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- Title
Biochemical Characterization of Parsley Glycosyltransferases Involved in the Biosynthesis of a Flavonoid Glycoside, Apiin.
- Authors
An, Song; Yamashita, Maho; Iguchi, Sho; Kihara, Taketo; Kamon, Eri; Ishikawa, Kazuya; Kobayashi, Masaru; Ishimizu, Takeshi
- Abstract
The flavonoid glycoside apiin (apigenin 7-O-[β-D-apiosyl-(1→2)-β-D-glucoside]) is abundant in apiaceous and asteraceous plants, including celery and parsley. Although several enzymes involved in apiin biosynthesis have been identified in celery, many of the enzymes in parsley (Petroselinum crispum) have not been identified. In this study, we identified parsley genes encoding the glucosyltransferase, PcGlcT, and the apiosyltransferase, PcApiT, that catalyze the glycosylation steps of apiin biosynthesis. Their substrate specificities showed that they were involved in the biosynthesis of some flavonoid 7-O-apiosylglucosides, including apiin. The expression profiles of PcGlcT and PcApiT were closely correlated with the accumulation of flavonoid 7-O-apiosylglucosides in parsley organs and developmental stages. These findings support the idea that PcGlcT and PcApiT are involved in the biosynthesis of flavonoid 7-O-apiosylglucosides in parsley. The identification of these genes will elucidate the physiological significance of apiin and the development of apiin production methods.
- Subjects
FLAVONOIDS; BIOSYNTHESIS; GLYCOSYLTRANSFERASES; FLAVONOID glycosides; PARSLEY; PRODUCTION methods
- Publication
International Journal of Molecular Sciences, 2023, Vol 24, Issue 23, p17118
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms242317118