Patents by Inventor Xu Hu

Xu Hu 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).

  • Publication number: 20110191903
    Abstract: Methods for identifying one or more amino acid substitutions in an oxalate oxidase (OXOX) variant polypeptide that confer maintained or increased OXOX activity are described herein. Methods and compositions for increasing a plant's resistance to a pathogen using the modified OXOX variant polypeptides are provided. Transformed plants, plant cell, tissues, seed, and expression vectors are also provided.
    Type: Application
    Filed: December 30, 2010
    Publication date: August 4, 2011
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: James Joseph English, Xu Hu, Azalea Sukfun Ong, Daniel J. Thorpe, Gusui Wu
  • Publication number: 20110145953
    Abstract: The invention provides novel molecular genetic markers in soybean, where the markers are useful, for example, in the marker-assisted selection of gene alleles that impart disease-resistance, thereby allowing the identification and selection of a disease-resistant plant. The markers also find use in positional cloning of disease-resistance genes.
    Type: Application
    Filed: February 25, 2011
    Publication date: June 16, 2011
    Inventors: Michael Godwin, Feng Han, Alec A. Hayes, Xu Hu, Soon-Chun Jeong, Guihua Lu, M.A. Saghai Maroof
  • Patent number: 7919675
    Abstract: The invention provides novel molecular genetic markers in soybean, where the markers are useful, for example, in the marker-assisted selection of gene alleles that impart disease-resistance, thereby allowing the identification and selection of a disease-resistant plant. The markers also find use in positional cloning of disease-resistance genes.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: April 5, 2011
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Michael Godwin, Feng Han, Alec A. Hayes, Xu Hu, Soon-Chun Jeong, Guihua Lu, M. A. Saghai Maroof
  • Publication number: 20100132067
    Abstract: The invention provides novel molecular genetic markers in soybean, where the markers are useful, for example, in the marker-assisted selection of gene alleles that impart disease-resistance, thereby allowing the identification and selection of a disease-resistant plant. The markers also find use in positional cloning of disease-resistance genes.
    Type: Application
    Filed: October 1, 2009
    Publication date: May 27, 2010
    Applicants: PIONEER HI-BRED INTERNATIONAL, INC., VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.
    Inventors: MICHAEL GODWIN, FENG HAN, ALEC A. HAYES, XU HU, SOON-CHUN JEONG, GUIHUA LU, M.A. SAGHAI MAROOF
  • Patent number: 7642403
    Abstract: The invention provides novel molecular genetic markers in soybean, where the markers are useful, for example, in the marker-assisted selection of gene alleles that impart disease-resistance, thereby allowing the identification and selection of a disease-resistant plant. The markers also find use in positional cloning of disease-resistance genes.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: January 5, 2010
    Assignees: Pioneer Hi-Bred International, Inc., Virginia Tech Intellectual Properties, Inc.
    Inventors: Michael Godwin, Feng Han, Alec A. Hayes, Xu Hu, Soon-Chun Jeong, Guihua Lu, M. A. Saghai Maroof
  • Patent number: 7560615
    Abstract: This invention relates to an isolated isoflavone synthase 1 (IFS1) promoter nucleic acid fragment. The invention also relates to the construction of chimeric genes comprising all or a portion of the IFS1 promoter directing the expression of transgenes, in sense or antisense orientation.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: July 14, 2009
    Assignees: EI, Pioneer Hi-Bred International
    Inventors: Joan T. Odell, Xiaodan Yu, Xu Hu, Ghihua Lu
  • Patent number: 7504558
    Abstract: The present invention provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions include a novel nucleotide sequence for a root-preferred and inducible promoter for the gene encoding a soybean ripening-related protein. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequences disclosed herein is provided. The method comprises stably incorporating into the genome of a plant cell a nucleotide sequence operably linked to the root-preferred promoter of the present invention and regenerating a stably transformed plant that expresses the nucleotide sequence.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: March 17, 2009
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Xu Hu, Guihua Lu
  • Publication number: 20070192897
    Abstract: The present invention provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions include a novel nucleotide sequence for a root-preferred and inducible promoter for the gene encoding a soybean ripening-related protein. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequences disclosed herein is provided. The method comprises stably incorporating into the genome of a plant cell a nucleotide sequence operably linked to the root-preferred promoter of the present invention and regenerating a stably transformed plant that expresses the nucleotide sequence.
    Type: Application
    Filed: November 3, 2006
    Publication date: August 16, 2007
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: Xu Hu, Guihua Lu
  • Patent number: 7196247
    Abstract: This invention relates to an isolated isoflavone synthase 1 (IFS1) promoter nucleic acid fragment. The invention also relates to the construction of chimeric genes comprising all or a portion of the IFS1 promoter directing the expression of transgenes, in sense or antisense orientation.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: March 27, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Joan T. Odell, Xiaodan Yu, Xu Hu, Guihua Lu
  • Patent number: 7193136
    Abstract: The present invention provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions include a novel nucleotide sequence for a root-preferred and inducible promoter for the gene encoding a soybean dirigent protein. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequences disclosed herein is provided. The method comprises stably incorporating into the genome of a plant cell a nucleotide sequence operably linked to the root-preferred promoter of the present invention and regenerating a stably transformed plant that expresses the nucleotide sequence.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: March 20, 2007
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Xu Hu, Guihua Lu
  • Publication number: 20060212966
    Abstract: The present invention provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions include a novel nucleotide sequence for a root-preferred and inducible promoter for the gene encoding a soybean dirigent protein. A method for expressing a heterologous nucleotide sequence in a plant using the promoter sequences disclosed herein is provided. The method comprises stably incorporating into the genome of a plant cell a nucleotide sequence operably linked to the root-preferred promoter of the present invention and regenerating a stably transformed plant that expresses the nucleotide sequence.
    Type: Application
    Filed: March 21, 2006
    Publication date: September 21, 2006
    Inventors: Xu Hu, Guihua Lu
  • Patent number: 7078589
    Abstract: The present invention relates to nematode-regulated promoter and polypeptide-encoding nucleotide sequences and their use in creating or enhancing nematode-resistance in plants. Nucleic acid molecules comprising a nematode-resistance sequence operably linked to a nematode-regulated promoter and vectors, plant cells, plants, and transformed seeds containing such constructs are provided. Methods for the use of such constructs in repressing or inducing expression of a nematode-resistance sequence in a plant are also provided. In addition, methods are provided for conferring or improving nematode resistance in plants by repression or induction of nematode-resistance sequences.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: July 18, 2006
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Xu Hu, Guihua Lu
  • Patent number: 7041873
    Abstract: The present invention relates to nematode-regulated promoter sequences and their use in creating or enhancing nematode-resistance in plants. Nucleic acid molecules comprising a heterologous nucleotide sequence operably linked to a nematode-regulated promoter and vectors, plant cells, plants, and transformed seeds containing such constructs are provided. Methods for the creation and use of such promoters in repressing or inducing expression of a heterologous nucleotide sequence in a plant, as well as methods for creating or enhancing nematode-resistance in plants by such repression or induction of heterologous nucleotide sequences by nematode-regulated promoters are also provided.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: May 9, 2006
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Xu Hu, Guihua Lu, Richard L. Ruff, Wolfgang Schuh
  • Publication number: 20060041960
    Abstract: This invention relates to an isolated isoflavone synthase 1 (IFS1) promoter nucleic acid fragment. The invention also relates to the construction of chimeric genes comprising all or a portion of the IFS1 promoter directing the expression of transgenes, in sense or antisense orientation.
    Type: Application
    Filed: November 1, 2005
    Publication date: February 23, 2006
    Inventors: Joan Odell, Xiaodan Yu, Guihua Lu, Xu Hu
  • Publication number: 20060041955
    Abstract: The invention provides novel molecular genetic markers in soybean, where the markers are useful, for example, in the marker-assisted selection of gene alleles that impart disease-resistance, thereby allowing the identification and selection of a disease-resistant plant. The markers also find use in positional cloning of disease-resistance genes.
    Type: Application
    Filed: August 19, 2005
    Publication date: February 23, 2006
    Applicants: Pioneer Hi-Bred International, Inc., Virginia Tech Intellectual Properties, Inc.
    Inventors: Michael Godwin, Feng Han, Alec Hayes, Xu Hu, Soon-Chun Jeong, Guihua Lu, M. A. Maroof
  • Publication number: 20050070697
    Abstract: The present invention relates to nematode-regulated polypeptides, nucleotide sequences encoding the same and regulatory elements and their use in creating or enhancing pathogen resistance in plants. Nucleic acid constructs comprising a nematode-control sequence operably linked to a promoter, or other nucleotide sequence operably linked to a nematode specific regulatory region are disclosed as well as vectors, plant cells, plants, and transformed seeds containing such constructs are provided. Methods for the use of such constructs in repressing or inducing expression of a nematode-control sequences in a plant are also provided. In addition, methods are provided for conferring or improving pathogen resistance in plants by repression or induction of nematode-control sequences or by spatially and temporally directing expression to pathogen invasion.
    Type: Application
    Filed: September 30, 2003
    Publication date: March 31, 2005
    Inventors: Xu Hu, Guihua Lu
  • Publication number: 20040248304
    Abstract: The present invention relates to nematode-regulated promoter and polypeptide-encoding nucleotide sequences and their use in creating or enhancing nematode-resistance in plants. Nucleic acid molecules comprising a nematode-resistance sequence operably linked to a nematode-regulated promoter and vectors, plant cells, plants, and transformed seeds containing such constructs are provided. Methods for the use of such constructs in repressing or inducing expression of a nematode-resistance sequence in a plant are also provided. In addition, methods are provided for conferring or improving nematode resistance in plants by repression or induction of nematode-resistance sequences.
    Type: Application
    Filed: April 30, 2004
    Publication date: December 9, 2004
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: Xu Hu, Guihua Lu
  • Publication number: 20040111761
    Abstract: Compositions and methods to aid in protecting plants from invading pathogenic organisms are provided. The compositions of the invention comprise anti-pathogenic genes, including 5′ regulatory sequences in the promoter, and proteins encoded by the anti-pathogenic genes. The compositions find use in methods for reducing or eliminating damage to plants caused by plant pathogens. Transformed plants, plant cells, tissues, and seed having enhanced disease resistance are also provided.
    Type: Application
    Filed: August 7, 2003
    Publication date: June 10, 2004
    Applicants: Pioneer Hi-Bred International, Inc., CuraGen Corporation
    Inventors: Dennis L. Bidney, Jon Duvick, Xu Hu, Guihua Lu, Oswald R. Crasta
  • Publication number: 20040073971
    Abstract: Compositions and methods to aid in protecting plants from invading pathogenic organisms are provided. The compositions of the invention comprise anti-pathogenic genes, including 5′ regulatory sequences in the promoter, and proteins encoded by the anti-pathogenic genes. The compositions find use in methods for reducing or eliminating damage to plants caused by plant pathogens. Transformed plants, plant cells, tissues, and seed having enhanced disease resistance are also provided.
    Type: Application
    Filed: August 7, 2003
    Publication date: April 15, 2004
    Applicants: Pioneer Hi-Bred International, Inc., CuraGen Corporation
    Inventors: Dennis L. Bidney, Jon Duvick, Xu Hu, Guihua Lu, Oswald R. Crasta
  • Patent number: 6709865
    Abstract: Methods and compositions for modulating development and defense response are provided. Nucleotide sequences encoding a LOX protein are provided. Nucleotide sequences comprising the LOX promoter are also provided. The sequences can be used in expression cassettes for modulating development, developmental pathways, and the plant defense response. Transformed plants, plant cells, tissues, and seed are also provided.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: March 23, 2004
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Dennis L. Bidney, Jonathan P. Duvick, Carol Hendrick, Xu Hu, Guihua Lu, Oswald R. Crasta