近期激光对植物生长调节效应的研究进展

分析了激光对植物生长调节效应的研究进展,发现研究明显具有以下特点:早期研究主要集中在激光预处理种子对种子萌发、幼苗生长发育、生理生化效应的影响以及激光处理机制的初步讨论;近年来的研究集中于激光处理对环境胁迫下植物生理生化效应影响,环境胁迫因子涉及增强UV-B辐射、干旱与冷冻,其中多数研究集中于激光对增强UV-B辐射下植物生理生化效应的影响,发现激光能增强植物抗UV-B辐射损伤,提高植物抗干旱逆境及抗冷冻能力,并对其作用机理及机制进行了探讨。今后可围绕全球生态环境变化背景下,激光处理对植物生理生化效应的影响进行研究,并深入研究激光影响的分子生物学机制机理。

Research trend on regulating effect of laser pretreatment on plant growth

This paper reviewed researches in recent years on the response of plant growth, physio-biochemistry to laser treatment. The review shows a clear research trend. Earlier studies focused on the effects of laser pretreatment on seeds germination, seedlings growth and physio-biochemical characteristics, with emphasis on the mechanisms by which laser pretreatment influences plants. Latter studies, on the other hand, focused on the effects of laser pretreatment on physio-biochemical traits of plants under such environmental stresses as drought, cold and enhanced UV-B radiation. In the latter research stage, more emphasis was placed on the effects of laser pretreatment under enhanced UV-B radiation on plants. Research results indicated that laser irradiance improved plant resistance to drought and cold stress, and enhanced UV-B radiation. On these bases, the mechanisms were discussed also. Future research should focus on repairing mechanisms of laser-pretreated plants under global eco-environmental change conditions.