Selenium accumulation by plants

White, Philip J.

doi:10.1093/aob/mcv180

Cited by 236 publications

(374 citation statements)

References 206 publications

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“…Activating sulfate transporter is conducive to promoting Se uptake and translocation from roots to shoots in plants [51][52][53][54]. In this study, the data of RNA-Seq revealed that the release of VOCs released by BF06 induced the expression of sulfate transporter genes including SULRT1;1, SULRT1;2, SULTR2;1, SULTR2;2 and SULTR3;5, indicating that BF06 VOCs was likely involved in the regulation of Se uptake in Arabidopsis.…”

Section: Effects Of Bf06 Vocs On Se Accumulation In Plantsmentioning

confidence: 56%

“…In this study, combined analyses of RNA-Seq and qRT-PCR confirmed that the release of VOCs by BF06 distinctly upregulated the expression of several sulfate transporter genes including SULRT1;1, SULRT1;2, SULTR2;1, SULTR2;2, and SULTR3;5, which are involved in the regulation of Se uptake and translocation [51][52][53][54]. For this purpose, we investigated the effects of microbial VOCs on Se absorption in Arabidopsis plants.…”

Section: Bf06 Vocs Regulates Plant Uptake Of Se By Upregulating Of Sumentioning

confidence: 68%

“…In addition, the transcription of several sulfate transporter genes was significantly increased in the VOCs-exposed plants compared with the controls (Table S4). These sulfate transporter genes have been demonstrated to play essential roles in Se assimilation in Arabidopsis plants [51][52][53][54]. Thus, the VOCs-induced expression of sulfate transporter genes might participate in the regulation of Se accumulation in plants.…”

Section: Transcriptomic Analysis Of Bf06 Vocs-regulated Gene Profilesmentioning

confidence: 99%

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Enhanced Iron and Selenium Uptake in Plants by Volatile Emissions of Bacillus amyloliquefaciens (BF06)

et al. 2017

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Volatile organic compounds (VOCs) released by plant growth-promoting rhizobacteria (PGPR) are involved in promoting growth and triggering systemic resistance (ISR) in plants. Importantly, the release of VOCs by some PGPR strains confers improved plant uptake of nutrient elements from the soil. However, the underlying mechanisms of VOCs-regulated nutrient acquisition remain elusive. In this study, VOCs were extracted and identified from Bacillus amyloliquefaciens (strain BF06) using gas chromatography-mass spectrometry (GC-MS). BF06 VOCs exposure significantly promoted the growth and photosynthesis of Arabidopsis plants. To explore how microbial VOCs stimulate growth in plants, gene expression profiles of Arabidopsis seedlings exposed to BF06 VOCs were examined using transcriptomic analyses. In screening differentially expressed genes (DEGs), most upregulated DEGs were found to be related to amino acid transport, iron (Fe) uptake and homeostasis, and sulfate transport. Furthermore, BF06 VOCs significantly enhanced Fe absorption in plants under Fe-limited conditions. However, when nitric oxide (NO) synthesis was inhibited, BF06 VOCs exposure could not substantially augment Fe acquisition in plants under alkaline stress, indicating that VOCs-mediated plant uptake of Fe was required for induction of root NO accumulation. In addition, BF06 VOCs exposure led to a marked increase in some genes encoding for sulfate transporters, and further increased Se accumulation in plants. Intriguingly, BF06 VOCs exposure failed to increase Se uptake in sultr1;2 mutants, which may indicate that high-level transcription of these sulfate transporters induced by BF06 VOCs was essential for enhancing Se absorption by plants. Taken together, our results demonstrated the potential of VOCs released by this strain BF06 to increase Fe and Se uptake in plants.

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Section: Effects Of Bf06 Vocs On Se Accumulation In Plantsmentioning

confidence: 56%

Section: Bf06 Vocs Regulates Plant Uptake Of Se By Upregulating Of Sumentioning

confidence: 68%

Section: Transcriptomic Analysis Of Bf06 Vocs-regulated Gene Profilesmentioning

confidence: 99%

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Enhanced Iron and Selenium Uptake in Plants by Volatile Emissions of Bacillus amyloliquefaciens (BF06)

et al. 2017

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“…We therefore attach great importance to the QTL located on 3D, which were found to be associated with both root characteristics and grain Se concentration. As plants uptake mineral elements from the soil via the roots, we believe that Qse-3D improves Se concentration by controlling the root morphology and architecture, or Se phytoavailability (White 2016a). Future work should thus aim to determine the candidate genes that might control Se concentrations.…”

Section: Molecular Marker Utilizationmentioning

confidence: 99%

“…Associations between genotypic variation and mineral element concentrationn wheat have been reported (Chao et al 2014, White 2016a, and improving the concentration in minerals is achievable through the utilization of germplasm resources (Lyons et al 2005). We found higher genotypic variation in the synthetic hexaploid lines at low Se conditions, implying that Se concentrations in the tissues are associated with the wheat genotype.…”

Section: Potential Use Of Synthetic Wheatmentioning

confidence: 99%

A QTL located on chromosome 3D enhances the selenium concentration of wheat grain by improving phytoavailability and root structure

Pei

Yang

et al. 2018

Plant Soil

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Background and aims As an essential mineral element, selenium (Se) plays a critical role in human health. Given the low concentrations (<100 mg Se kg-1) of Se in staple crops, the identification of genetic resources with enriched Se, as well as the genes controlling Se concentration, is valuable for the marker-assisted selection of Se-rich varieties. Methods We determined the chromosomal quantitative trait (QTL) for Se concentration over two consecutive plant growth cycles using recombinant inbred lines (RILs) treated with two different concentrations of Se under both field-grown and hydroponic conditions. Results Several QTL for Se concentration were detected across the different treatments. Significant genotypic variation in the tissues of the RIL was found at Sedeficicencycondition. Notably, a QTL located on 3D (interval 214.00-218.00, Qse.sau-3D) affected root length and Se concentration in the leaves and grains, suggesting the existence of the same allele with distinctly different functions. However, the QTL for the agronomic traits measured (plant height, flowering time, and tillering number) and Se concentration were not found to be located on the same chromosomal regions, suggesting that marker-assisted selection for both traits is feasible. Se concentrations in the grains were primarily determined by the mineral transport efficiency of the lines, and the line with the highest Se concentration in the grains always possessed larger, more fibrous root systems. The concentrations of Se in the plant tissues were in the order of: root > stem > grain. Conclusions This is the first study to document a Serich synthetic wheat line, and root structure and Se grain concentration was strongly affected by QTL located on 3D.

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Total Synthesis and Functional Characterization of Selenoneine

2019

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The N-a-trimethyl 2-selenohistidine selenoneine is the selenium isolog of the natural antioxidant ergothioneine. Sulfur-toselenium substitutions are known to endow proteins and nucleic acids with special activities. In contrast, secondary metabolites that exploit selenium-specific chemistry are rare. Selenoneine therefore provides a unique opportunity to study how natural organoselenides interact with cellular processes. In this report we describe the chemical synthesis of selenoneine and other 2-selenoimidazoles. With synthetic selenoneine at hand we discovered a set of reactivities that distinguish selenoneine from ergothioneine, showing that the two compounds can fill distinct functional niches. Synthetic access to 2selenoimidazoles should pave the way to explore the pharmaceutical potential and physiological function of this heretofore inaccessible class of compounds.

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Selenium accumulation by plants

Cited by 236 publications

References 206 publications

Enhanced Iron and Selenium Uptake in Plants by Volatile Emissions of Bacillus amyloliquefaciens (BF06)

Enhanced Iron and Selenium Uptake in Plants by Volatile Emissions of Bacillus amyloliquefaciens (BF06)

A QTL located on chromosome 3D enhances the selenium concentration of wheat grain by improving phytoavailability and root structure

Total Synthesis and Functional Characterization of Selenoneine

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