Methods for enhancing disease resistance in plants
AssigneePioneer Hi-Bred International, Inc.
InventorsSteven Briggs, Carl R. Simmons, John T. Tossberg
Life of this patent
Estimating the term…
Abstract
Compositions and methods for enhancing disease resistance in plants are provided. The method involves transforming a plant with an avirulence gene or alternatively with an avirulence gene and the complementing resistance gene. A pathogen inducible promoter or alternatively a weak constitutive promoter is used to control the desired level of disease control in the plant. Transformed plants, plant cells, tissues, and seed are also provided having enhanced disease resistance.
Claims12
A method for creating or enhancing disease resistance in a maize plant to Fusarium, said method comprising transforming said plant with a DNA construct comprising the coding sequence of the AvrRxv gene operably linked to a pathogen inducible promoter, wherein the AvrRxv gene product encoded by said coding sequence is expressed at a level sufficient to induce Fusarium resistance, and regenerating stably transformed plants with created or enhanced disease resistance to Fusarium.
A method for enhancing disease resistance to Fusarium in a maize plant, said method comprising transforming a maize plant cell with a DNA construct comprising the coding sequence of the AvrRxv gene operably linked to a pathogen inducible promoter, wherein the AvrRxv gene product encoded by said coding sequence is expressed at a level sufficient to induce Fusarium resistance;
- and regenerating a stably transformed plant with enhanced disease resistance to Fusarium, wherein said plant also expresses the Rxv resistance gene product that interacts with the AvrRxv gene product encoded by said coding sequence, wherein interaction of the Rxv resistance gene product with AvrRxv gene product causes a hypersensitive response.
A maize plant stably transformed with a DNA construct comprising the coding sequence of the AvrRxv gene operably linked to a pathogen inducible promoter, wherein said plant expresses the AvrRxv gene product encoded by said coding sequence at a level sufficient to induce Fusarium resistance.
A maize plant stably transformed with a DNA construct comprising the coding sequence of the AvrRxv gene operably linked to a pathogen inducible promoter, wherein said plant expresses the AvrRxv gene product encoded by said coding sequence at a level sufficient to induce Fusarium resistance, wherein said plant also expresses the Rxv resistance gene product that interacts with the AvrRxv gene product encoded by said coding sequence, wherein interaction of the Rxv resistance gene product with the AvrRxv gene product causes a hypersensitive response.
Dependencies are inferred from the claim text.