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    • 1. 发明授权
    • Control of fruit ripening and senescence in plants
    • 控制植物中的果实成熟和衰老
    • US5512466A
    • 1996-04-30
    • US809457
    • 1991-12-17
    • Harry J. KleeGanesh M. Kishore
    • Harry J. KleeGanesh M. Kishore
    • A01H5/00C07H21/04C12N9/88C12N15/09C12N15/60C12N15/82C12N15/31A01H5/08C12N15/63
    • C12N15/8249C12N9/88
    • A method for controlling the ripening of fruits and vegetables as well as a method for controlling senescence of plant tissue is described. The method generally embraces the expression of an ACC metabolizing enzyme in the fruit or other desired plant tissue to inhibit the production of ethylene in the fruit or plant tissue. The use of the ACC metabolizing enzyme ACC deaminase is described in detail. The ripening or senescence process in the fruit or plant tissue is inhibited by the expression of the ACC deaminase gene such that the shelf-life and marketability of the fruit or plant is enhanced. The ACC metabolizing enzyme may be used in combination with other methods for reducing ethylene production in transformed plants to further reduce the production of ethylene in the fruit or plant. DNA constructs containing the ACC deaminase gene are also described.
    • 描述了控制水果和蔬菜成熟的方法以及控制植物组织衰老的方法。 该方法通常包含ACC代谢酶在果实或其它所需植物组织中的表达,以抑制水果或植物组织中的乙烯的产生。 ACC代谢酶ACC脱氨酶的使用详细描述。 水果或植物组织中的成熟或衰老过程受到ACC脱氨酶基因的表达的抑制,使得水果或植物的保质期和市售性提高。 ACC代谢酶可以与其他减少转化植物中乙烯生产的方法结合使用,以进一步减少水果或植物中乙烯的产生。 还描述了含有ACC脱氨酶基因的DNA构建体。
    • 10. 发明授权
    • Stabilization of L-phenylalanine ammonia-lyase enzyme
    • L-苯丙氨酸氨裂解酶的稳定化
    • US4562151A
    • 1985-12-31
    • US529434
    • 1983-09-06
    • Ganesh M. Kishore
    • Ganesh M. Kishore
    • C12N9/88C12N9/96C12N11/10C12P13/22C12R1/645C12R1/91C12P13/00C12P13/06
    • C12N11/10C12N9/88C12N9/96C12P13/222
    • A process for the synthesis of L-phenylalanines and analogues thereof from trans-cinnamate, ring substituted trans-cinnamates or various acrylate derivatives and ammonia or an ammonia donor in the presence of L-phenylalanine ammonia-lyase enzyme and a desensitizing agent such as polyhydric alcohols and polyethylene glycol-(400) is disclosed. The process embraces the discovery that compounds such as polyhydric alcohols and polyethylene glycol-(400) desensitize the L-phenyalanine ammonia-lyase enzyme to substantially higher substrate concentrations than practiced heretofore. In addition, polyhydric alcohols and polyethylene glycol-(400) substantially enhance the instantaneous rate of reaction and inhibit inactivation of the L-phenylalanine ammonia lyase enzyme over longer reaction periods.
    • 在L-苯丙氨酸氨裂解酶和脱敏剂如多羟基化合物存在下,从反式肉桂酸酯,环取代的反式肉桂酸酯或各种丙烯酸酯衍生物和氨或氨供体合成L-苯丙氨酸及其类似物的方法 醇和聚乙二醇 - (400)。 该方法包括以下发现:诸如多元醇和聚乙二醇 - (400)的化合物使L-苯丙氨酸氨裂解酶脱敏至比迄今为止实质上更高的底物浓度。 此外,多元醇和聚乙二醇(400)在更长的反应时间内基本上增强了瞬时反应速率并抑制了L-苯丙氨酸氨裂解酶的失活。