Genotypic variation in silicon concentration of barley grain
Rent the article at a discountRent now
* Final gross prices may vary according to local VAT.Get Access
Soluble silicon (Si) in foods and drinks has been suggested to have a protective effect against neurotoxicity of Al. We investigated the genotypic variation in Si concentration of barley grain, which has many uses including in livestock feeds, malts for beer and whisky, and some foods for human consumption. Two collections of barley, grown in the same field, were subjected to analysis; 274 standard varieties selected at the Barley Germplasm Center of the Research Institute for Bioresources, Okayama University (SV), and 135 varieties from the Barley Core Collection of Americans (BCCAM). The Si concentration of barley grain showed large variation, ranging from 0 (under detection) to 3600 mg kg−1 in SV and from 0 to 3800 mg kg−1 in BCCAM barleys. The Si concentration was much lower in hull-less barley than in hulled barley. The Si concentration of two-row barley was similar to that of six-row barley, suggesting that Si concentration is not affected by the number of spike rows. Si concentration also did not differ with the origin of the barley variety. More than 80% of total Si was localized in the hull. The Si concentration of the hull was between 15 343 and 27 089 mg kg−1 in the varieties tested. A close correlation was obtained between the Si concentrations of barley grains harvested in different years, suggesting that the variation in Si concentration of barley grain is controlled genetically. These results provide fundamental data for breeding Si-rich cultivars.
Bellia J D, Birchall J D and Roberts N B 1994 Beer: a dietary source of silicon. Lancet 343, 235.
Birchall J D 1990 The role of silicon in biology. Chem. Brit. 26, 141–144.
Carlisle E M 1972 Silicon: An essential element for the chick. Science 178, 619–621.
Carlisle E M and Curran M J 1987 Effect of dietary silicon and aluminium on silicon and aluminium levels in rat brain. Alzheimer Dis. Assoc. Disord 1, 83–89.
Edwardson J A, Moore P B, Ferrier I N, Lilley J S, Newton G W A, Barker J, Templar J and Day J P 1993 Effect of silicon on gastrointestinal absorption of aluminium. Lancet 342, 211–212.
Epstein E 1999 Silicon. Annu. Rev. Plant Physiol. Plant Mol. Biol. 50, 641–664.
Exley C and Korchazhkina O 2001 The association of aluminium and beta amyloid in Alzheimer's disease. In Aluminium and Alzheimer's Disease. Ed. C Exley. pp. 421–433. Elsevier Science, The Netherlands.
Hayward D W and Parry D W 1973 Electron-probe microanalysis studies of silica distribution in barley (Hordeum sativum L.). Ann. Bot. 37, 579–591.
Hayward D W and Parry D W 1980 Scanning electron microscopy of silica deposits in the culms, floral bracts and awns of barley (Hordeum sativum Jess.). Ann. Bot. 46, 541–548.
Jones L H P and Handreck K A 1967 Silica in soils, plants and animals. Adv. Agron. 19: 107–149.
Ma J F 2002 Beneficial elements: Si and Na. In Encyclopedia of Soil Science. pp. 1201–1205. Marcel Dekker, New York.
Ma J F, Miyake Y and Takahashi E 2001 Silicon as a beneficial element for crop plants. In Silicon in Agriculture. Eds. L E Datnoff, G H Snyder and G H Korndorfer. pp. 17–39. Elsevier Science, The Netherlands.
Okuda A and Takahashi E 1961 Studies on the physiological role of silicon in crop plant. Part 4 Effect of silicon on the growth of barley, tomato, radish, green onion, Chinese cabbage and their nutrients uptake. J. Sci. Soil Manure, Jpn. 32, 623–626.
O'Neill C, Jordan P, Bhatt T and Newman R 1986 Silica and oesophageal cancer. Chiba Found. Symp. 121, 214–230.
Schwarz K and Milne D B 1972 Growth-promoting effects of silicon in rats. Nature 239, 333–334.
Takahashi E and Hino K 1978 Silica uptake by plant with special reference to the forms of dissolved silica. J. Sci. Soil Manure. Jpn. 49, 357–360.
Tanaka T 1985 Silicon and mammals. Bull. Tottori Univ. 9, 1–6.
- Genotypic variation in silicon concentration of barley grain
Plant and Soil
Volume 249, Issue 2 , pp 383-387
- Cover Date
- Print ISSN
- Online ISSN
- Kluwer Academic Publishers
- Additional Links
- barley grain
- genotypical difference
- Si concentration
- Si localization
- Industry Sectors
- Author Affiliations
- 1. Faculty of Agriculture, Kagawa University, Ikenobe 2393, Miki-cho, Kita-gun, Kagawa, 761-0795, Japan
- 2. CREST, JST, Japan Science and Technology Corporation, Japan
- 3. Research Institute for Bioresources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan