Metabolic profiling reveals genotype-associated alterations in carotenoid content during banana postharvest ripening
文献类型： 外文期刊
作者： Sheng, Ou 1 ; Yin, Zhibin 2 ; Huang, Wenjie 2 ; Chen, Mengyu 2 ; Du, Mingyi 4 ; Kong, Qian 2 ; Fernie, Alisdair R. 3 ; Yi, Ganjun 1 ; Yan, Shijuan 2 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Key Lab South Subtrop Fruit Biol & Genet Resource, Guangdong Prov Key Lab Trop & Subtrop Fruit Tree R, Guangzhou 510640, Peoples R China
2.Guangdong Acad Agr Sci, Agrobiol Gene Res Ctr, Guangdong Key Lab Crop Germplasm Resources Preserv, Guangzhou 510640, Peoples R China
3.Max Planck Inst Mol Plant Physiol, Muhlenberg 1, D-14476 Potsdam, Germany
4.South China Agr Univ, Key Lab Nat Pesticide & Chem Biol, Minist Educ, Guangzhou 510642, Peoples R China
关键词： Banana; Carotenoids; Amino acids; Metabolomics; Genotypes
期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）
ISSN： 0308-8146
年卷期： 2023 年 403 卷
页码：
收录情况： SCI
摘要： Banana fruits have attracted considerable attention for health-promoting effects attributed to ubiquitous func-tional metabolites. However, genotype-dependent accumulation patterns of carotenoids in banana remain largely unclear. Here, we performed a systematic metabolomic investigation of 18 banana cultivars of the AAA, AAB, or ABB genome groups. Our results indicate that the levels of soluble sugars increase during postharvest ripening regardless of genotype, whereas amino acids (AAs) and tricarboxylic acid (TCA) cycle-derived organic acids display genotype-dependent patterns. The levels of AAs derived from the glycolytic pathway increased, whereas those derived from the TCA cycle significantly decreased during ripening. The carotenoid composition in banana pulp was genotype-specific, and the contents of alpha-carotene were the highest in AAA-genome bananas. Moreover, high alpha-carotene and beta-carotene contents in banana were correlated with elevated levels of TCA cycle-derived AAs and decreased levels of glycolysis-derived AAs. Taken together, these findings provide a comprehensive un-derstanding of genotype-associated carotenoid accumulation, thereby facilitating the breeding of future high carotenoid banana cultivars.
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