Why does the flower stalk of Pulsatilla cernua (Ranunculaceae) bend during anthesis?
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Why does the flower stalk of Pulsatilla cernua (Ranunculaceae) bend during anthesis?
Flower stalks of Pulsatilla cernua, an early spring herb in north temperate Asia, changed position from erect to pendulous and back to erect during 6-10 d anthesis. We tested three possible explanations for this movement. Our results showed that (1) this movement is unlikely to be a mechanism to attract pollinators or enhance pollen output, because no pollinator preference was observed between ...
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A new triterpenoid saponin was isolated from Pulsatilla cernua, along with eight known triterpenoids and triterpenoid glycosides. The new compound was identified as 3-O-beta-D-glucopyranosyl-(1-->4)-alpha-L-arabinopyranosyl-bayogenin-28-alpha-L-rhamnopyranosyl-(1-->4)-beta-D-glucopyranosyl-(1-->6)-beta-D-glucopyranosyl ester (1) on the basis of 1D, 2D-NMR techniques, including COSY, HMBC, and H...
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Highly polymorphic microsatellite markers in Pulsatilla vulgaris (Ranunculaceae) using next-generation sequencing1
PREMISE OF THE STUDY We developed novel microsatellite markers for the perennial plant Pulsatilla vulgaris (Ranunculaceae) to investigate the effects of fragmentation on gene flow in this imperiled species. METHODS AND RESULTS We identified microsatellites and developed primers based on 454 shotgun sequences. We identified 14 markers that were polymorphic and produced clean bands. Of these, e...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 2002
ISSN: 0002-9122,1537-2197
DOI: 10.3732/ajb.89.10.1599