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PalDat - Palynological Database

an online publication on recent pollen

Phleum pratense

Taxonomy: Angiospermae, Poales, Poaceae, Phleum

Published: 2016-07-18

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: ulcerate,  polarity: heteropolar,  shape: prolate,  outline in polar view: circular,  shape (dry pollen): irregular,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): irregularly infolded,  aperture number: 1,  aperture type: ulcus,  aperture condition: ulcerate,  aperture peculiarities: annulus, operculum

Ornamentation and Structure

LMornamentation LM: scabrate,  nexine: -,  sexine: -,  SEMornamentation SEM: areolate, microechinate,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -

Miscellaneous

pollen coatings: absent,  reserves in cytoplasm: starch, polysaccharide vesicles,  cell number: 3-celled,  Ubisch bodies: present

Author(s) of diagnosis: Diethart, Bernadette

Pictures

flower(s)

1. flower(s)

flower(s)

2. flower(s)

pollen grain with two sperm cells

3. pollen grain with two sperm cells

upper focus

4. upper focus

optical section

5. optical section

lower focus

6. lower focus

polar view

7. polar view

equatorial view

8. equatorial view

aperture

9. aperture

exine surface

10. exine surface

dry pollen grains

11. dry pollen grains

dry pollen grain

12. dry pollen grain

anther wall with Ubisch bodies

13. anther wall with Ubisch bodies

anther wall with Ubisch bodies

14. anther wall with Ubisch bodies

pollen grain in cross section

15. pollen grain in cross section

interapertural area of pollen wall

16. interapertural area of pollen wall

apertural area of pollen wall

17. apertural area of pollen wall

vegetative nucleus (right) and sperm cell (left)

18. vegetative nucleus (right) and sperm cell (left)

Picture legend

  1. flower(s), photographer: Diethart, B.
  2. flower(s), photographer: Diethart, B.
  3. pollen grain with two sperm cells - fresh, unfixed, aceto-carmine, photographer: Diethart, B.
  4. upper focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
  5. optical section - fresh, acetolyzed, unstained, photographer: Diethart, B.
  6. lower focus - fresh, acetolyzed, unstained, photographer: Diethart, B.
  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. 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. dry pollen grain - dry, sputter coated with gold, photographer: Diethart, B.
  13. anther wall with Ubisch bodies - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Diethart, B.
  14. anther wall with Ubisch bodies - fresh, formalin-acetic-alcohol & critical point dried & rehydrated (water), photographer: Diethart, B.
  15. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  16. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  17. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Diethart, B.
  18. vegetative nucleus (right) and sperm cell (left) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-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. 2016. Phleum pratense. In: PalDat - A palynological database. https://www.paldat.org/pub/Phleum_pratense/301219;jsessionid=74498B7E58EA4289FA7C5F880B16E28E; accessed 2018-11-13

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