A calcium signalling network activates vacuolar K+ remobilization to enable plant adaptation to low-K environments

@article{Tang2020ACS,
  title={A calcium signalling network activates vacuolar K+ remobilization to enable plant adaptation to low-K environments},
  author={Ren-Jie Tang and Fugeng Zhao and Yang Yang and Chao Wang and Kunlun Li and Thomas J. Kleist and Peggy G. Lemaux and Sheng Luan},
  journal={Nature Plants},
  year={2020},
  volume={6},
  pages={384 - 393}
}
Potassium (K) is an essential nutrient, but levels of the free K ions (K+) in soil are often limiting, imposing a constant stress on plants. We have discovered a calcium (Ca2+)-dependent signalling network, consisting of two calcineurin B-like (CBL) Ca2+ sensors and a quartet of CBL-interacting protein kinases (CIPKs), which plays a key role in plant response to K+ starvation. The mutant plants lacking two CBLs (CBL2 and CBL3) were severely stunted under low-K conditions. Interestingly, the… 

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