Effect of mycorrhizal colonisation, nitrogen and sulfur nutrition, and water supply on composition and health value of Chinese Allium vegetable plants

菌根定植、氮硫营养及供水对葱类蔬菜植物成分及保健价值的影响

• 批准号: 5410600
• 负责人: Professor Dr. Eckhard George
• 金额: --
• 依托单位: Leibniz-Institut für Gemüse- und Zierpflanzenbau (IGZ) e.V.
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5410600?language=en
• 关键词: Effect; mycorrhizal; colonisation; nitrogen; sulfur

Allium species are an important part of the daily diet for many people in the world, in particular also in most parts of China. Allium plants contain phytochemicals with potential beneficial effects for human health. Mineral nutrition and water supply can have effects not only on growth and yield, but also on the composition of plants. Thus, concentration and content of many plant compounds related to human health can also be influenced by fertilisation or irrigation. Mycorrhizal colonisation can increase phosphorus uptake of plants, but in addition to that affects also the uptake of other elements such as nitrogen, and induces physiological changes in the plant. In the present project, the effect of supply of different nitrogen forms (ammonium, nitrate, organic nitrogen), of sulphate at different levels, of water supply, and of mycorrhizal colonisation is investigated in factorial experiments under controlled conditions, using garlic and other Allium plants. We specifically test the hypothesis that mycorrhizal Allium plants produce more health-related phytochemicals than their non-mycorrhizal counterparts, due to increased rates of ammonium and sulphate uptake. The aim of this project is to contribute to the development of horticultural systems under Chinese conditions with increased production of health related compounds.

葱属植物是世界上许多人日常饮食的重要组成部分，特别是在中国大部分地区。葱属植物含有对人体健康有潜在益处的植物化学物质。矿质营养和水分供应不仅对植物的生长和产量有影响，而且对植物的组成也有影响。因此，许多与人类健康有关的植物化合物的浓度和含量也会受到施肥或灌溉的影响。菌根定植可以增加植物对磷的吸收，但除此之外还会影响对氮等其他元素的吸收，并引起植物的生理变化。在本项目中，在控制条件下，利用大蒜和其他葱属植物，在因子实验中研究了不同氮形式（铵、硝、有机氮）、不同水平硫酸盐、供水和菌根定植的影响。我们特别测试了菌根葱植物比非菌根葱植物产生更多与健康相关的植物化学物质的假设，这是由于铵和硫酸盐吸收速率的增加。该项目的目的是促进中国条件下园艺系统的发展，增加与健康有关的化合物的生产。