K+ uptake in plant roots. The systems involved, their regulation and parallels in other organisms

Nieves‐Cordones, Manuel; Alemán, Fernando; Martı́nez, Vicente; Rubio, Francisco

doi:10.1016/j.jplph.2013.09.021

Cited by 193 publications

(115 citation statements)

References 119 publications

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“…Consequently, plants trigger the expression of high-affinity K transporters and up-regulate certain K channel genes to facilitate uptake and transport of this cation (Adams and Shin, 2014). Similar to the other macronutrients such as N P, the K uptake into plant roots has high and low-affinity components (Nieves-Cordones et al, 2014). A substantial number of studies validated KT/HAK/KUP family members and named as HAK1 or HAK5 (in some species), which consist the high affinity K uptake system in different plant species (Martínez-Cordero et al, 2004;Nieves-Cordones et al, 2007).…”

Section: Potassium and Plant Mirnasmentioning

confidence: 99%

Dynamic roles of microRNAs in nutrient acquisition and plant adaptation under nutrient stress: A review

Shahzad¹,

Harlina²,

Ayaad³

et al. 2018

Plant Omics

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A constant supply of soil nutrients is critical for the normal growth and development of plants. However, most environments are unstable and this variability depends on numerous factors that include availability of water content, pH, redox potential, an abundance of organic matter as well as microorganisms in soils. To overcome these hurdles and to maintain nutritional homeostasis, plants have evolved sophisticated systems for the continuous provision of soil nutrients necessary for their uninterrupted growth. In this pressing scenario, plant microRNAs (miRNAs) have emerged as a central regulator of nutrients uptake and transport during limited nutrient conditions. Numerous studies establish the intrinsic involvement of miRNAs and their immediate targets facilitating the core mechanisms related to nutrient homeostasis. In this review, we focus on global overview of miRNAs and their dynamic roles involved in keeping nutritional balance within the plants mediated via post-transcriptional regulation by transcript cleavage or translational inhibition of their target mRNAs. In addition, we have also focused on some of the forefront plant adaptations mediated by miRNAs during nutrient deficiency, such as root architecture modifications, transport channel modulation, long distance signaling and subsequent nutrient mobilization through phloem. Moreover, plant strategy to bring out such alterations is a highly perplexing mechanism that requires changes at large scale which involves coordinated regulation of miRNAs and plant hormones at multiple levels. Deciphering the underlying miRNAs-based mechanisms for streamlining nutrient uptake and transport would be a giant step towards solving this conundrum.

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Section: Potassium and Plant Mirnasmentioning

confidence: 99%

Dynamic roles of microRNAs in nutrient acquisition and plant adaptation under nutrient stress: A review

Shahzad¹,

Harlina²,

Ayaad³

et al. 2018

Plant Omics

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“…However, as outlined below ("Potassium Nutrition and Crop Stress Resistance" section), high accumulation of K by crops during optimal growing conditions may be considered as an insurance strategy to enable the plant to better survive a sudden environmental stress (Kafkafi 1990). Plant species are known to differ in their K requirement and in their ability to take up K. The differences in absorption of K among different plant species are attributed to variations in root structure, such as root density, rooting depth, and root hair length (Nieves-Cordones et al 2014). All crops require potassium, especially highcarbohydrate plants such as maizes, bananas, and potatoes (Hillel 2008).…”

Section: Potassium Functions In Plantsmentioning

confidence: 99%

Potassium-Solubilizing Microorganism in Evergreen Agriculture: An Overview

Meena¹,

Bahadur²,

Maurya³

et al. 2016

Potassium Solubilizing Microorganisms for Sustainable Agriculture

140

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Increasing cost of the fertilizers with lesser nutrient use efficiency necessitates alternate means to fertilizers. Soil is a storehouse of nutrients and energy for living organisms under the soil-plant-microorganism system. These rhizospheric microorganisms are crucial components of sustainable agricultural ecosystems. They are involved in sustaining soil as well as crop productivity under organic matter decomposition, nutrient transformations, and biological nutrient cycling. The rhizospheric microorganisms regulate the nutrient flow in the soil through assimilating nutrients, producing biomass, and converting organically bound forms of nutrients. Soil microorganisms play a significant role in a number of chemical transformations of soils and thus, influence the availability of macro-and micronutrients. Use of plant growth-promoting microorganisms (PGPMs) helps in increasing yields in addition to conventional plant protection. The most important PGPMs are Azospirillum,

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“…21 At very low external K C concentrations (<10 mM) the high-affinity K C transporter HAK5 is the only protein capable of taking up K C . 22 By K C deprivation HAK5, but not AKT1, is transcriptionally upregulated in Col-0 roots.…”

Section: Introductionmentioning

confidence: 99%

The Arabidopsis nitrate transporter NPF7.3/NRT1.5 is involved in lateral root development under potassium deprivation

Zheng

Drechsler

Rausch

et al. 2016

Plant Signaling & Behavior

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K+ uptake in plant roots. The systems involved, their regulation and parallels in other organisms

Cited by 193 publications

References 119 publications

Dynamic roles of microRNAs in nutrient acquisition and plant adaptation under nutrient stress: A review

Dynamic roles of microRNAs in nutrient acquisition and plant adaptation under nutrient stress: A review

Potassium-Solubilizing Microorganism in Evergreen Agriculture: An Overview

The Arabidopsis nitrate transporter NPF7.3/NRT1.5 is involved in lateral root development under potassium deprivation

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