CAJ | 학술논문

植酸酶是应用最广泛的饲料添加剂之一,它在自然界中广泛存在,能提高饲料中磷的利用率,对减轻动物高磷粪便导致的环境水域污染有着重要意义。玉米是动物饲料的主要原料,在玉米饲料中添加植酸酶易造成饲料成本升高和生产效率降低等问题。近年来随着基因工程技术的发展,已克隆出多个真菌植酸酶基因,并成功在微生物、植物系统中表达。本文主要介绍了植酸酶基因的微生物来源与相关研究成果,阐述了转基因技术的常用方法和转植酸酶基因玉米的研究进展,并详细评价了转植酸酶基因玉米的安全性。通过对转植酸酶基因玉米的深入探讨,对改善玉米的品质,降低成本及推广植酸酶在饲料工业中的应用具有重要意义。
식산매시응용최엄범적사료첨가제지일,타재자연계중엄범존재,능제고사료중린적이용솔,대감경동물고린분편도치적배경수역오염유착중요의의。옥미시동물사료적주요원료,재옥미사료중첨가식산매역조성사료성본승고화생산효솔강저등문제。근년래수착기인공정기술적발전,이극륭출다개진균식산매기인,병성공재미생물、식물계통중표체。본문주요개소료식산매기인적미생물래원여상관연구성과,천술료전기인기술적상용방법화전식산매기인옥미적연구진전,병상세평개료전식산매기인옥미적안전성。통과대전식산매기인옥미적심입탐토,대개선옥미적품질,강저성본급추엄식산매재사료공업중적응용구유중요의의。
Phytase is one of most widespread feed additives,which exists widely in nature.It can enhance the phosphorus andmineral absorption in monogastric animals,and it is significant for reducing the level of phosphorus output in nature.Maize is the major ingredient of animal feed,and it may enhance cost or reduce efficiency to maize by adding phytase.Recently,with the development of gene engineering technique,many phytase genes from fungus have been cloned and successfully expressed in the microorganisms and plants.In this review,we mainly introduced the microorganism resource of phytase gene and the relative investigation achievements,expounded the methods of transgenic technology and the research progress of the transgenic maize plants expressing phytase gene.Further,we also evaluated the safety of phytase transgenic maize.According to this article,we hope that it would improve the quality of maize,reduce the cost of production and promote the application of phytase in feed industry in the future.