Patents by Inventor Shoba Sivasankar

Shoba Sivasankar 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: 9416366
    Abstract: The invention provides isolated maize EIN3, EBF1 and EIN5 nucleic acids and encoded proteins which are associated with ethylene signaling in plants. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: August 16, 2016
    Assignee: PIONEER HI-BRED INTERNATIONAL INC
    Inventors: Kellie Reimann, Shoba Sivasankar
  • Patent number: 9024141
    Abstract: The present invention provides polynucleotides and related polypeptides of the ZmERECTA gene family. The invention provides nucleic acid sequences for the Zm ERECTA genes. ZmERECTA is responsible for controlling plant growth, organ size and yield in crop plants.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: May 5, 2015
    Assignee: Pioneer Hi Bred International Inc
    Inventors: Mei Guo, Mary Rupe, Carl Simmons, Shoba Sivasankar
  • Patent number: 8716553
    Abstract: The present invention provides compositions and methods for regulating expression of nucleotide sequences in a plant. Compositions comprise novel nucleic acid sequences encoding a transcriptional activator involved in modulating gene expression in response to abiotic stress such as cold or drought. Methods for expressing the nucleic acid sequence in a plant and improving cold and/or drought tolerance of plants are also provided.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: May 6, 2014
    Assignee: Pioneer Hi Bred International Inc
    Inventors: Shoba Sivasankar, Lisa Newman
  • Patent number: 8614368
    Abstract: The invention provides isolated maize EIN3, ERF3, EBF1, EBF2, EIN5 nucleic acids which are associated with ethylene signaling in plants and their encoded proteins. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: December 24, 2013
    Assignee: Pioneer Hi Bred International Inc
    Inventors: Shoba Sivasankar, Kellie Reimann
  • Publication number: 20130318654
    Abstract: The invention provides isolated maize EIN3, EBF1 and EIN5 nucleic acids and encoded proteins which are associated with ethylene signaling in plants. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.
    Type: Application
    Filed: August 1, 2013
    Publication date: November 28, 2013
    Applicant: Pioneer Hi Bred International Inc
    Inventors: Kellie Reimann, Shoba Sivasankar
  • Patent number: 8362225
    Abstract: Methods and compositions for modulating plant response, development and yield under varying environmental conditions are provided. Methods employing MAPKKK are provided. The MAPKKK sequences are used in a variety of methods including modulating root development, modulating leaf and/or shoot development, modulating tolerance under abiotic stress and modulating yield. Transformed plants, plant cell, tissues, seed and expression vectors are also provided.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: January 29, 2013
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Shoba Sivasankar, Anna Lyznik, Kellie Reimann
  • Publication number: 20120124700
    Abstract: The invention provides isolated maize EIN3, ERF3, EBF1, EBF2, EIN5 nucleic acids which are associated with ethylene signaling in plants and their encoded proteins. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.
    Type: Application
    Filed: January 20, 2012
    Publication date: May 17, 2012
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Shoba Sivasankar, Kellie Reimann
  • Patent number: 8129586
    Abstract: The invention provides isolated maize EIN3, ERF3, EBF1, EBF2, EIN5 nucleic acids which are associated with ethylene signaling in plants and their encoded proteins. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: March 6, 2012
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Shoba Sivasankar, Kellie Reimann
  • Publication number: 20120011617
    Abstract: Compositions and methods for regulating expression of a polynucleotide of interest in a plant are provided. Compositions include novel nucleotide sequences comprising an isolated stress-induced promoter natively linked to the maize ZmCBF2 coding region. A method for expressing a polynucleotide of interest in a plant or plant cell, using a regulatory sequence described herein, is provided. The method may comprise transforming a plant cell to comprise a polynucleotide sequence of interest operably linked to one or more of the regulatory sequences of the present invention and regenerating a stably transformed plant from the transformed plant cell.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 12, 2012
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Shoba Sivasankar, Timothy G. Helentjaris
  • Patent number: 8088977
    Abstract: Compositions and methods for regulating expression of heterologous polynucleotide sequences in a plant are provided. Compositions are novel nucleotide sequences comprising an isolated stress-induced promoter natively linked to the maize CBF1 or CBF2 coding region. A method for expressing a heterologous polynucleotide sequence in a plant using the regulatory sequences disclosed herein is provided. The method comprises transforming a plant cell to comprise a heterologous polynucleotide sequence operably linked to one or more of the regulatory sequences of the present invention and regenerating a stably transformed plant from the transformed plant cell.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: January 3, 2012
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Shoba Sivasankar, Timothy G. Helentjaris
  • Publication number: 20110035844
    Abstract: The present invention provides polynucleotides and related polypeptides of the ZmERECTA gene family. The invention provides nucleic acid sequences for the Zm ERECTA genes. ZmERECTA is responsible for controlling plant growth, organ size and yield in crop plants.
    Type: Application
    Filed: October 25, 2010
    Publication date: February 10, 2011
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Mei Guo, Mary Rupe, Carl Simmons, Shoba Sivasankar
  • Publication number: 20110016583
    Abstract: Isolated polynucleotides and polypeptides and recombinant DNA constructs useful for conferring drought tolerance, compositions (such as plants or seeds) comprising these recombinant DNA constructs, and methods utilizing these recombinant DNA constructs. The recombinant DNA construct comprises a polynucleotide operably linked to a promoter that is functional in a plant, wherein said polynucleotide encodes a protein tyrosine phosphatase.
    Type: Application
    Filed: April 22, 2009
    Publication date: January 20, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY AND PIONEER HI-BRED INTERNATIONAL,INC.
    Inventors: Stephen M. Allen, Stanley Luck, Jeffrey Mullen, Hajime Sakai, Scott V. Tingey, Robert Wayne Williams, Shoba Sivasankar
  • Patent number: 7847158
    Abstract: The present invention provides polynucleotides and related polypeptides of the ZmERECTA gene family. The invention provides nucleic acid sequences for the Zm ERECTA genes. ZmERECTA is responsible for controlling plant growth, organ size and yield in crop plants.
    Type: Grant
    Filed: September 24, 2007
    Date of Patent: December 7, 2010
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Mei Guo, Mary Rupe, Carl Simmons, Shoba Sivasankar
  • Patent number: 7838653
    Abstract: The present invention provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions are novel nucleotide sequences for a stress-induced promoter endogenously associated with the rye CBF31 coding region. A method for expressing a heterologous nucleotide sequence in a plant or plant cell using the regulatory sequences disclosed herein is provided. The method comprises transforming a plant cell to comprise a heterologous nucleotide sequence operably linked to a regulatory sequence of the present invention and optionally regenerating a stably transformed plant from the transformed plant cell.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: November 23, 2010
    Assignee: Pioneer Hi-Bred International, Inc
    Inventor: Shoba Sivasankar
  • Publication number: 20100223695
    Abstract: The present invention provides compositions and methods for regulating expression of nucleotide sequences in a plant. Compositions comprise novel nucleic acid sequences encoding a transcriptional activator involved in modulating gene expression in response to abiotic stress such as cold or drought. Methods for expressing the nucleic acid sequence in a plant and improving cold and/or drought tolerance of plants are also provided.
    Type: Application
    Filed: March 1, 2010
    Publication date: September 2, 2010
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: SHOBA SIVASANKAR, LISA NEWMAN
  • Publication number: 20100212049
    Abstract: Methods and compositions for modulating plant development are provided. Methods employing type A Response Regulators (RR) are provided. The type A RR sequences are used in a variety of methods including modulating root development, modulating leaf and/or shoot development, modulating shoot regeneration from callus, modulating tolerance under abiotic stress, modulating yield, modulating cytokinin level/activity, and modulating plant responsiveness to cytokinin. Transformed plants, plant cell, tissues, seed, and expression vectors are also provided.
    Type: Application
    Filed: February 4, 2010
    Publication date: August 19, 2010
    Applicant: Pioneer Hi-Bred International, Inc.
    Inventors: Norbert Brugière, Robert J. Meister, Shoba Sivasankar
  • Publication number: 20100186110
    Abstract: Compositions and methods for modulating flower organ development, leaf formation, phototropism, apical dominance, fruit development, initiation of roots, and for increasing yield in a plant are provided. The compositions include a ZmRR10_p sequence. Compositions of the invention comprise amino acid sequences and nucleotide sequences selected from SEQ ID NO: 2 as well as variants and fragments thereof. Nucleotide sequences encoding the ZmRR10_p are provided in DNA constructs for expression in a plant of interest are provided for modulating the level of a ZmRR10_p sequence in a plant or a plant part are provided. The methods comprise introducing into a plant or plant part a heterologous polynucleotide comprising a ZmRR10_p sequence of the invention. The level of the ZmRR10_p polypeptide can be increased or decreased. Such method can be used to increase the yield in plants; in one embodiment, the method is used to increase grain yield in cereals.
    Type: Application
    Filed: June 1, 2008
    Publication date: July 22, 2010
    Applicant: CropDesign N.V.
    Inventors: Wesley B. Bruce, Shoba Sivasankar
  • Publication number: 20090188003
    Abstract: The present invention provides compositions and methods for regulating expression of nucleotide sequences in a plant. Compositions comprise novel polypeptides involved in modulating gene expression in response to abiotic stress such as cold or drought, and the polynucleotides encoding the polypeptides. Methods for expressing the polynucleotides in a plant and improving cold and/or drought tolerance of plants are also provided.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 23, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Shoba Sivasankar, David A. Selinger, Norbert Brugiere
  • Publication number: 20090138986
    Abstract: Compositions and methods for regulating expression of heterologous polynucleotide sequences in a plant are provided. Compositions are novel nucleotide sequences comprising an isolated stress-induced promoter natively linked to the maize CBF1 or CBF2 coding region. A method for expressing a heterologous polynucleotide sequence in a plant using the regulatory sequences disclosed herein is provided. The method comprises transforming a plant cell to comprise a heterologous polynucleotide sequence operably linked to one or more of the regulatory sequences of the present invention and regenerating a stably transformed plant from the transformed plant cell.
    Type: Application
    Filed: September 10, 2008
    Publication date: May 28, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Shoba Sivasankar, Timothy G. Helentjaris
  • Publication number: 20090133161
    Abstract: The invention provides isolated maize EIN3, ERF3, EBF1, EBF2, EIN5 nucleic acids which are associated with ethylene signaling in plants and their encoded proteins. The present invention provides methods and compositions relating to altering ethylene sensitivity in plants. The invention further provides recombinant expression cassettes, host cells, transgenic plants and antibody compositions.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 21, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Shoba Sivasankar, Kellie Reimann