反応木:その構造と機能:木化により,垂直に傾いている木の幹を垂直に戻すための活性力が発生する可能性があります

G Scurfield

Science (New York, N.Y.)

|February 16, 1973

まとめ

樹幹は,樹幹を垂直に再方向化するために収縮または膨張する特殊な木材である反応性木材を通して曲げることで回復します. この木,この木.

科学分野:

植物生物学植物生物学
ウッド・サイエンスウッド・サイエンス
バイオメカニカルエンジニアリング

背景:

樹木は,茎が垂直から移動すると,驚くべき回復メカニズムを示します.
反応木として知られる,曲げられたまたは傾いた茎の非対称な半径成長は,方向転換において重要な役割を果たします.
反応木の形成は,硬木と軟木の間で異なっており,幹の回復に影響を与えます.

研究の目的:

移転後の木々の幹の方向転換のメカニズムを調査する.
幹の回復における反応木の機能的重要性を明らかにする.
幹の方向転換に起因する原点と活性力を特定する.

主な方法:

幹の移動と非対称な成長による機械的な影響の分析.
幹の回復における反応木の役割を実証する実験のレビュー.
反応木材の構造,分化,化学組成の検討.

主要な成果:

反応木は,動いた茎を垂直方向に戻すのに役立ちます.
硬木の反応木は上側に縦に収縮し,軟木は下側に膨張する.
回復力は,反応木細胞のリンギ化中に細胞壁の腫れから発生すると仮定されています.

結論:

反応木は,樹幹の回復に機能的に重要である.
反応木の細胞壁のリグニフィケーションは,幹の方向転換のための力を生み出します.
回復力の起源に関する仮説を提出し,異議を指摘する.

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