TSAY, YI FANG,蔡宜芳,FAN, SHU CHUN,范淑君,CHEN, HUI YU,陈慧宇,陳慧宇
申请号：
TW099122608
公开号：
TWI418632B
申请日:
2010.07.08
申请国别(地区):
TW
年份:
2013
代理人:
摘要：
The present invention provides a method for changing nitrogen utilization efficiency in a plant comprises regulating the expression of Arabidopsis NRT 1.7 or an orthologue thereof so that the nitrate remobilization from older leaves to young leaves in the plant is regulated, thereby the nitrogen utilization efficiency is changed. The present invention also provides a transgenic plant obtainable by transforming a plant with an expression construct with a high or low level of expression of NRT 1.7. On the other hand, the present invention yet provides a chimera nitrate transporter, a DNA molecule coding for this chimera transporter and an expression vector thereof.本發明提供一種改變植物中氮利用效率之方法，其包含調控阿拉伯芥(Arabidopsis) NRT 1.7或其同源基因(orthologue)之表現，以調控該植物中由較老之葉移動至新葉的硝酸鹽再利用(nitrate remobilization)，因而改變氮利用效率。本發明亦提供一種轉基因植物，其係藉著以具有高或低量NRT 1.7表現之表現構築體轉形植物而取得。另一方面，本發明尚提供一種嵌合硝酸鹽轉運蛋白、編碼此種嵌合轉運蛋白之DNA分子、以及其表現載體。
