Patents by Inventor Sobhana Sivasankar

Sobhana 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).

  • Publication number: 20180105824
    Abstract: Nucleotide sequences encoding DREB2 polypeptides are provided herein, along with plants and cells having increased levels of DREB2 gene expression, increased levels of DREB2 transcription factor activity, or both. Plants with increased levels of at least one DREB2 gene expression that exhibit increased yield, increased abiotic stress tolerance, or any combination of these, are provided. Methods for increasing yield, and abiotic stress tolerance in plants, by modulating DREB2 gene expression or activity, are also provided.
    Type: Application
    Filed: March 22, 2016
    Publication date: April 19, 2018
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: CARL SIMMONS, SOBHANA SIVASANKAR
  • Patent number: 9546377
    Abstract: Methods are described for the identification of genes useful for conferring tolerance in plants to abiotic stress. Transgenic plants and seeds comprising the stress tolerant genes are also described. Methods to monitor the growth rate of the transgenic plants under stressed or non-stressed conditions are also described.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: January 17, 2017
    Assignees: E I DU PONT DE NEMOURS AND COMPANY, PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Bindu Andreuzza, Milo Aukerman, Jason L. Brothers, Norbert Brugiere, Mai Komatsu, Ratna Kumria, Xiao-Yi Li, Cheng Lu, Amitabh Mohanty, Hajime Sakai, James J. Saylor, Sobhana Sivasankar, Graziana Taranino, Robert Wayne Williams
  • Patent number: 9499831
    Abstract: Polynucleotide molecules encoding transcription factors, promoter elements, binding partners and methods of use in increasing drought tolerance, yield, and abiotic stress tolerance are disclosed. ERF transcription factors and Cor410b promoter sequences are disclosed.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: November 22, 2016
    Assignees: PIONEER HI-BRED INTERNATIONAL, INC., E. I. Du Pont De Nemours & Company
    Inventors: Sergiy Lopato, Sobhana Sivasankar, Maria Hrmova, Peter Langridge, Omid Eini Gandomani, Scott V Tingey
  • Publication number: 20160312238
    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: July 12, 2016
    Publication date: October 27, 2016
    Inventors: Kellie Reimann, SOBHANA SIVASANKAR
  • Publication number: 20160264988
    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 RING-H2 polypeptide.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 15, 2016
    Inventors: Stephen M. ALLEN, Honor Renee LAFITTE, Stanley LUCK, Hajime SAKAI, Sobhana SIVASANKAR, Robert W. WILLIAMS
  • Publication number: 20160060647
    Abstract: Isolated polynucleotides, polypeptides and recombinant DNA constructs useful for conferring drought tolerance are disclosed. The recombinant DNA construct comprises a promoter that is functional in a plant operably linked to a polynucleotide that encodes a PAP, a DTP25 or a DTP46 polypeptide. Also disclosed are methods of utilizing the recombinant DNA construct and compositions (such as plants or seeds) comprising the recombinant DNA construct.
    Type: Application
    Filed: October 16, 2013
    Publication date: March 3, 2016
    Applicants: PIONEER HI-BRED INTERNATIONAL, INC., E I DU PONT DE NEMOURS AND COMPANY
    Inventors: STEPHEN M. ALLEN, HONOR RENEE LAFITTE, STANLEY LUCK, JEFFREY MULLEN, HAJIME SAKAI, RINKU RANJAN SARANGI, ABHIMAN SARASWATHI, SOBHANA SIVASANKAR, SCOTT V. TINGEY, ROBERT W. WILLIAMS
  • Publication number: 20160024513
    Abstract: A truncated stress-responsive transcription factor can be overexpressed without causing unfavorable pleiotropic effects. The truncation may result in deletion of a nuclear localization signal. The truncation may result in deletion of one or more regulatory motifs. The truncated transcription factor may be expressed under the control of a constitutive or tissue-preferred promoter. The transcription factor may be from maize.
    Type: Application
    Filed: March 13, 2014
    Publication date: January 28, 2016
    Inventors: MULU AYELE, DONGSHENG FENG, JOANNE HUNT, KEITH ROESLER, DAVID SELINGER, SOBHANA SIVASANKAR
  • Publication number: 20160017349
    Abstract: Methods and compositions for maize target gene suppression and improving an agronomic trait through microRNAs or target gene modulation are disclosed. Polynucleotide constructs useful for gene silencing, or upregulation or modulation as well as cells, plants and seeds comprising the polynucleotides and methods for using microRNAs to silence a target gene are also described.
    Type: Application
    Filed: March 13, 2014
    Publication date: January 21, 2016
    Inventors: Mule Ayele, KEVIN HAYES, CARL SIMMONS, SOBHANA SIVASANKAR, JOHN VAN HEMERT, BING-BING WANG
  • Publication number: 20160002648
    Abstract: The present disclosure provides methods to increase crop yield utilizing transgenic genes controlling plant growth and yield. The specific genes can be used to increase tissue growth and abiotic stress tolerance. Plants, plant progeny, seeds and tissues created by these methods are also described. Polynucleotides encoding the sequences are provided for expression in a plant of interest. Expression cassettes, plants, plant cells, plant parts and seeds comprising the sequences of the disclosure are further provided. In specific embodiments, the polynucleotide is operably linked to a constitutive promoter.
    Type: Application
    Filed: March 3, 2014
    Publication date: January 7, 2016
    Inventors: MEI GUO, KEVIN HAYES, BROOKE PETERSON-BURCH, CARL SIMMONS, SOBHANA SIVASANKAR, JIJUN ZOU
  • Publication number: 20150284739
    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 ferrochelatase.
    Type: Application
    Filed: March 16, 2015
    Publication date: October 8, 2015
    Inventors: Stephen M Allen, Sobhana Sivasankar, Stanley Luck, Jeffrey Mullen, Hajime Sakai, Scott V. Tingey, Robert Wayne Williams
  • Publication number: 20150197768
    Abstract: Polynucleotide molecules encoding transcription factors, promoter elements, binding partners and methods of use in increasing drought tolerance, yield, and abiotic stress tolerance are disclosed. ERF transcription factors and Cor410b promoter sequences are disclosed.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 16, 2015
    Inventors: Sergiy Lopato, Sobhana Sivasankar, Maria Hrmova, Peter Langridge, Omid Eini Gandomani, Scott V Tingey
  • Patent number: 8993847
    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 ferrochelatase.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: March 31, 2015
    Assignees: Pioneer Hi Bred International Inc., E I du Pont de Nemours and Company
    Inventors: Stephen M. Allen, Stanley Luck, Jeffrey Mullen, Hajime Sakai, Sobhana Sivasankar, Scott V. Tingey, Robert Wayne Williams
  • Publication number: 20140304857
    Abstract: A truncated stress-responsive transcription factor can be overexpressed without causing unfavorable pleiotropic effects. The truncation may result in deletion of a nuclear localization signal. The truncation may result in deletion of one or more regulatory motifs. The truncated transcription factor may be expressed under the control of a constitutive or tissue-preferred promoter. The transcription factor may be from maize.
    Type: Application
    Filed: March 13, 2014
    Publication date: October 9, 2014
    Applicant: PIONEER HI BRED INTERNATIONAL INC
    Inventors: MULU AYELE, Dongsheng Feng, Joanne Hunt, Keith Roesler, David Selinger, Sobhana Sivasankar
  • Publication number: 20140304854
    Abstract: Methods are described for the identification of genes useful for conferring tolerance in plants to abiotic stress. Transgenic plants and seeds comprising the stress tolerant genes are also described. Methods to monitor the growth rate of the transgenic plants under stressed or non-stressed conditions are also described.
    Type: Application
    Filed: October 29, 2012
    Publication date: October 9, 2014
    Applicant: PIONEER HI-BRED INTERNATIONAL INC.
    Inventors: Bindu Andreuzza, Milo Aukerman, Jason L. Brothers, Norbert Brugiere, Mai Komatsu, Ratna Kumria, Xiao-Yi Li, Cheng Lu, Amitabh Mohanty, Hajime Sakai, James J. Saylor, Sobhana Sivasankar, Graziana Taranino, Robert Wayne Williams
  • Publication number: 20120180159
    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 ferrochelatase.
    Type: Application
    Filed: March 27, 2012
    Publication date: July 12, 2012
    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, Sobhana Sivasankar, Scott V. Tingey, Robert Wayne Williams
  • Patent number: 8158859
    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 ferrochelatase.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: April 17, 2012
    Assignees: E I du Pont de Nemours and Company, Pioneer Hi Bred International Inc
    Inventors: Stephen M. Allen, Stanley Luck, Jeffrey Mullen, Hajime Sakai, Sobhana Sivasankar, Scott V. Tingey, Robert Wayne Williams
  • Publication number: 20110010798
    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 ferrochelatase.
    Type: Application
    Filed: September 22, 2010
    Publication date: January 13, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY PIONEER HI BRED INTERNATIONAL INC
    Inventors: Stephen M. Allen, Stanley Luck, Jeffrey Mullen, Hajime Sakai, Sobhana Sivasankar, Scott V. Tingey, Robert Wayne Williams
  • Patent number: 7812223
    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 ferrochelatase.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: October 12, 2010
    Assignees: E. I. du Pont de Nemours and Company, Pioneer Hi Bred International Inc
    Inventors: Stephen M. Allen, Stanley Luck, Jeffrey Mullen, Hajime Sakai, Sobhana Sivasankar, Scott V. Tingey, Robert Wayne Williams
  • Publication number: 20090307800
    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: Application
    Filed: June 10, 2009
    Publication date: December 10, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Sobhana Sivasankar, Anna Lyznik, Kellie Reimann
  • Publication number: 20090235392
    Abstract: Isolated polynucleotides that encode cytokinin-sensing histidine kinase polypeptides, and the encoded polypeptides, are described. Expression cassettes comprising the polynucleotides of the invention and plants and plant cells that are transformed with the polynucleotides are described. Methods of using the cytokinin-sensing histidine kinase polypeptides and polynucleotides to modulate histidine kinase activity and/or histidine kinase levels in plants and plant cells are further described.
    Type: Application
    Filed: May 12, 2009
    Publication date: September 17, 2009
    Applicant: PIONEER HI-BRED INTERNATIONAL, INC.
    Inventors: Robert J Meister, Sobhana Sivasankar