Abstract
Silicon (Si) is the second most abundant element in the Earth’s crust and exerts beneficial effects on plant growth and production by alleviating both biotic and abiotic stresses including diseases, pests, lodging, drought and nutrient imbalance. Silicon is taken up by the roots in the form of silicic acid, a noncharged molecule. Recently both influx (Lsi1) and efflux (Lsi2) transporters for silicic acid have been identified in gramineous plants including rice, barley and maize. Lsi1 and its homologs are influx Si transporters, which belong to a Nod26-like major intrinsic protein (NIP) subfamily in the aquaporin protein family. They are responsible for the transport of Si from the external solution to the root cells. On the other hand, Lsi2 and its homologs are efflux Si transporters, belonging to putative anion transporters and are responsible for the transport of Si out of the cells toward the xylem. All influx transporters show polar localization at the distal side. Among efflux transporters, Lsi2 in rice shows polar localization at the proximal side, but that in barley and maize does not show polar localization. The cell-specificity of localization of Si transporters and expression patterns are different between species. Rice Si transporters are also permeable to arsenite.
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References
Sripanyakorn S, Jugdaohsingh R, Thompson RPH et al. Dietary silicon and bone health. Nutr Bull 2005; 30:222–230.
Lopez PJ, Descles J, Allen AE et al. Prospects in diatom research. Curr Opin Biotech 2005; 16:180–186.
Epstein E, Bloom AJ. Mineral Nutrition of Plants: Principles and Perspectives, 2nd ed. New York: John Wiley and Sons, 2006.
Ma JF, Takahasi E. Soil, Fertilizer and Plant Silicon Research in Japan. Amsterdam: Elsevier Science, 2002.
Ma JF, Yamaji N. Silicon uptake and accumulation in higher plants. Trends Plant Sci 2006; 11:392–397.
Ma JF, Yamaji N. Functions and transport of silicon in plants. Cell Mol Life Sci 2008; 65:3049–3057.
Ma JF. Role of silicon in enhancing the resistance of plants to biotic and abiotic stresses. Soil Sci Plant Nutr 2004; 50:11–18.
Fauteux F, Remus-Borel W, Menzies JG et al. Silicon and plant disease resistance against pathogenic fungi. FEMS Microbio Lett 2005; 249:1–6.
Savant NK, Snyder GH, Datnoff LE. Silicon management and sustainable rice production. Advan Agron 1997; 58:151–199.
Cotterill JV, Watkins RW, Brennon CB et al. Boosting silica levels in wheat leaves reduces grazing by rabbits. Pest Manag Sci 2007; 63:247–253.
Belanger RR, Benhamou N, Menzies JG. Cytological evidence of an active role of silicon in wheat resistance to powdery mildew (Blumeria graminis f. sp tritici). Phytopathology 2003; 93:402–412.
Fawe A, Abou-Zaid M, Menzies JG et al. Silicon-mediated accumulation of flavonoid phytoalexins in cucumber. Phytopathology 1998; 88:396–401.
Rodrigues FA, Mcnally DJ, Datnoff LE et al. Silicon enhances the accumulation of diterpenoid phytoalexins in rice: A potential mechanism for blast resistance. Phytopathology 2004; 94:177–183.
Remus-Borel W, Menzies JG, Belanger RR. Silicon induces antifungal compounds in powdery mildew-infected wheat. Physiol Mol Plant Pathol 2005; 66:108–115.
Takahashi E, Hino K. Silicon uptake by plant with special reference to the forms of dissolved silicon. Jap J Soil Sci Manure 1978; 49:357–360.
Ma JF, Tamai K, Yamaji N et al. A silicon transporter in rice. Nature 2006; 440:688–691.
Tamai K, Ma JF. Reexamination of silicon effects on rice growth and production under field conditions using a low silicon mutant. Plant Soil 2008; 307:21–27.
Ma JF, Tamai K, Ichii M et al. A rice mutant defective in active Si uptake. Plant Physiol 2002; 130:2111–2117.
Ma JF, Mitani M, Nagao S et al. Characterization of Si uptake system and molecular mapping of Si transporter gene in rice. Plant Physiol 2004; 136:3284–3289.
Yamaji N, Ma JF. Spatial distribution and temporal variation of the rice silicon transporter Lsi1. Plant Physiol 2007; 143:1306–1313.
Ma JF, Nishimura K, Takahashi E. Effect of silicon on the growth of rice plant at different growth stages. Soil Sci Plant Nutri 1989; 35:347–356.
Ma JF, Goto S, Tamai K et al. Role of root hairs and lateral roots in silicon uptake by rice. Plant Physiol 2001; 127:1773–1780.
Mitani N, Yamaji N, Ma JF. Characterization of substrate specificity of a rice silicon transporter, Lsi1. Pflugers Archiv-Eur J Physiol 2008; 456:679–686.
Ma JF, Yamaji N, Mitani N et al. Transporters of arsenite in rice and their role in arsenic accumulation in rice grain. Proc Natl Acad Sci 2008; 105:9931–9935.
Forrest KL, Bhave M. Major intrinsic proteins (MIPs) in plants: a complex gene family with major impacts on plant phenotype. Funct Integr Genomics 2007; 7:263–289.
Wallace IS, Roberts DM. Distinct transport selectivity of two structural subclasses of the nodulin-like intrinsic protein family of plant aquaglyceroporin channels. Biochemistry 2005; 44:16826–16834.
Ilan B, Tajkhorshid E, Schulten K et al. Electrostatic tuning of permeation and selectivity in aquaporin water channels. Biophys J 2003; 85:2884–2899.
Dean RM, Rivers RL, Zeidel ML et al. Purification and functional reconstitution of soybean nodulin 26. An aquaporin with water and glycerol transport properties. Biochemistry 1999; 38:347–353.
Choi WG, Roberts DM. Arabidopsis NIP2;1: A major intrinsic protein transporter of lactic acid induced by anoxic stress. J Biol Chem 2007; 282:24209–24218.
Wallace IS, Roberts DM. Homology modeling of representative subfamilies of Arabidopsis major intrinsic proteins. Classification based on the aromatic/arginine selectivity filter. Plant Physiol 2004; 135:1059–1068.
Takano J, Wada M, Ludewig U et al. The Arabidopsis major intrinsic protein NIP5;1 is essential for efficient boron uptake and plant development under boron limitation. Plant Cell 2006; 18:1498–1509.
Wang Y, Schulten K, Tajkhorshid E. What makes an aquaporin a glycerol channel? A comparative study of AqpZ and GlpF. Structure 2005; 13:1107–1118.
Agre P, Kozono D. Aquaporin water channels: molecular mechanisms for human diseases. FEBS Lett 2003; 555:72–78.
Chiba Y, Yamaji N, Mitani N et al. HvLsi1 is a silicon influx transporter in barley. Plant J 2009; 57:810–818.
Mitani N, Yamaji N, Ma JF. Identification of maize silicon influx transporters. Plant Cell Physiol 2009; 50:5–12.
Ma JF, Yamaji N, Tamai K et al. Genotypic difference in Si uptake and expression of Si transporter genes in rice. Plant Physiol 2007; 145:919–924.
Ma JF, Yamaji N, Mitani N et al. An efflux transporter of silicon in rice. Nature 2007; 448:209–211.
Mitani N, Chiba Y, Yamaji N et al. Identification of silicon efflux transporters in maize and barley reveals their different silicon uptake system from rice. Plant Cell 2009; 21:2133–2142.
Mitani N, Ma JF, Iwashita T. Identification of silicon form in the xylem of rice (Oryza sativa L.). Plant Cell Physiol 2005; 46:279–283.
Casey WH, Kinrade SD, Knight CT et al. Aqueous silicate complexes in wheat, Triticum aestivum L. Plant Cell Envion 2003; 27:51–54.
Yamaji N, Mitatni N, Ma JF. A transporter regulating silicon distribution in rice shoots. Plant Cell 2008; 20:1381–1389.
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Ma, J.F. (2010). Silicon Transporters in Higher Plants. In: Jahn, T.P., Bienert, G.P. (eds) MIPs and Their Role in the Exchange of Metalloids. Advances in Experimental Medicine and Biology, vol 679. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-6315-4_8
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DOI: https://doi.org/10.1007/978-1-4419-6315-4_8
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