Silicon Contribution Via Nutrient Solution in Forage Plants to Mitigate Nitrogen, Potassium, Calcium, Magnesium, and Sulfur Deficiency

Buchelt, Antônio Carlos; Teixeira, Gelza Carliane Marques; Oliveira, Kamilla Silva; Rocha, Antônio Márcio Souza; Prado, Renato de Mello; Caione, Gustavo

doi:10.1007/s42729-020-00245-7

Cited by 53 publications

(37 citation statements)

References 39 publications

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“…The interaction of Si with potassium (K) in plants has been less well investigated than that with N and P, although many studies have reported that Si can affect tissue K concentration under stress conditions such as salinity, drought or N excess ( Kaya et al, 2006 ; Barreto et al, 2017 ; Yan et al, 2021b ). Over the past decade, an increasing number of studies have focused on the direct effect of Si on K-deprived plants ( Miao et al, 2010 ; Chen et al, 2016a , b ; Hosseini et al, 2017 ; Buchelt et al, 2020 ; dos Santos Sarah et al, 2021 ). Increased uptake of K and restored physiological performance impaired by K deficiency has been reported as the main beneficial role of Si in K-deficient plants.…”

Section: Interactions Of Silicon With Macronutrientsmentioning

confidence: 99%

“…Increased uptake of K and restored physiological performance impaired by K deficiency has been reported as the main beneficial role of Si in K-deficient plants. In soybean and some forage crops ( Panicum maximum and Brachiaria ruziziensis × Brachiaria brizanth ), Si supplementation resulted in higher K concentration in leaves ( Miao et al, 2010 ; Buchelt et al, 2020 ). In addition, Si also alleviated K-deficiency-induced membrane lipid peroxidation and oxidative stress by modulating antioxidant enzymes ( Miao et al, 2010 ; Chen et al, 2016a ).…”

Section: Interactions Of Silicon With Macronutrientsmentioning

confidence: 99%

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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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Section: Interactions Of Silicon With Macronutrientsmentioning

confidence: 99%

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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“…Indeed, dealing with Si nutrition and its role under abiotic stresses during last few years, we found soluble sugar and polyamine augmentation most probably as a mutual response [ 29 , 54 ]. Cross-talk between Si and these two nutrients (Mg and S) also was shown in two forage plants where Si increased their biomass only under Mg deficiency by increasing the uptake of Mg [ 56 ]. In this context, additional experimental evidence is needed to draw a concrete conclusion.…”

Section: Si and Macro-nutrient Deficiencymentioning

confidence: 99%

The Regulatory Role of Silicon in Mitigating Plant Nutritional Stresses

Ali¹,

Réthoré²,

Yvin³

et al. 2020

Plants

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It has been long recognized that silicon (Si) plays important roles in plant productivity by improving mineral nutrition deficiencies. Despite the fact that Si is considered as ‘quasi–essential’, the positive effect of Si has mostly been described in resistance to biotic and tolerance to abiotic stresses. During the last decade, much effort has been aimed at linking the positive effects of Si under nutrient deficiency or heavy metal toxicity (HM). These studies highlight the positive effect of Si on biomass production, by maintaining photosynthetic machinery, decreasing transpiration rate and stomatal conductance, and regulating uptake and root to shoot translocation of nutrients as well as reducing oxidative stress. The mechanisms of these inputs and the processes driving the alterations in plant adaptation to nutritional stress are, however, largely unknown. In this review, we focus on the interaction of Si and macronutrient (MaN) deficiencies or micro-nutrient (MiN) deficiency, summarizing the current knowledge in numerous research fields that can improve our understanding of the mechanisms underpinning this cross-talk. To this end, we discuss the gap in Si nutrition and propose a working model to explain the responses of individual MaN or MiN disorders and their mutual responses to Si supplementation.

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“…A possible alternative to mitigate the effect of N disorder in plants is the use of silicon (Si). Although not considered a plant nutrient, this element has beneficial effects in terms of mitigating stress caused by abiotic factors such as nutritional imbalances, improving photosynthetic efficiency and biomass production in a number of species cultivated under N deficiency [ 8 , 9 ] or N-NH 4 + toxicity [ 6 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Silicon fertigation and salicylic acid foliar spraying mitigate ammonium deficiency and toxicity in Eucalyptus spp. clonal seedlings

et al. 2021

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Nitrogen deficiency and toxicity, primarily in its ammonium form (NH4+), can suppress plant growth and development. The use of silicon (Si) or salicylic acid (SA) may be an alternative to minimize the harmful effects of nutrient imbalances caused by NH4+, thereby improving the photosynthetic efficiency of plants. The aim of the present study was to assess the action of fertigation-applied Si and SA foliar spraying in mitigating NH4+ toxicity and deficiency in eucalyptus clonal seedlings. Two experiments were performed with eucalyptus clonal seedlings (Eucalyptus urophylla x Eucalyptus grandis), in a greenhouse. Both were carried out using a 4x2 factorial design and four concentrations of NH4+ (5, 15, 30 and 60 mmol L-1), in the absence and presence of Si (2 mmol L-1), in experiment I; or with and without SA foliar application (10−2 mmol L-1), in experiment II, with six repetitions. Nitrogen content rose as a result of increasing N-NH4+ concentration in the nutrient solution, and Si supplied via the nutrient solution was efficient in increasing the Si content in eucalyptus seedlings. The rise in N-NH4+ concentration favored the maintenance of the photosynthetic apparatus, but high N-NH4+ concentration increased energy loss through fluorescence and decreased the efficiency of photosystem II. The addition of Si to the nutrient solution proved to be beneficial to the photosynthetic apparatus by decreasing F0 at 15 and 30 mmol L-1 of NH4+; and Fm at all NH4+ concentrations studied. In addition, the beneficial element also increases Fv/Fm at all NH4+ concentrations studied. SA foliar application was also efficient in reducing photosynthetic energy losses by decreasing F0 and Fm at all NH4+ concentrations studied. However, SA only increased the Fv/Fm at the high concentrations studied (30 and 60 mmol L-1 of NH4+). Nitrogen disorder by deficiency or N-NH4+ toxicity reduced shoot dry mass production. The addition of Si to the nutrient solution and SA foliar application increased shoot dry mass production at all N-NH4+ concentrations studied, and benefitted the photosynthetic apparatus by decreasing fluorescence and improving the quantum efficiency of photosystem II as well as dry mass production.

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Silicon Contribution Via Nutrient Solution in Forage Plants to Mitigate Nitrogen, Potassium, Calcium, Magnesium, and Sulfur Deficiency

Cited by 53 publications

References 39 publications

Interactions of Silicon With Essential and Beneficial Elements in Plants

Interactions of Silicon With Essential and Beneficial Elements in Plants

The Regulatory Role of Silicon in Mitigating Plant Nutritional Stresses

Silicon fertigation and salicylic acid foliar spraying mitigate ammonium deficiency and toxicity in Eucalyptus spp. clonal seedlings

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