A. R. Flores

Emergent emm4 group A Streptococcus evidences a survival strategy during interaction with immune effector cells

This study identifies a survival strategy in emm4 group A Streptococcus strains through downregulation of SLO and upregulation of msrAB, enabling better macrophage survival without increased virulence.

LiaR-dependent gene expression contributes to antimicrobial responses in group A Streptococcus

This study identifies the LiaFSR regulon in Group A Streptococcus and shows how phosphorylated LiaR regulates virulence and AMP resistance via SpxA2 and other genes.

Temporal Dynamics of Genetically Heterogeneous Extended-Spectrum Cephalosporin Resistant Escherichia coli Bloodstream Infections

This study uses whole genome sequencing to analyze the temporal dynamics and genetic diversity of extended-spectrum cephalosporin-resistant Escherichia coli bloodstream infections in a U.S. cancer center, revealing stable STc131 prevalence and heterogeneous clonal complexes driving infection peaks.

A revised phylogenetic classification for Viola (Violaceae)

This paper provides a revised phylogenetic classification of the genus Viola, incorporating phylogeny, morphology, chromosome counts, and ploidy data, and introduces new subgenera, sections, and subsections.

Genome-wide analysis of in vivo CcpA binding with and without its key co-factor HPr in the major human pathogen group A Streptococcus.

This study identifies the in vivo DNA binding profile of CcpA in group A Streptococcus and shows that HPr is required for CcpA-mediated regulation and DNA binding.

Viola unica (Violaceae L.), a very rare, high elevation, single site new species endemic to the northern semi-desert Altiplano of Chile

The paper describes a new Viola species found in northern Chile, based on a single unidentified specimen and a preliminary taxonomic analysis.