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Pierce's Disease
Research Updates

piercesdisease.cdfa.ca.gov

What is Pierce's Disease?

Pierce's Disease is a bacterial infection, which is spread by bugs that feed on grapevines, particularly the "glassy winged sharpshooter." Grapevines that become infected with PD can quickly become sick and die.

glassy-winged sharpshooter

CHARACTERIZATION AND IDENTIFICATION PIERCES DISEASE RESISTANCE MECHANISMS: ANALYSIS OF XYLEM ANATOMICAL STRUCTURES AND OF NATURAL PRODUCTS IN XYLEM SAP AMONG VITIS

  • Author(s): Lin, Hong; Walker, Andrew;
  • Abstract: Understanding and utilizing natural defense mechanisms is a critical component of crop improvement. The ultimate solution to Pierces disease (PD) problems likely relies on host resistance. This research proposal focuses on examining PD resistance in several grape species. Although some of resistant species have been tested, the mechanisms involving resistance are not well understood. It appears that PD resistance mechanisms vary. Some resistance mechanisms may be related to anatomical characteristics while others may be due to defense chemicals. The strategy that we are developing for this project will provide research tools to investigate PD resistance mechanisms.
  • Publication Date: Aug 2003
  • Journal: 2003 Pierce's Disease Research Symposium

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