Comparative analysis of metabolites profile in spinach (Spinacia oleracea L.) affected by different concentrations of gly and nitrate

Effect of glycine nitrogen on lettuce growth under soilless culture: a metabolomics approach to identify the main changes occurred in plant primary and secondary metabolism

“…These results are consistent with former studies conducted by Wang et al . and Liu et al . and partly explain the lower N use efficiency in response to glycine …”

“…The large organic N pool, of which amino acids are the most available form, contributing 96–99% of total N in soil, is largely ignored in the classical N cycling paradigm. Increasing evidence suggests that different forms of N in plant nutrient solutions greatly influence plant metabolism and induce different physiological responses . It is expected that organic N supply could promote the synthesis of health‐promoting compounds such as polyphenols and vitamins.…”

“…Metabolomics approaches can comprehensively analyze both qualitatively and quantitatively a wide range of metabolite classes and are a powerful tool for revealing altered expression of metabolites in response to different treatments . To date, target metabolomics based on gas chromatography coupled with mass spectrometry focusing on the primary metabolites involved in plant organic N physiology has been conducted for spinach and pakchoi . However, to our knowledge, little research has been devoted to comparison of metabolic diversity as well as the levels of secondary metabolites such as polyphenols in plants treated with inorganic and organic N.…”

“…Increasing evidence suggests that different forms of N in plant nutrient solutions greatly influence plant metabolism and induce different physiological responses. [14][15][16][17][18][19][20] It is expected that organic N supply could promote the synthesis of health-promoting compounds such as polyphenols and vitamins. As a consequence, fertilizers containing organic N may improve the nutritional level of lettuce, resulting in promoting the health status of individuals.…”

“…[21][22][23] To date, target metabolomics based on gas chromatography coupled with mass spectrometry focusing on the primary metabolites involved in plant organic N physiology has been conducted for spinach and pakchoi. 15,16 However, to our knowledge, little research has been devoted to comparison of metabolic diversity as well as the levels of secondary metabolites such as polyphenols in plants treated with inorganic and organic N.…”