Exogenous Abscisic Acid Regulates Distribution of 13C and 15N and Anthocyanin Synthesis in 'Red Fuji' Apple Fruit Under High Nitrogen Supply.

ABSTRACT: In order to improve the problem of poor coloring caused by high fruit nitrogen in apple production, we studied the effects of different concentrations of abscisic acid (ABA: 0, 50, 100, and 150 mg/L) and fluridone (ABA biosynthesis inhibitor) on the fruit of 'Red Fuji' apple (Malus Domestica Borkh.) in the late stage of apple development (135 days after blooming) in 2017 and 2018. The effects of these treatments on the distribution of 13C and 15N and anthocyanin synthesis in fruit were studied. The results showed that the expression levels of ABA synthesis and receptor genes in the peel and flesh were upregulated by exogenous ABA treatment. An appropriate concentration of ABA significantly increased the expression of anthocyanin synthesis genes and transcription factors and increased the c

SUBMITTER: Wang F 

PROVIDER: S-EPMC6997889 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature