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    • 1. 发明申请
    • A METHOD FOR OBTAINING PLANTS WITH REDUCED SUSCEPTIBILITY TO PLANT-PARASITIC NEMATODES
    • 一种减少对植物寄生虫的可怕性的植物的方法
    • WO1993010251A1
    • 1993-05-27
    • PCT/EP1992002559
    • 1992-11-02
    • MOGEN INTERNATIONAL N.V.SIJMONS, Peter, ChristiaanGODDIJN, Oscar, Johannes, MariaVAN DEN ELZEN, Peter, J., M.VAN DER LEE, Frédérique, Marianne
    • MOGEN INTERNATIONAL N.V.
    • C12N15/82
    • C12N9/1029C07K14/415C12N9/14C12N15/8285Y02A40/164
    • The present invention provides plants which as a result of the expression of a recombinant DNA have reduced susceptibility to a plant-parasitic nematode. According to a preferred embodiment said recombinant DNA causes disruption of a nematode feeding structure. In another preferred embodiment expression of said recombinant DNA is at least retarding formation of a nematode feeding structure. According to a more preferred embodiment said recombinant DNA comprises: 1) a gene-A which upon expression effects disruption of a nematode feeding structure, said gene-A being placed under the control of a promoter-A that drives expression at least in the nematode feeding structure, and 2) a gene-B which upon expression neutralizes the disruptive effect of gene-A, said gene-B being placed under the control of a promoter-B that drives expression in substantially all of the plant's cells wherein gene-A is expressed, with the proviso that said promoter does not effectively drive expression of gene-B in the nematode feeding structure. A preferred gene-A encodes barnase, while gene-B encodes barstar.
    • 本发明提供作为重组DNA表达的结果的植物对植物寄生线虫的易感性降低。 根据优选的实施方案,所述重组DNA导致线虫饲养结构的破坏。 在另一个优选的实施方案中,所述重组DNA的表达至少阻止了线虫饲养结构的形成。 根据更优选的实施方案,所述重组DNA包含:1)基因-A,其在表达时对线虫饲养结构产生破坏,所述基因-A置于至少在线虫中驱动表达的启动子-A的控制下 进食结构,以及2)基因B,其表达中和基因-A的破坏作用,所述基因B被置于启动子-B的控制下,其驱动基本上所有植物细胞中的基因表达,其中基因A 表达,条件是所述启动子不能有效地驱动线虫喂养结构中基因B的表达。 优选的基因-A编码芽孢杆菌RNA酶,而基因B编码barstar。
    • 3. 发明申请
    • PLANTS WITH REDUCED SUSCEPTIBILITY TO PLANT-PARASITIC NEMATODES
    • 具有减少对植物寄生虫的不利性的植物
    • WO1994010320A1
    • 1994-05-11
    • PCT/EP1993003091
    • 1993-11-02
    • MOGEN INTERNATIONAL N.V.SIJMONS, Peter, ChristiaanGODDIJN, Oscar, Johannes, MariaVAN DEN ELZEN, Petrus, Josephus, MariaVAN DER LEE, Frederique, Marianne
    • MOGEN INTERNATIONAL N.V.
    • C12N15/82
    • C12Y106/02004A01H5/06C07K14/415C12N9/0008C12N9/0042C12N9/1029C12N9/14C12N15/8285C12Y102/01009Y02A40/164
    • The present invention provides recombinant DNA containing a plant expressible gene which comprises in sequence: a promoter that drives expression of a downstream gene specifically in an initital feeding cell and/or a nematode feeding structure, a gene encoding a product that is inhibitory to an endogenous gene encoding a protein or polypeptide selected from the group consisting of ATP synthase, adenine nucleotide translocator, tricarboxylate translocator, dicarboxylate translocator, 2-oxo-glutarate translocator, cytochrome C, pyruvate kinase, glyceraldehyde-3P-dehydrogenase, NADPH-cytochrome p450 reductase, fatty acid synthase complex, glycerol-3P-acyltransferase, hydroxymethyl-glutaryl CoA reductase, aminocyl transferase, a transcription initiation factor, and a transcription elongation factor, a transcription terminator and a polyadenylation signal sequence, and wherein the said gene is expressed in said initial feeding cell or nematode feeding structure upon infection by the said nematode. The invention further provides plasmids, bacterial cells, recombinant plant genomes, as well as plant cells, plants and parts thereof, still harbouring recombinant genomes. The invention further provides plants with reduced susceptibilitiy against plant parasitic nematodes, as well as methods for obtaining same. Growing plants according to the invention in the field reduces yield losses due to nematode attack and/or reduces nematode populations in the soil.
    • 本发明提供了含有植物可表达基因的重组DNA,其顺序包含:启动子,其特异性地驱动下游基因表达在初始进食细胞和/或线虫饲养结构中,编码抑制内源性产物的基因 编码选自ATP合成酶,腺嘌呤核苷酸转运蛋白,三羧酸转运蛋白,二羧酸转运蛋白,2-氧代戊二酸转运蛋白,细胞色素C,丙酮酸激酶,甘油醛-3P脱氢酶,NADPH-细胞色素p450还原酶的蛋白质或多肽的基因, 甘油-3P-酰基转移酶,羟甲基 - 戊二酰辅酶A还原酶,氨基转移酶,转录起始因子和转录延伸因子,转录终止子和聚腺苷酸化信号序列,其中所述基因在所述初始 饲养细胞或线虫喂养结构在所述ne感染时 matode。 本发明还提供了仍含有重组基因组的质粒,细菌细胞,重组植物基因组,以及植物细胞,植物及其部分。 本发明还提供对植物寄生线虫具有降低的耐受性的植物,以及获得植物寄生线虫的方法。 根据本发明的生长植物在现场减少由线虫攻击引起的产量损失和/或减少土壤中的线虫种群。