Park Yun Ji, Park Soo-Yun, Valan Arasu Mariadhas, Al-Dhabi Naif Abdullah, Ahn Hyung-Geun, Kim Jae Kwang, Park Sang Un
Department of Crop Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Korea.
National Institute of Agricultural Science, Rural Development Administration, Wanju-gun, Jeollabuk-do 565-851, Korea.
Molecules. 2017 Feb 18;22(2):313. doi: 10.3390/molecules22020313.
Species of , 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 species, and . In total, we detected seven carotenoids in the examined cultivars: violaxanthin, lutein, zeaxanthin, α-carotene, β-carotene, 9--β-carotene, and 13--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 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 and . 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.
属于菊科的 物种表现出不同的特征，包括花朵大小、形状和颜色；植株大小；以及叶片形状。在本研究中，我们测定了来自两个物种 和 的六个栽培品种之间初级代谢产物和类胡萝卜素产量的差异。总共，我们在所检测的栽培品种中检测到七种类胡萝卜素：紫黄质、叶黄素、玉米黄质、α-胡萝卜素、β-胡萝卜素、9-顺式-β-胡萝卜素和13-顺式-β-胡萝卜素。在所有栽培品种中，叶黄素是含量最丰富的类胡萝卜素。此外，花朵中每种类胡萝卜素的含量因栽培品种而异。主成分分析（PCA）有助于区分栽培品种，但印加黄和发现橙除外。此外，PCA和正交投影到潜在结构判别分析（OPLS-DA）结果清楚地区分了 和 。包括木糖、柠檬酸、缬氨酸、甘氨酸和半乳糖在内的初级代谢产物是促进物种分离的主要成分。富含碳的代谢产物，包括三羧酸循环和糖代谢的代谢产物，与类胡萝卜素之间存在明显的正相关关系。
