Responses to environmental stresses in woody plants: key to survive and longevity
Responses to environmental stresses in woody plants: key to survive and longevity
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DOI：
10.1007/s10265-011-0446-6
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发表时间：
2011
影响因子：
2.8
通讯作者：
Yuriko Osakabe;A. Kawaoka;N. Nishikubo;K. Osakabe
中科院分区：
文献类型：
--
作者：
Yuriko Osakabe;A. Kawaoka;N. Nishikubo;K. Osakabe
环境压力对植物生长和生产力有不利影响，预计在未来几十年将变得更加严重和广泛。特别是长期和反复的严重胁迫对木本植物生长发育的影响，由于其生长期较长，对木本植物的影响较持久。为了抵消这些影响，树木进化出了适应和耐受环境压力的特定机制。植物的生长发育受到包括植物激素在内的多种环境和内源信号的综合调控。陆地植物对环境胁迫的适应是由分子级联控制的，也涉及到与其他胁迫和植物激素信号机制的串扰。本文就木本植物非生物胁迫响应的分子机制、植物激素在木材形成中的作用、细胞壁生物合成的相互联系及上述机制等方面的研究进展作一综述。深入了解这些机制将有助于揭示木本植物克服恶劣环境胁迫条件的改良因素。
Environmental stresses have adverse effects on plant growth and productivity, and are predicted to become more severe and widespread in decades to come. Especially, prolonged and repeated severe stresses affecting growth and development would bring down long-lasting effects in woody plants as a result of its long-term growth period. To counteract these effects, trees have evolved specific mechanisms for acclimation and tolerance to environmental stresses. Plant growth and development are regulated by the integration of many environmental and endogenous signals including plant hormones. Acclimation of land plants to environmental stresses is controlled by molecular cascades, also involving cross-talk with other stresses and plant hormone signaling mechanisms. This review focuses on recent studies on molecular mechanisms of abiotic stress responses in woody plants, functions of plant hormones in wood formation, and the interconnection of cell wall biosynthesis and the mechanisms shown above. Understanding of these mechanisms in depth should shed light on the factors for improvement of woody plants to overcome severe environmental stress conditions.