数字农科院2.0

Lipidomic and Metabolomic Analyses Reveal Changes of Lipid and Metabolite Profiles in Rapeseed during Nitrogen Deficiency

文献类型： 外文期刊

作者： Peng, Yan;Lou, Hongxiang;Tan, Zengdong;Ouyang, Zhewen;Zhang, Yuting;Lu, Shaoping;Guo, Liang;Yang, Bao

作者机构：

关键词： Chloroplast;Membrane lipid metabolism;Nitrogen deficiency;Rapeseed;Sugar metabolism

期刊名称： PLANT AND CELL PHYSIOLOGY

ISSN： 0032-0781

年卷期： 2023 年

页码：

收录情况： SCIE（2023版）

摘要： Nitrogen is one of the most essential macronutrients for plant growth and its availability in soil is vital for agricultural sustainability and productivity. However, excessive nitrogen application could reduce the nitrogen use efficiency and produce environmental pollution. Here, we systematically determined the response in lipidome and metabolome in rapeseed during nitrogen starvation. Plant growth was severely retarded during nitrogen deficiency, while the levels of most amino acids were significantly decreased. The level of monogalactosyldiacyglycerol (MGDG) in leaves and roots was significantly decreased, while the level of digalactosyldiacylglycerol (DGDG) was significantly decreased in roots, resulting in a significant reduction of the MGDG/DGDG ratio during nitrogen starvation. Meanwhile, the levels of sulfoquinovosyl diacylglycerol, phosphatidylglycerol and glucuronosyl diacylglycerol were reduced to varying extents. Moreover, the levels of metabolites in the tricarboxylic acid cycle, Calvin cycle and energy metabolism were changed during nitrogen deficiency. These findings show that nitrogen deprivation alters the membrane lipid metabolism and carbon metabolism, and our study provides valuable information to further understand the response of rapeseed to nitrogen deficiency at the metabolism level.

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