| novel indole s,o-bisdesmoside, calanthoside, the precursor glycoside of tryptanthrin, indirubin, and isatin, with increasing skin blood flow promoting effects, from two calanthe species (orchidaceae). | the methanolic extracts from calanthe discolor lindl. and c. liukiuensis schltr. were found to exhibit hair restoring and skin blood flow promoting activities. through bioassay-guided separation using the skin blood flow increasing effect, a novel indole s,o-bisdesmoside, calanthoside, was isolated together with three new components, glucoindican, calaliukiuenoside, and calaphenanthrenol, and known compounds such as tryptanthrin, indirubin, isatin, and indican. the structures of the new compound ... | 1998 | 9621425 |
| genetic variation and structure within 3 endangered calanthe species (orchidaceae) from korea: inference of population-establishment history and implications for conservation. | it is thought that the warm-temperate vegetation of korea, which at present is limited to southern coastal areas, was founded by individuals from glacial refugia putatively located in southern japan and/or southern china. two scenarios of postglacial recolonization can be hypothesized: 1) extant korean populations are derived from multiple source populations or, 2) they originated from a single source. to test which of these scenarios is more likely, we surveyed patterns of genetic diversity in ... | 2013 | 23125404 |