ABIOTIC STRESS GENE 1 mediates aroma volatiles accumulation by activating MdLOX1a in apple.

ABSTRACT: Fruit aroma is an important organoleptic quality, which influences consumer preference and market competitiveness. Aroma compound synthesis pathways in plants have been widely identified, among the lipoxygenase pathway is crucial for fatty acid catabolism to form esters in apple. However, the regulatory mechanism of this pathway remains elusive. In this study, linear regression analysis and transgene verification revealed that the lipoxygenase MdLOX1a is involved in ester biosynthesis. Yeast one-hybrid library screening indicated that a protein, MdASG1 (ABIOTIC STRESS GENE 1), was a positive regulator of MdLOX1a and ester production based on yeast one-hybrid and dual-luciferase assays, as well as correlation analysis among eight different apple cultivars. Overexpression of MdASG1

SUBMITTER: Zhang J 

PROVIDER: S-EPMC11464680 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature