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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

EFFECTS OF CHEMICAL MILIEU ON ATTACHMENT, AGGREGATION, BIOFILM FORMATION, AND VECTOR TRANSMISSION OF XYLELLA FASTIDIOSA STRAINS

  • Author(s): Purcell, Alexander; Burr, Harvey; Curley, Clytia; Lindow, Steven;
  • Abstract: We have begun work on the effects of chemical and physical factors, including type of media, pH, media volume, and vessel on the in vitro survival, growth and substrate-attachment of a wild-type and mutant strain of Xylella fastidiosa (Xf). The volume of media in which Xf is incubated appears to override the importance of other variables, including any strain differences. Xf populations incubated in small (200uL) volumes died within 24 h in 50% of assays, but fared better as volumes increased. Preliminary results suggest that attachment to the incubation vessel is greater for wild-type compared to an rpfF mutant that does not produce a cell-cell signaling factor.
  • Publication Date: Dec 2004
  • Journal: 2004 Pierce's Disease Research Symposium

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