Therefore, to better understand how plants synthesize provitamin A and to guide metabolic engineering strategies in crops such as maize, the functional characterization of the new z-carotene isomerase (Z-ISO) is of significant importance.;Z-ISO was recently discovered in maize and Arabidopsis (Chen...
During lycopene biosynthesis, isomerization of the 15-cis precursor, 9,15,9-cis-ζ-carotene, is catalyzed by the heme-dependent enzyme, 15-cis-ζ-carotene isomerase (Z-ISO). Light can also mediate this isomerization in light exposed tissues, although the reaction is less efficient such that ...
Moreover, by using realtime PCR, it was elegantly shown that in wild-type rice endosperm the mRNA expression of the relevant carotenoid biosynthetic enzymes encoding phytoene desaturase, ζ-carotene desaturase, carotene cis-trans-isomerase, β-lycopene cyclase, and β-carotene hydroxylase were all ...
Isomerization of 9,15,9′-tri-cis-ζ-carotene mediated by 15-cis-ζ-carotene isomerase Z-ISO is a critical step in the biosynthesis of carotenoids, which define fruit color. The tomato clade (Solanum section Lycopersicon) comprises the cultivated tomato