Involving Particle-mediated Transfecion (e.g., Biolistic, Etc.) Patents (Class 800/293)
  • Patent number: 7199285
    Abstract: The present invention provides methods of modulating abscisic acid signal transduction in plants. The method comprise introducing into the plant a recombinant expression cassette comprising a promoter operably linked to an ABH1 polynucleotide.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: April 3, 2007
    Assignee: University of California, San Diego
    Inventors: Julian Schroeder, Veronique Hugouvieux, June M. Kwak
  • Patent number: 7169981
    Abstract: According to the invention, there is provided seed and plants of the corn variety designated I015036. This invention thus relates to the plants, seeds and tissue cultures of the variety I015036, and to methods for producing a corn plant produced by crossing a corn plant of variety I015036 with itself or with another corn plant, such as a plant of another variety. This invention further relates to corn seeds and plants produced by crossing plants of variety I015036 with plants of another variety, such as another inbred line, and to crosses with related species. This invention further relates to the inbred and hybrid genetic complements of plants of variety I015036, and also to the SSR and isozyme typing profiles of corn variety I015036.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: January 30, 2007
    Assignee: DeKalb Genetics Corporation
    Inventor: Thomas B. Carlson
  • Patent number: 7166768
    Abstract: Embryogenic cotton suspension cultures can be transformed by elongated, needle-like structures called “whiskers”. The process comprises the agitation of cotton suspension cultures in the presence of DNA and whiskers, whereby DNA uptake and integration thereof is facilitated.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: January 23, 2007
    Assignee: Dow AgroSciences LLC
    Inventors: Bridget D. Kosegi, Jeffrey R. Beringer, Asha Mehra Palta, Joseph F. Petolino, Raghav Ram
  • Patent number: 7161064
    Abstract: Methods and compositions for the efficient transformation of duckweed are provided. The methods involve transformation by ballistic bombardment. In this manner, any gene or nucleic acid of interest can be introduced and expressed in duckweed plants. Transformed duckweed plants, cells, tissues are also provided. Transformed duckweed plant tissue culture and methods of producing recombinant proteins and peptides from transformed duckweed plants are also disclosed.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: January 9, 2007
    Assignee: North Carolina State University
    Inventors: Anne-Marie Stomp, Nirmala Rajbhandari
  • Patent number: 7132289
    Abstract: A method for introducing a foreign matter into a cell, includes the steps of placing a small particle carrying a foreign matter at a part of a cell surface of a living cell, boring a hole in a cell wall and/or a cell membrane by irradiating and treating said part of the cell surface with a laser beam, and introducing the foreign matter into the living cell.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: November 7, 2006
    Assignee: Osaka University
    Inventors: Akio Kobayashi, Kiichi Fukui, Satoshi Harajima, Eiichiro Fukusaki, Shinichiro Kajiyama, Shinya Okuda, Takeshi Shoji
  • Patent number: 7129394
    Abstract: The present invention relates to Production of transgenic tea (Camellia sinensis (L.) O. Kuntze) through biolistic.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: October 31, 2006
    Assignee: Council of Scientific and Industrial
    Inventors: Indra Sandal, Amita Bhattacharya, Paramvir Singh Ahuja
  • Patent number: 7126044
    Abstract: Nucleic acids and polypeptides were identified and isolated from Poncirus trifoliata, a sexually compatible close relative of Citrus. These sequences, when present in a plant genome, result in the expression of resistance to CTV infection. Several methods of transforming citrus plants to produce citrus plants that are resistant to the broad genetic diversity of CTV strains are described. Transformed CTV-resistant germplasm and breeding lines can be used in conventional breeding programs to create new cultivars that carry and express the resistance genes.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: October 24, 2006
    Assignee: University of Florida Research Foundation
    Inventors: Frederick G. Gmitter, Jr., Zhanao Deng, Hongbin Zhang
  • Patent number: 7122715
    Abstract: The present invention relates generally to transgenic plants. More specifically, it relates to methods and compositions for the introduction of DNA using circular molecules that are not able to replicate outside a host cell. The circular molecules contain site-specific recombination sequences and allow transformation of host cells with DNA comprising only selected sequences of interest.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: October 17, 2006
    Assignee: Monsanto Technology LLC
    Inventors: John A. Korte, Brenda A. Lowe
  • Patent number: 7119255
    Abstract: Provided is a nucleotide sequence of a promoter from a gene encoding a 55 kDa maize prolamin family protein. Also provided are methods that utilize the 55 kDa maize prolamin family gene promoter to express heterologous sequences in plants, expression cassettes that include the 55 kDa maize prolamin family gene promoter, and plants transformed with expression cassettes that include the 55 kDa maize prolamin family gene promoter.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: October 10, 2006
    Assignee: Syngenta Participations, AG
    Inventors: Scott Betts, Dale Wayne Skalla, Sandra Lynn Voltrath, Koen Hendrickx
  • Patent number: 7102056
    Abstract: Improved compositions and methods for transformation and regeneration of plants from embryogenic callus are disclosed that include, for example: use of an intermediate-incubation medium after callus induction to increase the competence of the transformed cells for regeneration; dim light conditions during early phases of selection; use of green callus tissue as a target for microprojectile bombardment; and media with optimized levels of phytohormones and copper concentrations.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: September 5, 2006
    Assignee: The Regents of the University of California
    Inventors: Peggy G. Lemaux, Myeong-Je Cho
  • Patent number: 7081567
    Abstract: Disclosed is a method for making a bioreactor comprising a foreign target gene, special selectable markers and Dunaliella Salina as host. It is prepared by the genetic transformation techniques that include introducing a foreign target gene into the cells of Dunaliella Salina and screening the transformed cells of Dunaliella Salina. The bioreactor of the present invention can be used as a safe and cheap production system for proteins of pharmaceutical interest including vaccines, especially oral products, in a large scale, because the cells of Dunaliella Salina are easy of genetic manipulation in preparation of the bioreactor, nontoxic and edible for humans and animals, and harmless to the environment.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: July 25, 2006
    Assignees: Zhengzhou University
    Inventors: Lexun Xue, Weidong Pan, Guozhong Jiang, Jianmin Wang
  • Patent number: 7057089
    Abstract: Methods are provided for transforming freshly isolated, immature maize embryos and for producing transgenic maize plants. The methods comprise obtaining immature embryos from a maize plant, contacting the embryos with an auxin-depleted or phytohormone-depleted transformation support medium and introducing a nucleotide construct into cells from the embryos prior to subjecting the embryos to conditions which promote embryogenic-tissue formation. The methods additionally comprise identifying or selecting transformed cells and regenerating such cells into transformed maize plants.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: June 6, 2006
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Jerome P. Ranch, Wallace A. Marsh
  • Patent number: 7049489
    Abstract: The present invention provides PeMADS2, PeMADS3, PeMADS4 and PeMADS5 for controlling floral development in orchid. The present invention also provides a protein, a vector, a cell, a protocorn, and a kit for controlling the floral development in orchid. A method for producing transgenic orchid and a transgenic orchid are provided.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: May 23, 2006
    Assignee: National Cheng Kung University
    Inventors: Hong-Hwa Chen, Wen-Chieh Tsai, Wen-Huei Chen
  • Patent number: 7041876
    Abstract: The present invention relates to a chimeric gene that includes a first DNA molecule encoding a hypersensitive response elicitor protein or polypeptide, a promoter operably linked 5? to the first DNA molecule to induce transcription of the first DNA molecule in response to activation of the promoter by an oomycete, and a 3? regulatory region operably linked to the first DNA molecule. Also disclosed are an expression system and a host cell containing the chimeric gene. The present invention also relates to a transgenic plant resistant to disease resulting from oomycete infection, the transgenic plant including the chimeric gene, wherein the promoter induces transcription of the first DNA molecule in response to infection of the plant by an oomycete. Transgenic seeds and transgenic cultivars obtained from the transgenic plant are also disclosed. Additional aspects of the present invention include methods of making a recombinant plant cell and a transgenic plant.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: May 9, 2006
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Steven V. Beer, David W. Bauer
  • Patent number: 7015372
    Abstract: The present invention provides for the identification and cloning of functional plant centromeres in Arabidopsis. This will permit construction of stably inherited plant artificial chromosomes (PLACs) which can serve as vectors for the construction of transgenic plant and animal cells. In addition, information on the structure and function of these regions will prove valuable in isolating additional centromeric and centromere related genetic elements and polypeptides from other species.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: March 21, 2006
    Assignee: University of Chicago
    Inventors: Daphne Preuss, Gregory Copenhaver
  • Patent number: 6992237
    Abstract: This invention relates generally to the field of plant molecular biology. More specifically, this invention relates to methods and reagents for the temporal and/or spatial expression of genes that affect metabolically effective levels of cytokinins in plant seeds and related maternal tissue. This invention further relates to transgenic plants having enhanced levels of cytokinin expression wherein the transgenic plant exhibits useful characteristics, including: improved seed size, decreased tip kernel abortion, increased seed set during unfavorable environmental conditions, and stability of yield.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: January 31, 2006
    Assignee: Pioneer Hi-Bred International Inc.
    Inventors: Jeffrey E. Habben, Chris Zinselmeier, Dwight T. Tomes
  • Patent number: 6972197
    Abstract: The present invention provides for the identification and cloning of functional plant centromeres in Arabidopsis. This will permit construction of stably inherited minichromosomes which can serve as vectors for the construction of transgenic plant and animal cells. In addition, information on the structure and function of these regions will prove valuable in isolating additional centromeric and centromere related genetic elements and polypeptides from other species.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: December 6, 2005
    Assignee: The University of Chicago
    Inventors: Daphne Preuss, Gregory Copenhaver, Kevin C. Keith
  • Patent number: 6951971
    Abstract: The present invention relates to a method for conferring tolerance to salt stress and drought stress in a monocot plant including transforming the monocot plant with an expression cassette comprising at least one ABRC unit, a minimal promoter, and a DNA molecule that increases tolerance to salt stress and drought stress in plants, wherein the at least one ABRC unit, the minimal promoter, and a DNA molecule are operably linked together to permit expression of the DNA molecule. The present invention also relates to a transgenic monocot plant transformed with a DNA molecule that increases tolerance to salt stress and drought stress operably linked to at least one ABRC unit and a minimal promoter.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: October 4, 2005
    Assignees: Cornell Research Foundation, Inc., Washington University
    Inventors: Ray J. Wu, Tuan-Hua David Ho
  • Patent number: 6946587
    Abstract: Fertile transgenic Zea mays (corn) plants which stably express heterologous DNA which is heritable are disclosed along with a process for producing said plants. The process comprises the microjectile bombardment of friable embryogenic callus from the plant to be transformed. The process may be applicable to other graminceous cereal plants which have not proven stably transformable by other techniques.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: September 20, 2005
    Assignee: DeKalb Genetics Corporation
    Inventors: Ronald C. Lundquist, David A. Walters
  • Patent number: 6930224
    Abstract: The present invention is concerned with methods of producing transgenic plants, in particular poppy plants, by way of transfecting and/or regenerating plant material under specified culture conditions which prevent, reduce the rate of or delay the rise in pH of the culture medium.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: August 16, 2005
    Inventors: Philip J. Larkin, Julie Anne Chitty, Richard Ian Scott Brettell
  • Patent number: 6911586
    Abstract: A novel garden bean cultivar, designated ‘210104’, is disclosed. The invention relates to the seeds of garden bean cultivar ‘210104’, to the plants of garden bean line ‘210104’ and to methods for producing a bean plant by crossing the cultivar ‘210104’ with itself or another bean line. The invention further relates to methods for producing a bean plant containing in its genetic material one or more transgenes and to the transgenic plants produced by that method and to methods for producing other garden bean lines derived from the cultivar ‘210104’.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: June 28, 2005
    Assignee: Harris Moran Seed Company
    Inventor: Robert Gehin
  • Patent number: 6903246
    Abstract: The invention is directed to a new dehydroascorbate reductase (“DHAR”) genes from Triticum aestivum, which is useful in modulating ascorbic acid levels in plants.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: June 7, 2005
    Assignee: The Regents of the University of California
    Inventor: Daniel R. Gallie
  • Patent number: 6870081
    Abstract: A novel potato cultivar of the genus and species Solanum tuberosum, designated FL1900, is disclosed. The invention relates to the tubers of potato variety FL1900, to the plants of potato variety FL1900, to the seeds of potato variety and to methods for producing hybrid potato variety. The invention further relates to potato variety tubers, seeds and plants produced by crossing the potato variety FL1900 with another potato plant, and to Single Gene Converted plants.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: March 22, 2005
    Assignee: Recot Inc.
    Inventor: Robert W. Hoopes
  • Patent number: 6858777
    Abstract: Multiple shoot structures are induced from plant tissues (e.g., shoot apices or axillary buds on an artificial medium) to produce multiple shoot cultures. These multi-shoot cultures are then transformed by known transformation methods. Plants are subsequently regenerated from the transformed cells. Crops that may be efficiently transformed by this method include plants normally recalcitrant to transformation such as sugar beet, sunflower, soybean, cotton, tobacco, tomato, peanuts, melons, watermelon, squash, Brassica, and pepper.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: February 22, 2005
    Assignee: Syngenta Participations AG
    Inventors: Heng Zhong, Eric Boudreau, Sabrina Rouse, Erik Dunder, Weining Gu, Yin-Fu Chang
  • Patent number: 6846970
    Abstract: This invention relates to methods for producing, at a high frequency, transgenic plants that contain little if any vector sequences, have simple integration patterns, contain few copies of the transgene at each locus, express the transgene at all stages of development and do not exhibit transgene silencing. The method comprises introducing minimal transgene expression cassettes, which are substantially or totally devoid of vector sequences, by direct DNA transfer, preferably by particle or microprojectile bombardment. This invention also relates to transformed plant cells, the transgenic plants regenerated therefrom, and subparts of the transgenic plants produced by the methods of this invention. The invention also includes all progeny and subsequent progeny (i.e., all subsequent generations) derived from primary transformants through selfing or crossing.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: January 25, 2005
    Assignee: Plant Bioscience Limited
    Inventors: Paul Christou, Ajay Kohli
  • Publication number: 20040268444
    Abstract: The present invention refers to a plant produced by a process of selecting germ line-transformed leguminous plants. The process includes introducing exogenous genes into apical meristematic cells of the embryonic axis of leguminous plants by bombarding the plant cells with a DNA construct which includes a sequence which encodes a protein capable of conferring tolerance to a herbicide selected from the group consisting of an imidazolinone and a glyphosate, inducing multiple shoot formation from the transformed cells by culturing the embryonic axis in a medium containing a cytokinin, and selecting the meristematic cell-derived shoots obtained by culturing the embryonic axis on a medium containing imidazolinone or glyphosate.
    Type: Application
    Filed: June 7, 2004
    Publication date: December 30, 2004
    Inventors: Elibio Leopoldo Rech Filho, Francisco Jose Lima Apacao
  • Publication number: 20040250312
    Abstract: The invention relates to transgenic plants and plant cells comprising a reduced expression of invertase inhibitors. The modification of the expression of the invertase inhibitors is achieved by introducing a cDNA sequence in an antisense orientation with respect to a promoter. The expression of the antisense DNA sequence is under the regulation of either the CaMV35S promoter or a tissue specific promoter.
    Type: Application
    Filed: February 23, 2004
    Publication date: December 9, 2004
    Inventor: Thomas Rausch
  • Publication number: 20040226059
    Abstract: A method for embryogenesis and a method for plant regeneration are disclosed. Microspore-containing plant segment from donor plants are harvested and incubated under pre-treatment conditions to maintain microspores at a uninucleate cell cycle G1 phase. Pre-treatment conditions comprise cold water or an aqueous solution of about 0.2- about 1.0 mol/liter sugar alcohol, for example mannitol. Microspores are isolated from the plant segment and embryogenesis of microspores is induced in induction medium, thereby producing embryos. Green plants may be regenerated from the embryos produced. Arabinogalactan protein, auxin and ovary co-culture may be added to the induction medium to enhance embryogenesis from microspores.
    Type: Application
    Filed: June 8, 2004
    Publication date: November 11, 2004
    Inventors: Kenneth J. Kasha, Ecaterina Simion
  • Patent number: 6812028
    Abstract: A method for embryogenesis and a method for plant regeneration are disclosed. Microspore-containing plant segment from donor plants are harvested and incubated under pre-treatment conditions to maintain microspore at a uninucleate cell cycle G1 phase. Pre-treatment conditions comprise cold water or an aqueous solution of about 0.2-about 1.0 mol/liter sugar alcohol, for example mannitol. Microspores are isolated from the plant segment and embryogenesis of microspores is induced in induction medium, thereby producing embryos. Green plants may be regenerated from the embryos produced. Arabinogalactan protein, auxin and ovary co-culture may be added to the induction medium to enhance embryogenesis from microspores.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: November 2, 2004
    Assignee: University of Guelph
    Inventors: Kenneth J. Kasha, Ecaterina Simion
  • Publication number: 20040216191
    Abstract: The present invention relates to Production of transgenic tea (Camellia sinensis (L.) O.
    Type: Application
    Filed: January 22, 2002
    Publication date: October 28, 2004
    Applicant: Council of Scientific and Industrial Research
    Inventors: Indra Sandal, Amita Bhattacharya, Paramvir Singh Ahuja
  • Publication number: 20040199937
    Abstract: A method is provided for transforming undeveloped plastids in tobacco suspension culture to produce a transplastomic plant.
    Type: Application
    Filed: March 30, 2004
    Publication date: October 7, 2004
    Applicant: MONSANTO TECHNOLOGY LLC
    Inventors: Camri Langbecker, Jeffrey M. Staub, Guangning Ye
  • Publication number: 20040187174
    Abstract: The present invention relates to a process for varying a trait of monocot plants, which comprises steps of transforming a monocot plant with a recombinant plasmid containing OsCc1 promoter for transformation of monocot plants and a desired foreign gene and of expressing said foreign gene. According to the present invention, a rice plant was transformed with a recombinant plasmid containing a promoter for rice cytochrome c gene (OsCc1) and sgfp gene encoding a transformed green fluorescent protein, and the expressed fluorescent protein was then analyzed; as a result, it was identified that OsCc1 promoter can strongly, stably and ubiquitously induce the expression of a foreign gene in all the tissues of the rice plant.
    Type: Application
    Filed: May 30, 2003
    Publication date: September 23, 2004
    Inventors: Ju Kon Kim, Beak-Hie Nahm, Sang-Ik Song, In-Cheol Jang, Won-Bin Choi, Kyung-Hee Lee
  • Patent number: 6787687
    Abstract: The current invention provides nucleic acid sequences encoding the RIN and MC genes. Compositions comprising these sequences are described, as are plants transformed with such compositions. Further provided are methods for the expression of the RIN and MC genes. The methods of the invention include the direct creation of transgenic plants with the RIN and MC genes by genetic transformnation, as well as by plant breeding methods. The sequences of the invention represent a valuable new tool for the creation of transgenic plants, preferably having one or more added beneficial characteristics.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: September 7, 2004
    Inventors: James Giovannoni, Steven Tanksley, Veeraragavan Padmanabhan, Diane Ruezinsky, Julie Vrebalov, Ruth White
  • Patent number: 6784339
    Abstract: The invention relates to transgenic plants and plant cells comprising a reduced expression of invertase inhibitors. The modification of the expression of the invertase inhibitors is achieved by introducing a cDNA sequence in an antisense orientation with respect to a promoter. The expression of the antisense DNA sequence is under the regulation of either the CaMV35S promoter or a tissue specific promoter.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: August 31, 2004
    Inventor: Thomas Rausch
  • Patent number: 6765129
    Abstract: The invention relates to a method for producing plants containing increased quantities of tocopherols, vitamin K, carotinoids, chlorophylls and polyterpenes by overexpression of a DXPRI gene.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: July 20, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Hartmut Lichtenthaler, Jörg Schwender, Andreas Reindl, Karin Herbers
  • Patent number: 6762347
    Abstract: The current invention provides nucleic acid sequences encoding the NOR gene. Compositions comprising this sequence are described, as are plants transformed with such compositions. Further provided are methods for the expression of the NOR gene. The methods of the invention include the direct creation of transgenic plants with the NOR gene by genetic transformation, as well as by plant breeding methods. The sequences of the invention represent a valuable new tool for the creation of transgenic plants, preferably having one or more added beneficial characteristics.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: July 13, 2004
    Inventors: James Giovannoni, Steven Tanksley, Julia Vrebalov, Frederick Noensie
  • Patent number: 6747188
    Abstract: Transgenic plants with increased resistance to geminivirus infection, and nucleic acid constructs useful in producing such plants, are described. The transgenic plants express a mutant AL3/C3 geminivirus protein, which increases resistance to infection by at least one geminivirus, compared to a non-transformed control plant.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: June 8, 2004
    Assignee: North Carolina State University
    Inventors: Linda Hanley-Bowdoin, Sharon Settlage
  • Patent number: 6734344
    Abstract: The invention provides the nucleotide sequence of a novel &bgr;-(1,3) exoglucanase gene denoted as cbeg1 of the soil-borne fungus Coniothyrium minitans. The deduced amino acid sequence of the encoded &bgr;-(1,3) exoglucanase enzyme, denoted Cbeg1, is also provided. Encoded &bgr;-(1,3) exoglucanase Cbeg1 is specific for the substrate laminarin, in that results showed no activity with other substrates tested, such as carboxymethylcellulose, barley &bgr;-glucan, lichenan, oat spelt xylan and birchwood xylan. The pH and temperature optima for &bgr;-(1,3) exoglucanase Cbeg1 are 6.0 and 57° C., respectively. Cbeg1 contains 784 amino acids, and has a predicted isoelectric point (pI) of 6.0 and molecular weight of 83,646 Daltons. The invention further provides vectors and cells comprising a nucleic acid molecule encoding the cbeg1 gene, and methods for producing &bgr;-(1,3) exoglucanase Cbeg1.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: May 11, 2004
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of Agriculture and Agrifood
    Inventors: André J. Laroche, Timothy Yikai Huang, Michele M. Frick, Zhen-Xiang Lu, Hung Chang Huang, Kuo Joan Cheng
  • Publication number: 20040045056
    Abstract: The invention involves methods and materials related to the transformation of Brassica by particle bombardment. Specifically, the invention provides methods of preparing non-embryo Brassica tissue such that Brassica cells are capable of being cultured, transformed by particle bombardment, and regenerated into plants. In addition, this invention provides stably transformed Brassica cells as well as their progeny. This invention also provides methods of culturing Brassica tissue with liquid medium such that transformed Brassica cells are identified and regenerated into transformed Brassica plants.
    Type: Application
    Filed: April 15, 2003
    Publication date: March 4, 2004
    Inventors: Zhizheng Chen, Jennifer Celio, Benyuan Dang
  • Patent number: 6680426
    Abstract: Novel chimeric constructions and methods for their use are provided for expression of exogenous genes in a plant chloroplast. Particularly, expression is achieved by the use of a chloroplast or bacterial 5′ untranslated region in the expression cassette. The expression cassette may be integrated into the chloroplast genome by the use of chloroplast DNA flanking sequences, or may replicate autonomously if provided with a chloroplast origin of replication. Plants and cells containing the transformed chloroplasts are also provided. The constructs may be used with both monocotyledenous and dicotyledenous chloroplasts.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: January 20, 2004
    Assignee: Auburn University
    Inventors: Henry Daniell, Bruce A. McFadden
  • Publication number: 20030215949
    Abstract: The present invention is generally related to plant genetic engineering. In particular, the invention is directed to new dehydroascorbate reductase (“DHAR”) genes useful in modulating ascorbic acid levels in plants.
    Type: Application
    Filed: May 28, 2002
    Publication date: November 20, 2003
    Applicant: REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventor: Daniel R. Gallie
  • Patent number: 6649812
    Abstract: Method of production of transgenic plants wholly transformed into To generation. The method consists of a) genetically transforming a meristem explant; b) selective culturing for the specific development, among all the transformed cells, of those cells giving rise to secondary meristems and/or those cells capable of resulting in neoformed foliar meristems, c) regenerating, from the cellular material obtained during step b), transgenic plants.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: November 18, 2003
    Assignee: Biogemma
    Inventors: Nathalie Knittel, Philippe Lenee
  • Patent number: 6646181
    Abstract: In the process of the invention, the seed to be treated, a predetermined amount of solid matrix material and a predetermined amount of water are admixed and the mixture allowed to stand, preferably in a container which allows entry of air but which reduces evaporation losses, for example, a closed metal container with a small top opening, for a time and at a temperature sufficient to enhance resultant plant vigor, i.e., enhance emergence, growth of yield characteristics, but short of that which would cause the seed to sprout. Faulty seeds may be separated by size and systemic resistance to disease can be induced.
    Type: Grant
    Filed: February 21, 2000
    Date of Patent: November 11, 2003
    Assignee: Kamterter II, L.L.C.
    Inventor: John Alvin Eastin
  • Publication number: 20030196218
    Abstract: The invention concerns the use of duplex oligonucleotides about 25 to 30 base pairs to introduce site specific genetic alterations in plant cells. The oligonucleotides can be delivered by mechanical (biolistic) systems or by electrpoporation of plant protoplasts. Thereafter plants having the genetic alteration can be generated from the altered cells. In specific embodiments the invention concerns alteration in the gene that encode acid invertase, UDP-glucose pyrophosphorylase, polyphenol oxidase, O-methyl transferase, cinnamyl alcohol dehydrogenase, ACC synthase and ACC oxidase or etr-1 or a homolog of etr-1, and plants having isolated point mutations in such genes.
    Type: Application
    Filed: August 5, 1998
    Publication date: October 16, 2003
    Inventors: CHARLES J. ARNTZEN, PETER B. KIPP, RAMESH KUMAR, GREGORY D. MAY
  • Publication number: 20030192076
    Abstract: A method of enhancing growth and/or commercial yield of a plant is provided. The method is effected by expressing within the plant a polypeptide including an amino acid sequence at least 60% homologous to that set forth in SEQ ID NOs: 3, 5, 6, 7, 10, 11, 12 or 13.
    Type: Application
    Filed: April 10, 2003
    Publication date: October 9, 2003
    Applicant: Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Aaron Kaplan, Judy Lieman-Hurwitz, Daniella Schatz, Ron Mittler, Shimon Rachmilevitch
  • Publication number: 20030140382
    Abstract: The present invention relates to a process for biolistic transformation and regeneration of Pennisetum glaucum (Pearl millet) comprising: a) initiating embryogenic calli formation from the seeds of P glaucam in an MS media containing 5 mg/L of 2,4 D; b) incubating the said calli in dark for a predetermined period; c) sub-culturing the calli on an MS media containing 3 mg/L of 2.4 D; d) incubating said sub cultured calli under fight for a predetermined period; e) subjecting the embryogenic calli to biolistic bombardment with plasmid DNA containing pre-identified genes using a biolistic apparatus; f) allowing the proliferating calli to grow and differentiate into plantlets; g) analysing the expression of said pre-identified genes in the regenerated plantlets using known techniques.
    Type: Application
    Filed: December 2, 2002
    Publication date: July 24, 2003
    Inventors: Villoo Morawala Patell, Naganand Rayapuram, Ranjini Krishnan, Divya Chandran
  • Patent number: 6583336
    Abstract: The present invention relates to a novel process for the production of transgenic organisms or transgenic cells, to transgenic orgaisms or transgenic cells obtainable by the process of the present invention, to the use of vectors comprising DNA encoding a recombination promoting enzymes for curing impairments caused by environmental influences in plants or plant cells and for gene therapy in mammals or mammalian cells, and to novel vectors.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: June 24, 2003
    Assignee: BASF Plant Science GmbH
    Inventors: Bernd Reiss, Hans Kosak, Manfred Klemm, Jeff Schell
  • Patent number: 6570067
    Abstract: The invention provides a method for producing stably transformed dicotyledonous plants, via the introduction of a foreign DNA, containing an expression vector carrying a gene of interest, into dicotyledonous cells via one or more microparticle bombardments to produce transformed dicotyledonous cells; followed by the regeneration of a stably transformed fertile dicotyledonous plant from the transformed dicotyledonous cells.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: May 27, 2003
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Dwight T. Tomes, Arthur Weissinger, John C. Sanford, Theodore M. Klein
  • Patent number: 6570068
    Abstract: Maize tissue may be regenerated from nodal extracts prepared from germinated mature seeds and germinated embryos grown in a medium containing plant growth regulators. Nodal section explants are secured from seedlings approximately 3-10 days old, preferably from 3-7 days old. The explants are grown on an induction medium until adventitious shoot formation is observed. The shoots are separated and elongated on an MS-based medium, and then rooted. Fast genotype-independent regeneration is obtained, in 12-14 weeks. These explants, as well as zygotic embryos, may be transformed with exogenous DNA using a biolistic approach, where DNA precipitated onto tungsten microprojectiles is accelerated at a minimum of 650 psi towards the explants at a distance of at least 7.5 cm. Improved frequency of transformation is obtained using microprojectiles which prior to DNA precipitation were frozen in glycerol, and suspending from a preparation of 2.5 M CaCl2.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: May 27, 2003
    Assignee: Mississippi State University
    Inventors: Margaret M. Young, Nancy A. Reichert
  • Patent number: 6566137
    Abstract: The invention relates to improved transformation and regeneration of alfalfa, Medicago sativa. Regeneration and transformation of alfalfa is made possible by use of immature cotyledons of alfalfa. By using immature cotyledon tissue, it is possible to regenerate and transform varieties of alfalfa never before capable of regeneration and transformation.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: May 20, 2003
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Charisse M. Buising, Dwight Tomes