A collection of 88 Salmonella reference strains including the so-called subgenus I (20 strains), subgenus II (21 strains), subgenus III (= Arizona, 21 strains), subgenus IV (20 strains) and 6 atypical strains (bongor group) was submitted to 90 carbon source utilization tests and 41 biochemical tests. A cluster analysis (Jaccard coefficient, clustering according to the variance) yielded 7 phenons; 35 strains from these 7 phenons were studied by DNA relatedness (S1 nuclease method with DE81 filters). Six hybridization groups, largely concordant with the phenon, were distinguished. Comparison of phenetic and genomic criteria allowed us to subdivide the genus Salmonella into 6 taxa corresponding to (1) subgenus I, subdivided phenotypically into an adapted group and a ubiquitous group, (2) subgenus II, (3) monophasic serovars of subgenus III, (4) diphasic serovars of subgenus III, (5) subgenus IV, and (6) bongor group. The taxonomic level of each of the 6 taxa is not that of a subgenus, but that of a subspecies.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Mucosal leishmaniasis is associated with the Leishmania RNA virus and inappropriate cutaneous leishmaniasis treatment.
PLoS One
January 2025
Departamento de Salud Pública, Facultad de Medicina, Universidad Nacional de Colombia, Bogotá, Colombia.
Background: Mucosal leishmaniasis (ML) is a severe clinical form of leishmaniasis that is characterized by the destruction of the nasal and/or the oral mucosae and appears as a late complication in 5% to 10% of cutaneous leishmaniasis (CL) cases produced by species belonging to Leishmania (Viannia) subgenus. Some strains of Leishmania spp. carry an RNA virus known as Leishmania RNA virus (LRV) that may contribute to the appearance of ML.
View Article and Find Full Text PDFA novel strain of Leishmania braziliensis harbors not a toti- but a bunyavirus.
PLoS Negl Trop Dis
December 2024
Life Science Research Centre, Faculty of Science, University of Ostrava, Ostrava, Czechia.
Leishmania is a genus of the family Trypanosomatidae that unites obligatory parasitic flagellates causing a variety of vector-borne diseases collectively called leishmaniasis. The symptoms range from relatively innocuous skin lesions to complete failures of visceral organs. The disease is exacerbated if a parasite harbors Leishmania RNA viruses (LRVs) of the family Pseudototiviridae.
View Article and Find Full Text PDFIdentification and genetic characterization of five novel bat coronaviruses from Yunnan, China.
BMC Vet Res
October 2024
Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, 650500, P. R. China.
Article Synopsis
- - Coronaviruses (CoVs) pose a significant healthcare challenge due to their ability to cause diseases in humans, and bats are potential hosts for these zoonotic viruses, with increasing cases of novel CoVs identified in them.
- - A study analyzing 61 bats in Yunnan Province found seven CoVs, revealing varied genetic structures and unique recombination patterns that increase the risk of transmission to other species, including civets and pangolins.
- - The research highlights the high diversity of CoVs in bats and indicates that ongoing monitoring of these animals is crucial to prevent potential outbreaks of new viral infections in humans.
Whole genome characteristics of hedgehog coronaviruses from Poland and analysis of the evolution of the Spike protein for its interspecies transmission potential.
BMC Vet Res
September 2024
Department of Preclinical Sciences and Infectious Diseases, University of Life Sciences in Poznań, ul. Wołyńska 35, Poznań, 60-637, Poland.
Article Synopsis
- Recent studies indicate that hedgehogs may harbor a new type of coronavirus, specifically Betacoronavirus erinacei (BCoV-Eri), which poses a risk of transmission to humans, particularly those working with animals in rehabilitation centers.
- In an investigation conducted in urban Poland, 20% of hedgehogs tested positive for BCoV-Eri, with infection rates notably higher in juvenile and female specimens, although no link was found between the virus's presence and overall animal health.
- Genetic analysis of two strains revealed significant variability in their spike (S) protein, suggesting that these coronaviruses are evolving and may adapt to infect different hosts more effectively.
Unveiling the Enigmatic nature of six neglected Amazonian Leishmania (Viannia) species using the hamster model: Virulence, Histopathology and prospection of LRV1.
PLoS Negl Trop Dis
August 2024
Laboratório de Patologia das Moléstias Infecciosas, Departamento de Patologia, Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, São Paulo, Brazil.
American tegumentary leishmaniasis (ATL) is highly endemic in the Amazon basin and occurs in all South American countries, except Chile and Uruguay. Most Brazilian ATL cases are due to Leishmania (Viannia) braziliensis, however other neglected Amazonian species are being increasingly reported. They belong to the subgenus L.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!