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Pierce's Disease
Research Updates

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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

DEVELOPING TRANSCRIPTIONAL PROFILES AND GENE EXPRESSION ANALYSIS OF GRAPE PLANT RESPONSE TO XYLELLA FASTIDIOSA

  • Author(s): Lin, Hong; Doddapaneni, Harshavardhan; Walker, Andrew;
  • Abstract: In the present study, a set of 1,942 non-redundant SSH ESTs in response to Xylella fastidiosa (Xf) infection were cloned from susceptible and resistant sibling genotypes from a Vitis rupestris x Vitis arizonica genetic mapping population. The majorities (54 %) of these ESTs were novel and the rest included genes known to be involved in defense responses. Transcriptional profiling using a custom high-density (382,900 probes) microarray chip of 20,020 Vitis transcripts showed a significant variation in response between the susceptible and resistant genotypes to Xf infection. Out of the 793 transcripts that showed significant response to Xf infection, 28.1% (223 ESTs) were derived from this project.
  • Publication Date: Dec 2005
  • Journal: 2005 Pierce's Disease Research Symposium

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