Differential Analysis of Taro Metabolites Based on Widely Targeted Metabolomics and Antioxidant Enzyme Activity

doi:10.11924/j.issn.1000-6850.casb2024-0327

Abstract

Abstract:

Taro is a dual-purpose crop for food and vegetables. This study aims to explore the active substances in taro affecting its edible value, in order to provide a reference for improving the quality of taro. Red bud taro and fragrant taro were used as test materials in this study. The metabolite components were determined by liquid chromatography-mass spectrometry. Combined with the changes in agronomic traits, the key metabolic pathways affecting their active substances were elucidated. Compared with fragrant taro, the Vc contents of red bud taro were increased by 13%, while activities of SOD and CAT were increased by 63.8% and 43.2%, respectively. 244 differential metabolites were identified by metabolomics analysis, including 192 up-regulated and 52 down-regulated metabolites. KEGG analysis showed that the biosynthesis of secondary metabolites, ABC transporters, and amino acid biosynthesis pathways were significantly enriched. Among them, the metabolites with the largest up-regulated abundance included 9 flavonoids such as isorhamnetin-3-O-neohesperidin. This study emphasizes that these 9 flavonoids play an important role in improving the quality of red bud taro, and also provides a theoretical basis for the further development of taro products.

Key words: taro, metabolomics, nutrients, differential metabolites, antioxidant substances, flavone

FU Mei, LI Guihua, LUO Wenlong, LUO Shanwei, GUO Juxian. Differential Analysis of Taro Metabolites Based on Widely Targeted Metabolomics and Antioxidant Enzyme Activity[J]. Chinese Agricultural Science Bulletin, 2025, 41(6): 118-125.

Figures/Tables 8

References 28

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