Populus nigra
Taxonomy: Angiospermae, Malpighiales, Salicaceae, Populus
Published: 2020-07-29
Pollen Description
Shape, Size and Aperture
pollen unit: monad, dispersal unit and peculiarities: monad, size (pollen unit): medium-sized (26-50 µm), size of hydrated pollen (LM): 26-30 µm, shortest polar axis in equatorial view (LM): -, longest polar axis in equatorial view (LM): -, shortest diameter in equatorial or polar view (LM): 26-30 µm, longest diameter in equatorial or polar view (LM): 26-30 µm, pollen class: inaperturate, polarity: isopolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): oblique, P/E-ratio (dry pollen): -, shape (dry pollen): irregular, outline in polar view (dry pollen): irregular, infoldings (dry pollen): irregularly infolded, aperture number: none, aperture type: no aperture, aperture condition: inaperturate, aperture peculiarities: -
Ornamentation and Structure
LM ornamentation LM: scabrate, verrucate, gemmate, nexine: -, sexine: -, SEM ornamentation SEM: no suitable term, suprasculpture SEM: -, TEM tectum: semitectate, infratectum: columellate, foot layer: discontinuous, endexine: compact-continuous, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: starch, cell number: 2-celled, Ubisch bodies: present
Annotations: endexine thin; ornamentation occasional microechinate
Author(s) of diagnosis: Halbritter, Halbritter; Sam, Saskia; Heigl, Helmut
Pictures
1. habitus
2. inflorescence(s)
3. acetolyzed pollen, upper focus
4. acetolyzed pollen, optical section
5. acetolyzed pollen, lower focus
6. generative cell
7. hydrated Pollen
8. hydrated Pollen
9. hydrated Pollen
10. hydrated pollen grains
11. hydrated pollen grain
12. exine surface
13. exine surface
14. dry pollen grains
15. Ubisch bodies on locule wall
16. pollen grain in cross section
17. pollen wall, interapertural area
18. pollen wall, interapertural area
19. vegetative nucleus and generative cell
20. Ubisch bodies on locule wall
Picture legend
- habitus, photographer: Sam, S.
- inflorescence(s), photographer: Sam, S.
- acetolyzed pollen, upper focus - dry, acetolyzed, unstained, photographer: Sam, S.
- acetolyzed pollen, optical section - dry, acetolyzed, unstained, photographer: Sam, S.
- acetolyzed pollen, lower focus - dry, acetolyzed, unstained, photographer: Sam, S.
- generative cell - fresh, unfixed, aceto-carmine, 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.
- hydrated pollen grains - fresh, DMP & critical point dried, photographer: Halbritter, H.
- hydrated pollen grain - fresh, DMP & critical point dried, photographer: Halbritter, H.
- exine surface - fresh, DMP & critical point dried, photographer: Halbritter, H.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
- Ubisch bodies on locule wall - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
- pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, potassium permanganate, photographer: Sam, S.
- vegetative nucleus and generative cell - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- Ubisch bodies on locule wall - 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. 2020. Populus nigra. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Populus_nigra/303756;jsessionid=1DAFA9E09053EFB537ACF9F89474F95A; accessed 2025-01-10