Project Number: 5302-22000-005-00
Project Type: Appropriated

Start Date: May 16, 2001
End Date: May 15, 2006

Objective:
Improved understanding of the complex pathosystem and epidemiology of xylellae diseases of agronomic, horticultural and landscape plants in California. Determine the mechanisms of Xf acquisition and transmission by the glassy-winged sharpshooter and other insect vectors of Xf. Identify physiological plant responses to Xf infection. Determine the biochemical and molecular mechanisms of host plant resistance Xf infection. Develop biologically-based, integrated strategies to manage xylellae diseases. Determine the risk of those pests and the impact of exotic and invasive pests on agricultural production systems and other ecosystems.

Approach:
Identify the biotic and abiotic factors that affect the (1) microbial biology and ecology of Xylella fastidiosa (Xf); (2) biology and ecology of insect vectors of Xf, including but not necessarily limited to, behavior, host preference, reproduction and oviposition; (3) acquisition and transmission of Xf by the glassy-winged sharpshooter and other insect vectors; and (4) Xf-insect vector-host plant interactions. Molecular and genomic techniques will be used to determine the mechanism(s) of Xf infection of Vitis and Prunus, and to develop diseases resistant cultivars. Models describing the invasive biology of plant pathogen and insect pests will be developed to assess their potential threat/risk. FY04 PROGRAM INCREASE $241,567. ADD 1SY

Project Team

Civerolo, Edwin - Ed Backus, Elaine Groves, Russell Lin, Hong Chen, Jianchi Ryan, Frederick - Fred

Project Annual Reports

FY 2003   FY 2002

Related National Programs

Plant Diseases (303)   Crop Protection & Quarantine (304)

Related Projects

Genome Sequence of a Pierce's Disease Strain of Xylella Fastidiosa    Genomic Analysis of Xylella Fastidiosa-Grape Interactions    Electrical Studies of Xylella Fastidiosa Transmission by Sharpshooters    Spatial Population Dynamics and Overwintering Biology of the Glassy-Winged Sharpshooter    Developing a Microarray-Pcr-Based Identification and Detection System for Xylella Fastidiosa Strains Important to California    Developing Transcriptional Profiles and Microarray Analysis of Grape Plant Response to Xylella Fastidiosa    Epidemiology of Pierce's Disease in the Central San Joaquin Valley of California: Factors Affecting Pathogen Distribution and Dispersal    Characterization and Identification of Pd Resistant Mechanisms: Analysis of Xylem Anatomic Structures and of Natural Products in Xylem Sap