Castanea sativa
Taxonomy: Angiospermae, Fagales, Fagaceae, Castanea
Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Castanea-sativa.htm
Published: 2020-08-03
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): small (10-25 µm), size of hydrated pollen (LM): 11-15 µm, shortest polar axis in equatorial view (LM): 11-15 µm, longest polar axis in equatorial view (LM): 11-15 µm, shortest diameter in equatorial or polar view (LM): 11-15 µm, longest diameter in equatorial or polar view (LM): 11-15 µm, pollen class: colporate, polarity: isopolar, P/E-ratio: prolate, shape: -, outline in polar view: circular, dominant orientation (LM): oblique, P/E-ratio (dry pollen): prolate, shape (dry pollen): -, outline in polar view (dry pollen): lobate, infoldings (dry pollen): aperture(s) sunken, aperture number: 3, aperture type: colporus, aperture condition: colporate, tricolporate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: psilate, nexine: -, sexine: -, SEM ornamentation SEM: rugulate, perforate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: compact-continuous, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: -, cell number: 2-celled, Ubisch bodies: present
Annotations: columellae very short
Author(s) of diagnosis: Halbritter, Heidemarie; Sam, Saskia; Heigl, Helmut
Pictures
1. inflorescence(s)
2. inflorescence(s)
3. flower(s)
4. pollen grain with generative cell
5. upper focus
6. optical section
7. lower focus
8. hydrated Pollen
9. hydrated Pollen
10. hydrated Pollen
11. polar view
12. equatorial view
13. aperture
14. polar area
15. exine surface
16. dry pollen grains
17. Ubisch bodies
18. interapertural area of pollen wall
19. apertural area of pollen wall
20. pollen wall at transition of aperture and interapertural area
21. vegetative nucleus
Picture legend
- inflorescence(s), photographer: Halbritter, H.
- inflorescence(s), photographer: Buchner, R.
- flower(s), photographer: Sam, S.
- pollen grain with generative cell - fresh, unfixed, aceto-carmine, photographer: Sam, S.
- upper focus - fresh, acetolyzed, unstained, photographer: Sam, S.
- optical section - fresh, acetolyzed, unstained, photographer: Sam, S.
- lower focus - fresh, acetolyzed, unstained, photographer: Sam, S.
- hydrated Pollen - fresh, glycerine, unstained, photographer: Heigl, H.
- hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
- hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
- Ubisch bodies - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
- interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- vegetative nucleus - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
Literature
- (1994) Exkursionsflora von Österreich : 1180
- (1998) Preparing living pollen material for scanning electron microscopy using 2,2-dimethoxypropane (DMP) and criticalpoint drying. Biotechnic Histochem 73: 137–143
Copyright and Citation
Cite this publication as:
Halbritter H., Sam S., Heigl H., Buchner R. 2020. Castanea sativa. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Castanea_sativa/303767;jsessionid=B01FE9A2342772286A8DC9632C13C583; accessed 2025-01-25