Role of Potassium in Plants

Potassium (K⁺) is an essential mineral macronutrient abundantly present in the cytosol which, unlike other macronutrients, is not metabolized and does not integrate into macromolecules. Compared to animal cells, K⁺  is more abundantly present in plant cells. 

Overall performance of the plant, and operation of metabolic machinery depends upon intracellular K⁺ homeostasis (K⁺ uptake and efflux) via K^...