Functions of Parenchyma Cells in Wood; Material Transport and Heartwood Formation

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  • 木部における柔細胞の役割，物質移動と心材形成
  • モクブ ニ オケル ジュウサイボウ ノ ヤクワリ,ブッシツ イドウ ト シンザイ ケイセイ

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The parenchyma cells in wood survive and keep their physiological activity for a long time, from a few years to several decades, whereas the vessel elements, tracheids, and wood fiber, which function as water conduit or strengthen the stem, die immediately after cell maturation. Parenchyma cells play important roles for the trees' longevity. Functional material transport is necessary for the parenchyma cells to store and recycle the materials for the trees' growth. Also, during heartwood formation, reserve materials convert into heartwood substances and cell death of the parenchyma cells occurs. This text focuses on material transport and heartwood formation, and reviews recent studies as well as presents challenges to future studies of these functions.

Journal

  • Mokuzai Gakkaishi

    Mokuzai Gakkaishi 61 (3), 131-135, 2015

    The Japan Wood Research Society

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