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Molecules. 2017 Feb 18;22(2). pii: E313. doi: 10.3390/molecules22020313.

Accumulation of Carotenoids and Metabolic Profiling in Different Cultivars of Tagetes Flowers.

Author information

1
Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea. yunji0825@hanmail.net.
2
National Institute of Agricultural Science, Rural Development Administration, Wanju-gun, Jeollabuk-do 565-851, Korea. psy22@korea.kr.
3
Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia. mvalanarasu@gmail.com.
4
Department of Botany and Microbiology, Addiriyah Chair for Environmental Studies, College of Science, King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia. naldhabi@ksu.edu.sa.
5
Science & Technology Policy Division, Ministry of Agriculture, Food, and Rural Affairs, Sejong-si 30110, Korea. hgahn@korea.kr.
6
Division of Life Sciences and Convergence Research Center for Insect Vectors, Incheon National University, Incheon 406-772, Korea. kjkpj@inu.ac.kr.
7
Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea. supark@cnu.ac.kr.

Abstract

Species of Tagetes, which belong to the family Asteraceae show different characteristics including, bloom size, shape, and color; plant size; and leaf shape. In this study, we determined the differences in primary metabolites and carotenoid yields among six cultivars from two Tagetes species, T. erecta and T. patula. In total, we detected seven carotenoids in the examined cultivars: violaxanthin, lutein, zeaxanthin, α-carotene, β-carotene, 9-cis-β-carotene, and 13-cis-β-carotene. In all the cultivars, lutein was the most abundant carotenoid. Furthermore, the contents of each carotenoid in flowers varied depending on the cultivar. Principal component analysis (PCA) facilitated metabolic discrimination between Tagetes cultivars, with the exception of Inca Yellow and Discovery Orange. Moreover, PCA and orthogonal projection to latent structure-discriminant analysis (OPLS-DA) results provided a clear discrimination between T. erecta and T. patula. Primary metabolites, including xylose, citric acid, valine, glycine, and galactose were the main components facilitating separation of the species. Positive relationships were apparent between carbon-rich metabolites, including those of the TCA cycle and sugar metabolism, and carotenoids.

KEYWORDS:

GC-TOFMS; Tagetes; carotenoid; marigold; metabolic profiling

PMID:
28218705
PMCID:
PMC6155894
DOI:
10.3390/molecules22020313
[Indexed for MEDLINE]
Free PMC Article

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