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Phenalenones from Strelitzia reginae
Journal of Natural Products, 2000Phytochemical analysis of rhizomes of Strelitzia reginae resulted in the isolation and identification of an unusual new (1) and four known phenalenone-type compounds, which were identified using MS and NMR spectroscopic techniques. The occurrence of phenalenones in Strelitziaceae, which has been established for the first time, is of chemotaxonomic ...
Hölscher, D., Schneider, B.
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VEGETATIVE PROPAGATION OF STRELITZIA REGINAE *
Acta Horticulturae, 1988Strelitzia reginae is propagated either by division of naturally developed branches known as fans or by seeds. Vegetative propagation by division is limited by a low rate of multiplication being 0.5–1.5 divisions per branch per year. Branching originates in the division of the apical dome with an absolute abscence of branching from axillary buds ...
van de Pol, P.A., van Hell, T.F.
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Sunbird pollination of Strelitzia nicolai
Oecologia, 1981The role of sunbirds (Nectariniidae) in the pollination ecology of Strelitzia nicolai (Musaceae) was studied for one year in a coastal dune forest in Zululand, South Africa. It was found that S. nicolai produced large quantities of low quality nectar (1.74 j/μl); that nectar production was highest during the day-time; and that the flowers displayed ...
S K, Frost, P G H, Frost
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Anatomy of the Strelitzia reginae flower (Strelitziaceae)
Nordic Journal of Botany, 1986The Strelitzia reginae Ait. flower has many remarkable structural spezializations, the histology and cytology of which we have investigated. The chromoplasts of the sepals are conspicuously elongated and enclose numerous carotenoid tubules parallel to the ...
Eva Kronestedt, Bjöm Walles
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Histogenesis of the transmitting tract in Strelitzia reginae
Nordic Journal of Botany, 2001Organisation and development of the stigmatic, stylar and ovarian parts of the transmitting tract in Strelitzia reginae were evaluated. They were characterised by 1) cell shape, 2) appearance of distal cell wall, 3) type of plastid, 4) and vacuolar system.
E. C. Kronestedt‐Robards +2 more
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Pollen Grain Development and Tapetal Changes in Strelitzia Reginae (Strelitziaceae)
American Journal of Botany, 1989The proexine that forms within the callosic envelope before the end of the microspore tetrad period is thick (about 1 μm) and exceptionally complex. It has components equatable with tectum, columellae, and a nexine that includes lamellar zones. All these components persist in the exine although late in development they become difficult to recognize ...
Eva C. Kronestedt‐Robards +1 more
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Thread–like formations in the anthers of Strelitzia reginae
Nordic Journal of Botany, 1981In the dehiscent anthers of Strelitzia reginae Ait. thread–like formations occur among the pollen grains. The threads are derived from specialized epidermal cells in the stomium region. These cells are liberated from the normal epidermal cells and from each other along their radial walls.
Eva Kronestedt, Per–Arne Bystedt
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