PhAAT1, encoding an anthocyanin acyltransferase, is transcriptionally regulated by PhAN2 in petunia.
Journal
Physiologia plantarum
ISSN: 1399-3054
Titre abrégé: Physiol Plant
Pays: Denmark
ID NLM: 1256322
Informations de publication
Date de publication:
Jan 2023
Jan 2023
Historique:
revised:
11
12
2022
received:
05
11
2022
accepted:
24
12
2022
pubmed:
12
1
2023
medline:
25
2
2023
entrez:
11
1
2023
Statut:
ppublish
Résumé
Anthocyanins widely exist in plants and they are important pigments for color of petals and fruits. They are produced through a multi-step pathway controlled by transcription factor complexes. The anthocyanin skeleton modification is the last reaction in the anthocyanin synthesis pathway, which improves the stability of anthocyanins. Acylation modification is an important modification of anthocyanins. However, the identification and function of anthocyanin acyltransferase genes and their expression regulation are rarely reported. In this study, we identified the petunia anthocyanin acyltransferase gene, PhAAT1. PhAAT1 is located in the cytoplasm and PhAAT1 silencing changed flower color and reduced the stability of anthocyanin. Metabolomics analysis showed that PhAAT1 silencing led to the reduction of p-coumaroylated and caffeoylated anthocyanins. In addition, PhAAT1 was positively regulated by the MYB transcription factor, PhAN2, which directly interacts with the promoter of PhAAT1.
Substances chimiques
Anthocyanins
0
Acyltransferases
EC 2.3.-
Transcription Factors
0
Plant Proteins
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e13851Subventions
Organisme : China Postdoctoral Science Foundation
ID : 2021M691077
Organisme : National Natural Science Foundation of China
ID : 31770737
Organisme : National Natural Science Foundation of China
ID : 32202527
Informations de copyright
© 2023 Scandinavian Plant Physiology Society.
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