Carotenoid Biosynthesis in Oriental Melon (Cucumis melo L. var. makuwa )

Foods
Pham Anh TuanSang Un Park

Abstract

Full-length cDNAs encoding ξ-carotene desaturase (CmZDS), lycopene ε-cyclase (CmLCYE), β-ring carotene hydroxylase (CmCHXB), and zeaxanthin epoxidase (CmZEP), and partial-length cDNA encoding ε-ring carotene hydroxylase (CmCHXE) were isolated in Chamoe (Cucumis melo L. var. makuwa), an important commercial fruit. Sequence analyses revealed that these proteins share high identity and common features with other orthologous genes. Expression levels of entire genes involved in the carotenoid biosynthetic pathway were investigated in the peel, pulp, and stalk of chamoe cultivars Ohbokggul and Gotgam. Most of the carotenoid biosynthetic genes were expressed at their highest levels in the stalk, whereas carotenoids were highly distributed in the peel. The expression levels of all carotenoid biosynthetic genes in fruits of the native cultivar Gotgam chamoe were higher than those in the cultivar Ohbokggul chamoe, consistent with the abundant carotenoid accumulation in Gotgam chamoe fruits and trace carotenoid content of Ohbokggul chamoe fruit. Lutein and β-carotene were the dominant carotenoids; high levels (278.05 μg g-1 and 112.02 μg g-1 dry weight, respectively) were found in the peel of Gotgam chamoe. Our findings may provide a foun...Continue Reading

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Citations

Mar 27, 2020·Foods·Mercedes Del Río-Celestino, Rafael Font
Mar 12, 2021·The Journal of Nutritional Biochemistry·Shweta SharmaSubhrajyoti Chatterjee

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Datasets Mentioned

BETA
U58919

Methods Mentioned

BETA
PCR

Software Mentioned

Primerquest
BLAST
Primer Quest
BioEdit Sequence Alignment Editor
Statistical Analysis System ( SAS
Rad
Bio
GeneXpression Macro Chromo4

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