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PalDat - Palynological Database

an online publication on recent pollen

Quercus robur

Taxonomy: Angiospermae, Fagales, Fagaceae, Quercus

Published: 2018-10-08

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: colpate, colporate,  polarity: isopolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): prolate,  outline in polar view (dry pollen): lobate,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 3,  aperture type: colpus,  aperture condition: colpate, tricolpate,  aperture peculiarities: colporoidate

Ornamentation and Structure

LMornamentation LM: scabrate,  nexine: -,  sexine: -,  SEMornamentation SEM: perforate,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: discontinuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -

Miscellaneous

pollen coatings: absent,  reserves in cytoplasm: lipids,  cell number: 2-celled,  Ubisch bodies: present

Annotations

endexine very thin

Author(s) of diagnosis: Diethart, Bernadette; Bouchal, Johannes Martin

Pictures

flower(s)

1. flower(s)

pollen grain with generative cell

2. pollen grain with generative cell

upper focus

3. upper focus

optical section

4. optical section

lower focus

5. lower focus

equatorial view,polar view

6. equatorial view, polar view

polar view

7. polar view

equatorial view

8. equatorial view

detail of aperture

9. detail of aperture

exine surface

10. exine surface

dry pollen grains

11. dry pollen grains

polar view (dry pollen grain)

12. polar view (dry pollen grain)

equatorial view

13. equatorial view

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

apertural area of pollen wall

18. apertural area of pollen wall

pollen wall at apertural area with Ubisch bodies

19. pollen wall at apertural area with Ubisch bodies

Picture legend

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

Literature

  • Adler W, Oswald K, Fischer R. (1994) Exkursionsflora von Österreich : 1180
  • Halbritter, H (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., Bouchal J. 2018. Quercus robur. In: PalDat - A palynological database. https://www.paldat.org/pub/Quercus_robur/303318;jsessionid=A92F8138715DACAC5DDCB2D61D449CB4; accessed 2018-11-15

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