饲料用非淀粉多糖水解酶转基因植物的研究进展  

Development on Expression of Endoglucanases and Endoxylanases in Transgenic Plants

作　　者：杨培龙[1] 姚斌[1] 范云六[2] 

机构地区：[1]中国农业科学院饲料研究所,北京100081 [2]中国农业科学院生物技术研究所,北京100081

出　　处：《中国生物工程杂志》2005年第9期29-34,共6页China Biotechnology

基　　金：国家转基因植物研究与产业化开发专项资助项目(JY03A1402)

摘　　要：植物来源的非淀粉多糖(non-starch polysaccharides,NSPs)是单胃动物饲料中的抗营养因子,其中最主要的是β-葡聚糖和木聚糖,这两种多聚糖可被相应的β-葡聚糖酶和木聚糖酶降解而消除其抗营养特性。转基因植物可以表达具有活性的β-葡聚糖酶和木聚糖酶,并正常生长发育。含有非淀粉多糖酶的转基因植物可直接作为饲料原料或饲料添加剂替代目前广泛在饲料中添加的发酵酶制剂。综述了两种非淀粉多糖酶转基因植物的研究进展,并对存在的问题和进一步的发展趋势进行了讨论。Non-starch polysaccharides （NSPs） in feeds have been found to be monogastric animals. The major anti-nutritional factors are β-glucan and xylan. They respectively by β-glucanase and xylanase, and the anti-nutritional factors can be eliminated. anti-nutritional in can be degraded Transgenic plants such as tobacco, barley and rice can express the active enzymes from microbes with no disadvantages. Transgenic plants expressing β-glucanase and xylanase can be used directly as feeds or feed additives, substituting for enzymes produced by fermentation. The development of transgenic plants expressing two hydrolytic enzymes were reviewed, and the problems and trends were discussed.

关 键 词：非淀粉多糖酶 Β-葡聚糖酶 木聚糖酶 转基因植物 饲料 饲料用 多糖水解酶 饲料添加剂 抗营养因子 抗营养特性 

分 类 号：Q943.2[生物学—植物学] S816.7[农业科学—饲料科学]