Adaptation Mechanism of Paper Mulberry (Broussonetia papyrifera) to Environmental Stress

构树为桑科构树属植物，广泛分布于亚洲东部和太平洋岛屿，具有重要的经济价值和生态价值。为了研究构树在干旱、盐碱以及重金属等环境胁迫条件下的耐受适应机制，对国内外有关构树在各种胁迫处理情况下的形态结构特征、生理生化反应和分子适应机制等问题的研究进展作出了综合分析，为探明构树在恶劣环境下的响应机理，确立构树抗旱、抗盐碱和抗重金属栽培技术以及育种方面提供重要的理论基础，也为深入开发利用构树资源提供理论参考。 Broussonetia papyrifera (Moraceae), one genus of Broussonetia, is widely distributed in eastern Asia and Pacific islands and has important economic value and ecological value. In order to study the tolerance mechanism of Broussonetia papyrifera under drought, salinity and heavy metals stress, we analyzed the morphological characters, physiological and biochemical reactions and molecular mechanisms of Broussonetia papyrifera under various stress treatments. It provides an important theoretical basis for exploring the response mechanism of Broussonetia papyrifera in hard environment, establishing drought resistance, saline-alkali tolerance and anti-heavy metal cultivation techniques. It also provides theoretical reference for further development and utiliza-tion of Broussonetia papyrifera resources.