Results 271 to 280 of about 35,535 (302)
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American Journal of Botany, 2023
AbstractPremiseMale and female reproductive success is enhanced (increased outcrossing and seed production, respectively) by stamen movement in species that have few stamens per flower. Does such enhancement also occur in species that have many stamens per flower?MethodsWe examined the effects of stamen movement on male and female reproductive success ...
Arisa Sanuki +2 more
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AbstractPremiseMale and female reproductive success is enhanced (increased outcrossing and seed production, respectively) by stamen movement in species that have few stamens per flower. Does such enhancement also occur in species that have many stamens per flower?MethodsWe examined the effects of stamen movement on male and female reproductive success ...
Arisa Sanuki +2 more
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Tradescantia stamen hair mutation bioassay
Mutation Research - Fundamental and Molecular Mechanisms of Mutagenesis, 1994The Tradescantia stamen hair mutation (Trad-SH) assay (clone 4430) was evaluated for its efficiency and reliability as a screen for mutagens in an IPCS collaborative study on plant systems. Four coded chemicals, i.e. azidoglycerol (AG, 3-azido-1,2-propanediol), N-methyl-N-nitrosourea (MNU), sodium azide (NaN3) and maleic hydrazide (MH) were distributed
T H, Ma +6 more
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Antioxidant principles ofNelumbo nucifera stamens
Archives of Pharmacal Research, 2003In our ongoing study to identity antioxidants from natural sources, the antioxidant activity of Nelumbo nucifera stamens was evaluated for their potential to scavenge stable 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radicals, inhibit total reactive oxygen species (ROS) generation, in kidney homogenatas using 2',7'-dichlorodihydrofluorescein diacetate ...
Hyun Ah, Jung +3 more
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Flora, 1972
Summary The study of intermediate phyllomes (stamen-carpels) in Salix as well as the reassessment of previous observations lead the author to put forward a general interpretation of homologies between stamen and carpel. The stamen is considered diplophyllous, i.e. with two tangential blades topping an unifacial filament.
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Summary The study of intermediate phyllomes (stamen-carpels) in Salix as well as the reassessment of previous observations lead the author to put forward a general interpretation of homologies between stamen and carpel. The stamen is considered diplophyllous, i.e. with two tangential blades topping an unifacial filament.
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Stamens and mimic stamens as components of floral colour patterns
Botanische Jahrbücher für Systematik, Pflanzengeschichte und Pflanzengeographie, 2006Lunau, K.: Stamens and mimic stamens as components of floral colour patterns. — Bot. Jahrb. Syst. 127: 13–41. 2007. — ISSN 0006-8152. Dedicated to Professor Dr. Gunther Osche, Freiburg im Breisgau (Germany), on the occasion of his 80th birthday; he discovered the phenomenon of mimic stamens when re-assessing floral colour pattern with his eyes newly ...
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Nature, 1939
AMONG some maize plants (Sutton's White Horse Tooth) originally planted in connexion with other work, there appeared one which bore anomalous male flowers the morphology of which may be worth recording. In the tassel of this plant, in a considerable number of cases, the lower flowers in each spikelet possessed only two stamens; sections showed that ...
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AMONG some maize plants (Sutton's White Horse Tooth) originally planted in connexion with other work, there appeared one which bore anomalous male flowers the morphology of which may be worth recording. In the tassel of this plant, in a considerable number of cases, the lower flowers in each spikelet possessed only two stamens; sections showed that ...
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Laticifers in stamens of Papaver somniferum L
Planta, 1976Articulated anastomosing laticifers were identified at both light and electron microscopic levels in the stamens of Papaver somniferum L. They were observed associated with the phloem forming a continuous system from the filament into the anther of the stamen.
C L, Nessler, P G, Mahlberg
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Stamen Morphology in Nothofagus (Nothofagaceae)
International Journal of Plant Sciences, 1998Stamen morphology is shown to vary considerably in Nothofagus. All species in subgenus Brassospora have heteromorphic, striated epidermal papillae on their anthers. The absence of similar epidermal papillae in other subgenera in Nothofagus or in the putative sister taxa Fagaceae or Betulaceae would suggest that heteromorphic papillae is a derived ...
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