Significance of silicon uptake, transport, and deposition in plants

Mandlik, Rushil; Thakral, Vandana; Raturi, Gaurav; Shinde, Suhas; Nikolić, Miroslav; Tripathi, Durgesh Kumar; Sonah, Humira; Deshmukh, Rupesh

doi:10.1093/jxb/eraa301

Cited by 146 publications

(67 citation statements)

References 139 publications

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“…Metabolite transporters are involved in source‐sink carbon allocation and it being featured among the highly abundant transporters signifies their involvement in contributing to the yield of soybean as discussed in earlier study (Ludewig & Flügge, 2013). Detailed information about the differential expression of transporters in different tissues has great importance for the understanding of solute trafficking in the plants (Mandlik et al, 2020). The expression profiling of transporters will serve molecular biologists in many ways to understand the precise role of transporters in complex interactive solute trafficking system.…”

Section: Resultsmentioning

confidence: 99%

Soybean transporter database: A comprehensive database for identification and exploration of natural variants in soybean transporter genes

Deshmukh

Rana

Liu

et al. 2020

Physiologia Plantarum

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Transporters, a class of membrane proteins that facilitate exchange of solutes including diverse molecules and ions across the cellular membrane, are vital component for the survival of all organisms. Understanding plant transporters is important to get insight of the basic cellular processes, physiology, and molecular mechanisms including nutrient uptake, signaling, response to external stress, and many more. In this regard, extensive analysis of transporters predicted in soybean and other plant species was performed. In addition, an integrated database for soybean transporter protein, SoyTD, was developed that will facilitate the identification, classification, and extensive characterization of transporter proteins by integrating expression, gene ontology, conserved domain and motifs, gene structure organization, and chromosomal distribution features. A comprehensive analysis was performed to identify highly confident transporters by integrating various prediction tools. Initially, 7541 transmembrane (TM) proteins were predicted in the soybean genome; out of these, 3306 non‐redundant transporter genes carrying two or more transmembrane domains were selected for further analysis. The identified transporter genes were classified according to a standard transporter classification (TC) system. Comparative analysis of transporter genes among 47 plant genomes provided insights into expansion and duplication of transporter genes in land plants. The whole genome resequencing (WGRS) and tissue‐specific transcriptome datasets of soybean were integrated to investigate the natural variants and expression profile associated with transporter(s) of interest. Overall, SoyTD provides a comprehensive interface to study genetic and molecular function of soybean transporters. SoyTD is publicly available at http://artemis.cyverse.org/soykb_dev/SoyTD/.

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Section: Resultsmentioning

confidence: 99%

Soybean transporter database: A comprehensive database for identification and exploration of natural variants in soybean transporter genes

Deshmukh

Rana

Liu

et al. 2020

Physiologia Plantarum

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“…Therefore, since hormesis can also result in phenotypic changes and adaptation strategies in plants under challenging environments ( Macias-Bobadilla et al, 2020 ), this phenomenon has the potential to enhance agricultural sustainability in a changing world ( Agathokleous & Calabrese, 2019 ). Importantly, even under non-stressful environmental conditions, Si has been proven to stimulate plant growth and metabolism ( Trejo-Téllez et al, 2020 ; Xu et al, 2020 ), though its beneficial effects are more evident under stress conditions ( Ahanger et al, 2020 ; Bui, Duong & Nguyen, 2020 ; Mandlik et al, 2020 ; Singh et al, 2020 ; Vaculík et al, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Silicon flow from root to shoot in pepper: a comprehensive in silico analysis reveals a potential linkage between gene expression and hormone signaling that stimulates plant growth and metabolism

Gómez-Meriño

Trejo-Téllez

García-Jiménez³

et al. 2020

PeerJ

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Background Silicon (Si) is categorized as a quasi-essential element for plants thanks to the benefits on growth, development and metabolism in a hormetic manner. Si uptake is cooperatively mediated by Lsi1 and Lsi2. Nevertheless, Lsi channels have not yet been identified and characterized in pepper (Capsicum annuum), while genes involved in major physiological processes in pepper are Si-regulated. Furthermore, Si and phytohormones may act together in regulating plant growth, metabolism and tolerance against stress. Our aim was to identify potential synergies between Si and phytohormones stimulating growth and metabolism in pepper, based on in silico data. Methods We established a hydroponic system to test the effect of Si (0, 60, 125 and 250 mg L−1 Si) on the concentrations of this element in different pepper plant tissues. We also performed an in silico analysis of putative Lsi genes from pepper and other species, including tomato (Solanum lycopersicum), potato (Solanum tuberosum) and Arabidopsis thaliana, to look for cis-acting elements responsive to phytohormones in their promoter regions. With the Lsi1 and Lsi2 protein sequences from various plant species, we performed a phylogenetic analysis. Taking into consideration the Lsi genes retrieved from tomato, potato and Arabidopsis, an expression profiling analysis in different plant tissues was carried out. Expression of Si-regulated genes was also analyzed in response to phytohormones and different plant tissues and developmental stages in Arabidopsis. Results Si concentrations in plant tissues exhibited the following gradient: roots > stems > leaves. We were able to identify 16 Lsi1 and three Lsi2 genes in silico in the pepper genome, while putative Lsi homologs were also found in other plant species. They were mainly expressed in root tissues in the genomes analyzed. Both Lsi and Si-regulated genes displayed cis-acting elements responsive to diverse phytohormones. In Arabidopsis, Si-regulated genes were transcriptionally active in most tissues analyzed, though at different expressed levels. From the set of Si-responsive genes, the NOCS2 gene was highly expressed in germinated seeds, whereas RABH1B, and RBCS-1A, were moderately expressed in developed flowers. All genes analyzed showed responsiveness to phytohormones and phytohormone precursors. Conclusion Pepper root cells are capable of absorbing Si, but small amounts of this element are transported to the upper parts of the plant. We could identify putative Si influx (Lsi1) and efflux (Lsi2) channels that potentially participate in the absorption and transport of Si, since they are mainly expressed in roots. Both Lsi and Si-regulated genes exhibit cis-regulatory elements in their promoter regions, which are involved in phytohormone responses, pointing to a potential connection among Si, phytohormones, plant growth, and other vital physiological processes triggered by Si in pepper.

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“…After uptake by roots, Si follow the transpiration flow and it is accumulated beneath cuticle forming a double layer Si-cuticle, associated to cell wall and in Si-accumulating cells [31]. Furthermore, it was been previously reported that the highest Si concentration was present in major transpiration parts of the plants followed by the other parts of the plants [32].…”

Section: Silicon Wheat Absorptionmentioning

confidence: 99%

Silicon Use in the Integrated Disease Management of Wheat: Current Knowledge

Dallagnol¹,

Ramos²,

Dorneles³

2022

Current Trends in Wheat Research

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Silicon (Si) is a benefic element for higher plants such as wheat (Triticum aestivum) in which it is accumulated in the shoot tissues. In this crop, leaf diseases and spike diseases are the cause of yield losses, and therefore several studies had been conducted under field and greenhouse conditions to demonstrate that plants supplied with Si reduced most of the diseases damage due to the amelioration of the plant defenses. However, the benefits of Si depend on its accumulation in the plant’s tissue, which is influenced by the availability of the element in the soil as well as the up-take ability of the wheat cultivar. In this chapter we present the current knowledge about the mechanisms of Si absorption and its accumulation in different tissues of the wheat plant, the most studied options for silicate fertilization, and the benefits of Si on grain yield. We also present some insight of the effect of Si-supply in wheat on the reduction of main leaf and ear diseases, bringing evidence and explanation of the defense mechanisms involved. In addition, we provide an overview of the Si effect on the physiology (gas exchange, chlorophyll a fluorescence and carbohydrate metabolism) of the wheat plant. Finally, questions have been raised about the Si uses as fertilizer that still needs to be answered. We recognized that some studies have enhanced our understanding of Si providing evidence of the Si use as disease management strategy, but further research is needed to make the Si uses a simple task for wheat growers under field condition.

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Significance of silicon uptake, transport, and deposition in plants

Cited by 146 publications

References 139 publications

Soybean transporter database: A comprehensive database for identification and exploration of natural variants in soybean transporter genes

Soybean transporter database: A comprehensive database for identification and exploration of natural variants in soybean transporter genes

Silicon flow from root to shoot in pepper: a comprehensive in silico analysis reveals a potential linkage between gene expression and hormone signaling that stimulates plant growth and metabolism

Silicon Use in the Integrated Disease Management of Wheat: Current Knowledge

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