Sharma S, Bhatt U, Sharma J, Kalaji H M, Mojski J, Soni V
Plant Bioenergetics and Biotechnology Laboratory, Department of Botany, Mohanlal Sukhadia University, 31300 Udaipur, India.
Institute of Technology and Life Sciences, National Research Institute, Falenty, Aleja Hrabska 3, 05-090 Raszyn, Poland.
Photosynthetica. 2022 Aug 18;60(3):430-444. doi: 10.32615/ps.2022.033. eCollection 2022.
Photosynthesis is a process highly sensitive to various abiotic and biotic stresses in plants. Among them, the major abiotic stress, waterlogging, affects the crop's growth and productivity. Under waterlogging, the photosynthetic apparatus of plants was destroyed. Waterlogging reduced chlorophyll content and the net photosynthetic rate. Therefore, this updated review summarized the effect of waterlogging on chloroplast ultrastructure, photosynthetic characteristics, and chlorophyll fluorescence attributes of plant species. By studying various research papers, we found that intercellular concentration of available carbon dioxide in mesophyll cells, assimilation of carbon, and the net photosynthetic ratio declined under waterlogging. The chlorophyll fluorescence efficiency of plants decreased under waterlogging. Thus, the study of photosynthesis in plants under waterlogging should be done with respect to changing climate. Moreover, the recognition of photosynthetic characteristics present in tolerant species will be beneficial for designing the waterlogging-tolerant crop plant in changing environments.
光合作用是植物中对各种非生物和生物胁迫高度敏感的过程。其中，主要的非生物胁迫——涝害，会影响作物的生长和生产力。在涝害条件下，植物的光合器官会遭到破坏。涝害会降低叶绿素含量和净光合速率。因此，这篇更新的综述总结了涝害对植物叶绿体超微结构、光合特性和叶绿素荧光属性的影响。通过研究各种研究论文，我们发现，在涝害条件下，叶肉细胞中有效二氧化碳的胞间浓度、碳同化以及净光合率均下降。植物的叶绿素荧光效率在涝害条件下降低。因此，应结合气候变化来研究涝害条件下植物的光合作用。此外，了解耐涝物种的光合特性将有助于在不断变化的环境中设计耐涝作物品种。
