A MYB-INDUCED MECHANISM FOR ENHANCED ASCORBATE IN RED-FLESHED APPLES  

作　　者：Richard V.ESPLEY Kui LIN-WANG 

机构地区：[1]The New Zealand Institute for Plant and Food Research Limited,Mount Albert,Auckland,New Zealand

出　　处：《Frontiers of Agricultural Science and Engineering》2021年第2期356-357,共2页农业科学与工程前沿（英文版）

摘　　要：The results presented in"The anthocyanin biosynthetic regulator MdMYBl positively regulates ascorbic acid biosynthesis in apple"(An et al.#this issue)provide evidence for a new mechanism for the elevation of ascorbate concentration in apple.Using a red-fleshed apple breeding population,the authors show how the anthocyanin-regulating MYB transcription factor,MdMYBl,also increases ascorbate concentrations by directly activating transcription of the dehydroascorbate reductase gene MdDHAR.This gene recycles oxidized ascorbate back to ascorbate,leading to elevated concentrations of vitamin C.These red-fleshed apples have enhanced concentrations of both anthocyanins and ascorbate,both of which are appealing traits for the development of healthier apples.

关 键 词：BREEDING VITAMIN APPLE 

分 类 号：S661.1[农业科学—果树学]