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Apple bZIP transcription factor MdbZIP44 regulates abscisic acid‐promoted anthocyanin accumulation
Author(s) -
An JianPing,
Yao JiFang,
Xu RuiRui,
You ChunXiang,
Wang XiaoFei,
Hao YuJin
Publication year - 2018
Publication title -
plant, cell and environment
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.646
H-Index - 200
eISSN - 1365-3040
pISSN - 0140-7791
DOI - 10.1111/pce.13393
Subject(s) - abscisic acid , transcription factor , myb , anthocyanin , biosynthesis , biochemistry , ubiquitin , biology , proteasome , promoter , ubiquitin ligase , gene , microbiology and biotechnology , chemistry , gene expression , botany
The molecular mechanism of ABA‐promoted anthocyanin accumulation and fruit coloration is less known. Here, an apple bZIP transcription factor MdbZIP44 was identified to be a positive regulator in ABA‐promoted anthocyanin accumulation by interacting with MdMYB1 and enhancing its binding capacity to the promoters of downstream target genes. MdBT2 decreased ABA‐promoted anthocyanin accumulation by degrading MdbZIP44 protein.