Abstract
Amino acids are a kind of nutrient element necessary for plant growth and development. Through the participation of amino acid transporters, the transport of amino acids between aboveground and underground parts of plants and the loading of amino acids from xylem to phloem can be completed. At present, many genes encoding plant amino acid transporters have been isolated and cloned, but little is known about the functions of different amino acid transporters and their effects on plants. Therefore, this paper reviewed the role of amino acid transporters in plants from three aspects: the classification, isolation, and cloning of amino acid transporters genes and the functional research of amino acid transporters, to provide references for the utilization of amino acid transporters in plants.
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