Role of Silicon in Enrichment of Plant Nutrients and Protection from Biotic and Abiotic Stresses

Tripathi, Durgesh Kumar; Singh, Vijay Pratap; Gangwar, Savita; Prasad, Sheo Mohan; Maurya, Jagat Narayan; Chauhan, Devendra Kumar

doi:10.1007/978-1-4614-8830-9_2

Cited by 41 publications

(21 citation statements)

References 127 publications

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“…Furthermore, the studies reveal that Zn + is required for the synthesis of IAA, and upon addition of Si in the growth medium, Zn content in plant increased. Hence, it is suggested that addition of Si might have increased IAA synthesis in plants by enhancing the Zn content, thus maintaining growth of plants under heavy metal (Al, Cd, Cr) stress (Tripathi et al, 2014). In rice it was observed, Zn content in grain might be due to the presence of increased amount of silicon solubilizers in soil solution which promote the availability of zinc in soil solution.…”

Section: Issn: 2319-7706 Volume 6 Number 11 (2017) Pp 4164-4175mentioning

confidence: 99%

Ameliorative Effects of Silicon Solublizers on Grain Qualities in Different Rice Genotypes (Oryza sativa L.)

Sarma¹,

Shankhdhar²

2017

Int.J.Curr.Microbiol.App.Sci

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Section: Issn: 2319-7706 Volume 6 Number 11 (2017) Pp 4164-4175mentioning

confidence: 99%

Ameliorative Effects of Silicon Solublizers on Grain Qualities in Different Rice Genotypes (Oryza sativa L.)

Sarma¹,

Shankhdhar²

2017

Int.J.Curr.Microbiol.App.Sci

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“…Silica is usually found in the plant bodies named as phytoliths or opal phytolith in which hydrogen get bonded with cellulose molecules in the cell walls as silicon dioxide, i.e., SiO 2 .-nH 2 O (Kaufman et al 1999;Tripathi et al 2012a, b). Although silica is not considered as an essential element for the plants in the classical sense, however, many studies demonstrated that silica is an important constituent of plant cell wall which provides rigidity to monocot leaves and it takes part in many physiological processes which increases plants resistance to abiotic and biotic stresses (Epstein 1999;Tripathi et al 2014Tripathi et al , 2016Tripathi et al , 2017. Uptake of silicon has been shown to increase the rigidity of leaves and the several other benefits to plants in dynamic environments.…”

Section: Introductionmentioning

confidence: 99%

“…Silicon is not only a structural constituent of plants but also it takes part in many physiological processes and provides protection from external stimulations (Sangster et al 2001;Tripathi et al 2012a, b). Therefore, silicon is an important component for plant growth and development under various stresses (Epstein 1999;Tripathi et al 2014Tripathi et al , 2016Tripathi et al , 2017. It has been suggested that silicon is mainly present in the form of aluminosilicates and polymeric silica, which is not readily available to the biological system (Kayongo-Male and Jia 1999).…”

Section: Introductionmentioning

confidence: 99%

Silicon bioavailability in exocarp of Cucumis sativus Linn.

et al. 2017

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Scanning electron microscopy (SEM) and electron probe micro-analyzer (EPMA) techniques have been used to detect the silicon bioavailability in the exocarp of warty cucumber surface. Warts appear at the time of anthesis and are remnant part of spines/trichomes which on further fruit maturation abscised from the exocarp. Results of EPMA and phytolith analysis clearly revealed that the surface of exocarp (fruit) of Cucumis sativus Linn. containing warts has greater quantity of silicon as compared to the other part of the fruit. Besides silicon, some other elements were also found, on the fruit exocarp and its surrounding area. The other elements are magnesium (Mg), aluminum (Al), phosphorus (P), sulfur (S), potassium (K), calcium (Ca), iron (Fe), nickel (Ni), copper (Cu), and sodium. The percentage of silica is highest followed by Ni, Ca, Al, P, Mg, Fe, S, Cu, K, and Cl. Thus, this study clearly demonstrates that Cucumis sativus Linn. fruits which are used as salads and appetizers on daily basis are loaded with silicon and other useful elements and possess numerous health benefits.

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“…Silicon is not considered essential since there is no evidence of its participation in any physiological process (CURRIE;PERRY, 2007). To date, very little information has been consolidated on the specific role of Si in plants; however, this element seems to be (directly or indirectly) involved in cellular metabolism, although its mode of action is still unclear, especially in plants under biotic and abiotic stress conditions (MA;YAMAJI, 2008;GUNTZER et al, 2012;TRIPATHI et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Leaf anatomy and gas exchange of ornamental sunflower in response to silicon application

Júnior¹,

Venegas²,

Fontes³

et al. 2017

Biosci. J.

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Silicon applied to substrate for greenhouse cultivation of ornamental pot plants can improve the yield and quality of the ornamental product; however, the possible anatomical and physiological changes caused by Si have to be assessed. Therefore, the objective of this study was to evaluate gas exchange rates and leaf anatomy of ornamental sunflower 'Sunbright' grown on a substrate amended with Si. The experiment was conducted in a greenhouse, and the treatments consisted of sunflower plants cultivated in pots containing 600 g substrate fertilized with Si at rates of 0, 0.25, 0.50, 0.75, and 1.00 g kg -1 . The treatments were arranged in randomized complete block design and four replications. Samples from the middle region of leaf blades in the sixth pair from the apex were collected and analyzed morphometrically. Epidermal trichomes were analyzed using diaphanization and scanning electron microscopy with energy-dispersive X-ray spectroscopy. The following traits were determined: leaf blade thickness, palisade and spongy parenchyma thickness, mesophyll thickness, and abaxial and adaxial epidermis thickness. Net photosynthesis, stomatal conductance and transpiration rates were determined in the fifth leaf at the beginning of the flowering stage by an infrared gas analyzer. The data were subjected to ANOVA and regression analyses. The results indicate that the ornamental sunflower 'Sunbright' accumulates Si in leaf trichomes, and that leaf thickness is not affected by Si application to the substrate; however, transpiration rates decrease while net photosynthesis rate and stomatal conductance increase in response to Si application.

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Role of Silicon in Enrichment of Plant Nutrients and Protection from Biotic and Abiotic Stresses

Cited by 41 publications

References 127 publications

Ameliorative Effects of Silicon Solublizers on Grain Qualities in Different Rice Genotypes (Oryza sativa L.)

Ameliorative Effects of Silicon Solublizers on Grain Qualities in Different Rice Genotypes (Oryza sativa L.)

Silicon bioavailability in exocarp of Cucumis sativus Linn.

Leaf anatomy and gas exchange of ornamental sunflower in response to silicon application

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