The Arabidopsis L-Type Amino Acid Transporter 5 (LAT5/PUT5) Is Expressed in the Phloem and Alters Seed Nitrogen Content When Knocked Out

拟南芥 L 型氨基酸转运蛋白 5 (LAT5/PUT5) 在韧皮部中表达，敲除后会改变种子的氮含量