathyri RBA2-6(T) was 38%. Phenotypic, genotypic, and phylogenetic characteristics indicated that strain 25-1(T) is a novel member of the genus Chryseobacterium, for which the name C. chengduensis sp. nov. is proposed. The type strain is 25-1(T) (CCTCC AB2015133(T)=DSM 100396(T)).
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Affiliation(s)
- Cai-Fang Wen
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Li-Xin Xi
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Shan Zhao
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhong-Xiang Hao
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Lu Luo
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Hong Liao
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhen-Rong Chen
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Rong She
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Guo-Quan Han
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - San-Jie Cao
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Rui Wu
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Qi-Gui Yan
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
| | - Rong Hou
- Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China
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7
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Singh P, Kim YJ, Farh MEA, Dan WD, Kang CH, Yang DC. Chryseobacterium panacis sp. nov., isolated from ginseng soil. Antonie van Leeuwenhoek 2015; 109:187-96. [PMID: 26573006 DOI: 10.1007/s10482-015-0620-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 11/06/2015] [Indexed: 11/26/2022]
Abstract
A novel strain, DCY107(T), was isolated from soil collected from a ginseng field in Gochang, Republic of Korea. Strain DCY107(T) is Gram-negative, yellow pigmented, non-motile, non-flagellate, rod-shaped and aerobic. The strain was found to grow optimally at 25-30 °C and pH 6.5-7. Phylogenetically, strain DCY107(T) is closely related to Chryseobacterium polytrichastri DSM 26899(T) (98.49 % 16S rRNA gene sequence similarity), Chryseobacterium yeoncheonense JCM 18516(T) (97.78 %), Chryseobacterium aahli LMG 27338(T) (97.74 %), Chryseobacterium limigenitum LMG28734(T) (97.74 %), Chryseobacterium ginsenosidimutans JCM 16719(T) (97.47 %) and Chryseobacterium gregarium LMG 24052(T) (97.31 %). The DNA-DNA relatedness values between strain DCY107(T) and reference strains were found to be clearly below 70 %. The DNA G+C content of strain DCY107(T) was determined to be 34.2 mol%. The predominant quinone was identified menaquinone 6 (MK-6). The major polar lipids were identified as phosphatidylethanolamine and unidentified lipids: aminolipids AL1, AL2 and lipid L2. C16:00, iso-C15:00, iso-C15:02OH, iso-C17:03OH and summed feature 9 (iso-C17:1 ω9c and/or C16:0 10-methyl) were identified as the major fatty acids present in strain DCY107(T). The results of physiological and biochemical tests allowed strain DCY107(T) to be differentiated phenotypically from other recognised species belonging to the genus Chryseobacterium. Therefore, it is suggested that the newly isolated organism represents a novel species, for which the name Chryseobacterium panacis sp. nov. is proposed, with the type strain designated as DCY107(T) (=CCTCC AB 2015195(T) = KCTC 42750(T)).
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Affiliation(s)
- Priyanka Singh
- Department of Oriental Medicine Biotechnology, Ginseng Bank, College of Life Science, Kyung Hee University, Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea
| | - Yeon-Ju Kim
- Department of Oriental Medicine Biotechnology, Ginseng Bank, College of Life Science, Kyung Hee University, Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea.
| | - Mohamed El-Agamy Farh
- Graduate School of Biotechnology, College of life science, Kyung Hee University, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea
| | - Wang Dan Dan
- Department of Oriental Medicine Biotechnology, Ginseng Bank, College of Life Science, Kyung Hee University, Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea
| | - Chang Ho Kang
- Division of Applied Life Science and PMBBRC, Gyeongsang National University, 501 Jinju-daero, Jinju, 660-701, Republic of Korea
| | - Deok-Chun Yang
- Department of Oriental Medicine Biotechnology, Ginseng Bank, College of Life Science, Kyung Hee University, Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea.
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