Nutrient-Responsive Plant microRNAs

Scheible, Wolf‐Rüdiger; Pant, Bikram Datt; Musialak‐Lange, Magdalena; Nuc, Przemysław

doi:10.1007/978-3-642-19454-2_20

Cited by 9 publications

(7 citation statements)

References 95 publications

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“…Fe uptake in root of nas4x-1 plants was up-regulated at this stage, most likely because intercostal leaf areas with mesophyll cells could not acquire Fe in sufficient amounts and stimulated root Fe uptake (Schuler and Bauer 2011). Such a stimulation could be obtained by microRNAs transport in phloem from Fedeficient mesophyll cells to roots (Buhtz et al 2010;Sheible et al 2011;Kehr 2012). Quadruple mutant nas4x-2 was severely affected: leaf chlorosis was present even during its early vegetative stage with Fe accumulation in vascular system and impaired transport of Fe to mesophyll (Schuler and Bauer 2011).…”

Section: Iron Traffickingmentioning

confidence: 98%

Low-molecular weight organic acids and peptides involved in the long-distance transport of trace metals

Kutrowska

Szeląg

2014

Acta Physiol Plant

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Higher plants evolved mechanisms of uptake, distribution and accumulation of trace metals essential for the proper functioning of the organism (e.g., copper, zinc). Non-essential metals (e.g., cadmium, arsenic, lead) can also enter plant cells using the routes dedicated to the essential ones, because of the shared similar chemical and physical properties. Generally, trace elements are very reactive, able to generate reactive oxygen species and to interact or bind various organic ligands composed of C, H, O, N, P or S. Thus, after entering to the cells, metals are transported and sequestered mainly in a complex form, bound with amino acids, organic acids, peptides or specific metal-binding ligands. Considering diverse properties (e.g., pH value, abundancy of ions, redox state) characterizing cells, tissues and phloem or xylem sap, plants use various ligands to form stable complexes in different conditions. This literature review aims to provide a comprehensive overview on the role of low-molecular weight acids and peptides in trace metals translocation.

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Section: Iron Traffickingmentioning

confidence: 98%

Low-molecular weight organic acids and peptides involved in the long-distance transport of trace metals

Kutrowska

Szeląg

2014

Acta Physiol Plant

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“…miRNAs are actively involved in regulation of plant growth, development and in various stresses (Meng et al 2010;Kruszka et al 2012;Wu 2013). In recent era, miRNAs evolved as an emerging and major players participating in a pleothora of post-transcriptional gene regulation and signaling events in response to the plant nutrient stress (Kuo and Chiou 2011;Scheible et al 2011;Kehr 2012;Khraiwesh et al 2012;Zeng et al 2014). During the last decade, involvement of various miRNAs was reported in N, P, and S stress condition but not for the K stress.…”

Section: Cross Talk Between Mirnas and Nutrient Stressmentioning

confidence: 99%

“…In recent era, miRNAs evolved as an emerging and major players participating in a pleothora of posttranscriptional gene regulation events in response to the plant nutrient stress (Kuo and Chiou 2011;Scheible et al 2011;Kehr 2012;Khraiwesh et al 2012). An understanding of plant nutrition is essential to reduce the fertilizer usage which negatively effects the environment and to create smart crops with high yield at low nutrient inputs, and ongoing efforts are there to address this issue (Good et al 2004).…”

Section: Introductionmentioning

confidence: 99%

NPKS uptake, sensing, and signaling and miRNAs in plant nutrient stress

Nath

Tuteja

2015

Protoplasma

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Sessile nature of higher plants consequently makes it highly adaptable for nutrient absorption and acquisition from soil. Plants require 17 essential elements for their growth and development which include 14 minerals (macronutrients: N, P, K, Mg, Ca, S; micronutrients: Cl, Fe, B, Mn, Zn, Cu, Ni, Mo) and 3 non-mineral (C, H, O) elements. The roots of higher plants must acquire these macronutrients and micronutrients from rhizosphere and further allocate to other plant parts for completing their life cycle. Plants evolved an intricate series of signaling and sensing cascades to maintain nutrient homeostasis and to cope with nutrient stress/availability. The specific receptors for nutrients in root, root system architecture, and internal signaling pathways help to develop plasticity in response to the nutrient starvation. Nitrogen (N), phosphorus (P), potassium (K), and sulfur (S) are essential for various metabolic processes, and their deficiency negatively effects the plant growth and yield. Genes coding for transporters and receptors for nutrients as well as some small non-coding RNAs have been implicated in nutrient uptake and signaling. This review summarizes the N, P, K, and S uptake, sensing and signaling events in nutrient stress condition especially in model plant Arabidopsis thaliana and involvement of microRNAs in nutrient deficiency. This article also provides a framework of uptake, sensing, signaling and to highlight the microRNA as an emerging major players in nutrient stress condition. Nutrient-plant-miRNA cross talk may help plant to cope up nutrient stress, and understanding their precise mechanism(s) will be necessary to develop high yielding smart crop with low nutrient input.

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“…MicroRNAs (miRNAs) regulate development and responses to environmental stresses in plants (Sunkar & Zhu, ). In Arabidopsis thaliana seedlings exposed to Pi limitation, miR399s, miR827, and miR778 are strongly induced, and miR398 and miR169 are repressed (Pant et al, ); miR399 is regarded as a molecular switch that is turned on only during Pi limitation (Scheible et al, ). Studies by Song and Liu () suggest that Pi deficiency enhances plant sensitivity to ethylene and induces the production of miR399, and they also suggest that the induction of miR399 is modulated by ethylene.…”

Section: Introductionmentioning

confidence: 99%

“…Studies by Song and Liu () suggest that Pi deficiency enhances plant sensitivity to ethylene and induces the production of miR399, and they also suggest that the induction of miR399 is modulated by ethylene. MiR399d plays a crucial role in the maintenance of Pi homeostasis and in plant adaptation to the low Pi growth environment (Scheible et al, ).…”

Section: Introductionmentioning

confidence: 99%

MiR399d and epigenetic modification comodulate anthocyanin accumulation in Malus leaves suffering from phosphorus deficiency

Peng

Tian

Luo

et al. 2020

Plant Cell & Environment

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Inorganic phosphorus (Pi) deficiency induces anthocyanin accumulation in the leaves of some plant species; however, the molecular mechanisms underlying this phenomenon have not been well characterized. Here, we showed that microRNA399d (miR399d), high-affinity Pi transporter McPHT1;4, and McMYB10 are strongly induced in Malus leaves suffering from Pi deficiency. By culturing explants of transiently transformed plants in MS medium under conditions of Pi sufficiency and Pi deficiency, miR399d and McPHT1;4 were shown to play essential roles in the response to Pi deficiency and to play positive roles in the regulation of anthocyanin biosynthesis. Silencing of McHDA6 expression and treatment with the inhibitor trichostatin A suggested that the low expression of McHDA6 simultaneously reduced the transcription of McMET1 and decreased the methylation level of the McMYB10 promoter; however, the expression of McMYB10 and anthocyanin content were increased. Bimolecular fluorescence complementation and yeast two-hybrid assays revealed that McHDA6 binds directly to McMET1 through its BAH2 and DNMT1-RFD domains. Based on the results of our study, we propose a mechanism for the molecular regulation of anthocyanin biosynthesis, namely, the miR399d and epigenetic modification comodulation model, to explain the phenomenon in which leaves turn red under conditions of Pi deficiency. K E Y W O R D S anthocyanin accumulation, epigenetic modification, Malus crabapple, McMYB10, miR399d, phosphorus deficiency

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Nutrient-Responsive Plant microRNAs

Cited by 9 publications

References 95 publications

Low-molecular weight organic acids and peptides involved in the long-distance transport of trace metals

Low-molecular weight organic acids and peptides involved in the long-distance transport of trace metals

NPKS uptake, sensing, and signaling and miRNAs in plant nutrient stress

MiR399d and epigenetic modification comodulate anthocyanin accumulation in Malus leaves suffering from phosphorus deficiency

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