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2016 | 20 | 3 |
Tytuł artykułu

SEM studies on sporangia and pollen morphology of Gingko biloba cultivars

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The present study was conducted to illustrate the micromorphology of mature sporangia and pollen grains of four Ginkgo biloba cultivars: ‘Horizontalis’, ‘Lasiocarpa’, ‘Pragensis’ and ‘Tubifolia’ and is a continuation of earlier investigations on this subject. The sporophylls bear typically two pendulous sporangia, whereas three were found in one cultivar. The sporangia varied in shape from oval, elliptical elongate to boat-shaped and dehisced along a longitudinal slit. The sporangial walls are multilayered. The sculpture of the sporangium is rugose covered with wax crystals (tubules) and the endothecium shows clearly visible fibrous thickening on the wall. The pollen grains are monosulcate, the non-apertural surface is irregularly ridged (striate) or rugulate, with perforations and the germinal aperture (furrow) is covered with verrucae. The current study did not differentiate significantly four cultivars based on sporangia and pollen morphology. The micromorphological traits may be useful for identification and classification of fragments of fossil sporangia and pollen grains.
Wydawca
-
Czasopismo
Rocznik
Tom
20
Numer
3
Opis fizyczny
p.173-182,fig.,ref.
Twórcy
autor
  • Department of Botany, Poznan University of Life Sciences, Wojska Polskiego 71C, 60- 625 Poznan, Poland
autor
  • Department of Dendrology, Pomology and Nursery, Poznan University of Life Sciences, Dabrowskiego 159, 60-594 Poznan, Poland
autor
  • Department of Dendrology, Pomology and Nursery, Poznań University of Life Sciences, Dąbrowskiego 159, 60-594 Poznań, Poland
Bibliografia
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  • For citation: Klimko M., Bykowska J., Korszun S. (2016): SEM studies on sporangia and pollen morphology of Ginkgo biloba cultivars. Steciana 20(3): 173–182. doi: 10.12657/steciana.020.018
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Bibliografia
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