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A chitinase is required for Xylella fastidiosa colonization of its insect and plant hosts

Xylella fastidiosa colonizes the xylem network of host plant species as well as the foregut of its required insect vectors to ensure efficient propagation. Disease management strategies remain inef...

A multigene phylogenetic study of clonal diversity and divergence in North American strains of the plant pathogen Xylella fastidiosa

Xylella fastidiosa is a pathogen that causes leaf scorch and related diseases in over 100 plant species, including Pierce's disease in grapevines (PD), phony peach disease (PP), plum leaf scald (PL...

Combined use of a new SNP-based assay and multilocus SSR markers to assess genetic diversity of Xylella fastidiosa subsp pauca infecting citrus and coffee plants

Two haplotypes of Xylella fastidiosa subsp. pauca (Xfp) that correlated with their host of origin were identified in a collection of 90 isolates infecting citrus and coffee plants in Brazil, based ...

EVALUATION OF A RAPID ELISA TEST KIT FOR DETECTION OF XYLELLA-FASTIDIOSA IN LANDSCAPE TREES

Leaf scorch symptoms on landscape trees infected with Xylella fastidiosa are often confused with similar symptoms caused by stress factors. Because the isolation of X. fastidiosa from trees is diff...

Insects as alternative hosts for phytopathogenic bacteria

Phytopathogens have evolved specialized pathogenicity determinants that enable them to colonize their specific plant hosts and cause disease, but their intimate associations with plants also predis...

Intersubspecific Recombination in Xylella fastidiosa Strains Native to the United States: Infection of Novel Hosts Associated with an Unsuccessful Invasion

The bacterial pathogen Xylella fastidiosa infects xylem and causes disease in many plant species in the Americas. Different subspecies of this bacterium and different genotypes within subspecies in...

NATURAL HOSTS OF XYLELLA-FASTIDIOSA IN FLORIDA

Fluorescence microscopy, enzyme-linked immunosorbent assay, and direct culturing were used to determine natural infection of various weeds and wild plants with Xylella fastidiosa, a xylem-limited b...

NEW HOSTS OF XYLELLA FASTIDIOSA STRAIN CoDiRO IN APULIA

In the course of surveys carried out in June 2014 in the Salento (Apulia, southern Italy) area affected by an epidemic of a strain of Xylella fastidiosa subsp. pauca (Cariddi et al., 2014) denoted ...

Phylogenetic relationships of Xylella fastidiosa strains from different hosts, based on 16S rDNA and 16S-23S intergenic spacer sequences

The phylogenetic relationships of Xylella fastidiosa strains isolated from different hosts, including citrus trees, coffee, grapevine, plum and pear, were inferred by sequence analysis of the 16S r...

Reservoir hosts of Xylella fastidiosa, causal agent of Pierce's disease of grapevines, in North Carolina

Pierce’s disease (PD) of grapevines is caused by the xylem-limited bacterium Xylella fastidiosa (Xf) which is transmitted by leafhoppers and spittlebugs. Leafhopper populations were surveyed in six...

Specific amplification of iron receptor genes in Xylella fastidiosa strains from different hosts

Bacterial production of siderophores may involve specific genes related to nonribosomal peptide and polyketide biosynthesis, which have not been fully identified in the genome of Xylella fastidiosa...

The Bacterial Pathogen Xylella fastidiosa Affects the Leaf Ionome of Plant Hosts during Infection

Xylella fastidiosa is a plant pathogenic bacterium that lives inside the host xylem vessels, where it forms biofilm believed to be responsible for disrupting the passage of water and nutrients. Her...