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PalDat - Palynological Database

an online publication on recent pollen

Datura stramonium

Taxonomy: Angiospermae, Solanales, Solanaceae, Datura

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Datura-stramonium.htm

Published: 2020-12-15

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): large (51-100 µm),  size of hydrated pollen (LM): 51-100 µm,  shortest polar axis in equatorial view (LM): 51-100 µm,  longest polar axis in equatorial view (LM): 51-100 µm,  shortest diameter in equatorial or polar view (LM): 51-100 µm,  longest diameter in equatorial or polar view (LM): 51-100 µm,  pollen class: colpate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): oblique,  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: colpus,  aperture condition: colpate, tricolpate,  aperture peculiarities: brevicolpus

Ornamentation and Structure

LMornamentation LM: rugulate, striate,  nexine: -,  sexine: -,  SEMornamentation SEM: no suitable term,  suprasculpture SEM: -,  TEMtectum: semitectate,  infratectum: columellate,  foot layer: discontinuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Author(s) of diagnosis: Bombosi, Paula; Heigl, Helmut

Pictures

flower(s)

1. flower(s)

polar view,upper focus

2. polar view, upper focus

optical section

3. optical section

polar view,lower focus

4. polar view, lower focus

pollen grain with vegetative nucleus (asterisk) and generative cell (arrow)

5. pollen grain with vegetative nucleus (asterisk) and generative cell (arrow)

hydrated pollen

6. hydrated pollen

hydrated pollen

7. hydrated pollen

hydrated pollen

8. hydrated pollen

polar view

9. polar view

equatorial view

10. equatorial view

aperture

11. aperture

exine surface

12. exine surface

dry pollen grains

13. dry pollen grains

pollen grain in cross section

14. pollen grain in cross section

interapertural area of pollen wall, intine (I), endexine (E)

15. interapertural area of pollen wall, intine (I), endexine (E)

apertural area of pollen wall, intine (I)

16. apertural area of pollen wall, intine (I)

vegetative nucleus (asterisk) and generative cell (arrow)

17. vegetative nucleus (asterisk) and generative cell (arrow)

Picture legend

  1. flower(s), photographer: Bombosi, P.
  2. polar view, upper focus - dry, acetolyzed, unstained, photographer: Bombosi, P.
  3. optical section - dry, acetolyzed, unstained, photographer: Bombosi, P.
  4. polar view, lower focus - dry, acetolyzed, unstained, photographer: Bombosi, P.
  5. pollen grain with vegetative nucleus (asterisk) and generative cell (arrow) - fixed, glutaraldehyde, aceto-carmine, photographer: Bombosi, P.
  6. hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  7. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  8. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  9. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bombosi, P.
  10. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bombosi, P.
  11. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bombosi, P.
  12. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bombosi, P.
  13. dry pollen grains - dry, sputter coated with gold, photographer: Bombosi, P.
  14. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Bombosi, P.
  15. interapertural area of pollen wall, intine (I), endexine (E) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Bombosi, P.
  16. apertural area of pollen wall, intine (I) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Bombosi, P.
  17. vegetative nucleus (asterisk) and generative cell (arrow) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Bombosi, P.

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:

Bombosi P., Heigl H. 2020. Datura stramonium. In: PalDat - A palynological database. https://www.paldat.org/pub/Datura_stramonium/304468;jsessionid=10D6B7E4EBD27461DAE5D0C85C341A77; accessed 2024-03-29

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