木本植物木质部栓塞脆弱性研究进展展望

Prospects for the Research Progress of Xylem Embolism Vulnerability in Woody Plants

摘要: 木质部栓塞脆弱性是植物在逆境胁迫下的一种反应，主要表现为木质部在遭受水分胁迫后发生堵塞和破裂。这导致维管组织的水分输送中断，从而影响植物的正常生理过程，甚至导致死亡。木质部栓塞脆弱性不仅是植物适应逆境胁迫的生理基础，同时也是植物对环境变化和人为干扰的一种适应机制。因此，木质部栓塞脆弱性已成为植物抗逆生理研究的热点问题。近年来，国内外学者对木本植物木质部栓塞脆弱性进行了大量研究，并取得了一定成果。本文在国内外已有研究的基础上，总结了木本植物木质部栓塞脆弱性的概念、影响因素、测定方法，并对今后的研究方向进行了展望。

Abstract: Xylem Embolism Vulnerability is a plant’s response to adversity and stress, primarily manifested by the blockage and rupture of xylem vessels when subjected to water stress. This results in the interruption of water transport in the vascular tissue, thereby affecting the normal physiological processes of the plant and potentially leading to its demise. Xylem embolism vulnerability not only serves as the physiological foundation for plant adaptation to adverse environmental conditions but also represents a mechanism through which plants adapt to changes in their surroundings and human-induced disturbances. Consequently, xylem embolism vulnerability has become a focal point in the research of plant physiological responses to stress. In recent years, scholars both domestically and internationally have conducted extensive studies on xylem embolism vulnerability in woody plants, yielding significant findings. Building upon existing research globally, this article summarizes the concept of xylem embolism vulnerability in woody plants, its influencing factors, measurement methods, and provides insights into future research directions.