The esterification of xanthophylls in Solanum lycopersicum (tomato) chromoplasts; the role of a non-specific acyltransferase.
Chromoplasts
Esterification
HPLC analysis
Ketocarotenoids
Solanaceae
Solanum lycopersicum
Tomato
Journal
Phytochemistry
ISSN: 1873-3700
Titre abrégé: Phytochemistry
Pays: England
ID NLM: 0151434
Informations de publication
Date de publication:
Nov 2021
Nov 2021
Historique:
received:
01
06
2021
revised:
25
07
2021
accepted:
10
08
2021
pubmed:
28
8
2021
medline:
15
9
2021
entrez:
27
8
2021
Statut:
ppublish
Résumé
The esterification of carotenoids has been associated with high-level accumulation, greater stability and potentially improved dietary bioavailability. Engineering the formation of ketocarotenoids into tomato fruit has resulted in the esterification of these non-endogenous metabolites. A genotype of tomato was created that contains; (i) the mutant pale yellow petal (pyp)1-1 allele, which is responsible for the absence of carotenoid esters in tomato flowers and (ii) the heterologous enzymes for ketocarotenoid formation. Analysis of the resulting progeny showed altered quantitative and qualitative differences in esterified carotenoids. For example, in ripe fruit tissues, in the presence of the pyp mutant allele, non-endogenous ketocarotenoid esters were absent while their free forms accumulated. These data demonstrate the involvement of the PYP gene product in the esterification of diverse xanthophylls.
Identifiants
pubmed: 34450419
pii: S0031-9422(21)00261-2
doi: 10.1016/j.phytochem.2021.112912
pii:
doi:
Substances chimiques
Plant Proteins
0
Xanthophylls
0
Acyltransferases
EC 2.3.-
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
112912Informations de copyright
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