Lu Zhifeng, Ren Tao, Li Yong, Cakmak Ismail, Lu Jianwei
Microelement Research Center, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture and Rural Affairs, Wuhan 430070, China.
National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China.
Trends Plant Sci. 2025 Aug;30(8):872-885. doi: 10.1016/j.tplants.2025.03.006. Epub 2025 Apr 11.
Liebig's law of the minimum states that increasing photosynthetic productivity on nutrient-impoverished soils depends on addressing the most limiting nutrient. Research has identified the roles of different mineral nutrients in photosynthetic processes. However, diffusional and biochemical regulation of photosynthesis both feature patterns of cumulative effects that jointly determine photosynthetic capacity. More importantly, responses to multiple nutrient stresses are not simply additive and require a comprehensive understanding of how these stresses interact and impact photosynthetic performance. In this review we highlight key macroelements for photosynthesis - nitrogen, phosphorus, potassium, and magnesium - focusing on their unique functions and interactions in regulating carbon fixation under multiple nutrient deficiencies, with the goal of enhancing crop productivity through balanced nutrient applications.
李比希最小养分律指出，在养分贫瘠的土壤上提高光合生产力取决于解决最具限制作用的养分问题。研究已经确定了不同矿质养分在光合过程中的作用。然而，光合作用的扩散调节和生化调节都具有累积效应模式，这些模式共同决定了光合能力。更重要的是，对多种养分胁迫的响应并非简单相加，需要全面了解这些胁迫如何相互作用并影响光合性能。在本综述中，我们重点介绍光合作用的关键大量元素——氮、磷、钾和镁——关注它们在多种养分缺乏情况下调节碳固定的独特功能和相互作用，目标是通过平衡养分施用提高作物生产力。
