Journal
PLANT PHYSIOLOGY AND BIOCHEMISTRY
Volume 170, Issue -, Pages 316-324Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.plaphy.2021.12.019
Keywords
Light quality; Photoreceptors; K+ influx; K transport; Stomatal movement; Lycopene; Fruit color; Crop quality
Categories
Funding
- National Natural Science Foundation of China [32002030, 32160739, 31950410555]
- Foundation of Jiangxi Educational Committee, China [GJJ190219]
- Major Discipline Academic and Technical Leaders Training Program of Jiangxi Province, China-Young Talents Project [20204BCJL23044]
- Ministry of Science and Technology of the People's Republic of China [QNJ20200226001, QNJ2021026001]
- Henan University of Science and Technology Research Start-up Fund for New Faculty [13480058, 13480070]
- Natural Science Research Project of Jiangsu Higher Education Institutions [19KJB210001]
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This review explores the regulation of potassium uptake and utilization in plants by light, proposing potential mechanisms and highlighting the importance of light quality, intensity, and duration in potassium nutrition and crop quality. The study suggests that manipulating light signaling components and quality can enhance potassium utilization efficiency, providing a promising strategy for potassium management in crop production.
Essential macronutrient potassium (K) and environmental signal light regulate a number of vital plant biological processes related to growth, development, and stress response. Recent research has shown connections between the perception of light and the regulation of K in plants. Photoreceptors-mediated wavelength-specific light perception activates signaling cascades which mediate stomatal movement by altering K(+)influx/efflux via K+ channels in the guard cells. The quality, intensity, and duration of light affect the regulation of K nutrition and crop quality. Blue/red illumination or red combined blue light treatment increases the expression levels of K transporter genes, K uptake and accumulation, leading to increased lycopene synthesis and improved fruit color in tomato. Despite the commonalities of light and K in multiple functions, our understanding of light regulation of K and associated physiological and molecular processes is fragmentary. In this review, we take a look at the light-controlled K uptake and utilization in plants and propose working models to show potential mechanisms. We discuss major light signaling components, their possible involvement in K nutrition, stomatal movement and crop quality by linking the perception of light signal and subsequent regulation of K. We also pose some outstanding questions to guide future research. Our analysis suggests that the enhancement of K utilization efficiency by manipulation of light quality and light signaling components can be a promising strategy for K management in crop production.
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