Abstract
Plants require potassium (K+) as a macronutrient to support numerous physiological processes. Understanding how this nutrient is transported, stored, and utilized within plants is crucial for breeding crops with high K+ use efficiency. As K+ is not metabolized, cross-membrane transport becomes a rate-limiting step for efficient distribution and utilization in plants. Several K+ transporter families, such as KUP/HAK/KT and KEA transporters and Shaker-like and TPK channels, play dominant roles in plant K+ transport processes. In this review, we provide a comprehensive contemporary overview of our knowledge about these K+ transporter families in angiosperms, with a major focus on the genome-wide identification of K+ transporter families, subcellular localization, spatial expression, function and regulation. We also expanded the genome-wide search for the K+ transporter genes and examined their tissue-specific expression in Camelina sativa, a polyploid oil-seed crop with a potential to adapt to marginal lands for biofuel purposes and contribution to sustainable agriculture. In addition, we present new insights and emphasis on the study of K+ transporters in polyploids in an effort to generate crops with high K+ Utilization Efficiency (KUE).
Keywords: KUP/HAK/KT transporters, shaker-like channels, TPK channels, KEA transporters, subcellular localization, gene expression, function, Camelina sativa.
Graphical Abstract
Current Genomics
Title:Recent Advances in Genome-wide Analyses of Plant Potassium Transporter Families
Volume: 22 Issue: 3
Author(s): Dhondup Lhamo*, Chao Wang, Qifei Gao and Sheng Luan
Affiliation:
- Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720,United States
Keywords: KUP/HAK/KT transporters, shaker-like channels, TPK channels, KEA transporters, subcellular localization, gene expression, function, Camelina sativa.
Abstract: Plants require potassium (K+) as a macronutrient to support numerous physiological processes. Understanding how this nutrient is transported, stored, and utilized within plants is crucial for breeding crops with high K+ use efficiency. As K+ is not metabolized, cross-membrane transport becomes a rate-limiting step for efficient distribution and utilization in plants. Several K+ transporter families, such as KUP/HAK/KT and KEA transporters and Shaker-like and TPK channels, play dominant roles in plant K+ transport processes. In this review, we provide a comprehensive contemporary overview of our knowledge about these K+ transporter families in angiosperms, with a major focus on the genome-wide identification of K+ transporter families, subcellular localization, spatial expression, function and regulation. We also expanded the genome-wide search for the K+ transporter genes and examined their tissue-specific expression in Camelina sativa, a polyploid oil-seed crop with a potential to adapt to marginal lands for biofuel purposes and contribution to sustainable agriculture. In addition, we present new insights and emphasis on the study of K+ transporters in polyploids in an effort to generate crops with high K+ Utilization Efficiency (KUE).
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Cite this article as:
Lhamo Dhondup *, Wang Chao, Gao Qifei and Luan Sheng , Recent Advances in Genome-wide Analyses of Plant Potassium Transporter Families, Current Genomics 2021; 22 (3) . https://dx.doi.org/10.2174/1389202922666210225083634
DOI https://dx.doi.org/10.2174/1389202922666210225083634 |
Print ISSN 1389-2029 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5488 |
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