期刊
PLANT PHYSIOLOGY AND BIOCHEMISTRY
卷 172, 期 -, 页码 56-69出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.plaphy.2022.01.001
关键词
Potassium; Abiotic stress tolerance; Plant growth regulation; Potassium signaling; Essential elements; Potassium in plants
Potassium is an essential element for plant growth and development, playing a vital role in regulating various functions and providing resistance against abiotic stress. This article reviews the physiological functions of potassium in plants, including stomatal regulation, photosynthesis, and water uptake, as well as its role in detoxifying reactive oxygen species and conferring tolerance to abiotic stresses.
Potassium (K) is an essential element for the growth and development of plants; however, its scarcity or excessive level leads to distortion of numerous functions in plants. It takes part in the control of various significant functions in plant advancement. Because of the importance index, K is regarded second after nitrogen for whole plant growth. Approximately, higher than 60 enzymes are reliant on K for activation within the plant system, in which K plays a vital function as a regulator. Potassium provides assistance in plants against abiotic stress conditions in the environment. With this background, the present paper reviews the physiological functions of K in plants like stomatal regulation, photosynthesis and water uptake. The article also focuses upon the uptake and transport mechanisms of K along with its role in detoxification of reactive oxygen species and in conferring tolerance to plants against abiotic stresses. It also highlights the research progress made in the direction of K mediated signaling cascades.
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