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Divergence of bacterial populations into distinct subpopulations is often the result of ecological isolation. While some studies have suggested the existence of Salmonella enterica subsp. enterica subclades, evidence for these subdivisions has been ambiguous. Here we used a comparative genomics approach to define the population structure of Salmonella enterica subsp. enterica, and identify clade-specific genes that may be the result of ecological specialization.Multi-locus sequence analysis (MLS

The article discusses important upcoming anniversaries of the historical development of the modern day Association of Military Surgeons of the United States (AMSUS) and its medical journal Military Medicine. It does this through chronicling the successive, antecedent military medical and dental associations and their journals which amalgamated to form AMSUS. It follows the development of the Association and the journal from the oldest constituent society.

ABSTRACT Diverse bacteria, including several Pseudomonas species, produce a class of redox-active metabolites called phenazines that impact different cell types in nature and disease. Phenazines can affect microbial communities in both positive and negative ways, where their presence is correlated with decreased species richness and diversity. However, little is known about how the concentr

import base de données jean muratet ecodiv 2021