Guo Pingping, Zhao Xiping, Wang Dongfang, Zhang Yuying, Xie Puxin, Zhao Tifeng, Zhao Xinyi, Lou Xinyi
College of Horticulture and Plant Protection, Henan University of Science and Technology, Luoyang 471023, China.
Plants (Basel). 2025 Sep 4;14(17):2769. doi: 10.3390/plants14172769.
This study systematically analyzes the microstructure and radial variation of wood, revealing its adaptive strategies for arid environments. The results show that the wood consists of thick-walled fibers (63%) and vessels (17.7%), with a semi-ring-porous structure and 48.4% average cell wall percentage. Fiber proportion peaks early (4 years), ensuring mechanical support, while vessel adjustment occurs later (19 years), balancing water transport. Rays decline sharply in the first 9 years, stabilizing thereafter, reflecting a shift from growth to structural stability. The high fiber proportion and occasional tyloses enhance durability, making it suitable for high-quality pulp, furniture, and humid environments such as shipbuilding. A rotation period ≥ 20 years ensures stable properties. Genetic breeding could shorten the juvenile stage and optimize vessel distribution. Future research should integrate multi-omics and environmental data to deepen our understanding of its adaptation mechanisms. This study provides a basis for the utilization of resources.
本研究系统分析了木材的微观结构和径向变化，揭示了其对干旱环境的适应策略。结果表明，木材由厚壁纤维（63%）和导管（17.7%）组成，具有半环孔结构，平均细胞壁百分比为48.4%。纤维比例在早期（4年）达到峰值，确保机械支撑，而导管调整在后期（19年）发生，平衡水分运输。射线在前9年急剧下降，此后趋于稳定，反映了从生长到结构稳定的转变。高纤维比例和偶尔出现的侵填体增强了耐久性，使其适用于高质量纸浆、家具以及造船等潮湿环境。轮伐期≥20年可确保性能稳定。遗传育种可以缩短幼年期并优化导管分布。未来的研究应整合多组学和环境数据，以加深我们对其适应机制的理解。本研究为资源利用提供了依据。
