Increased supply of boron to swiss chard plants did not affect the level of boron in a cell wall-bound form: A possible application to the diagnosis of B nutrition of plants
2001
Matoh, T. (Kyoto Univ. (Japan)) | Matsuda, A. | Akaike, R. | Hara, Y. | Kobayashi, M.
Swiss chard plants were water-cultured under various B levels ranging from 0.01 to 20 g B m sup(-3) culture solutions for 4 weeks. The B content of the shoot increased with the increase in the B supply. The increase, however, was entirely ascribed to acetate buffer (20 mol m sup(-3), pH 4.0)-soluble B, and the content of acetate buffer-insoluble, cell wall-bound B did not increase. More than ca. 80% of the cell wall-bound B was associated with rhamnogalacturonan 2 under various B levels. The amount of acetate buffer-soluble B could be estimated from the B levels in the expressed leaf sap.
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