Metabolic Profiling of Sugars and Organic Acids, and Expression Analyses of Metabolism-Associated Genes in Two Yellow-Peel Pitaya Species.

ABSTRACT: Sugar and organic acids are important factors determining pitaya fruit quality. However, changes in sugars and acids, and expressions of metabolism-associated genes during fruit maturation of yellow-peel pitayas are not well-documented. In this study, metabolic and expression analyses in pulps of different fruit developmental stages of 'Wucihuanglong' ('WCHL', Hylocereus undatus) and 'Youcihuanglong' pitaya ('YCHL', Hylocereus megalanthus) were used to explore the sugar and organic acid metabolic process. Total phenols and flavonoids were mainly accumulated at S1 in pitaya pulps. Ascorbic acid contents of 'WCHL' pitaya were higher than that of 'YCHL' pitaya during fruit maturation. Starch was mainly accumulated at early fruit development stages while soluble sugars were rich

SUBMITTER: Xie F 

PROVIDER: S-EPMC8912497 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature