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PalDat - Palynological Database

an online publication on recent pollen

Ambrosia artemisiifolia

Taxonomy: Angiospermae, Asterales, Asteraceae, Ambrosia

Published: 2016-02-08

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  pollen class: colporate,  polarity: isopolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): spheroidal,  outline in polar view (dry pollen): lobate,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 3,  aperture type: colporus,  aperture condition: colporate, tricolporate,  aperture peculiarities: brevicolporus

Ornamentation and Structure

LMornamentation LM: echinate,  nexine: present,  sexine: present,  SEMornamentation SEM: echinate, perforate,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: absent,  endexine: lamellar-continuous,  intine: monolayered,  wall peculiarities: -

Miscellaneous

pollen coatings: absent,  reserves in cytoplasm: -,  cell number: 3-celled,  Ubisch bodies: absent

Annotations

the aperture seems to be porate as the the colpus is very short and almost not visible

Author(s) of diagnosis: Sam, Saskia; Halbritter, Heidemarie

Pictures

habitus

1. habitus

inflorescence(s)

2. inflorescence(s)

3-celled pollen

3. 3-celled pollen

acetolyzed pollen, upper focus

4. acetolyzed pollen, upper focus

acetolyzed pollen, optical section

5. acetolyzed pollen, optical section

acetolyzed pollen, lower focus

6. acetolyzed pollen, lower focus

hydrated pollen, polar view

7. hydrated pollen, polar view

polar view

8. polar view

hydrated pollen, equatorial view

9. hydrated pollen, equatorial view

hydrated pollen, equatorial view

10. hydrated pollen, equatorial view

hydrated pollen, equatorial view

11. hydrated pollen, equatorial view

aperture

12. aperture

exine surface

13. exine surface

dry pollen grains

14. dry pollen grains

dry pollen

15. dry pollen

dry pollen

16. dry pollen

aperture

17. aperture

exine surface

18. exine surface

Ubisch bodies absent

19. Ubisch bodies absent

cross section of pollen grain

20. cross section of pollen grain

pollen wall, aperture area

21. pollen wall, aperture area

pollen wall, aperture area

22. pollen wall, aperture area

pollen wall, interapertural area

23. pollen wall, interapertural area

Picture legend

  1. habitus, photographer: Sam, S.
  2. inflorescence(s), photographer: Sam, S.
  3. 3-celled pollen - dry, unfixed & rehydrated (water), aceto-carmine, photographer: Sam, S.
  4. acetolyzed pollen, upper focus - dry, acetolyzed, unstained, photographer: Sam, S.
  5. acetolyzed pollen, optical section - dry, acetolyzed, unstained, photographer: Sam, S.
  6. acetolyzed pollen, lower focus - dry, acetolyzed, unstained, photographer: Sam, S.
  7. hydrated pollen, polar view - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  8. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. hydrated pollen, equatorial view - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  10. hydrated pollen, equatorial view - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  11. hydrated pollen, equatorial view - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  12. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  13. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  14. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  15. dry pollen - dry, sputter coated with gold, photographer: Sam, S.
  16. dry pollen - dry, sputter coated with gold, photographer: Sam, S.
  17. aperture - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  18. exine surface - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  19. Ubisch bodies absent - dry, sputter coated with gold, photographer: Sam, S.
  20. cross section of pollen grain - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
  21. pollen wall, aperture area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
  22. pollen wall, aperture area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
  23. pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.

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:

Sam S., Halbritter H. 2016. Ambrosia artemisiifolia. In: PalDat - A palynological database. https://www.paldat.org/pub/Ambrosia_artemisiifolia/300425;jsessionid=D08EFE806567E58B49594202D48B2057; accessed 2018-11-18

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