บทคัดย่องานวิจัย

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Cell wall composition of calcium-treated apples inoculated with Botrytis cinerea.

Tobias, R.B., Conway, W.S., Sams, C.E., Gross, K.C., and Whitaker, B.D.

Phytochemistry.Volume 32, Number 1, Jan 1993. Pages 35-39.

1993

บทคัดย่อ

Cell wall composition of calcium-treated apples inoculated with Botrytis cinerea.

The role of calcium in maintaining cell wall integrity was investigated in cortical tissue of apple fruit. Carbohydrate, phenolic, protein and mineral element composition were determined in cell walls of high- and low-calcium content fruit inoculated with Botrytis cinerea. Cell walls in fungal-infected tissue of low-calcium fruit showed a decrease in non-cellulosic polysaccharides containing galacturonosyl, rhamnosyl, arabinosyl, xylosyl and galactosyl moieties and increases in cellulose, wall-bound phenolics, protein and mineral elements. In infected tissue of high-calcium fruit, the compositional changes in the cell wall were generally smaller compared with those observed in the low-calcium treatment. The results of this investigation indicate that the effect of calcium in reducing decay is associated with maintaining cell wall structure by delaying and/or modifying chemical changes in cell wall composition.