Method for decreasing seed storage proteins and for transforming plants
    2.
    发明授权
    Method for decreasing seed storage proteins and for transforming plants 失效
    减少种子储存蛋白和转化植物的方法

    公开(公告)号:US5516668A

    公开(公告)日:1996-05-14

    申请号:US142393

    申请日:1993-11-24

    申请人: Yoshiyuki Maruta

    发明人: Yoshiyuki Maruta

    摘要: A method for decreasing a seed storage protein in seeds by a genetic engineering method and a method for transforming plants are disclosed. In the method of the present invention, a gene which is a template of a mRNA having a nucleotide sequence complementary to the mRNA of the seed storage protein is introduced in a plant; and the gene in seeds of the plant is transcribed to inhibit translation of the mRNA of the seed storage protein, thereby decreasing the seed storage protein in the seeds. In the method for transforming plants according to the present invention, a plant is transformed with a vector containing a glutelin promoter and a foreign gene.

    摘要翻译: PCT No.PCT / JP92 / 00355 Sec。 371日期:1993年11月24日 102(e)日期1993年11月24日PCT 1991年3月24日PCT公布。 公开号WO93 / 18643 日期:1993年9月30日。一种通过基因工程方法和转化植物的方法减少种子中的种子储存蛋白的方法。 在本发明的方法中,将具有与种子保存蛋白质的mRNA互补的核苷酸序列的mRNA的模板的基因引入植物中; 并且转录植物种子中的基因以抑制种子储存蛋白的mRNA的翻译,从而减少种子中的种子储存蛋白。 在根据本发明的转化植物的方法中,用含有谷蛋白启动子和外来基因的载体转化植物。

    Screw compressor
    4.
    发明授权
    Screw compressor 失效
    螺杆压缩机

    公开(公告)号:US5051077A

    公开(公告)日:1991-09-24

    申请号:US446292

    申请日:1989-12-05

    IPC分类号: F04C18/16 F04C29/12

    CPC分类号: F04C29/12 F04C18/16

    摘要: The present invention is drawn to a screw compressor having a wide operating range with respect to flow rate and pressure ratio, wherein a discharge opening portion of a casing is provided with a generally tapered notch portion so that compressed gas is gradually discharged from a certain fixed point where a volume ratio of one groove defined by rotors and the casing is smaller than an inherent built-in volume ratio. Since the present invention is arranged in the above-mentioned manner, the flow of the gas at the discharge opening portion is reduced by the notch portion which is readily formed. Thereby the variation range of the pressure (the amplitude of pulsation of the pressure) is decreased and the noise level is lowered. Further, a loss of pressure resulting from the rapid flow of the gas is restricted to thereby widen a range of preferable performance of the compressor.