木本植物树皮研究进展

树皮是指木本植物维管形成层以外的所有组织。树皮作为木本植物的一部分，其结构一般比木质部更加复杂。目前，对木本植物树皮的研究已取得了一定的成果。文中在简述木本植物树皮形态结构的基础上，阐述了树皮的理化性质及其防护功能，以及树皮厚度模型及其应用；通过介绍树皮的理化性质，分析了树皮的生理生态功能研究进展；重点概述了不同木本植物树皮中基因表达调控机制；剖析了树皮研究过程中存在的问题，并展望了今后的研究重点，以期为进一步了解树皮的多功能性提供参考，同时为将来的树皮生态学研究提供借鉴。

Research Progress in Bark of Woody Plants

Bark refers to all tissues of woody plants other than the vascular cambium. As a part of woody plants, bark has generally more complex structure than xylem does. At present, the research on the bark of woody plants has achieved certain results. The paper describes the morphological structure of the woody plant bark, elaborates its physical and chemical properties and the protective functions, and discusses the bark thickness model and its application. Based on the introduction of bark’s physical and chemical properties, the research progress in bark’s physiological and ecological functions is analyzed, in which gene expression regulation mechanisms in the bark of different woody plants are highlighted. The paper also analyzes the problems in the bark research, and prospects the focus of future research. It is hoped to provide references for further understanding of the versatility of bark, and at the same time provide references for future bark ecology research.