Ca2+ signaling in plant manganese uptake: CPK21/23 kinases phosphorylate and activate manganese transporter NRAMP1

Chao-Feng Huang

doi:10.1007/s44154-022-00067-w

Ca²⁺ signaling in plant manganese uptake: CPK21/23 kinases phosphorylate and activate manganese transporter NRAMP1

Stress Biol. 2022 Oct 20;2(1):43. doi: 10.1007/s44154-022-00067-w.

Author

Chao-Feng Huang¹

Affiliation

¹ National Key Laboratory of Plant Molecular Genetics, Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, 200032, China. huangcf@cemps.ac.cn.

Abstract

This brief article highlights the results of Fu et al. (Proc Natl Acad Sci USA 119:e2204574119, 2022), who recently found that manganese (Mn) deficiency triggers long-lasting multicellular Ca²⁺ oscillations in the elongation zone (EZ) of Arabidopsis roots and revealed a Ca²⁺-CPK21/23-NRAMP1 axis as an important mechanism for plant tolerance and adaptation to low Mn.

Keywords: Ca2+ signaling; Ca2+-dependent protein kinase (CPK); Manganese deficiency; NRAMP1 phosphorylation.

Grants and funding

31900216/National Natural Science Foundation of China