Silicon Affects Transcellular and Apoplastic Uptake of Some Nutrients in Plants

Mehrabanjoubani, Pooyan; Abdolzadeh, Ahmad; Sadeghipour, Hamid Reza; Aghdasi, Mahnaz

doi:10.1016/s1002-0160(15)60004-2

Cited by 49 publications

(17 citation statements)

References 48 publications

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“…Similarly, root Si application resulted in greater root Si accumulation. This is in line with the fact that most of the Si absorbed by roots is concentrated in the roots and outer portion of the epidermis of cotton (Mehrabanjoubani et al, 2015), with only a small part transported to the shoots (Le et al, 2014). After root Si application, the root accumulation of Si correlated with a decreased B content in the shoots under B toxicity, indicating the possible formation of boron-silicate complexes in the nutrient solution present in the substrate and inside the roots, which hinders B absorption and transport, as observed in spinach (Gunes et al, 2007a), wheat (Gunes et al, 2007b), and barley (Inal et al, 2009).…”

Section: Silicon Mitigates the Harmful Effects Of B Toxicity And Defisupporting

confidence: 81%

“…As reported for other crops, such as barley (Inal et al, 2009), spinach (Gunes et al, 2007a) and wheat (Gunes et al, 2007b), B-toxicity stress can be mitigated by root Si application due to the formation of B-silicate complexes in the roots, as indicated by higher B concentrations in root tissues when compared to B toxicity treatments without Si. This indicates that Si may act on B immobilization, which may prevent rootto-shoot B translocation as observed in spinach (Gunes et al, 2007a) and cotton (Mehrabanjoubani et al, 2015), resulting in decreased shoot B concentrations of plants grown under B toxicity (Gunes et al, 2007a). Moreover, leaf Si application improved the quantum efficiency of photosystem II in cotton (de Souza Ferraz et al, 2014), which favors photosynthesis.…”

Section: Introductionmentioning

confidence: 99%

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Silicon mitigates boron deficiency and toxicity in cotton cultivated in nutrient solution

Souza

Sarah

Felisberto

2019

J. Plant Nutr. Soil Sci.

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Silicon (Si) application, both via foliar application and via roots, may be promising to improve plant growth under different biotic or abiotic stresses. In the present study, we investigated whether application of Si can also mitigate the harmful effects of boron (B)‐related nutritional disorders, such as B deficiency, when the application of B is inefficient or insufficient, and B toxicity, when the soil presents high levels of B. This may enable producers to apply Si preventively, if there is a low availability of B in the environment or if B deficiency is induced during the growth season due to a water deficit reducing the plant's B absorption. The objective of this study was to investigate the influence of leaf and root Si application on alleviating the harmful effects of B deficiency and toxicity in cotton. Three experiments were carried out with cotton plants (Gossypium hirsutum cv. Bayer FM910®), using a soilless system. In a first experiment, we determined that highest plant Si concentrations were obtained with application of stabilized sodium and potassium silicate at concentrations of 0.8 g L−1 (foliar) and 0.056 g L−1 (roots). Experiment 2 indicated that the B concentrations in the nutrient solution associated with moderate B deficiency, sufficiency and moderate toxicity were 33.7, 83.6, and 130.5 µM B L−1, respectively. In Experiment 3 we evaluated the effect of optimum Si applications on the physiology and dry weight production of cotton plants subjected to B deficiency, sufficiency, and toxicity. Silicon mitigated the harmful effects of both B deficiency and toxicity by increasing whole‐plant biomass production and levels of chlorophyll a, chlorophyll b, and total chlorophyll, and reduced initial and maximum fluorescence, thereby improving the quantum efficiency of photosystem II. Collectively, these results indicate that the greatest benefit of Si in mitigating B deficiency occurred with foliar B application, while Si supplied via the nutrient solution was more effective against B toxicity.

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Section: Silicon Mitigates the Harmful Effects Of B Toxicity And Defisupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Silicon mitigates boron deficiency and toxicity in cotton cultivated in nutrient solution

Souza

Sarah

Felisberto

2019

J. Plant Nutr. Soil Sci.

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“…Similarly, exogenous supply of Si can prevent the appearance of Mn (Shi et al, 2005), Fe (Fu et al, 2012) and B (Gunes et al, 2007) toxicity symptoms. On the other hand, Si application was found to increase the uptake of K, P, Zn and Fe, when these were at low concentrations in the root zone, while reducing Ca uptake (Mehrabanjoubani et al, 2015). Sirelated mitigation of Mn and Fe deficiencies has been reported also by Maksimović et al (2012) and Pavlovic et al (2013), respectively.…”

Section: Mineral Uptake and Mobility Inside The Plantmentioning

confidence: 73%

Biostimulant activity of silicon in horticulture

Savvas

Ntatsi

2015

Scientia Horticulturae

218

139

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“…In wheat, the application of 1-10 g Si per plant increased the aerial biomass, but as the dose increased, the biomass decreased (Neu, Schaller & Dudel, 2017). In cotton (Gossypium hirsutum L.), wheat, and canola (Brassica napus L.), the application of 1.5 mmol L −1 Si increased dry weight by 8%, 30% and 30% and fresh weight by 10%, 33% and 16%, respectively (Mehrabanjoubani et al, 2015). Moreover, the pre-treatment of maize kernels with 1.5 mM Si significantly increased dry and fresh weight and leaf area of plants (Abdel Latef & Tran, 2016).…”

Section: Discussion Si Stimulates Growth Of Pepper Plants In a Hormetmentioning

confidence: 99%

Silicon induces hormetic dose-response effects on growth and concentrations of chlorophylls, amino acids and sugars in pepper plants during the early developmental stage

Trejo-Téllez

García-Jiménez

Escobar-Sepúlveda

et al. 2020

PeerJ

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Background Silicon (Si) is a beneficial element that has been proven to influence plant responses including growth, development and metabolism in a hormetic manner. Methods In the present study, we evaluated the effect of Si on the growth and concentrations of chlorophylls, total amino acids, and total sugars of pepper plants (Capsicum annuum L.) during the early developmental stage in a hydroponic system under conventional (unstressed) conditions. We tested four Si concentrations (applied as calcium silicate): 0, 60, 125 and 250 mg L−1, and growth variables were measured 7, 14, 21 and 28 days after treatment (dat), while biochemical variables were recorded at the end of the experiment, 28 dat. Results The application of 125 mg L−1 Si improved leaf area, fresh and dry biomass weight in leaves and stems, total soluble sugars, and concentrations of chlorophylls a and b in both leaves and stems. The amino acids concentration in leaves and roots, as well as the stem diameter were the highest in plants treated with 60 mg L−1 Si. Nevertheless, Si applications reduced root length, stem diameter and total free amino acids in leaves and stems, especially when applied at the highest concentration (i.e., 250 mg L−1 Si). Conclusion The application of Si has positive effects on pepper plants during the early developmental stage, including stimulation of growth, as well as increased concentrations of chlorophylls, total free amino acids and total soluble sugars. In general, most benefits from Si applications were observed in the range of 60–125 mg L−1 Si, while some negative effects were observed at the highest concentration applied (i.e., 250 mg L−1 Si). Therefore, pepper is a good candidate crop to benefit from Si application during the early developmental stage under unstressed conditions.

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Silicon Affects Transcellular and Apoplastic Uptake of Some Nutrients in Plants

Cited by 49 publications

References 48 publications

Silicon mitigates boron deficiency and toxicity in cotton cultivated in nutrient solution

Silicon mitigates boron deficiency and toxicity in cotton cultivated in nutrient solution

Biostimulant activity of silicon in horticulture

Silicon induces hormetic dose-response effects on growth and concentrations of chlorophylls, amino acids and sugars in pepper plants during the early developmental stage

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