William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 5487991 | Process for the production of biologically active peptide via the expression of modified storage seed protein genes in transgenic plants A process is described for producing a polypeptide by cultivating a plant whose genome contains a recombinant DNA. The recombinant DNA includes: a) a first DNA sequence which encodes a precursor of a 2S albumin; and b) a heterologous second DNA sequence that encode... | 01/30/1996 |
| 5477002 | Anther-specific CDNA sequences, genomic DNA sequences and recumbinant DNA sequences cDNA sequences are disclosed which are expressed specifically in the anther of a plant. Genomic DNA sequences corresponding to the cDNA clones are obtained using the cDNA clones as hybridization probes. Recombinant, or chimeric, DNA sequences are construc... | 12/19/1995 |
| 5477001 | Recombinant DNA coding for a novel protein having ଲ-1,3-glucanase activity, bacteria containing this DNA, transformed plant cells and plants The invention provides a protein, isolated from soybean, having ଲ-1,3-glucanase activity and comprising the amino acid sequence of SEQ ID No: 1. DNA constructs encoding said protein, and transformed plants expressing the protein, are also provided.... | 12/19/1995 |
| 5459252 | Root specific gene promoter Disclosed is an isolated DNA molecule comprising a DNA promoter sequence, the RB7 promoter sequence, which is capable of directing root-specific transcription of a downstream structural gene in a plant cell. Also disclosed is a DNA construct comprising an... | 10/17/1995 |
| 5451513 | Method for stably transforming plastids of multicellular plants This invention provides methods for obtaining a plant cell of a multicellular plant, the plastids of which cell have been stably transformed by a foreign DNA of interest. These methods employ selectable markers some of which are nonlethal, some of which a... | 09/19/1995 |
| 5436392 | Transgenic plants expressing M. sexta protease inhibitor This invention relates to a protease inhibitor of the insect Manduca sexta, its purification, cloning of a DNA sequence encoding the inhibitor, modifications to change inhibitor specificity, transgenic plants carrying and expressing said DNA sequence and ... | 07/25/1995 |
| 5428146 | Wound-stimulated DNA-sequence from solanum tuberosum and its use The invention relates to wound-stimulated DNA from Solanum tuberosum as well as parts thereof, their use for the development of gene products in higher plants using wounding or pathogen attack, DNA-transfer vectors containing these, and plants or plant po... | 06/27/1995 |
| 5416250 | Genetic control of ethylene biosynthesis in plants using S-adenosylmethionine hydrolase A method for control of ethylene biosynthesis in plants comprising a vector containing a selective gene under plant promoter control, and a DNA insert comprising codons for a functional heterologous polypeptide having AdoMetase activity and flanked by a p... | 05/16/1995 |
| 5391725 | Organ-specific plant promoter sequences The present invention relates to novel plant organ-specific transcriptional promoter nucleic acid sequences, which regulate the expression of glutamine synthetase isoenzymes. Specifically, promoter sequences were isolated from the nuclear gene for chlorop... | 02/21/1995 |
| 5365017 | Method and composition for increasing sterol accumulation in higher plants A method of increasing sterol accumulation in a plant by increasing the copy number of a gene encoding a polypeptide having HMG-CoA reductase activity is disclosed. The copy number is preferably increased by transforming plants with a recombinant DNA mole... | 11/15/1994 |
| 5362864 | Trans-activating factor-1 The active portion of a trans-activating factor, TAF-1, has been identified, isolated and characterized. This proteinaceous factor binds to motif-I-like sequences previously identified within numerous plant promoter elements. TAF-1 may be engineered into ... | 11/08/1994 |
| 5359142 | Method for enhanced expression of a protein Novel transcription initiation regions that provide for enhanced transcription of a DNA sequence, particularly a plant sequence, are provided.... | 10/25/1994 |
| 5356799 | Antisense gene systems of pollination control for hybrid seed production A process is described for producing hybrid seed using male-sterile plants created by employing molecular techniques to manipulate antisense DNA and other genes that are capable of controlling the production of fertile pollen in plants. Transformation tec... | 10/18/1994 |
| 5349126 | Process and composition for increasing squalene and sterol accumulation in higher plants A process of increasing squalene and sterol accumulation in a transgenic plant by increasing the amount of a gene encoding a polypeptide having HMG-CoA reductase activity is disclosed. The amount is preferably increased by transforming plant cells with a ... | 09/20/1994 |
| 5349125 | Genetic sequences encoding a 3',5'-hydroxylase and uses therefor The present invention relates to a nucleic acid isolate comprising a sequence of nucleotides encoding, or complementary to a sequence encoding, a dihydrokaempferol (DHK) hydroxylating enzyme or derivative or part thereof. The present invention also relate... | 09/20/1994 |
| 5316931 | Plant viral vectors having heterologous subgenomic promoters for systemic expression of foreign genes The present invention is directed to recombinant plant viral nucleic acids and to hosts infected thereby. The recombinant plant viral nucleic acids comprise a native plant viral subgenomic promoter, at least one non-native plant viral subgenomic promoter,... | 05/31/1994 |
| 5306862 | Method and composition for increasing sterol accumulation in higher plants A method of increasing sterol accumulation in a plant by increasing the copy number of a gene encoding a polypeptide having HMG-CoA reductase activity is disclosed. The copy number is preferably increased by transforming plants with a recombinant DNA mole... | 04/26/1994 |
| 5304731 | Vector This invention relates to a novel vector constructed by inserting an exogenous RNA fragment into a vector comprising a satellite RNA of a plant virus in a way wherein the replication ability of the satellite is retained as much as possible to convert it t... | 04/19/1994 |
| 5283184 | Genetic engineering of novel plant phenotypes Methods are provided for producing plants exhibiting one or more desired phenotypic traits. In particular, transgenotes are selected that comprise a DNA segment operably linked to a promoter, wherein transcription products of the segment are substantially... | 02/01/1994 |
| 5268526 | Overexpression of phytochrome in transgenic plants The preparation of an uninterrupted coding sequence for phytochrome polypeptide, and its incorporation in a recombinant DNA construct containing a constitutive promoter and/or enhancer to transform plants to cause overexpression of phytochrome is describe... | 12/07/1993 |
| 5258300 | Method of inducing lysine overproduction in plants A method is provided for increasing the level of free L-lysine in a plant comprising: (a) introducing a foreign gene into the cells of a plant tissue source; and (b) expressing said foreign gene in said cells, wherein a first DNA sequence of said gene enc... | 11/02/1993 |
| 5187267 | Plant proteins, promoters, coding sequences and use Novel nucleic acid sequences, constructs employing such sequences, transgenic plant cells and plants are provided employing sequences associated with tomato heat shock protein 80.5 ("hsp80"). Nucleic acid sequences obtainable from the use of hsp80 as a pr... | 02/16/1993 |
| 5177306 | Abienol-producing somaclonal variants of nicotiana The present invention provides a method for producing plants with labdane production in Nicotiana which comprises subjecting plans to somaclonal variation, and screening for plants having higher than average labdane content. The invention also provides im... | 01/05/1993 |
| 5110732 | Selective gene expression in plants Fragments of the 35S promoter of cauliflower mosaic virus are disclosed which exhibit selective expression of chimeric plant genes in plant tissue. Promoter fragment A exhibits selective expression in root tissue and the radical of the seed. Promoter frag... | 05/05/1992 |
| 5073677 | Herbicidal tolerant plants containing rat glutathione S-transferase gene The invention relates to plant cells and dicotyledonous plants transformed with chimeric rat glutathione-S-transferase gene constructs. Transgenic tobacco plants and progeny expressed the chimeric gene constructs under the control of a plant promoter. The... | 12/17/1991 |
| 5073675 | Method of introducing spectinomycin resistance into plants This invention relates to the discovery that the prokaryotic enzyme, aminoglycoside 3"-adenyltransferase (AGAT), in particular as encoded by a bacterial aadA gene, is useful as a selectable marker for transformed plants. The enzyme conveys resistance to s... | 12/17/1991 |
| 5057422 | Recombinant DNA: transformed microorganisms, plant cells and plants: a process for introducing an inducible property in plants, and a process for producing a polypeptide or protein by means of plants or plant cells This invention relates to recombinant DNA comprising vector-DNA and a DNA sequence corresponding with, or relates to, a salicylate-inducible promoter of a GRP gene of plants, such as tobacco plants. The invention also relates to microorganisms, plant cell... | 10/15/1991 |
| 5023179 | Promoter enhancer element for gene expression in plant roots Detection of a cellular factor from pea and tobacco which binds to a repeated pentameric motif of TGACG present in the -90 to -60 region of the CaMV 35S promoter is disclosed. Also disclosed is a 21 bp promoter element which is capable of imparting root e... | 06/11/1991 |
| 5012040 | Somaclonal variants of Nicotiana glutinosa The present invention relates to novel plants of the species Nicotiana glutinosa, which produce unusually high levels of sclareol.... | 04/30/1991 |
| 4751348 | Nicotiana plants with both altered polyamine levels and flower structures and method for obtaining these plants Plant cell lines with altered flower structures, and altered plant male and/or female sterility/fertility, and altered polyamine synthesis have been isolated using a UV mutagenizing light, polyamine synthesis inhibitors, and growth in the dark. Some of th... | 06/14/1988 |