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首页> 外文期刊>Journal of Experimental Botany >Nitrogen remobilization during leaf senescence: lessons from Arabidopsis to crops
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Nitrogen remobilization during leaf senescence: lessons from Arabidopsis to crops

机译：叶片衰老期间的氮气重新化：拟南芥对作物的课程

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摘要

As a result of climate changes, land use and agriculture have to adapt to new demands. Agriculture is responsible for a large part of the greenhouse gas (GHG) emissions that have to be urgently reduced in order to protect the environment. At the same time, agriculture has to cope with the challenges of sustainably feeding a growing world population. Reducing the use of the ammonia-nitrate fertilizers that are responsible for a large part of the GHGs released and that have a negative impact on carbon balance is one of the objectives of precision agriculture. One way to reduce N fertilizers without dramatically affecting grain yields is to improve the nitrogen recycling and remobilization performances of plants. Mechanisms involved in nitrogen recycling, such as autophagy, are essential for nutrient remobilization at the whole-plant level and for seed quality. Studies on leaf senescence and nutrient recycling provide new perspectives for improvement. The aim of this review is to give an overview of the mechanisms involved in nitrogen recycling and remobilization during leaf senescence and to present the different approaches undertaken to improve nitrogen remobilization efficiency using both model plants and crop species.
机译：由于气候变化，土地利用和农业必须适应新的需求。农业负责大部分温室气体（温室气体）排放，必须迫切地减少以保护环境。与此同时，农业必须应对可持续养殖世界人口的挑战。减少负责释放的大部分温室气体的氨 - 硝酸盐肥料以及对碳平衡产生负面影响的负面影响是精密农业的目标之一。在不显着影响谷物产量的情况下减少N肥料的一种方法是改善植物的氮回收和重新繁殖性能。参与氮素回收的机制，例如自噬，对全植物水平和种子质量的营养活性至关重要。叶片衰老和营养回收研究提供了改进的新视角。本综述的目的是概述叶片衰老过程中氮回收和重新染色的机制，并呈现使用模型植物和作物物种提高氮气重量效率的不同方法。

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