节点文献
番茄矿质营养元素吸收与积累机制的研究进展
Research progress on the mechanisms of mineral nutrition absorption and accumulation in tomato
【摘要】 番茄是重要的蔬菜,其产量和品质在很大程度上取决于对土壤矿质营养元素的吸收与利用效率。植物吸收和积累的矿质营养元素经过土壤-食物链途径进入人体,既为人体提供必需营养元素,也可能带来有害元素的暴露风险。随着中国农田土壤质量下降、重金属污染问题突显,以及人民对高品质农产品需求的日益增长,如何对农作物可食用部位进行必需微量元素的生物强化,对有害元素的积累进行阻止,已成为高质量农业生产中亟需解决的问题。植物通过多种离子转运蛋白从土壤中吸收矿质营养元素,并将其转运至地上部,随后在不同组织和器官中进行转运、分配、再分配。但在这一复杂的运输网络中,仅有少量功能基因被克隆到。本文系统整理了番茄中大量元素、微量元素及重金属镉吸收与积累相关的基因,以及这些基因调控番茄矿质营养元素吸收、积累的机制,同时展望了关键基因在必需微量元素生物营养强化和重金属低积累番茄品种选育中的应用前景。本文旨在为高品质番茄育种研究提供新的思路和理论依据。
【Abstract】 Tomato is an important vegetable, and its yield and quality largely depend on the efficiency of absorption and utilization of soil mineral nutrients. Mineral elements absorbed and accumulated by plants enter the human body through the soil-food chain route. They provide essential nutrients to the human body while also posing a risk of exposure to harmful elements. With the decline in the quality of farmland soil in China, the prominent problem of heavy metal pollution, and the growing demand of the people for high-quality agricultural products, how to bio-fortify essential trace elements in the edible parts of crops and prevent the accumulation of harmful elements has become an urgent issue in high-quality agricultural production. Plants absorb mineral nutrient elements from the soil through various ion transporters and transport them to the above-ground parts. Subsequently, these elements are transported, distributed, and re-distributed in different tissues and organs. However, only a small number of functional genes have been cloned in this complex transportation network. This paper systematically compiles the genes related to the absorption and accumulation of macro-elements, micro-elements, and heavy metal cadmium in tomatoes, as well as the regulatory mechanisms of these genes on the absorption and accumulation of mineral nutrients in tomatoes. At the same time, it looks ahead to the application prospects of key genes in breeding tomato varieties with bio-fortification of essential trace elements and low heavy-metal accumulation. This paper aims to provide new ideas and a theoretical basis for high-quality tomato breeding research.
【Key words】 tomato; mineral nutrients; heavy metals; uptake; accumulation; transporters;
- 【文献出处】 江苏农业学报 ,Jiangsu Journal of Agricultural Sciences , 编辑部邮箱 ,2025年01期
- 【分类号】S641.2
- 【下载频次】48