A remarkable shift in our understanding of plant‐pathogenic bacteria is underway. Until
recently, nearly all research on phytopathogenic bacteria was focused on a small number of …

The description of the ecology of Pseudomonas syringae is moving away from that of a
ubiquitous epiphytic plant pathogen to one of a multifaceted bacterium sans frontières in …

Closely related pathogens may differ dramatically in host range, but the molecular, genetic,
and evolutionary basis for these differences remains unclear. In many Gram-negative …

The Pseudomonas syringae complex is composed of numerous genetic lineages of strains
from both agricultural and environmental habitats including habitats closely linked to the …

Landscapes influence precipitation via the water vapor and energy fluxes they generate.
Biologically active landscapes also generate aerosols containing microorganisms, some …

Crop disease outbreaks are often associated with clonal expansions of single pathogenic
lineages. To determine whether similar boom-and-bust scenarios hold for wild …

Plant resistance (R) genes are a crucial component in plant defence against pathogens.
Although R genes often fail to provide durable resistance in an agricultural context, they …

Background Pseudomonas syringae is a highly diverse bacterial species complex capable
of causing a wide range of serious diseases on numerous agronomically important crops …

Biological residues in soil dust are a potentially strong source of atmospheric ice nuclei (IN).
So far, however, the abundance, diversity, sources, seasonality, and role of biological–in …

The foliar plant pathogen Pseudomonas syringae can establish large epiphytic populations
on leaf surfaces before apoplastic colonization. However, the bacterial genes that contribute …