Pioneer Hi-bred International, Inc.

Glenn S Cole

Igor Falak

Christopher Jay Scelonge

Dennis L Bidney

David George Charne

Mark K Mancl

Katherine A P Nazarian

Thomas C Heaton

Herbert J Schmidt

Barry A Martin

Jan P Hazebroek

Katherine A Nazarian

Methods for increasing resistance in plants to pathogens by the expression of a hydrogen peroxide/reactive oxygen species producing enzyme or an oxalate degrading enzyme. The present invention relates to a method of producing a pathogen resistant hybrid plant by crossing the appropriate transgenic expressing a hydrogen peroxide/reactive oxygen species producing enzyme or an oxalate degrading enzyme with pathogen tolerant lines or inbreds obtained through conventional genetic manipulations, or by transformation of tolerant plants or plant tissues with a hydrogen peroxide/reactive oxygen species producing gene or by altering the expression of an endogenase hydrogen peroxide/reactive oxygen species producing gene. The synergistic effect of expression of a hydrogen peroxide/reactive oxygen species producing enzyme or an oxalate degrading enzyme in a tolerant background gives significant and unexpectedly high resistance to the pathogens.

Production of pathogen resistant plants

An inbred sunflower line, designated PHA305, the plants and seeds of inbred sunflower line PHA305, methods for producing a sunflower plant either inbred or hybrid, produced by crossing the inbred sunflower line PHA305 with itself or with another sunflower plant, and hybrid sunflower seeds and plants produced by crossing the inbred line PHA305 with another sunflower line or plants and to methods for producing a sunflower plant containing in its genetic material one or more transgenes and to the transgenic sunflower plants produced by that method. This invention also relates to inbred sunflower lines derived from the inbred sunflower line PHA305, to methods for producing other inbred sunflower lines derived from inbred sunflower line PHA305, and to the inbred sunflower lines derived by the use of those methods.

Inbred sunflower line PHA305

An inbred sunflower line, designated PHA344, the plants and seeds of inbred sunflower line PHA344, methods for producing a sunflower plant either inbred or hybrid, produced by crossing the inbred sunflower line PHA344 with itself or with another sunflower plant, and hybrid sunflower seeds and plants produced by crossing the inbred line PHA344 with another sunflower line or plants and to methods for producing a sunflower plant containing in its genetic material one or more transgenes and to the transgenic sunflower plants produced by that method. This invention also relates to inbred sunflower lines derived from the inbred sunflower line PHA344, to methods for producing other inbred sunflower lines derived from inbred sunflower line PHA344, and to the inbred sunflower lines derived by the use of those methods.

Inbred sunflower line PHA344

An inbred sunflower line, designated PHA232, the plants and seeds of inbred sunflower line PHA232, methods for producing a sunflower plant produced by crossing the inbred line PHA232 with itself or with another sunflower plant, and hybrid sunflower seeds and plants produced by crossing the inbred line PHA232 with another sunflower line or plant.

Inbred sunflower line PHA232

Sunflower plants, seeds capable of forming the same, and a novel endogenous vegetable oil derived from such sunflower seeds are provided. The plants have the ability to yield an endogenous vegetable oil wherein the levels of palmitic acid and oleic acid are provided in an atypical combination via genetic control. The concentration of palmitic acid in the endogenous oil constitutes at least 20 (e.g., approximately 20 to 45) percent by weight of the total fatty acid content, and the concentration of oleic acid in the oil constitutes at least 45 (e.g., approximately 45 to 65) percent by weight of the total fatty acid content in the absence of hydrogenation or other chemical or physical modification. It was found that the plants of the present invention can be formed through the combination (as described) of genetic determinants that were found to be present in the Pervenets sunflower and the H-55-9-2-1 or H-55-9-2-2 sunflower. The novel endogenous oil of the present invention is particularly useful, inter alia, in the production of margarine, or a cocoa butter equivalent.

Endogenous vegetable oil derived from helianthus annuus seeds wherein

According to the invention, there is provided a hybrid sunflower plant, designated as 63A51, produced by crossing two Pioneer Hi-Bred International, Inc. proprietary inbred sunflower lines. This invention relates to the hybrid seed 63A51, the hybrid plant produced from the seed, and variants, mutants, and trivial modifications of hybrid 63A51.

Hybrid sunflower plant and seed (63A51)

An inbred sunflower line, designated PHA262, the plants and seeds of inbred sunflower line PHA262, methods for producing a sunflower plant produced by crossing the inbred line PHA262 with itself or with another sunflower plant, and hybrid sunflower seeds and plants produced by crossing the inbred line PHA262 with another sunflower line or plant.

Inbred sunflower line PHA262

Helianthus annuus bearing an endogenous oil wherein the levels of

Sunflower seed, plants and oil are described which have a total level of saturated fatty acids equal to 6% or less relative to the total fatty acid content, a total level of stearic acid less than 1% of the total fatty acid content, and a total level of palmitic acid less than 3% of the total fatty acid content.

Growing community of inventors

Woodland, CA, United States of America

Glenn S Cole