Detection of Silica in Plants

Dayanandan, P.; Kaufman, Peter B.; Franklin, C. I.

doi:10.1002/j.1537-2197.1983.tb07909.x

Cited by 51 publications

(41 citation statements)

References 7 publications

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“…As would be expected, silica accumulates in silica bodies contained in the silica cells as shown by staining (Dayanandan et al, 1983) and energy dispersive x-ray analysis (Sakai and Sanford, 1984;Terrell and Wergin, 1979;; but it has also been found to accumulate in bulliform cells (Dayanandan et al;Parry and Smithson, 1958), trichomes (Sakai and Sanford, 1984;Terrell and Wergin, 1981), and the stomatal apparatus (Sakai and Sanford, 1984). In the one sample I examined for silica, it is obvious that the silica cells contain silica , but it is possible to discern a pattern of silica accumulation in the papillae .…”

Section: -31 106-111)supporting

confidence: 72%

Systematics of Chusquea section Chusquea, section Swallenochloa, section Verticillatae, and section Serpentes (Poaceae: Bambusoideae)

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Section: -31 106-111)supporting

confidence: 72%

Systematics of Chusquea section Chusquea, section Swallenochloa, section Verticillatae, and section Serpentes (Poaceae: Bambusoideae)

Clark

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“…Small pieces of leaves were washed in distilled water and made transparent using the technique of Stebbins [45] to see the deposition of silica in different cells at different portions (margins and midrib) of the leaves. Transverse sections of leaves, leaf sheath, stem, awn, lemma, and rachilla were prepared and stained in methyl red [10] to see the deposition of silica in different parts of plant cells.…”

Section: Methodsmentioning

confidence: 99%

Laser-Induced Breakdown Spectroscopy and Phytolith Analysis: An Approach to Study the Deposition and Distribution Pattern of Silicon in Different Parts of Wheat (Triticum aestivum L.) Plant

et al. 2012

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The distribution/deposition pattern of silicon and minerals in different parts of wheat (Triticum aestivum) plants was determined using laser-induced breakdown spectroscopy (LIBS) and phytolith analysis. The LIBS spectra of different parts of wheat plants gave spectral signature of Ca, Mg, Si, Fe, Na, K, C, H, O and N. Phytolith analysis showed that the leaves of wheat plants are the highest silicon accumulator followed by the awn, leaf sheath, lemma, rachilla and stem. The results of LIBS analysis and the phytolith analysis were in close agreement. The multivariate statistical analysis, principal component analysis (PCA), was applied to the data set of the LIBS spectra of the different parts of the wheat plants. PCA on LIBS data matrix gives PC1 (99 %) and PC2 (1 %) which explains the 100 % variance in the data set. The PCA plots discriminate the vegetative and fertile parts of the wheat plant. Furthermore, the appearance of silicon in each part of the wheat plants also demonstrates its significance in biocement production.

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“…8 The high Si content of rice husk ash (RHA) has led to interest in its use as a source of Si for plants and for the production of numerous Si-based materials.…”

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Rice Husk Ash as Raw Material for the Synthesis of Silicon and Potassium Slow‑Release Fertilizer

França¹,

Schultz²,

Borges³

et al. 2017

J. Braz. Chem. Soc.

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Rice husk ash (RHA) is a waste material produced in large quantities in many regions worldwide, and its disposal can be problematic. This work describes a method for using RHA to synthesize silicon and potassium slow-release fertilizer. The extraction of silica from RHA was accomplished by alkaline leaching with KOH. Different KOH concentrations and reaction times were evaluated and the best production of K 2 SiO 3 solution was achieved using 6 mol L -1 and 6 h, respectively. The fertilizer was synthesized by the reaction of K 2 SiO 3 with KAlO 2 in aqueous medium, followed by calcination at 500 °C. X-ray fluorescence (XRF) and X-ray diffraction (XRD) analyses indicated that the fertilizer composition was similar to mineral kalsilite. Solubility essays indicated lower K + and Si 4+ release percentage in neutral medium. Kinetic mechanisms of release tests can be well explained by the pseudo-second order model. The proposed synthesis seems to be a viable process offering economic and environmental benefits.Keywords: rice husk ash, silicon, potassium, slow-release fertilizer IntroductionNowadays, one of the most important goal of agronomic management is the development of environmentalfriendly fertilizers, which promote a sustainable nutrient management to ensure growth crop yield.1 One method of reducing fertilizer nutrient losses involves the use of slowrelease fertilizers, which have been designed to gradually release nutrients to plants at a rate to coincide with the requirement of crops. The advantages of using slow-release fertilizers instead of the conventional type are various, such as the increased efficiency of the fertilizer, the continuous supply of nutrients for a prolonged period and a decrease of nutrient losses by volatilization and leaching out to surface and ground water. 2,3 Potassium (K) is known as one of the most required nutrient during plant growth. K plays an important role in the energy state of the plant, translocation and storage of assimilates and maintenance of water in plant tissues. 4 For many crops, silicon (Si) is also an important nutrient and its availability to plants is often associated to increase of crop yield. 5Plants under intensive cultivation that require high absorption of Si, such as rice, sugar cane, and grasses in general, can quickly deplete the soluble Si content of soil. This element, therefore, needs to be replaced by fertilization. The application of Si fertilizer can influence plants in two ways: (i) by improvement of the fertility and chemical properties of the soil, and (ii) by direct effects on plant growth and development.6 Positive effects that have been reported include improved plant structure, such as upright leaves and stems, 7 and increased resistance to fungi and insects due to deposition of Si under the plant cuticle. 8 The high Si content of rice husk ash (RHA) has led to interest in its use as a source of Si for plants and for the production of numerous Si-based materials.9 RHA is generated after burning the rice husk, which is a waste from the ric...

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Detection of Silica in Plants

Cited by 51 publications

References 7 publications

Systematics of Chusquea section Chusquea, section Swallenochloa, section Verticillatae, and section Serpentes (Poaceae: Bambusoideae)

Systematics of Chusquea section Chusquea, section Swallenochloa, section Verticillatae, and section Serpentes (Poaceae: Bambusoideae)

Laser-Induced Breakdown Spectroscopy and Phytolith Analysis: An Approach to Study the Deposition and Distribution Pattern of Silicon in Different Parts of Wheat (Triticum aestivum L.) Plant

Rice Husk Ash as Raw Material for the Synthesis of Silicon and Potassium Slow‑Release Fertilizer

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