SEM studies on sporangia and pollen morphology of Gingko biloba cultivars

• Autorzy: Klimko M. , Bykowska J. , Korszun S.
• 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.

Słowa kluczowe

EN

SEM analysis; sporangia; pollen morphology; pollen grain; Ginkgo biloba; male; cone; plant cultivar

• Wydawca: -
• Czasopismo: Steciana
• Rocznik: 2016
• Tom: 20
• Numer: 3
• Opis fizyczny: p.173-182,fig.,ref.

Twórcy

autor

Klimko M.

• Department of Botany, Poznan University of Life Sciences, Wojska Polskiego 71C, 60- 625 Poznan, Poland

autor

Bykowska J.

• Department of Dendrology, Pomology and Nursery, Poznan University of Life Sciences, Dabrowskiego 159, 60-594 Poznan, Poland

autor

Korszun S.

• Department of Dendrology, Pomology and Nursery, Poznań University of Life Sciences, Dąbrowskiego 159, 60-594 Poznań, Poland

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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

Identyfikatory

DOI

10.12657/steciana.020.018