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A survey of potential insect vectors of the plant pathogenic bacterium Xylella fastidiosa in three regions of Spain

The emergence of a rapid-spreading olive disease associated with Xylella fastidiosa in southern Italy represents a high risk to susceptible crops in other countries of the Mediterranean basin, if i...

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 ...

Etiology of three recent diseases of citrus in Sao Paulo State: Sudden death, variegated chlorosis and huanglongbing

The state of Sao Paulo (SSP) is the. rst sweet orange growing region in the world. Yet, the SSP citrus industry has been, and still is, under constant attack from various diseases. In the 1940s, tr...

GENETIC DISTANCE MAY UNDERLIE VIRULENCE DIFFERENCES AMONG ISOLATES OF A BACTERIAL PLANT PATHOGEN

Certain pathogens evolve with their hosts in a stepwise arms race of virulence and resistance, mediated by one or a few genetic loci in their genomes. Other pathogens may retain the ability to colo...

Hydraulic disruption and passive migration by a bacterial pathogen in oak tree xylem

Xylella fastidiosa (Xf) is a xylem-limited bacterial pathogen that causes leaf scorch symptoms in numerous plant species in urban, agricultural, and natural ecosystems worldwide. The exact mechanis...

Interactive effects of water stress and xylem-limited bacterial infection on the water relations of a host vine

Xylella fastidiosa, a xylem-limited bacterial pathogen that causes bacterial leaf scorch in its hosts, has a diverse and extensive host range among plant species worldwide. Previous work has shown ...

Oxidative stress tolerance is critical for xylem colonization and virulence of xylem-limited pathogens Xanthomonas albilineans and Xylella fastidiosa

Xanthomonas albilineans (Xal) and Xylella fastidiosa (Xf) are xylem-limited bacteria causing leaf scald of sugarcane and Pierce’s disease in grapevines, respectively. Hydrogen peroxide (H2O2) is es...

SEASONAL FLUCTUATION IN THE OCCURRENCE OF XYLELLA-FASTIDIOSA IN ROOT AND STEM EXTRACTS FROM CITRUS WITH BLIGHT

In two citrus groves in southern Florida where blight is severe, mature trees with blight symptoms were sampled and tested for the presence of Xylella fastidiosa by means of enzyme-linked immunosor...

SURVEY OF XYLELLA FASTIDIOSA AND CITRUS VARIEGATED CHLOROSIS IN SAO PAULO STATE, BRAZIL

Contrary to the well-documented incidence and severity of Citrus variegated chlorosis (CVC) throughout the sweet orange groves of Sao Paulo state (Brazil), the incidence and distribution of its cau...

The complete genome sequence of Xanthomonas albilineans provides new insights into the reductive genome evolution of the xylem-limited Xanthomonadaceae

The Xanthomonadaceae family contains two xylem-limited plant pathogenic bacterial species, Xanthomonas albilineans and Xylella fastidiosa. X. fastidiosa was the first completely sequenced plant pat...

Use of a green fluorescent strain for analysis of Xyella fastidiosa colonization of Vitis vinifera

Xylella fastidiosa causes Pierce's disease of grapevine as well as several other major agricultural diseases but is a benign endophyte in most host plants. X. fastidiosa colonizes the xylem vessels...

XYLELLA-FASTIDIOSA - CULTIVATION IN CHEMICALLY DEFINED MEDIUM

A chemically defined medium, XF-26, supported the in vitro cultivation of two strains of Xylella fastidiosa originally isolated from grapevines with symptoms of Pierce's disease and one strain from...