Role of Silicon in Mediating Phosphorus Imbalance in Plants

Hu, An Yong; Xu, Shu Nan; Qin, Dong Ni; Li, Wen; Zhao, Xue Qiang

doi:10.3390/plants10010051

Cited by 32 publications

(18 citation statements)

References 131 publications

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“…Si is competing with nutrients for binding sites on soil minerals, and this increases their availability for plant uptake. The same effect is suggested to occur within the plants, with Si potentially increasing nutrient mobility in plants too, and also potentially increasing expression of P transporter genes [387]. These positive effects of Si and plant nutrition are not only shown for grasses [85,207,388] but also for legumes with Si increasing N-fixation by rhizobacteria [389].…”

Section: Effects On Biogeochemical Cycles 631 the Ecosystem Scalementioning

confidence: 86%

Silicon in the Soil–Plant Continuum: Intricate Feedback Mechanisms within Ecosystems

Katz

Puppe

Kaczorek

et al. 2021

Plants

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Plants’ ability to take up silicon from the soil, accumulate it within their tissues and then reincorporate it into the soil through litter creates an intricate network of feedback mechanisms in ecosystems. Here, we provide a concise review of silicon’s roles in soil chemistry and physics and in plant physiology and ecology, focusing on the processes that form these feedback mechanisms. Through this review and analysis, we demonstrate how this feedback network drives ecosystem processes and affects ecosystem functioning. Consequently, we show that Si uptake and accumulation by plants is involved in several ecosystem services like soil appropriation, biomass supply, and carbon sequestration. Considering the demand for food of an increasing global population and the challenges of climate change, a detailed understanding of the underlying processes of these ecosystem services is of prime importance. Silicon and its role in ecosystem functioning and services thus should be the main focus of future research.

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Section: Effects On Biogeochemical Cycles 631 the Ecosystem Scalementioning

confidence: 86%

Silicon in the Soil–Plant Continuum: Intricate Feedback Mechanisms within Ecosystems

Katz

Puppe

Kaczorek

et al. 2021

Plants

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“…Silicon can increase P availability in soil, through pH changes, decreased P sorption by soil minerals, due to competition between P and Si (as depending on Si speciation in soil solution) or by changes in the dynamics of the microbial community (e.g., P-mobilizing microorganisms) ( Owino-Gerroh and Gascho, 2005 ; Li et al, 2019 ; Schaller et al, 2019 , 2021 ). However, the effect of Si on soil availability of P is dependent on soil type, mineralogical and microbial composition, pH, as well as on type and amount of Si fertilizers ( Hu et al, 2021 ). In addition, some Si fertilizers increase soil pH and thus eradicate the rhizotoxic effect of Al 3+ in acid low P soils, thereby restoring overall root acquisition potential ( Kostic et al, 2017 ).…”

Section: Interactions Of Silicon With Macronutrientsmentioning

confidence: 99%

Interactions of Silicon With Essential and Beneficial Elements in Plants

et al. 2021

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Silicon (Si) is not classified as an essential element for plants, but numerous studies have demonstrated its beneficial effects in a variety of species and environmental conditions, including low nutrient availability. Application of Si shows the potential to increase nutrient availability in the rhizosphere and root uptake through complex mechanisms, which still remain unclear. Silicon-mediated transcriptional regulation of element transporters for both root acquisition and tissue homeostasis has recently been suggested as an important strategy, varying in detail depending on plant species and nutritional status. Here, we summarize evidence of Si-mediated acquisition, uptake and translocation of nutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), boron (B), chlorine (Cl), and nickel (Ni) under both deficiency and excess conditions. In addition, we discuss interactions of Si-with beneficial elements: aluminum (Al), sodium (Na), and selenium (Se). This review also highlights further research needed to improve understanding of Si-mediated acquisition and utilization of nutrients and vice versa nutrient status-mediated Si acquisition and transport, both processes which are of high importance for agronomic practice (e.g., reduced use of fertilizers and pesticides).

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“…So far, the proportions of modification of this beneficial element in nutrient metabolism and its implications for the sustainability of agricultural systems are unknown.The beneficial interaction of P and Si is possible to occur in two ways resulting in the improvement of P metabolism, being the improvement of the efficiency of absorption and the increase of efficiency of use by tissues [ 39 ]. In fact, several reports are found in the literature on stressed plants about the beneficial effect of Si in increasing the P concentration [ 33 , 46 ]. Evidence indicated that Si improves the absorption of P by increasing the biosynthesis of exudates, such as malate and citrate, which have the role of competing with P for adsorption sites or, even, forming complexes of Al and Fe, increasing the availability of P in the soil solution [ 46 , 47 ].…”

Section: Discussionmentioning

confidence: 99%

“…In fact, several reports are found in the literature on stressed plants about the beneficial effect of Si in increasing the P concentration [ 33 , 46 ]. Evidence indicated that Si improves the absorption of P by increasing the biosynthesis of exudates, such as malate and citrate, which have the role of competing with P for adsorption sites or, even, forming complexes of Al and Fe, increasing the availability of P in the soil solution [ 46 , 47 ].…”

Section: Discussionmentioning

confidence: 99%

New approaches to the effects of Si on sugarcane ratoon under irrigation in Quartzipsamments, Eutrophic Red Oxisol, and Dystrophic Red Oxisol

et al. 2023

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Background C:N:P homeostasis in plants guarantees optimal levels of these nutrients in plant metabolism. H However, one of the causes to the effects of deficit irrigation is the loss of C:N:P homeostasis in leaves and stems that causes reduction in the growth of sugarcane. Being able to measure the impact of water deficit on C:N:P homeostasis in plants from the stoichiometric ratios of the concentrations of these nutrients in leaves and stems. This loss causes a decrease in nutritional efficiency, but can be mitigated with the use of silicon. Silicon favors the homeostasis of these nutrients and crop productivity. The magnitude of this benefit depends on the absorption of Si by the plant and Si availability in the soil, which varies with the type of soil used. Thus, this study aims to evaluate whether the application of Si via fertigation is efficient in increasing the absorption of Si and whether it is capable of modifying the homeostatic balance of C:N:P of the plant, causing an increase in nutritional efficiency and consequently in the production of biomass in leaves and stems of sugarcane ratoon cultivated with deficient and adequate irrigations in different tropical soils. Results Water deficit caused biological losses in concentrations and accumulation of C, N, and P, and reduced the nutrient use efficiency and biomass production of sugarcane plants cultivated in three tropical soils due to disturbances in the stoichiometric homeostasis of C:N:P. The application of Si increased the concentration and accumulation of Si, C, N, and P and their use efficiency and reduced the biological damage caused by water deficit due to the modification of homeostatic balance of C:N:P by ensuring sustainability of the production of sugarcane biomass in tropical soils. However, the intensity of attenuation of such deleterious effects stood out in plants cultivated in Eutrophic Red Oxisols. Si contributed biologically by improving the performance of sugarcane ratoon with an adequate irrigation due to the optimization of stoichiometric ratios of C:N:P; increased the accumulation and the use efficiency of C, N, and P, and promoted production gains in biomass of sugarcane in three tropical soils. Conclusion Our study shows that fertigation with Si can mitigate the deleterious effects of deficient irrigation or potentiate the beneficial effects using an adequate irrigation system due to the induction of a new stoichiometric homeostasis of C:N:P, which in turn improves the nutritional efficiency of sugarcane cultivated in tropical soils.

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Role of Silicon in Mediating Phosphorus Imbalance in Plants

Cited by 32 publications

References 131 publications

Silicon in the Soil–Plant Continuum: Intricate Feedback Mechanisms within Ecosystems

Silicon in the Soil–Plant Continuum: Intricate Feedback Mechanisms within Ecosystems

Interactions of Silicon With Essential and Beneficial Elements in Plants

New approaches to the effects of Si on sugarcane ratoon under irrigation in Quartzipsamments, Eutrophic Red Oxisol, and Dystrophic Red Oxisol

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