Patents by Inventor Joyce R. Maddox

Joyce R. Maddox has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7241934
    Abstract: The present invention provides polynucleotides and related polypeptides of the enzyme APAO isolated from Exophiala spinifera and Rhinocladiella atrovirens. The polynucleotides may be mutated to remove glycosylation sites and cysteine residues. Additionally, the present invention provides recombinant expression cassettes, host cells, transgenic plants, and transgenic seed. The present invention also provides for polynucleotides containing both APAO and a fumonisin esterase. In addition, the present invention provides methods for producing the APAO enzyme in both prokaryotic and eukaryotic systems, methods for detecting fumonisins, and methods for identifying transformed plant cells. Methods for degrading fungal toxins in plants, grain, grain processing, silage, food crops and in animal feed are also disclosed.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: July 10, 2007
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan P. Duvick, Jacob T. Gilliam, Joyce R. Maddox, Aragula Gururaj Rao, Oswald R. Crasta, Otto Folkerts
  • Patent number: 6987212
    Abstract: The present invention provides transformed plants comprising a polynucleotide enconding amino polyol amine oxidase (APAO ) from Exophiala spinifera and a method of expressing APAO transgenic plants and seeds. In this way, transgenic plant can be produced having fumonisin degrading capability, as well as with the capability of producing the degrading enzymes.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: January 17, 2006
    Assignees: Pioneer Hi-Bred International, Inc., Curagen Corporation
    Inventors: Jonathan P. Duvick, Jacob T. Gilliam, Joyce R. Maddox, Oswald R. Crasta, Otto Folkerts
  • Patent number: 6943279
    Abstract: The present invention provides polynucleotides and related polypeptides of the enzyme APAO isolated from Exophiala spinifera and Rhinocladiella airovirens. The polynucleotides may be mutated to remove glycosylation sites and cysteine residues. Additionally, the present invention provides recombinant expression cassettes, host cells, transgenic plants, and transgenic seed. The present invention also provides for polynucleotides containing both APAO and a fumonisin esterase. In addition, the present invention provides methods for producing the APAO enzyme in both prokaryotic and eukaryotic systems, methods for detecting fumonisins, and methods for identifying transformed plant cells. Methods for degrading fungal toxins in plants, grain, grain processing, silage, food crops and in animal feed are also disclosed.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: September 13, 2005
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan P. Duvick, Jacob T. Gilliam, Joyce R. Maddox, Aragula Gururaj Rao, Oswald R. Crasta, Otto Folkerts
  • Patent number: 6835569
    Abstract: The present invention provides polynucleotides and related polypeptides of the enzyme APAO isolated from Exophiala spinifera. Additionally, the polynucleotide encoding for the APAO enzyme can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. Additionally, the present invention provides for expressing both APAO and a fumonisin esterase in a transgenic plant. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes. In addition, the present invention provides methods for producing the APAO enzyme in both prokaryotic and non-plant eukaryotic systems.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: December 28, 2004
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan P. Duvick, Jacob T. Gilliam, Joyce R. Maddox, Oswald Crasta, Otto Folkerts
  • Patent number: 6812380
    Abstract: The present invention provides nucleotide sequences encoding zearalenone detoxification polypeptides, and methods for mycotoxin detoxification using the sequences. One method comprises stably incorporating into the genome of a plant cell, a nucleotide sequence of the present invention operably linked to a heterologous promoter and regenerating a stably transformed plant that expresses the nucleotide sequence.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: November 2, 2004
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Petr Karlovsky, Edmund H. Crane, III, Jacob T. Gilliam, Joyce R. Maddox
  • Publication number: 20040168212
    Abstract: The present invention provides polynucleotides and related polypeptides of the enzyme APAO isolated from Exophiala spinifera. Additionally, the polynucleotide encoding for the APAO enzyme can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. Additionally, the present invention provides for expressing both APAO and a fumonisin esterase in a transgenic plant. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes. In addition, the present invention provides methods for producing the APAO enzyme in both prokaryotic and non-plant eukaryotic systems. Methods for detoxification in grain, grain processing, silage, food crops and in animal feed and rumen microbes are also disclosed.
    Type: Application
    Filed: July 22, 2003
    Publication date: August 26, 2004
    Applicants: Pioneer Hi-Bred International, Inc., CuraGen Corp.
    Inventors: Jonathan P. Duvick, Jacob T. Gilliam, Joyce R. Maddox, Oswald R. Crasta, Otto Folkerts
  • Patent number: 6737562
    Abstract: The present invention provides polynucleotides and related polypeptides of the enzyme APAO isolated from Exophiala spinfera and Rhinocladiella atrovirens. Additionally, the polynucleotides encoding for the APAO enzyme can be used to transform plant cells normally susceptible to Fusarium. Plants can be regenerated from the transformed plant cells.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: May 18, 2004
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan P. Duvick, Jacob T. Gilliam, Joyce R. Maddox
  • Patent number: 6670189
    Abstract: Methods for identifying organisms capable of degrading fumonisin. Fumonisin can be incorporated into culture medium for selection of organisms resistant to fumonisin and/or capable of growing on fumonisin as a sole carbon source. Using this method, several organisms have been identified. These organisms can be used to isolate the enzymes and the genes responsible for conferring fumonisin-resistance. The gene can be cloned and inserted into a suitable expression vector so that the protein can be further characterized. Additionally, the DNA encoding for fumonisin degrading enzymes can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: December 30, 2003
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan Duvick, Joyce R. Maddox, Tracy A. Rood, Xun Wang, Benjamin A. Bowen, Jacob T. Gilliam
  • Patent number: 6627797
    Abstract: The invention provides isolated maize lipoxygenase nucleic acids and their encoded proteins. The present invention provides methods and compositions relating to altering lipoxygenase concentration and/or composition of plants. The invention further provides recombinant expression cassettes, host cells, and transgenic plants.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: September 30, 2003
    Assignees: The Texas A&M University System, Pioneer Hi-Bred International, Inc.
    Inventors: Jon Duvick, Joyce R. Maddox, Nancy P. Keller
  • Publication number: 20030126636
    Abstract: The present invention provides polynucleotides and related polypeptides of the enzyme APAO isolated from Exophiala spinifera. Additionally, the polynucleotide encoding for the APAO enzyme can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. Additionally, the present invention provides for expressing both APAO and a fumonisin esterase in a transgenic plant. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes. In addition, the present invention provides methods for producing the APAO enzyme in both prokaryotic and non-plant eukaryotic systems. Methods for detoxification in grain, grain processing, silage, food crops and in animal feed and rumen microbes are also disclosed.
    Type: Application
    Filed: January 26, 2001
    Publication date: July 3, 2003
    Inventors: Jonathan P. Duvick, Jacob T. Gilliam, Joyce R. Maddox, Oswald R. Crasta, Otto Folkerts
  • Publication number: 20030073239
    Abstract: The present invention provides compositions and methods for detoxification of mycotoxins. Compositions include novel nucleotide sequences encoding zearalenone detoxification polypeptides, and biologically active variants thereof. Further provided are methods for mycotoxin detoxification using the sequences disclosed herein. One method comprises stably incorporating into the genome of a plant cell, a nucleotide sequence of the present invention operably linked to a heterologous promoter and regenerating a stably transformed plant that expresses the nucleotide sequence. An additional method comprises incorporating a nucleotide sequence of the present invention operably linked to a heterologous promoter into a microorganism and applying said microorganism to a plant or grain.
    Type: Application
    Filed: March 26, 2002
    Publication date: April 17, 2003
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: Petr Karlovsky, Edmund H. Crane, Jacob T. Gilliam, Joyce R. Maddox
  • Patent number: 6514749
    Abstract: Methods for identifying organisms capable of degrading fumonisin. Fumonisin can be incorporated into culture medium for selection of organisms resistant to fumonisin and/or capable of growing on fumonisin as a sole carbon source. Using this method, several organisms have been identified. These organisms can be used to isolate the enzymes and the genes responsible for conferring fumonisin-resistance. The gene can be cloned and inserted into a suitable expression vector so that the protein can be further characterized. Additionally, the DNA encoding for fumonisin degrading enzymes can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: February 4, 2003
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan Duvick, Joyce R. Maddox, Tracy A. Rood
  • Publication number: 20030017566
    Abstract: Methods and compositions for modulating the plant defense response are provided. Nucleotide and amino acid sequences for maize peroxidases are provided. These sequences can be used in expression cassettes for modulating plant defense response, increasing plant disease resistance and increasing plant stalk strength. These sequences can also be used in methods of selecting or breeding for plants with increased disease resistance. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Application
    Filed: January 16, 2002
    Publication date: January 23, 2003
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: Jon P. Duvick, Joyce R. Maddox, Pedro A. Navarro Acevedo, Carl R. Simmons
  • Patent number: 6239330
    Abstract: Methods for identifying organisms capable of degrading fumonisin. Fumonisin can be incorporated into culture medium for selection of organisms resistant to fumonisin and/or capable of growing on fumonisin as a sole carbon source. Using this method, several organisms have been identified. These organisms can be used to isolate the enzymes and the genes responsible for conferring fumonisin-resistance. The gene can be cloned and inserted into a suitable expression vector so that the protein can be further characterized. Additionally, the DNA encoding for fumonisin degrading enzymes can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: May 29, 2001
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan Duvick, Joyce R. Maddox, Xun Wang
  • Patent number: 6229071
    Abstract: Methods for identifying organisms capable of degrading fumonisin. Fumonisin can be incorporated into culture medium for selection of organisms resistant to fumonisin and/or capable of growing on fumonisin as a sole carbon source. Using this method, several organisms have been identified. These organisms can be used to isolate the enzymes and the genes responsible for conferring fumonisin-resistance. The gene can be cloned and inserted into a suitable expression vector so that the protein can be further characterized. Additionally, the DNA encoding for fumonisin degrading enzymes can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: May 8, 2001
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan Duvick, Joyce R. Maddox, Tracy A. Rood, Xun Wang
  • Patent number: 6211435
    Abstract: The present invention provides polynucleotides and related polypeptides of the enzyme APAO isolated from Exophiala spinifera. Additionally, the polynucleotide encoding for the APAO enzyme can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. Additionally, the present invention provides for expressing both APAO and a fumonisin esterase in a transgenic plant. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes. In addition, the present invention provides methods for producing the APAO enzyme in both prokaryotic and non-plant eukaryotic systems. Methods for detoxification in grain, grain processing, silage, food crops and in animal feed and rumen microbes are also disclosed.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: April 3, 2001
    Assignees: Pioneer Hi-Bred International, Inc., CuraGen Corporation
    Inventors: Jonathan P. Duvick, Jacob T. Gilliam, Joyce R. Maddox, Oswald R. Crasta, Otto Folkerts
  • Patent number: 6211434
    Abstract: The present invention provides polynucleotides and related polypeptides of the enzyme APAO isolated from Exophiala spinifera and Rhinocladiella atrovirens. Additionally, the polynucleotides encoding for the APAO enzyme can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. Additionally, the present invention provides for expressing both APAO and a fumonisin esterase in a transgenic plant. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes. In addition, the present invention provides methods for producing the APAO enzyme in both prokaryotic and non-plant eukaryotic systems. Methods for detoxification in grain, grain processing, silage, food crops and in animal feed and rumen microbes are also disclosed.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: April 3, 2001
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan P. Duvick, Jacob T. Gilliam, Joyce R. Maddox
  • Patent number: 6025188
    Abstract: Methods for identifying organisms capable of degrading fumonisin. Fumonisin can be incorporated into culture medium for selection of organisms resistant to fumonisin and/or capable of growing on fumonisin as a sole carbon source. Using this method, several organisms have been identified. These organisms can be used to isolate the enzymes and the genes responsible for conferring fumonisin-resistance. The gene can be cloned and inserted into a suitable expression vector so that the protein can be further characterized. Additionally, the DNA encoding for fumonisin degrading enzymes can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: February 15, 2000
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan Duvick, Joyce R. Maddox, Tracy A. Rood, Xun Wang, Benjamin A. Bowen, Jacob T. Gilliam
  • Patent number: 5792931
    Abstract: Methods for identifying organisms capable of degrading fumonisin. Fumonisin can be incorporated into culture medium for selection of organisms resistant to fumonisin and/or capable of growing on flumonisin as a sole carbon source. Using this method, several organisms have been identified. These organisms can be used to isolate the enzyme and the gene responsible for conferring fumonisin-resistance. The gene can be cloned and inserted into a suitable expression vector so that the protein can be further characterized. Additionally, the DNA encoding for furaonisin-resistance can be used to transform plant cells normally susceptible to Fusarium or other toxin-producing fungus infection. Plants can be regenerated from the transformed plant cells. In this way, a transgenic plant can be produced with the capability of degrading fumonisin, as well as with the capability of producing the degrading enzymes. Methods for detoxification in grain processing and in animal feed and rumen microbes are also disclosed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 11, 1998
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jonathan Duvick, Tracy Rood, Joyce R. Maddox, Xun Wang