摘要:
This disclosure describes screening a population of transgenic plants derived from plant cells transformed with recombinant DNA for expression of proteins with homeobox domains to identify plant cells of specific transgenic events that are useful for imparting enhanced traits to transgenic crop plants. Traits include enhanced nitrogen use efficiency, increased yield, enhanced water use efficiency, enhanced tolerance to cold stress and/or improved seed compositions. Also disclosed are transgenic seeds for growing a transgenic plant having the recombinant DNA in its genome and exhibiting the screened enhance trait. Also disclosed are methods for generating seed and plants based on the transgenic events.
摘要:
The invention relates to methods for producing farnesol or geranylgeraniol comprising: (a) culturing a microorganism in a fermentation medium to produce a product selected from the group consisting of farnesyl phosphate and farnesol or geranylgeranyl phosphate and geranylgeraniol, wherein the action of squalene synthase of said microorganism is reduced; and (b) recovering said product.
摘要:
The present invention provides compositions and methods for producing a polyol oxidase in micoroorganisms, and the use of polyol oxidases in cleaning compositions. The invention includes cleaning compositions that contain combinations of two or more POx oxidases, and cleaning compositions that contain combinations of two or more POx oxidases and a perhydrolase. In particular, the invention provides methods for expressing polyol oxidases in bacterial hosts for use in detergent applications for cleaning, bleaching and disinfecting.
摘要:
The present invention provides a recombinant Penicillium chrysogenum strain characterized in that a gene selected from the list consisting of penDE, pcbAB and pcbC is inactivated and the use of such a strain for the preparation of a compound of interest. Furthermore, it is an object of the present invention to provide a method for the production of a compound of interest in a eukaryotic recombinant microorganism comprising the steps of : (a) Reducing the level of secondary metabolite production in said microorganism with 50-100%; (b) Introducing a heterologous gene into said microorganism
摘要:
The invention provides a method of producing α-tocopherol and α-tocopheryl esters and a method of producing vitamin A or β-carotene. The methods comprise using a biological system to produce farnesol or geranylgeraniol. Then, the farnesol or geranylgernaiol is chemically converted into α-tocopherol, an α-tocopheryl ester, vitamin A or β-carotene.
摘要:
Novel isolated polynucleotides and polypeptides associated with the lignin biosynthetic pathway are provided, together with constructs including such sequences. Methods for the modulation of lignin content, lignin structure and lignin composition in target organisms are also disclosed, the methods comprising incorporating one or more of the polynucleotides of the present invention into the genome of a target organism.
摘要:
A protein having an activity of hydroxylating compounds originating in a microorganism belonging to the genus Bacillus and represented by general formula (I-a) or lactones formed by cyclizing these compounds; a DNA encoding this protein; a recombinant DNA containing this DNA; etc.; in formula (I-a) R1 represents hydrogen, optionally substituted alkyl or an alkali metal; and R2 represents optionally substituted alkyl or optionally substituted aryl.
摘要:
The present invention relates to newly identified genes that encode proteins that are involved in the synthesis of L-ascorbic acid (hereinafter also referred to as Vitamin C). The invention also features polynucleotides comprising the full-length polynucleotide sequences of the novel genes and fragments thereof, the novel polypeptides encoded by the polynucleotides and fragments thereof, as well as their functional equivalents. The present invention also relates to the use of said polynucleotides and polypeptides as biotechnological tools in the production of Vitamin C from microorganisms, whereby a modification of said polynucleotides and/or encoded polypeptides has a direct or indirect impact on yield, production, and/or efficiency of production of the fermentation product in said microorganism. Also included are methods/processes of using the polynucleotides and modified polynucleotide sequences to transform host microorganisms. The invention also relates to genetically engineered microorganisms and their use for the direct production of Vitamin C.
摘要:
The present invention provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions include a novel nucleotide sequence for an inducible promoter for the gene encoding a maize deoxyhypusine synthase. 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.