Method for treatment and control of plant disease
AssigneeThe Texas A&M University System
InventorsCarlos F. Gonzalez, Stephen J. Ahern, Mayukh Das, Ryland F. Young, III, Tushar Suvra Bhowmick
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Abstract
Methods and compositions are provided for preventing or reducing symptoms or disease associated with Xylella fastidiosa or Xanthomonas axonopodis in a plant. The invention provides novel bacteriophages virulent to Xylella fastidiosa or Xanthomonas axonopodis, including XfaMija and XfaMijo, and further provides methods for treating or preventing Pierce's Disease or Citrus Canker in plants.
Claims14
1-22. (canceled)
A plant disease biocontrol composition formulated for delivery to a plant, the composition comprising at least one carrier and at least one bacteriophage isolate of Xfas500 phage type;
- wherein said bacteriophage isolate is virulent to Xylella fastidiosa and Xanthomonas species, and the bacteriophage is capable of lysing said Xylella fastidiosa or Xanthomonas bacteria, further wherein the Xfas500 phage type displays the following characteristics:
- (a) the bacteriophage is capable of lysing said Xylella fastidiosa and/or Xanthomonas bacteria;
- (b) the bacteriophage infects a cell by adsorption to a Type IV pilus;
- (c) the bacteriophage comprises a contractile tail with a capsid size ranging from 85 nm-95 nm in diameter;
- and
- (d) the genomic size of the bacteriophage is about 190,000 bp to 230,000 bp.
Dependencies are inferred from the claim text.