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    • 9. 发明授权
    • Method and an acetyl CoA carboxylase gene for conferring herbicide
tolerance
    • 方法和用于赋予除草剂耐受性的乙酰CoA羧化酶基因
    • US5498544A
    • 1996-03-12
    • US014326
    • 1993-02-05
    • Burle G. GengenbachDavid A. SomersDonald L. WyseJohn W. GronwaldMargaret A. EgliSheila M. Lutz
    • Burle G. GengenbachDavid A. SomersDonald L. WyseJohn W. GronwaldMargaret A. EgliSheila M. Lutz
    • A01H1/02A01H5/10C12N5/04C12N9/00C12N15/82
    • C12N9/93A01H1/02A01H5/10C12N15/8247C12N15/8274C12N5/04
    • The present invention provides an expression cassette encoding a plant acetyl CoA carboxylase gene and methods for conferring herbicide tolerance and/or altering the oil content of plants by introducing and expressing a plant acetyl CoA carboxylase gene in plant cells. An expression cassette of the invention can comprise a gene coding a plant acetyl CoA carboxylase or a functional mutant thereof or an antisense DNA sequence complementary to the sequence for a plant acetyl CoA carboxylase gene combined with a promoter functional in a plant cell. The method of imparting herbicide tolerance to a plant includes the steps of introducing the expression cassette into the cells of a plant tissue and expressing the plant acetyl CoA carboxylase gene in an amount effective to render the acetyl CoA carboxylase and/or plant cell substantially tolerant to the herbicides. The method of altering the oil content in a plant includes the steps of introducing an expression cassette into plant cells and expressing the acetyl CoA carboxylase gene in an amount effective to alter the oil content of the cells. The expression cassette can also be introduced into a prokaryotic cell to increase yield of a plant acetyl CoA carboxylase so that crystallized enzyme can be used to screen and identify other herbicides that bind to and inhibit the enzyme.
    • 本发明提供了编码植物乙酰辅酶A羧化酶基因的表达盒和通过在植物细胞中引入和表达植物乙酰辅酶A羧化酶基因来赋予植物耐受性和/或改变植物油含量的方法。 本发明的表达盒可以包含编码植物乙酰辅酶A羧化酶或其功能突变体的基因或与植物乙酰辅酶A羧化酶基因与在植物细胞中起作用的启动子组合的序列互补的反义DNA序列。 赋予植物除草剂耐受性的方法包括以下步骤:将表达盒引入植物组织的细胞中,并以有效使得乙酰辅酶A羧化酶和/或植物细胞基本上耐受的量表达植物乙酰辅酶A羧化酶基因 除草剂。 改变植物油含量的方法包括将表达盒引入植物细胞并以有效改变细胞油含量的量表达乙酰CoA羧化酶基因的步骤。 也可以将表达盒引入原核细胞以增加植物乙酰辅酶A羧化酶的产量,使得结晶的酶可用于筛选和鉴定结合并抑制酶的其它除草剂。