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: verrucate, scabrate, 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
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://www.paldat.org/pub/Populus_nigra/303756;jsessionid=DC203DB765069AB9BF3D1A698F718C7D; accessed 2024-05-01