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PalDat - Palynological Database

an online publication on recent pollen

Quercus cerris

Taxonomy: Angiospermae, Fagales, Fagaceae, Quercus

Published: 2016-07-13

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,  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: -

Ornamentation and Structure

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

Miscellaneous

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

Annotations

endexine very thin

Author(s) of diagnosis: Diethart, Bernadette

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

polar view

6. polar view

equatorial view

7. equatorial view

slightly oblique equatorial view

8. slightly oblique equatorial view

detail of aperture

9. detail of aperture

detail of aperture

10. detail of aperture

exine surface

11. exine surface

dry pollen grains

12. dry pollen grains

polar view (dry pollen grain)

13. polar view (dry pollen grain)

dry pollen grain in equatorial view

14. dry pollen grain in equatorial view

Ubisch bodies on inner anther wall

15. Ubisch bodies on inner anther wall

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

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. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  7. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  8. slightly oblique 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. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  11. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  12. dry pollen grains - dry, sputter coated with gold, photographer: Diethart, B.
  13. polar view (dry pollen grain) - dry, sputter coated with gold, photographer: Diethart, B.
  14. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Diethart, B.
  15. Ubisch bodies on inner anther wall - 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, modified Thiéry-test, photographer: Diethart, B.
  18. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, 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. 2016. Quercus cerris. In: PalDat - A palynological database. https://www.paldat.org/pub/Quercus_cerris/301213;jsessionid=AC32BB1C3C5F97DB1C87DD9C50E44842; accessed 2018-11-17

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