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.
Claims9
A method of preventing or reducing symptoms or disease associated with Xylella fastidiosa in a plant, comprising contacting said plant with particles of at least one virulent bacteriophage, wherein Xylella fastidiosa and/or Xanthomonas axonopodis are hosts of the bacteriophage, wherein the bacteriophage belongs to the Myoviridae family, and wherein the bacteriophage displays the following characteristics:
- (a) the bacteriophage is capable of lysing said Xylella fastidiosa and/or Xanthomonas axonopodis 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;
- (d) the genomic size of the bacteriophage is about 190,000 bp to 230,000 bp;
- and
- (e) the bacteriophage prevents or reduces symptoms associated with Pierce's Disease in a plant or plants.
A method of preventing or reducing symptoms or disease associated with Xylella fastidiosa in a plant, comprising contacting said plant with particles of at least one virulent bacteriophage, wherein Xylella fastidiosa and/or Xanthomonas axonopodis are hosts of the bacteriophage, wherein the bacteriophage have been deposited under ATCC Accession Numbers ATCC PTA-122743 and ATCC PTA-122742.
Dependencies are inferred from the claim text.