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PalDat - Palynological Database

an online publication on recent pollen

Sinapis alba

Taxonomy: Angiospermae, Brassicales, Brassicaceae, Sinapis

Links: http://flora.nhm-wien.ac.at/seiten-arten/sinapis-alba-alba.htm

Published: 2020-11-20

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  size of hydrated pollen (LM): 26-30 µm,  shortest polar axis in equatorial view (LM): 21-25 µm,  longest polar axis in equatorial view (LM): 26-30 µm,  shortest diameter in equatorial or polar view (LM): 26-30 µm,  longest diameter in equatorial or polar view (LM): 26-30 µm,  pollen class: colpate,  polarity: isopolar,  P/E-ratio: prolate,  shape: -,  outline in polar view: circular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): prolate,  shape (dry pollen): -,  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: aperture membrane ornamented

Ornamentation and Structure

LMornamentation LM: reticulate,  nexine: -,  sexine: -,  SEMornamentation SEM: reticulate,  suprasculpture SEM: -,  TEMtectum: semitectate,  infratectum: columellate,  foot layer: discontinuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

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

hydrated Pollen

5. hydrated Pollen

hydrated Pollen

6. hydrated Pollen

hydrated Pollen

7. hydrated Pollen

polar view

8. polar view

equatorial view

9. equatorial view

detail of aperture

10. detail of aperture

exine surface

11. exine surface

polar view (dry pollen grain)

12. polar view (dry pollen grain)

dry pollen grain in equatorial view

13. dry pollen grain in equatorial view

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)

aperture, intine (I)

16. aperture, intine (I)

vegetative nucleus (asterisk) and sperm cells (arrows)

17. vegetative nucleus (asterisk) and sperm cells (arrows)

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. hydrated Pollen - fresh, glycerine, unstained, photographer: Heigl, H.
  6. hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  7. hydrated Pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
  8. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bombosi, P.
  9. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bombosi, P.
  10. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bombosi, P.
  11. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Bombosi, P.
  12. polar view (dry pollen grain) - dry, sputter coated with gold, photographer: Bombosi, P.
  13. dry pollen grain in equatorial view - 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, modified Thiéry-test, photographer: Bombosi, P.
  16. aperture, intine (I) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Bombosi, P.
  17. vegetative nucleus (asterisk) and sperm cells (arrows) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Bombosi, P.

Literature

  • Halbritter, H (1998) Preparing living pollen material for scanning electron microscopy using 2,2-dimethoxypropane (DMP) and criticalpoint drying. Biotechnic Histochem 73: 137–143
  • Adler W, Oswald K, Fischer R. (1994) Exkursionsflora von Österreich : 1180

Copyright and Citation

Cite this publication as:

Bombosi P., Heigl H. 2020. Sinapis alba. In: PalDat - A palynological database. https://www.paldat.org/pub/Sinapis_alba/303975;jsessionid=4C379ED31C75A153ED80FAC0BCD3DBE8; accessed 2020-12-03

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