Journal
JOURNAL OF NATURAL MEDICINES
Volume 75, Issue 4, Pages 1050-1057Publisher
SPRINGER JAPAN KK
DOI: 10.1007/s11418-021-01550-w
Keywords
Metabolomics; Pinellia ternata; Shading; Alkaloid; Organic acid
Categories
Funding
- National Natural Science Foundation of China [81803665, 81573518, 31501368]
- Project of Natural Science Research of Universities in Anhui Province, China [KJ2018A0403, KJ2019B07, KJ2017A846]
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Pinellia ternata, a native herb in China, has been found to have increased tuber production with shading treatment. Metabolomic analysis revealed that organic acids enriched in shaded environments may contribute to tuber quality improvement.
Pinellia ternata is a native herb in China, and its tuber is widely-used in traditional Chinese medicines. It has been identified that the shading treatment promotes tuber production during cultivation. However, the tuber quality in shaded environments is unknown, which limits the scientific cultivation of P. ternata. In this study, a metabolomics approach based on UHPLC-MS was applied to assess the metabolic components of P. ternata in response to shading. Diverse metabolites were profiled using the metabolomics approach. Then, datasets of P. ternata cultivated in natural light (control) and shaded environments were subjected to multivariate analyses. Two P. ternata tuber products were well separated by the PCA. In total, four P. ternata alkaloids with contents that were not altered by the shaded environment were detected. Metabolomic analyses further identified several organic acids [mevalonic acid, 12,13-dihydroxy-9Z-octadecenoic acid (12, 13-DiHOME), urocanic acid, and gamma-aminobutyric acid] that were largely enriched in the shaded environment, which likely contributed to tuber quality and growth. This study determined that shading probably improves the quality of P. ternata tubers and laid a foundation for exploring the regulatory mechanism of the shade response in P. ternata.
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