生物技术通报2025，Vol.41Issue(10)：64-71,8.DOI:10.13560/j.cnki.biotech.bull.1985.2025-0549
植物光合作用的光保护机制研究进展
Advances in the Study of Photoprotection in Plant Photosynthesis
摘要
Abstract
Photosynthesis is the foundation of plant growth and yield formation.Light provides the energy for plant photosynthesis,but excessive light can cause photoinhibition,leading to reduced photosynthetic efficiency or even photo-oxidative damage,which is particularly severe under stress conditions such as drought,high temperature,and low temperature.In response to photoinhibition,plants have evolved a variety of photoprotective mechanisms,including chloroplast movement,non-photochemical quenching,reactive oxygen species scavenging,cyclic electron transport,and PSII damage repair.The movement of chloroplasts affects the absorption of light energy through the adjustment of leaf posture and the change of chloroplast position,so as to achieve the adaptation to high light.Non-photochemical quenching dissipates excess light energy as heat to prevent PSII damage.The ROS scavenging system mitigates oxidative damage.Cyclic electron flow regulates energy balance and excitation energy distribution between photosystems,playing a key role in photoprotection.The efficient PSII repair mechanism helps plants maintain photosynthetic efficiency under stress.Recent research has enhanced our understanding of these mechanisms,providing new ideas for breeding high-photosynthetic-efficiency crop varieties.Future research should focus on field experiments to explore the role of photoprotection in natural conditions and the molecular basis and regulatory networks of photoprotective mechanisms,which is expected to provide theoretical basis and data support for cultivating new crop varieties with high yield,high quality and stress resistance.关键词
光合作用/光损伤/光抑制/光保护Key words
photosynthesis/photodamage/photoinhibition/photoprotection引用本文复制引用
陈立超,杨雪莲,李文杰,石艳云,张立新,徐秀美..植物光合作用的光保护机制研究进展[J].生物技术通报,2025,41(10):64-71,8.基金项目
国家重点研发计划(2022YFF1001700) （2022YFF1001700）
