NRT1.5/NPF7.3 Functions as a Proton-Coupled H+/K+ Antiporter for K+ Loading into the Xylem in Arabidopsis.

  title={NRT1.5/NPF7.3 Functions as a Proton-Coupled H+/K+ Antiporter for K+ Loading into the Xylem in Arabidopsis.},
  author={Hong Min Li and Miao Yu and Xin-Qiao Du and Zhi-fang Wang and Wei-Hua Wu and Francisco J Quintero and Xue-Hua Jin and Hao-Dong Li and Yi Wang},
  journal={The Plant cell},
  volume={29 8},
Potassium and nitrogen are essential macronutrients for plant growth and have a positive impact on crop yield. Previous studies have indicated that the absorption and translocation of K+ and NO3- are correlated with each other in plants; however, the molecular mechanism that coordinates K+ and NO3- transport remains unknown. In this study, using a forward genetic approach, we isolated a low-K+-sensitive Arabidopsis thaliana mutant, lks2, that showed a leaf chlorosis phenotype under low-K… CONTINUE READING
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