Phenylanthraquinones and flavone-C-glucosides from the disjunct Bulbinella in New Zealand
| Autor: | Janice M. Lord, Nigel B. Perry, Alistair T. B. Richardson |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Bulbine
Anthraquinones Plant Science Horticulture Disjunct 010402 general chemistry 01 natural sciences Biochemistry Plant Roots Africa Southern Antimalarials Magnoliopsida Glucosides Botany Liliaceae Asphodelaceae Glycosides Molecular Biology Chromatography High Pressure Liquid chemistry.chemical_classification biology Molecular Structure 010405 organic chemistry Glycoside General Medicine biology.organism_classification Flavones Bulbinella 0104 chemical sciences Plant Leaves chemistry Chemotaxonomy Stele Kniphofia New Zealand |
| Zdroj: | Phytochemistry. 134 |
| ISSN: | 1873-3700 |
| Popis: | The genera Bulbine, Bulbinella and Kniphofia produce phenylanthraquinones and are mostly found in southern Africa, although a disjunct group of Bulbinella species endemic to New Zealand also contain phenylanthraquinones as reported herein. The sub-Antarctic megaherb B. rossii yielded sulphated phenylanthraquinones, including a phenylanthraquinone found to carry a sulphated glycoside substituent, 4′-O-demethylknipholone-4′-β-D-xylopyranosyl-3″-sulphate. A sensitive HPLC method was used to analyse 5 of the 6 New Zealand Bulbinella species, all of which contained phenylanthraquinones. Leaves and roots had different profiles, but species were not distinct. Roots were rich in sulphated and free phenylanthraquinones (0.27 ± 0.09% dry wt), whereas leaves typically only contained free knipholone (0.14 ± 0.01%). Localisation of phenylanthraquinones to the stele and peel was observed in roots. Two flavone-C-glucosides were found in leaves of Bulbinella. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect