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PalDat - Palynological Database

an online publication on recent pollen

Parietaria officinalis

Taxonomy: Spermatophyta, Urticales, Urticaceae, Parietaria

Published: 2005-06-01

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): -,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): -,  longest diameter in equatorial or polar view (LM): -,  pollen class: -,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): -,  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: -,  aperture condition: porate,  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, B.

Pictures

habitus

1. habitus

flower(s)

2. flower(s)

flower(s)

3. flower(s)

pollen grain with generative cell

4. pollen grain with generative cell

upper focus

5. upper focus

optical section

6. optical section

lower focus

7. lower focus

polar view

8. polar view

slightly oblique polar view

9. slightly oblique polar view

equatorial view

10. equatorial view

equatorial view

11. equatorial view

aperture and exine surface

12. aperture and exine surface

dry pollen grains

13. dry pollen grains

anther wall with Ubisch bodies

14. anther wall with Ubisch bodies

anther wall with Ubisch bodies

15. anther wall with Ubisch bodies

pollen grain in cross section

16. pollen grain in cross section

interapertural area of pollen wall

17. interapertural area of pollen wall

interapertural area of pollen wall

18. interapertural area of pollen wall

apertural area of pollen wall

19. apertural area of pollen wall

Picture legend

  1. habitus, photographer: Diethart, B.
  2. flower(s), photographer: Diethart, B.
  3. flower(s), photographer: Diethart, B.
  4. pollen grain with generative cell - fresh, unfixed, aceto-carmine, photographer: Diethart, B.
  5. upper focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
  6. optical section - fresh, acetolyzed, unstained, photographer: Diethart, B.
  7. lower focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
  8. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  9. slightly oblique polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  10. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  11. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  12. aperture and exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  13. dry pollen grains - dry, sputter coated with gold, photographer: Diethart, B.
  14. anther wall with Ubisch bodies - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  15. anther wall with Ubisch bodies - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  16. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  17. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, lipid-test, photographer: Diethart, B.
  18. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, potassium permanganate, photographer: Diethart, B.
  19. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Diethart, B.

Literature

  • Casas C, Marquez J, Suárez-Cervera M, Seoane-Camba JA (1996) Immunocytochemical localization of allergenic proteins in Parietaria judaica L (Urticaceae) pollen grains. Eur J Cell Biol 70: 179-188
  • Franchi GG, Pacini E, Rottoli P (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
  • Seoane-Camba JA, Suárez-Cervera M (1986) On the ontogeny of the oncus in the pollen grain of Parietaria officinalis ssp. judaica (Urticaceae). Can J Bot 64: 3155-3167

Copyright and Citation

Cite this publication as:

Diethart B. 2005. Parietaria officinalis. In: PalDat - A palynological database. https://www.paldat.org/pub/Parietaria_officinalis/113718; accessed 2025-04-30

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