Potassium Transport Systems at the Plasma Membrane of Plant Cells. Tools for Improving Potassium Use Efficiency of Crops

Amo, Jesús; Martínez‐Martínez, Almudena; Martı́nez, Vicente; Nieves‐Cordones, Manuel; Rubio, Francisco

doi:10.1002/9781119803041.ch7

Cited by 5 publications

(5 citation statements)

References 133 publications

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“…K is associated with cold resistance for plants because of the function of K in maintaining stable permeability and physiological activity of cells (Wang & Wu, 2017; Zörb et al, 2014). Also, K is linked to drought resistance since it regulates the stomata (Amo et al, 2023; Caine et al, 2023; Cochrane & Cochrane, 2009; Meng & Lou, 2000). Therefore, predecessors inferred that leaf K content increased with the decrease in temperature and precipitation for enhancing the cold and drought resistance (Li et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Leaf stoichiometry of potassium, calcium, and magnesium in tropical plants: Responses to climatic and geographical variations—A case study from Hainan Island

Wang,

Chen,

et al. 2024

Land Degrad Dev

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Grasping how climate change will affect the tropical region's leaf potassium, calcium, and magnesium content is pivotal for enhancing our comprehension of plant stoichiometry. Currently, there is limited research on leaf potassium, calcium, and magnesium in tropical plants, which is particularly evident with the increasing importance of tropical rainforest biodiversity studies. This study investigated the impact of geographical and climatic factors on the leaf potassium, calcium, and magnesium content in 346 plants (including woody plants, herbs, and vines) on Hainan Island. The findings demonstrated that the average leaf potassium, calcium, and magnesium contents were 5.77, 11.86, and 2.92 mg·g−1, respectively, which were less than that in the Chinese flora. Mean annual precipitation (MAP) has a promoting effect on leaf potassium content (p < 0.05), suggesting that artificial potassium fertilization is needed due to the increasing MAP. Leaf potassium and magnesium content were positively correlated with latitude (p < 0.05) and longitude (p < 0.01); and there was a negative correlation between leaf calcium content and latitude (p < 0.05), showing that geographical factors have a significant impact on the potassium, calcium, and magnesium content of plant leaves. Additionally, the variables regulating leaf potassium, calcium, and magnesium varied across woody plants, herbs, and vines. Therefore, it is necessary to make corresponding adjustments according to local conditions and the plant functional types during nutrient management. In conclusion, this study sheds light on their potential responses to global changes and is instrumental in informing the management of these nutrients in tropical rainforest plants.

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Section: Discussionmentioning

confidence: 99%

Leaf stoichiometry of potassium, calcium, and magnesium in tropical plants: Responses to climatic and geographical variations—A case study from Hainan Island

Wang,

Chen,

et al. 2024

Land Degrad Dev

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“…Under optimum supply of K + , differentially expressed proteins include Ubiquinone‐NADH dehydrogenase, mitochondrial dicarboxylate/tricarboxylate transporter, γ‐aminobutyrate transaminase that are involved in controlling the cellular‐like mitochondrial metabolism in plant (Ahmad & Maathuis, 2014). Recent studies revealed that increased K + content in leaves of plant is associated with increase in sucrose synthesis proteins like UDP‐sugar pyro phosphorylase, HHL1 (hypersensitive to high light 1), NADPH quinone oxidoreductase (Amo et al, 2023). Low K + induces proteins like peptidases, ribosomal proteins, signal recognition particle proteins, chloroplast ribosome binding factor that are involved in secondary metabolism of plants (Cui et al, 2019).…”

Section: Omics Perspective Of Potassium Use Efficiency In Plantsmentioning

confidence: 99%

Potassium transport and use efficiency for sustainable fertigation in protected cropping

Bhardwaj

Huda

Jayasena

et al. 2023

J of Sust Agri & Env

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The increasing demand for high‐quality horticultural produces in global markets has driven the growing crop production under protected cropping, which are usually more efficient in fertilizer use compared to field cultivation. As one of the key macronutrients, available potassium (K+) resources have decreased due to the expansion of intensive agriculture and excessive use of K fertilizers. Currently, limited strategies have been adopted to improve crop quality in protected cropping with sustainable use of K+ fertigation and its comprehensive understanding at physiological and molecular levels. Therefore, we highlight the importance of optimal use of K+ in fertigation in protected cultivation that may also enhance crop quality characteristics. We review different K+ channels and transporters from various protein families responsible for K+ absorption and distribution across different plant tissues. An analysis of the literature on transcriptome, ionome, proteome and metabolome profiles of crops suggests the crucial roles of K+ in maintaining ion homoeostasis and modulating stress responses. It reveals that optimal K+ fertigation levels in protected cropping not only aids in maintaining the overall crop growth and production but also participates in maintaining the fruit quality. This review can potentially guide crop production and resource use efficiency in protected cropping, contributing to global food security and a better sustainable agricultural and environmental future.

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“…69 K + , as a critical macronutrient, is the most abundant ion in plant cells and plays a key role in maintaining potential electrical gradients across cell mem- branes. 73 K + uptake presents dual affinity mechanisms of uptake kinetics: mechanism 1 (mediated by K + /H + symporter) is known as a high-affinity transport system (HATS). It operates in low external concentrations (<1 mM), allowing an inward flux of K + against an electrochemical gradient, and mechanism 2 (mediated by K + channel) defined as a lowaffinity transport system (LATS) which contrarily activates at high external concentrations (>1 mM).…”

Section: Uptake and Translocation And The Fate Of Pahs In Plantsmentioning

confidence: 99%

“…It has also been proved that the uptake of PHE as a model PAH is dependent on the K + influx, and there is a relationship between PAHs and K + uptake . K + , as a critical macronutrient, is the most abundant ion in plant cells and plays a key role in maintaining potential electrical gradients across cell membranes . K + uptake presents dual affinity mechanisms of uptake kinetics: mechanism 1 (mediated by K + /H + symporter) is known as a high-affinity transport system (HATS).…”

Section: Uptake and Translocation And The Fate Of Pahs In Plantsmentioning

confidence: 99%

Transfer and Degradation of PAHs in the Soil–Plant System: A Review

Tarigholizadeh,

Sushkova,

Rajput

et al. 2023

J. Agric. Food Chem.

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Polycyclic aromatic hydrocarbons (PAHs) are highly toxic, persistent organic pollutants that threaten ecosystems and human health. Consistent monitoring is essential to minimize the entry of PAHs into plants and reduce food chain contamination. PAHs infiltrate plants through multiple pathways, causing detrimental effects and triggering diverse plant responses, ultimately increasing either toxicity or tolerance. Primary plant detoxification processes include enzymatic transformation, conjugation, and accumulation of contaminants in cell walls/vacuoles. Plants also play a crucial role in stimulating microbial PAHs degradation by producing root exudates, enhancing bioavailability, supplying nutrients, and promoting soil microbial diversity and activity. Thus, synergistic plant−microbe interactions efficiently decrease PAHs uptake by plants and, thereby, their accumulation along the food chain. This review highlights PAHs uptake pathways and their overall fate as contaminants of emerging concern (CEC). Understanding plant uptake mechanisms, responses to contaminants, and interactions with rhizosphere microbiota is vital for addressing PAH pollution in soil and ensuring food safety and quality.

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Potassium Transport Systems at the Plasma Membrane of Plant Cells. Tools for Improving Potassium Use Efficiency of Crops

Cited by 5 publications

References 133 publications

Leaf stoichiometry of potassium, calcium, and magnesium in tropical plants: Responses to climatic and geographical variations—A case study from Hainan Island

Leaf stoichiometry of potassium, calcium, and magnesium in tropical plants: Responses to climatic and geographical variations—A case study from Hainan Island

Potassium transport and use efficiency for sustainable fertigation in protected cropping

Transfer and Degradation of PAHs in the Soil–Plant System: A Review

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