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Genome-based phylogeny and taxonomy of the 'Enterobacteriales': proposal for Enterobacterales ord. nov. divided into the families Enterobacteriaceae, Erwiniaceae fam. nov., Pectobacteriaceae fam.
TLDR
The work presented here represents the first comprehensive, genome-scale taxonomic analysis of the entirety of the order 'Enterobacteriales', and a proposal is made here for the order Enterobacterales ord. nov. which consists of seven families.
A phylogenomic reappraisal of family-level divisions within the class Halobacteria: proposal to divide the order Halobacteriales into the families Halobacteriaceae, Haloarculaceae fam. nov., and
TLDR
A comprehensive comparative analysis of 129 sequenced genomes from members of the class Halobacteria is completed in order to identify shared molecular characteristics, in the forms of conserved signature insertions/deletions (CSIs) and Conserved signature proteins (CSPs), which can provide reliable evidence, independent of phylogenetic trees, that the species from the groups in which they are found are specifically related to each other due to common ancestry.
Bacteriocins of Non-aureus Staphylococci Isolated from Bovine Milk
ABSTRACT Non-aureus staphylococci (NAS), the bacteria most commonly isolated from the bovine udder, potentially protect the udder against infection by major mastitis pathogens due to bacteriocin
A phylogenomic and molecular markers based analysis of the phylum Chlamydiae: proposal to divide the class Chlamydiia into two orders, Chlamydiales and Parachlamydiales ord. nov., and emended
TLDR
A division of the class Chlamydiia into two orders is proposed: an emended order ChlamYDiales, containing the family Chlamydiaiaceae and the closely related Candidatus family Clavichlamydeaceae, and the novel order Parachlamydiales ord. nov. containing the families Parachlimydiaceae, Simkaniaceae and Waddliaceae.
Virulence gene profiles: alpha-hemolysin and clonal diversity in Staphylococcus aureus isolates from bovine clinical mastitis in China
TLDR
The diversity of virulence gene profiles, especially the hla gene and, their relationship with molecular types were reported for the first time in S. aureus from bovine mastitis, which will be useful for future studies on immunogenicity and vaccine development.
Comparison of treatment records and inventory of empty drug containers to quantify antimicrobial usage in dairy herds.
TLDR
In comparison to methods used in surveillance programs on AMU in livestock that assume a constant use in all herds, INV provided a herd-level specific quantity of AMU positively correlated with AMU recorded at the animal level in general, and a positive association was observed for the 6 most commonly used antimicrobials.
Prevalence and Genetic Basis of Antimicrobial Resistance in Non-aureus Staphylococci Isolated from Canadian Dairy Herds
TLDR
This study provided consensus protein sequences of key elements previously associated with resistance for 25 species of non-aureus staphylococci from dairy cattle, important for evaluating effects of interventions in antimicrobial use in Canadian dairy herds.
Prevalence of non-aureus staphylococci species causing intramammary infections in Canadian dairy herds.
TLDR
Overall prevalence of NAS intramammary infection was 35% at calving, decreased over the next 10 d, and then gradually increased until the end of lactation; therefore, accurate identification (species level) is essential for studying NAS epidemiology.
Comprehensive Phylogenetic Analysis of Bovine Non-aureus Staphylococci Species Based on Whole-Genome Sequencing
TLDR
A robust phylogeny of bovine NAS species is established, unaffected by method or model of evolutionary reconstructions, and it is now possible to determine associations between phylogeny and many biological traits, such as virulence, antimicrobial resistance, environmental niche, geographical distribution, and host specificity.
Associations between digital dermatitis lesion grades in dairy cattle and the quantities of four Treponema species
TLDR
A novel species-specific qPCR that can identify the absolute abundance of the four of the most common species of Treponema in DD, particularly T. phagedenis, T. medium and T. pedis, and interactions among them, independent of T. denticola are developed.
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