Limits to Tree Growth and Longevity

First author: Sergi Munné-Bosch; Affiliations: University of Barcelona (巴塞罗那大学): Barcelona, Spain

Corresponding author: Sergi Munné-Bosch

Tree growth and longevity are key features to understand fundamental issues of plant biology, environmental sciences, and current forest management plans. Here I discuss current evidence on the limits of tree growth and longevity and present a new conceptual (概念的) framework to understand how and why they are closely interconnected. Despite the tremendous (巨大的) plasticity of trees, growth and longevity are limited not only by biotic and abiotic stresses, but also by age-related structural constraints such as height-related hydraulic (水力的) limitations and vascular discontinuities, which are strongly species specific. Continuous growth and plastic branching may serve as a means to reach extreme longevities in some nonclonal trees, but even in these millennial organisms immortality can be attained only through the germ line.

林木的生长和长寿是理解植物生物学基础问题、环境科学及现代林业管理的关键点。本文作者讨论了限制林木生长和长寿的因素，并提出了一个新的概念框架用来理解其是如何紧密互相连接起来的。除了林木极大的可塑性，生长和长寿不仅受限于生物和非生物胁迫，同时还与年龄相关的结构性限制，比如树高相关的水力学限制和维管的不连续性，这些都是物种特异性的。连续生长和可塑性分枝可能是某些非无性系林木达到极端长寿的方法，但甚至是一些千年的物种也可以通过生殖系的方式达到“永生”。

通讯：Sergi Munné-Bosch  (http://antiox-postharvest.com/sergi-munne-bosch)

个人简介：1996年，巴塞罗那大学，学士；1999年，巴塞罗那大学，博士。

研究方向：园艺作物和果树对多种非生物胁迫的耐受性；生物刺激和生物肥料；果树生理与技术；花衰老与长寿。

doi: https://doi.org/10.1104/pp.18.00714

Journal: Trends in Plant Science

Published online: 27 August, 2018

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