Chromoplast-specific lycopene β-cyclase (LCYb2) is a critical carotenogenic enzyme, which
controls the massive accumulation of downstream carotenoids, especially provitamin A …

Although remarkable progress has been made toward understanding carotenoid
biosynthesis, the mechanisms that regulate the transcription of carotenogenic genes remain …

Background Carotenoids are a group of C40 isoprenoid molecules that play diverse
biological and ecological roles in plants. Tomato is an important vegetable in human diet …

Papaya is an important tropical fruit with a rich source of carotenoids. The ripening of
papaya is a physiological and metabolic process with remarkable changes including …

Plant carotenoids are synthesized and accumulated in plastids through a highly regulated
pathway. Lycopene β-cyclase (LCYB) is a key enzyme involved directly in the synthesis of α …

Carotenoids contribute to fruit coloration and are valuable sources of provitamin A in the
human diet. Abscisic acid (ABA) plays an essential role in fruit coloration during citrus fruit …

Solanum lycopersicum (tomato) and its wild relatives harbor genetic diversity that yields
heritable variation in fruit chemistry that could be exploited to identify genes regulating their …

The cDNA which encodes lycopene cyclase, CrtL, was cloned from tomato (Lycopersicon
esculentum cv. VF36) and tobacco (Nicotiana tabacum cv. Samsun NN) and functionally …

Carotenoids are the main pigments responsible of the colouration of Citrus fruits. The β-
cyclization of lycopene, catalysed by the lycopene β-cyclases (β-LCY), seems to be a key …

The ripening of papaya is a physiological and metabolic process associated with
accumulation of carotenoids, alternation of flesh color and flavor, which depending on …