1
|
Tomida J, Akiyama-Miyoshi T, Tanaka K, Hayashi M, Kutsuna R, Fujiwara N, Kawamura Y. Fusobacterium watanabei sp. nov. As additional species within the genus Fusobacerium, isolated from human clinical specimens. Anaerobe 2021; 69:102323. [PMID: 33515720 DOI: 10.1016/j.anaerobe.2021.102323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 10/22/2022]
Abstract
Eight spindle-shaped bacteria were isolated from clinical samples in Japan and investigated for their taxonomic position. Phylogenetic trees (based on 16S rRNA, rpoB, zinc protease, and gyrB gene sequence comparisons) showed distinct clustering of eight strains with the type strain of Fusobacterium nucleatum and its closely related species. In silico whole genome comparison analysis based on average nucleotide index based on BLAST (ANIb) and digital DNA-DNA hybridization (dDDH) data between our clinical isolates (PAGU 1795, PAGU 1796T, and PAGU 1797) and the type strain of the closely related species showed values of less than 92.4% and 49.5%, respectively. On the basis of its phylogenetic and genomic distinctiveness together with differential phenotypic properties and matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF-MS) characteristic signal patterns, we propose Fusobacterium watanabei sp. nov., with the type strain PAGU 1796T (= GTC 21791T = CCUG 74246T).
Collapse
Affiliation(s)
- Junko Tomida
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Nagoya, Aichi, 464-8650, Japan.
| | - Toru Akiyama-Miyoshi
- Pathogenic Microbe Laboratory, Research Institute, National Center for Global Health and Medicine, Shinjuku, Tokyo, 162-8655, Japan.
| | - Kaori Tanaka
- Division of Anaerobe Research, Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu, Gifu, 501-1194, Japan.
| | - Masahiro Hayashi
- Division of Anaerobe Research, Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu, Gifu, 501-1194, Japan.
| | - Ryo Kutsuna
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Nagoya, Aichi, 464-8650, Japan.
| | - Nagatoshi Fujiwara
- Department of Food and Nutrition, Faculty of Contemporary Human Life Science, Tezukayama University, 3-1-3, Gakuen-Minami, Nara, Naraz, 631-8585, Japan.
| | - Yoshiaki Kawamura
- Department of Microbiology, School of Pharmacy, Aichi Gakuin University, 1-100 Kusumoto-cho, Nagoya, Aichi, 464-8650, Japan.
| |
Collapse
|
2
|
Eisenberg T, Fawzy A, Nicklas W, Semmler T, Ewers C. Phylogenetic and comparative genomics of the family Leptotrichiaceae and introduction of a novel fingerprinting MLVA for Streptobacillus moniliformis. BMC Genomics 2016; 17:864. [PMID: 27809782 PMCID: PMC5093955 DOI: 10.1186/s12864-016-3206-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 10/25/2016] [Indexed: 11/30/2022] Open
Abstract
Background The Leptotrichiaceae are a family of fairly unnoticed bacteria containing both microbiota on mucous membranes as well as significant pathogens such as Streptobacillus moniliformis, the causative organism of streptobacillary rat bite fever. Comprehensive genomic studies in members of this family have so far not been carried out. We aimed to analyze 47 genomes from 20 different member species to illuminate phylogenetic aspects, as well as genomic and discriminatory properties. Results Our data provide a novel and reliable basis of support for previously established phylogeny from this group and give a deeper insight into characteristics of genome structure and gene functions. Full genome analyses revealed that most S. moniliformis strains under study form a heterogeneous population without any significant clustering. Analysis of infra-species variability for this highly pathogenic rat bite fever organism led to the detection of three specific variable number tandem analysis loci with high discriminatory power. Conclusions This highly useful and economical tool can be directly employed in clinical samples without laborious prior cultivation. Our and prospective case-specific data can now easily be compared by using a newly established MLVA database in order to gain a better insight into the epidemiology of this presumably under-reported zoonosis. Electronic supplementary material The online version of this article (doi:10.1186/s12864-016-3206-0) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Tobias Eisenberg
- Abteilung Veterinärmedizin, Landesbetrieb Hessisches Landeslabor (LHL), Schubertstr. 60/H13, D-35392, Giessen, Germany.
| | - Ahmad Fawzy
- Abteilung Veterinärmedizin, Landesbetrieb Hessisches Landeslabor (LHL), Schubertstr. 60/H13, D-35392, Giessen, Germany.,Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza Square, 12211, Egypt.,Institut für Hygiene und Infektionskrankheiten der Tiere, Justus-Liebig-Universität Giessen, D-35392, Giessen, Germany
| | - Werner Nicklas
- Deutsches Krebsforschungszentrum, D-69120, Heidelberg, Germany
| | | | - Christa Ewers
- Institut für Hygiene und Infektionskrankheiten der Tiere, Justus-Liebig-Universität Giessen, D-35392, Giessen, Germany
| |
Collapse
|
3
|
Eisenberg T, Ewers C, Rau J, Akimkin V, Nicklas W. Approved and novel strategies in diagnostics of rat bite fever and other Streptobacillus infections in humans and animals. Virulence 2016; 7:630-48. [PMID: 27088660 DOI: 10.1080/21505594.2016.1177694] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Rat bite fever (RBF), a worldwide occurring and most likely under-diagnosed zoonosis caused by Streptobacillus moniliformis, represents the most prominent disease of Streptobacillus infections. Recently, novel members have been described, from which a reservoir in rats and other animal species and a zoonotic potential can be assumed. Despite regularly published case reports, diagnostics of RBF continues to represent a 'diagnostic dilemma', because the mostly applied 16S rRNA sequence analysis may be uncertain for proper pathogen identification. Virtually nothing is known regarding prevalence in humans and animal reservoirs. For a realistic assessment of the pathogen's spread, epidemiology and virulence traits, future studies should focus on the genomic background of Streptobacillus. Full genome sequence analyses of a representative collection of strains might facilitate to unequivocally identify and type isolates. Prevalence studies using selective enrichment mechanisms may also enable the isolation of novel strains and candidate species of this neglected group of microorganisms.
Collapse
Affiliation(s)
| | - Christa Ewers
- b Institut für Hygiene und Infektionskrankheiten der Tiere, Justus-Liebig-Universität Gießen , Gießen , Germany
| | - Jörg Rau
- c Chemisches und Veterinäruntersuchungsamt Stuttgart , Fellbach , Germany
| | - Valerij Akimkin
- c Chemisches und Veterinäruntersuchungsamt Stuttgart , Fellbach , Germany
| | - Werner Nicklas
- d Deutsches Krebsforschungszentrum , Heidelberg , Germany
| |
Collapse
|
4
|
Eisenberg T, Nicklas W, Mauder N, Rau J, Contzen M, Semmler T, Hofmann N, Aledelbi K, Ewers C. Phenotypic and Genotypic Characteristics of Members of the Genus Streptobacillus. PLoS One 2015; 10:e0134312. [PMID: 26252790 PMCID: PMC4529157 DOI: 10.1371/journal.pone.0134312] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 07/07/2015] [Indexed: 11/19/2022] Open
Abstract
The genus Streptobacillus (S.) remained monotypic for almost 90 years until two new species were recently described. The type species, S. moniliformis, is one of the two etiological agents of rat bite fever, an under-diagnosed, worldwide occurring zoonosis. In a polyphasic approach field isolates and reference strains of S. moniliformis, S. hongkongensis, S. felis as well as divergent isolates were characterized by comparison of molecular data (n = 29) and from the majority also by their physiological as well as proteomic properties (n = 22). Based on growth-independent physiological profiling using VITEK2-compact, API ZYM and the Micronaut system fastidious growth-related difficulties could be overcome and streptobacilli could definitively be typed despite generally few differences. While differing in their isolation sites and dates, S. moniliformis isolates were found to possess almost identical spectra in matrix-assisted laser desorption ionization-time of flight mass spectrometry and Fourier transform infrared spectroscopy. Spectroscopic methods facilitated differentiation of S. moniliformis, S. hongkongensis and S. felis as well as one divergent isolate. Sequencing of 16S rRNA gene as well as functional genes groEL, recA and gyrB revealed only little intraspecific variability, but generally proved suitable for interspecies discrimination between all three taxa and two groups of divergent isolates.
Collapse
Affiliation(s)
- Tobias Eisenberg
- Hessian State Laboratory, Department of Veterinary Medicine, Giessen, Germany
- * E-mail:
| | | | - Norman Mauder
- Chemical and Veterinary Investigation Office (CVUA) Stuttgart, Fellbach, Germany
| | - Jörg Rau
- Chemical and Veterinary Investigation Office (CVUA) Stuttgart, Fellbach, Germany
| | - Matthias Contzen
- Chemical and Veterinary Investigation Office (CVUA) Stuttgart, Fellbach, Germany
| | | | - Nicola Hofmann
- Institute for Multiphase Processes, Leibniz University, Hannover, Germany
| | | | - Christa Ewers
- Institute of Hygiene and Infectious Diseases of Animals, Giessen, Germany
| |
Collapse
|
5
|
The use of gyrB sequence analysis in the phylogeny of the genus Amycolatopsis. Antonie van Leeuwenhoek 2008; 95:1-11. [DOI: 10.1007/s10482-008-9280-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2008] [Accepted: 09/01/2008] [Indexed: 10/21/2022]
|
6
|
Jensen A, Hagelskjaer Kristensen L, Prag J. Detection of Fusobacterium necrophorum subsp. funduliforme in tonsillitis in young adults by real-time PCR. Clin Microbiol Infect 2007; 13:695-701. [PMID: 17403128 DOI: 10.1111/j.1469-0691.2007.01719.x] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Throat swabs from 61 patients, aged 18-32 years, with non-streptococcal tonsillitis (NST) and 92 healthy controls were examined for the presence of Fusobacterium necrophorum DNA using a novel TaqMan-based real-time quantitative PCR assay for F. necrophorum subspecies. The assay was based on the gyrB subunit gene, and detected F. necrophorum DNA in 48% of patients with NST and in 21% of controls (p <0.001). F. necrophorum subsp. funduliforme was the only subspecies found in both patients and controls. The load of F. necrophorum DNA on swabs from patients with NST was significantly higher than that on swabs from controls (p <0.001). Furthermore, patients with recurrent NST had a significantly higher load of F. necrophorum DNA compared to patients with acute NST (p 0.04). In addition, 26 patients with tonsillitis and group C streptococci (GCS) had a significantly higher load of F. necrophorum DNA compared to the NST group (p <0.001). It was concluded that F. necrophorum subsp. funduliforme is present in small numbers as part of the normal human throat flora, and that F. necrophorum in large quantities may cause tonsillitis, especially recurrent tonsillitis. In addition, the study suggests that the concomitant presence of GCS may aggravate F. necrophorum tonsillitis.
Collapse
Affiliation(s)
- A Jensen
- Department of Clinical Microbiology, Viborg Hospital, Viborg, Denmark.
| | | | | |
Collapse
|
7
|
Hayashimoto N, Ueno M, Takakura A, Itoh T. Phylogenetic Analysis of Isolates of Pasteurella pneumotropica from Laboratory Animals Based on the gyrB Gene Sequence. Exp Anim 2006; 55:487-90. [PMID: 17090967 DOI: 10.1538/expanim.55.487] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Phylogenetic analysis using the gyrB sequence was performed to investigate the genetic relevance among 49 isolates of P. pneumotropica. In the phylogeny, the isolates were clearly classified into three groups as follows: group A for the isolates of biotype Jawetz derived from mice, group B for the isolates of biotype Jawetz derived from rats, and group C for the isolates of biotype Heyl. These results suggest that the gyrB sequence of P. pneumotropica differs between the isolates of two biotypes, and also between the isolates derived from mice and rats in the biotype Jawetz.
Collapse
Affiliation(s)
- Nobuhito Hayashimoto
- ICLAS Monitoring Center, Central Institute for Experimental Animals, Kanagawa, Japan
| | | | | | | |
Collapse
|
8
|
Nagaraja TG, Narayanan SK, Stewart GC, Chengappa MM. Fusobacterium necrophorum infections in animals: Pathogenesis and pathogenic mechanisms. Anaerobe 2005; 11:239-46. [PMID: 16701574 DOI: 10.1016/j.anaerobe.2005.01.007] [Citation(s) in RCA: 126] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2004] [Revised: 11/24/2004] [Accepted: 01/18/2005] [Indexed: 11/24/2022]
Abstract
Fusobacterium necrophorum, a Gram-negative, non-spore-forming anaerobe, is a normal inhabitant of the alimentary tract of animals and humans. Two subspecies of F. necrophorum, subsp. necrophorum (biotype A) and subsp. funduliforme (biotype B), have been recognized, that differ morphologically, biochemically, and biologically. The subsp. necrophorum is more virulent and is isolated more frequently from infections than the subsp. funduliforme. The organism is an opportunistic pathogen that causes numerous necrotic conditions (necrobacillosis), either specific or non-specific infections, in a variety of animals. Of these, bovine liver abscesses and foot rot are of significant concern to the cattle industry. Liver abscesses arise with the organisms that inhabit the rumen gaining entry into the portal circulation, and are often secondary to ruminal acidosis and rumenitis complex in grain-fed cattle. Foot rot is the major cause of lameness in dairy and beef cattle. The pathogenic mechanism of F. necrophorum is complex and not well defined. Several toxins or secreted products, such as leukotoxin, endotoxin, hemolysin, hemagglutinin, proteases, and adhesin, etc., have been implicated as virulence factors. The major virulence factor appears to be leukotoxin, a secreted protein of high molecular weight, active specifically against leukocytes from ruminants. The complete nucleotide sequence of the leukotoxin operon of F. necrophorum has been determined. The operon consists of three genes (lktBAC) of which the second gene (lktA) is the leukotoxin structural gene. The leukotoxin appears to be a novel protein and does not share sequence similarity with any other leukotoxin. F. necrophorum is also a human pathogen and the human strains appear to be different from the strains involved in animal infections.
Collapse
Affiliation(s)
- T G Nagaraja
- Department of Diagnostic Medicine/Pathobiology, Kansas State University, 305 Coles Hall, Manhattan, KA 66506, USA.
| | | | | | | |
Collapse
|