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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...
An engineered innate immune defense protects grapevines from Pierce disease
We postulated that a synergistic combination of two innate immune functions, pathogen surface recognition and lysis, in a protein chimera would lead to a robust class of engineered antimicrobial th...
Application of competitive enzyme-linked immunosorbent assay for the quantification of imidacloprid titers in xylem fluid extracted from grapevines
A competitive enzyme-linked immunosorbent assay (ELISA) technique was evaluated for quantifying titers of imidacloprid in xylem fluid extracted from Vitis vinifera L. grapevines that were treated w...
A Survey of Sharpshooters (Hemiptera: Cicadellidae) in Virginia Vineyards, a Region of Expanding Concern for Pierce's Disease
A survey was conducted during the 2006 and 2007 growing seasons to record the presence of sharpshooters (Hemiptera: Cicadellidae) vectors of Pierce's disease in Vitis vinifera L. growing regions of...
Cell Wall-Degrading Enzymes Enlarge the Pore Size of Intervessel Pit Membranes in Healthy and Xylella fastidiosa-Infected Grapevines
The pit membrane (PM) is a primary cell wall barrier that separates adjacent xylem water conduits, limiting the spread of xylem-localized pathogens and air embolisms from one conduit to the next. T...
Cooperative efforts contained spread of Pierce's disease and found genetic resistance
An outbreak of Pierce's disease of grapevine in the Temecula Valley in the late 1990s was one in a decades-long series of sporadic appearances of this infection in California. However, the new outb...
Detection and analysis of the bacterium, Xylella fastidiosa, in glassy-winged sharpshooter, Homalodisca vitripennis, populations in Texas
The glassy-winged sharpshooter, Homalodisca vitripeninis Germar (Hemiptera: Cicadellidae), is a xylophagous insect that is an endemic pest of several economically important plants in Texas. H. vitr...
Draft Whole-Genome Sequences of Xylella fastidiosa subsp. fastidiosa Strains TPD3 and TPD4, Isolated from Grapevines in Hou-li, Taiwan
We report the draft assemblies of TPD3 and TPD4, two Xylella fastidiosa subsp. fastidiosa isolates infecting grapevines in Hou-li, Taiwan. TPD3 and TPD4 showed similar characteristics regarding gen...
GENETIC VARIATION OF XYLELLA FASTIDIOSA ASSOCIATED WITH GRAPEVINES IN TWO MAJOR VITICULTURAL REGIONS IN THE UNITED STATES: CALIFORNIA AND TEXAS
Xylella fastidiosa (Xf) causes diseases in many agricultural, horticultural, and landscape crops, including Pierce's disease (PD) of grapevines. PD has been a serious problem in scattered table, wi...
GRAPEVINE NECROTIC UNION, A NEWLY RECOGNIZED DISEASE OF UNKNOWN ETIOLOGY IN GRAPEVINES GRAFTED ON 110 RICHTER ROOTSTOCK IN CALIFORNIA
In Northern California, surveys of several vineyards planted to Vitis vinifera cv. Pinot noir (PN) clones 02A, 667, 777, and UCD 04 grafted onto the rootstock V berlandieri x V rupestris 110 Richte...
Hypervariations of a protease-encoding gene, PD0218 (pspB), in Xylella fastidiosa strains causing almond leaf scorch and Pierce's disease in California
Xylella fastidiosa is a gram-negative plant pathogenic bacterium that causes almond leaf scorch disease (ALSD) and Pierce's disease (PD) of grape in many regions of North America and Mexico. Of the...
