Parietaria officinalis
Taxonomy: Angiospermae, Rosales, Urticaceae, Parietaria
Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Parietaria-officinalis.htm
Published: 2020-10-05
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: porate, polarity: isopolar, P/E-ratio: isodiametric, 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: 3, aperture type: porus, aperture condition: porate, triporate, aperture peculiarities: operculum
Ornamentation and Structure
LM ornamentation LM: psilate, nexine: -, sexine: -, SEM ornamentation SEM: microechinate, 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: starch, cell number: 2-celled, Ubisch bodies: present
Annotations: oncus-like thickening below apertures; endexine very thin
Author(s) of diagnosis: Diethart, Bernadette; Heigl, Helmut
Pictures
1. habitus
2. flower(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. slightly oblique polar view
13. equatorial view
14. equatorial view
15. aperture and exine surface
16. dry pollen grains
17. anther wall with Ubisch bodies
18. anther wall with Ubisch bodies
19. pollen grain in cross section
20. interapertural area of pollen wall
21. interapertural area of pollen wall
22. apertural area of pollen wall
Picture legend
- habitus, photographer: Diethart, B.
- flower(s), photographer: Diethart, B.
- flower(s), photographer: Diethart, B.
- pollen grain with generative cell - fresh, unfixed, aceto-carmine, photographer: Diethart, B.
- upper focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
- optical section - fresh, acetolyzed, unstained, photographer: Diethart, B.
- lower focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
- 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: Diethart, B.
- slightly oblique polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- aperture and exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- dry pollen grains - dry, sputter coated with gold, photographer: Diethart, B.
- anther wall with Ubisch bodies - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- anther wall with Ubisch bodies - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
- pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
- interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, lipid-test, photographer: Diethart, B.
- interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, potassium permanganate, photographer: Diethart, B.
- apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Diethart, B.
Literature
- (1996) Immunocytochemical localization of allergenic proteins in Parietaria judaica L (Urticaceae) pollen grains. Eur J Cell Biol 70: 179-188
- (1984) Pollen grain viability in Parietaria judaica L. during the long blooming period and correlation with meteorological conditions and allergic disease. Giorn Bot Ital 118: 163-178
- (1986) On the ontogeny of the oncus in the pollen grain of Parietaria officinalis ssp. judaica (Urticaceae). Can J Bot 64: 3155-3167
- (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:
Diethart B., Heigl H. 2020. Parietaria officinalis. In: PalDat - A palynological database. https://www.paldat.org/pub/Parietaria_officinalis/303782; accessed 2025-04-30