摘要:
The present invention relates to an improved process for the specific production of poly-unsaturated omega-3 and omega-6 fatty acids and a process for the production of triglycerides having an increased content of unsaturated fatty acids, in particular omega-3 and omega-6 fatty acids having at least two double bonds and a 20 or 22 carbon atom chain length. The invention relates to the production of a transgenic organism, preferably a transgenic plant or a transgenic microorganism, hav-ing an increased content of fatty acids, oils or lipids containing C20- or C22-fatty acids with a delta-5, 7, 8, 10 double bond, respectively due to the expression of a delta-8-desaturase and a delta-9-elon-gase from organisms such as plants preferably Algae like Isochrysis galbana or Euglena gracilis. In addition the invention relates to a process for the production of poly unsaturated fatty acids such as Eicosapentaenoic, Arachidonic, Docosapentaenoic or Doosahexaenoic acid through the co-expression of a delta-8-desaturase, a delta-9-elongase and a delta-5 desaturase in organisms such as microorganisms or plants. The invention additionally relates to the use of specific nucleic acid sequences encoding for the aforementioned proteins with delta-8-desaturase-, delta-9-elongase- or delta-5-desaturase-activity, nucleic acid constructs, vectors and organisms containing said nucleic acid sequences. The invention further relates to unsaturated fatty acids and triglycerides having an increased content of at least 1% by weight of unsaturated fatty acids and use thereof.
摘要:
The present invention relates to an improved process for the specific production of poly-unsaturated omega-3 and omega-6 fatty acids and a process for the production of triglycerides having an increased content of unsaturated fatty acids, in particular omega-3 and omega-6 fatty acids having at least two double bonds and a 20 or 22 carbon atom chain length. The invention relates to the production of a transgenic organism, preferably a transgenic plant or a transgenic microorganism, hav-ing an increased content of fatty acids, oils or lipids containing C20- or C22-fatty acids with a delta-5, 7, 8, 10 double bond, respectively due to the expression of a delta-8-desaturase and a delta-9-elon-gase from organisms such as plants preferably Algae like Isochrysis galbana or Euglena gracilis. In addition the invention relates to a process for the production of poly unsaturated fatty acids such as Eicosapentaenoic, Arachidonic, Docosapentaenoic or Doosahexaenoic acid through the co-expression of a delta-8-desaturase, a delta-9-elongase and a delta-5 desaturase in organisms such as microorganisms or plants. The invention additionally relates to the use of specific nucleic acid sequences encoding for the aforementioned proteins with delta-8-desaturase-, delta-9-elongase- or delta-5-desaturase-activity, nucleic acid constructs, vectors and organisms containing said nucleic acid sequences. The invention further relates to unsaturated fatty acids and triglycerides having an increased content of at least 1% by weight of unsaturated fatty acids and use thereof.
摘要:
The present invention relates to a process for the production of long-chain polyunsaturated fatty acids in an organism by introducing, into the organism, nucleic acids which code for polypeptides with acyl transferase activity. These nucleic acid sequences, if appropriate together with further nucleic acid sequences which code for polypeptides of the fatty acid or lipid metabolism biosynthesis, can advantageously be expressed in the organism. Furthermore, the invention relates to a method for the production of oils and/or triacylglycerides with an elevated content of long-chain polyunsaturated fatty acids.The invention furthermore relates to the nucleic acid sequences, nucleic acid constructs, vectors and organisms comprising the nucleic acid sequences according to the invention, vectors comprising the nucleic acid sequences and/or the nucleic acid constructs and to transgenic organisms comprising the abovementioned nucleic acid sequences, nucleic acid constructs and/or vectors.A further part of the invention relates to oils, lipids and/or fatty acids produced by the process according to the invention and to their use.
摘要:
The invention relates to a process for the production of long-chain polyunsaturated fatty acids in an organism by introducing, into the organism, nucleic acids coding for polypeptides with acyltransferase activity. These nucleic acid sequences, if appropriate together with further nucleic acid sequences coding for polypeptides of the fatty acid or lipid metabolism biosynthesis, can advantageously be expressed in the organism. Furthermore, the invention relates to a method for the production of oils and/or triacylglycerides with an elevated content of long-chain polyunsaturated fatty acids. The invention furthermore relates to the nucleic acid sequences, and constructs, vectors and organisms comprising the nucleic acid sequences. A further part of the invention relates to oils, lipids and/or fatty acids produced by the process according to the invention and to their use.
摘要:
This invention relates to a new elongase gene having the sequence SEQ ID NO: 1 or its derivatives, to a gene construct comprising this sequence or its derivatives and to its use. The inventive nucleic acid sequence encodes a polypeptide which elongates α-linolenic acid (C18:3 d9, 12, 15) by at least two carbon atoms whereas γ-linolenic acid (C18:3 d6, 9, 12) is not elongated. The invention additionally relates to vectors or organisms comprising an elongase gene having the sequence SEQ ID NO: 1 or its derivatives.The invention further relates to a process for the production of polyunsaturated fatty acids (=PUFAs) with an organism which comprises the elongase gene and which organism produces high amounts of oils and especially oils with a high content of unsaturated fatty acids. Additionally the invention relates to an oil and/or fatty acid composition with a higher content of polyunsaturated C20 or C22 fatty acids with at least two double bonds and/or to a triacylglycerol composition with a higher content of said polyunsaturated fatty acids.
摘要翻译:本发明涉及具有序列SEQ ID NO:1或其衍生物的新的延伸酶基因,涉及包含该序列或其衍生物的基因构建体及其用途。 本发明的核酸序列编码将α-亚麻酸(C18:3d9,12,15)延伸至少两个碳原子,而γ-亚麻酸(C18:3d6,9,12)不伸长的多肽。 本发明还涉及包含具有序列SEQ ID NO:1或其衍生物的延伸酶基因的载体或生物体。 本发明还涉及用生物体生产多不饱和脂肪酸(= PUFA)的方法,所述生物体包含延伸酶基因,该生物体产生大量的油,特别是具有高含量不饱和脂肪酸的油。 此外,本发明涉及具有较高含量的具有至少两个双键的多不饱和C20或C22脂肪酸和/或具有较高含量的所述多不饱和脂肪酸的三酰基甘油组合物的油和/或脂肪酸组合物。
摘要:
This invention relates to a new elongase gene having the sequence SEQ ID NO: 1 or its derivatives, to a gene construct comprising this sequence or its derivatives and to its use. The inventive nucleic acid sequence encodes a polypeptide which elongates α-linolenic acid (C18:3 d9, 12, 15) by at least two carbon atoms whereas γ-linolenic acid (C18:3 d6, 9, 12) is not elongated. The invention additionally relates to vectors or organisms comprising an elongase gene having the sequence SEQ ID NO: 1 or its derivatives. The invention further relates to a process for the production of polyunsaturated fatty acids (=PUFAs) with an organism which comprises the elongase gene and which organism produces high amounts of oils and especially oils with a high content of unsaturated fatty acids. Additionally the invention relates to an oil and/or fatty acid composition with a higher content of polyunsaturated C20 or C22 fatty acids with at least two double bonds and/or to a triacylglycerol composition with a higher content of said polyunsaturated fatty acids.
摘要翻译:本发明涉及具有序列SEQ ID NO:1或其衍生物的新的延伸酶基因,涉及包含该序列或其衍生物的基因构建体及其用途。 本发明的核酸序列编码将α-亚麻酸(C 18-18:3 d 9,12,15)延伸至少两个碳原子的多肽,而γ-亚麻酸(C 18: 3 d6,9,12S)不是细长的。 本发明还涉及包含具有序列SEQ ID NO:1或其衍生物的延伸酶基因的载体或生物体。 本发明还涉及用生物体生产多不饱和脂肪酸(= PUFA)的方法,所述生物体包含延伸酶基因,该生物体产生大量的油,特别是具有高含量不饱和脂肪酸的油。 此外,本发明涉及具有较高含量的多不饱和C 20或C 22脂肪酸与至少两个双键的油和/或脂肪酸组合物和/或至 具有较高含量的所述多不饱和脂肪酸的三酰基甘油组合物。