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    • 73. 发明申请
    • CALLUS-SPECIFIC PROMOTERS
    • 电话特价促销
    • WO1993005164A1
    • 1993-03-18
    • PCT/GB1992001602
    • 1992-09-02
    • THE UNIVERSITY OF LEICESTERDRAPER, John
    • THE UNIVERSITY OF LEICESTER
    • C12N15/82
    • C07K14/415C12N15/8222C12N15/8223
    • A marker gene for use in the genetic transformation of plants is driven by a promoter which is capable of acting as a callus-specific promoter, for example in monocotyledonous plants. A suitable promoter naturally drives the expression of a gene encoding a predicted 16.92 kDa protein after wounding and/or callus formation in Asparagus officinalis or an equivalent protein in other members of Liliaceae or Amaryllidaceae. A preferred embodiment is designated the AoPR1 promoter. Under the control of a promoter of the invention, the marker gene (which may for example be an antibiotic- or herbicide-resistance gene) is expressed strongly in wounded tissues and cells and cultured explants, but not constitutively throughout the whole plant. Such promoters may also be used to drive expression of genes in plant tissue culture.
    • 用于植物遗传转化的标记基因由能够作为愈伤组织特异性启动子的启动子驱动,例如在单子叶植物中。 合适的启动子自然地驱动编码在芦笋中的伤口和/或愈伤组织形成之后的预测的16.92kDa蛋白质的基因的表达或百合科或芳樟科的其他成员中的等同蛋白质的表达。 优选的实施方案指定为AoPR1启动子。 在本发明的启动子的控制下,标记基因(其可以是例如抗生素或除草剂抗性基因)在受伤的组织和细胞和培养的外植体中强烈表达,但不整体在整个植物中表达。 此类启动子也可用于驱动植物组织培养中基因的表达。
    • 74. 发明申请
    • DIRECT DIGITAL POSITION READOUT TRANSDUCER
    • 直接数字位置读出传感器
    • WO1992007284A1
    • 1992-04-30
    • PCT/GB1991001773
    • 1991-10-11
    • UNIVERSITY OF LEICESTERFRASER, George, William
    • UNIVERSITY OF LEICESTER
    • G01T01/29
    • G01T1/2957
    • There is disclosed a direct digital position readout transducer for a 2 x 2 array of positions, adapted to assign coordinates uniquely to each of the 2 positions of the array, comprising readout elements arranged in m + n layers parallel to the array each ith layer (i = 1 to m) having 2 and each jth layer (j = 1 to n) having 2 readout elements, the elements of each layer occupying half of the 2 positions in that layer corresponding to the positions in the array and the ith and jth layers respectively assigning a "1" or a "0" to the ith and jth significant bits of the binary coordinates according as a signal incident at a position affects or does not affect a readout element in the ith and jth layer and the elements being so patterned within the layers as to yield thereby unique binary coordinate codes to the positions.
    • 公开了一种用于2×m 2 阵列阵列的直接数字位置读出换能器,其适于为阵列的2 个位置中的每一个独立地分配坐标,包括以m为单位布置的读出元件 + n个层与平行于阵列的每个第i层(i = 1到m)和具有2个读出元件的第j层(j = 1到n)的第i层(i = 1到m),每层的元素占据了 该层中的2