The Impact of Phosphorus Supply on Selenium Uptake During Hydroponics Experiment of Winter Wheat (Triticum aestivum) in China

Liu, Hongen; Shi, Zhiwei; Li, Jinfeng; Zhao, Peng; Qin, Shiyu; Nie, Zhaojun

doi:10.3389/fpls.2018.00373

Cited by 31 publications

(19 citation statements)

References 49 publications

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“…Ionome‐wide information is also important when studying the consequences of evolution on the flow of nutrients between organisms and their environment, as the availability, uptake, and utilization of specific macronutrients is often dependent on the dynamics of trace elements (Lind & Jeyasingh ; Liu et al . ).…”

Section: Introductionmentioning

confidence: 97%

“…Increased elemental resolution provides an enhanced ability to identify the axes of ecologically relevant variation among populations, which could be useful in identifying the phenotypic underpinnings of local adaptation (Huang & Salt 2016;Goos et al 2017). Ionome-wide information is also important when studying the consequences of evolution on the flow of nutrients between organisms and their environment, as the availability, uptake, and utilization of specific macronutrients is often dependent on the dynamics of trace elements (Lind & Jeyasingh 2018;Liu et al 2018).…”

Section: Introductionmentioning

confidence: 99%

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Ionome and elemental transport kinetics shaped by parallel evolution in threespine stickleback

et al. 2019

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Evidence that organisms evolve rapidly enough to alter ecological dynamics necessitates investigation of the reciprocal links between ecology and evolution. Data that link genotype to phenotype to ecology are needed to understand both the process and ecological consequences of rapid evolution. Here, we quantified the suite of elements in individuals (i.e., ionome) and differences in the fluxes of key nutrients across populations of threespine stickleback. We find that allelic variation associated with freshwater adaptation that controls bony plating is associated with changes in the ionome and nutrient recycling. More broadly, we find that adaptation of marine stickleback to freshwater conditions shifts the ionomes of natural populations and populations raised in common gardens. In both cases ionomic divergence between populations was primarily driven by differences in trace elements rather than elements typically associated with bone. These findings demonstrate the utility of ecological stoichiometry and the importance of ionome‐wide data in understanding eco‐evolutionary dynamics.

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Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Ionome and elemental transport kinetics shaped by parallel evolution in threespine stickleback

et al. 2019

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“…Zhang et al (2014) reported that OsPT2, a phosphate transporter, is involved in selenite uptake, thereby indicating that a competitive relationship might exist between P and Se. Studies of wheat have also suggested that selenite absorption in plants was suppressed by increasing P supply (Liu et al, 2018) and was stimulated by P deficiency (Li et al, 2008). However, the contradictory results demonstrated that P supply elevated the Se concentration in alfalfa (Carter et al, 1972) and berseem (Singh and Malhotra, 1976).…”

Section: Introductionmentioning

confidence: 99%

“…Hence, sufficient knowledge of Se speciation in plants is required when assessing the effects of Se biofortification in humans. Recently, Liu et al (2018) adopted a sequential extraction method to determine the chemical forms of Se in wheat plants. However, these forms are considerably different from the actual Se species associated with Se metabolism compounds in plant tissues that can be extracted by enzymatic hydrolysis.…”

Section: Introductionmentioning

confidence: 99%

Selenite Uptake and Transformation in Rice Seedlings (Oryza sativa L.): Response to Phosphorus Nutrient Status

Wang

et al. 2020

Front. Plant Sci.

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Selenite and phosphate share similar uptake mechanisms, as a phosphate transporter is involved in the selenite uptake process. However, the mechanism by which selenium (Se) transformation in plants is mediated by phosphorus (P) remains unclear. In this hydroponic study, the absorption, translocation, and biotransformation of Se in selenitetreated rice (Oryza sativa L.) seedlings were investigated under varying P nutrient status. The results showed that P-deficient cultivation increased the Se concentration in roots with Se-only treatment by 2.1 times relative to that of the P-normal condition. However, co-treating roots with additional P caused the Se concentration to decline by 20 and 73% compared to Se treatment alone under P-normal and P-deficient cultivation, respectively. A similar pattern was also observed in Se uptake by rice roots. With an Se-transfer factor elevated by 4.4 times, the shoot Se concentration was increased by 44% with additional P supply compared to the concentration under Se-only treatment of P deficiency; however, no significant differences were observed regarding P-normal cultivation. P deficiency increased the Se percentage by 28% within the cell wall, but reduced it by 60% in the soluble fraction of Se-only treated roots relative to that of the P-normal condition. Contrarily, compared with the Se-only treatment under P deficiency, additional P supply enhanced Se storage in the root soluble fraction by 1.3 times. The opposite tendency was observed for rice shoots. Moreover, P deficiency reduced the proportion of SeMet by 22%, but increased MeSeCys by 1.3 times in Se-only treated roots compared to those under the P-normal condition. Interestingly, MeSeCys was not detected when additional P was added to the two cultivation conditions. Unlike in the roots, only SeMet was generally detected in the rice shoots. The results demonstrate that the P nutrient status strongly affects the Se biofortification efficiency in rice seedlings by altering the Se subcellular distribution and speciation.

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“…In previous studies we demonstrated that increasing the P supply decreased the Se concentration in all tissues and the transport of Se from root to shoot in winter wheat seedlings. These effects of increasing P, observed during a hydroponic experiment, were due to the inhibited absorption of Se, the inhibited distribution of Se in the root cell wall and the enhanced distribution of Se in root soluble fractions (such as vacuoles) by P supply ( Liu et al., ). The objectives of the present study were to further investigate the interactive effects of P and Se application on: (1) the concentrations and ratios of organic and inorganic Se, (2) the Se‐protein, Se‐nucleic acid and Se‐polysaccharide concentrations and their shares in the organic Se fraction, and (3) the Se concentrations in albumin, glutenin, gliadin and globulin protein subfractions, and their shares in the Se‐protein in grains of winter wheat.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus application alters concentrations and proportions of organic Se forms in the grain of winter wheat

Nie

Zhu

et al. 2020

J. Plant Nutr. Soil Sci.

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A deficiency or excess of selenium (Se) can cause disease in the human body, and the dietary intake of organic forms of Se is considered the preferable way to satisfy the Se demand in humans. P application decreases Se uptake and thus also Se concentrations in grains of crops, but little is known about how the P application level may affect the organic forms of Se in the grain of winter wheat. A pot trial with three P levels (0, 80, and 160 mg P kg -1 soil) and three Se levels (0, 0.5, and 1 mg Se kg -1 soil) was conducted to investigate the effect of P application on inorganic and organic Se forms, Se bound to protein, polysaccharide, and nucleic acid as well as Se in different protein fractions in the grain of winter wheat. Overall, the concentrations of total Se, and of Se in all analyzed forms, increased with increasing Se application regardless of the rate of P application. In the absence of Se, P application did not have a significant effect on the concentrations of any of the measured Se forms. However, in the presence of Se, increasing P application significantly decreased the concentration of Se of each form. The different rates of P and Se application influenced the proportion of each form of Se in different ways. Increasing levels of P application decreased the concentration of each form of Se in the grain of winter wheat, most likely by a combination of a dilution effect due to enhanced grain yield, and an inhibited Se uptake. Despite an overall decrease in grain Se-protein, P application might improve the quality of wheat flour by enhancing the accumulation of Se in organic forms such as Se-nucleic acids and Se-polysaccharides, as well as the Se in the gliadin and glutenin fractions in the grain.

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The Impact of Phosphorus Supply on Selenium Uptake During Hydroponics Experiment of Winter Wheat (Triticum aestivum) in China

Cited by 31 publications

References 49 publications

Ionome and elemental transport kinetics shaped by parallel evolution in threespine stickleback

Ionome and elemental transport kinetics shaped by parallel evolution in threespine stickleback

Selenite Uptake and Transformation in Rice Seedlings (Oryza sativa L.): Response to Phosphorus Nutrient Status

Phosphorus application alters concentrations and proportions of organic Se forms in the grain of winter wheat

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