脂质体
氮缺乏
二酰甘油激酶
氮气
代谢组
代谢组学
油菜籽
代谢物
新陈代谢
氮气循环
化学
脂类学
脂质代谢
生物化学
生物
食品科学
色谱法
有机化学
蛋白激酶C
酶
作者
Yan Peng,Lou Hong-xiang,Zengdong Tan,Zhewen Ouyang,Shouxin Zhang,Shaoping Lu,Liang Guo,Bao Yang
出处
期刊:Plant and Cell Physiology
[Oxford University Press]
日期:2023-10-16
卷期号:65 (6): 904-915
被引量:4
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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