An Overview of the Biology of Reaction Wood
Formation
Sheng Du;Fukuju Yamamoto
【期刊名称】《植物学报（英文版）》 【年(卷),期】2007(049)002
【摘要】Reaction wood possesses altered properties and performs the function of regulating a tree's form, but it is a serious defect in wood utility. Trees usually develop reaction wood in response to a gravistimulus. Reaction wood in gymnosperms is referred to as compression wood and develops on the lower side of leaning stems or branches.In arboreal, dicotyledonous angiosperms, however, it is called tension wood and is formed on the upper side of the leaning. Exploring the biology of reaction wood formation is of great value for the understanding of the wood differentiation mechanisms, cambial activity, gravitropism, and the systematics and evolution of plants. After giving an outline of the variety of wood and properties of reaction wood, this review lays emphasis on various stimuli for reaction wood induction and the extensive studies carried out so far on the roles of plant hormones in reaction wood formation. Inconsistent results have been reported for the effects of plant hormones. Both auxin and ethylene regulate the formation of compression wood in gymnosperms. However, the role of ethylene may be indirect as exogenous ethylene cannot induce
compression wood formation. Tension wood formation is mainly regulated by auxin and gibberellin. Interactions among hormones and other substances may play important parts in the regulation of reaction wood formation.
【总页数】13页(131-143) 【
关
键
词
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auxin;cambial
growth;compression
acid;plant
wood;ethylene;gibberellin;gravitropism;indoleacetic hormone;reaction wood;tension wood 【作者】Sheng Du;Fukuju Yamamoto
【作者单位】Faculty of Agriculture, Tottori University, Minami 4-101, Koyama, Tottori 680-8553, Japan;Faculty of Agriculture, Tottori University, Minami 4-101, Koyama, Tottori 680-8553, Japan 【正文语种】中文 【中图分类】Q94 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_journal-integrative-plant-biology_thesis/0201255533237.html 【相关文献】
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An Overview of the Biology of Reaction Wood Formation
