RRC ID 67911
Author Lewis ER, Nogueira M, Enfissi EMA, Fraser PD.
Title The esterification of xanthophylls in Solanum lycopersicum (tomato) chromoplasts; the role of a non-specific acyltransferase.
Journal Phytochemistry
Abstract 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.
Volume 191
Pages 112912
Published 2021-8-24
DOI 10.1016/j.phytochem.2021.112912
PII S0031-9422(21)00261-2
PMID 34450419
IF 2.905
Tomato TOMJPEH7L (pyp1-1) TOMJPE5508-1 (pyp1-2)