Function and Regulation Mechanisms of Nitrate Transporters in Higher Plants

Abstract

Abstract: Nitrate（NO₃^-）is main nitrogen sources which plants absorb from soil. There are two different uptake systems in plants to cope with low or high NO₃^-concentrations in soil, the high affinity systems（HATS）and low affinity NO₃^-uptake systems（LATS）. It is suggested that NRT1 and NRT2 families contribute to LATS and HATS for both NO₃^-uptake and distribution within the plant. Specific transport systems are essential for the uptake of NO₃^- and for its internal redistribution within plant. Over the past years, a significant advance has been obtained on the gene cloning, expression regulation and functional characterization of NRT1/2 transporters in higher plants. In this article, the research progresses on molecular level of known Nitrate transporters in higher plant in last decade were reviewed.

Key words: Higher plants, Nitrate transporters, Regulation mechanism, Recent advances

Jia Hongfang, Zhang Hongying, Liu Weizhi, Cui Hong, Liu Guoshun. Function and Regulation Mechanisms of Nitrate Transporters in Higher Plants[J]. Biotechnology Bulletin, 2014, 0(6): 14-21.

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