文献类型： 外文期刊

作者： Cui, Di ¹ ; Zhu, Zichao ³ ; Kwon, Soon-Wook ⁴ ; Lee, Joohyun ⁵ ; Sun, Mingmao ⁶ ; Ma, Xiaoding ¹ ; Wang, Chutao ³ ; Han, Bing ¹ ; Li, Xianyong ³ ; Han, Longzhi ¹ ;

作者机构： 1.Chinese Acad Agr Sci, Inst Crop Sci, State Key Lab Crop Gene Resources & Breeding, Beijing 100081, Peoples R China

2.Chinese Acad Agr Sci, Inst Crop Sci, Minist Agr & Rural Affairs, Key Lab Grain Crop Genet Resources Evaluat & Utili, Beijing 100081, Peoples R China

3.Chongqing Acad Agr Sci, Chongqing 401329, Peoples R China

4.Pusan Natl Univ, Dept Plant Biosci, Miryang 50463, South Korea

5.Konkuk Univ, Dept Crop Sci, Seoul 05029, South Korea

6.Weifang Univ Sci & Technol, Biol Engn Res & Dev Ctr, Shouguang 262700, Shandong, Peoples R China

关键词： Special rice; Metabolomic analysis; Differential metabolites; Nutritional quality; Gamma-Aminobutyric acid; Flavonoids; Phenolic acids

期刊名称：FOOD CHEMISTRY-X （ 影响因子：8.2； 五年影响因子：8.2 ）

ISSN： 2590-1575

年卷期： 2025 年 30 卷

页码：

收录情况： SCI

摘要： The global demand for nutrient-rich functional rice is rapidly increasing. However, the metabolic mechanisms underlying the high-nutrient functionality of special rice remain inadequately understood. In this study, we developed 26 novel special rice accessions. Using a widely targeted metabolomics approach, we identified and classified 1347 metabolites. The metabolite profiles of these accessions exhibited substantial differentiation, with 204-629 differentially accumulated metabolites identified. Notably, pigmented giant embryo glutinous (PGEG) rice integrated a diverse array of bioactive compounds and nutrients from pigmented rice and giant embryo glutinous rice. It was particularly enriched in gamma-aminobutyric acid (GABA), flavonoids, phenolic acids, alkaloids, and other physiologically active substances. Key metabolic pathways (including the biosynthesis of flavone, flavonol, and flavonoid) were significantly enriched in differential metabolites between white/glutinous and PGEG rice. These findings provide a comprehensive understanding of the metabolite profiles of special rice varieties and offer valuable insights for breeding future high-nutrient functional rice.