Molecular identification and physiological functional analysis of NtNRT1.1B that mediated nitrate long-distance transport and improved plant growth when overexpressed in tobacco
Abstract:Although recent physiological studies demonstrate that flue-cured tobacco preferentially utilizes nitrate (NO3−) or ammonium nitrate (NH4NO3), and possesses both high- and low-affinity uptake systems for NO3−, little is known about the molecular component(s) responsible for acquisition and translocation in this crop. Here we provide experimental data showing that NtNRT1.1B with a 1,785-bp coding sequence exhibited a function in mediating NO3− transport associated with tobacco growth on NO3− nutrition. Heterolo… Show more
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