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PalDat - Palynological Database

an online publication on recent pollen

Pistia stratiotes

Taxonomy: Angiospermae, Alismatales, Araceae, Pistia

Published: 2016-11-03

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: plicate,  polarity: -,  shape: oblate,  outline in polar view: elliptic,  shape (dry pollen): oblate,  outline in polar view (dry pollen): elliptic,  infoldings (dry pollen): not infolded,  aperture number: none,  aperture type: no aperture,  aperture condition: inaperturate,  aperture peculiarities: -

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: -,  TEMtectum: -,  infratectum: absent,  foot layer: absent,  endexine: spongy-continuous,  intine: monolayered,  wall peculiarities: -

Miscellaneous

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

Annotations

ornamentation elements not resistant to acetolysis

Author(s) of diagnosis: Weber, Martina; Halbritter, Heidemarie

Pictures

flowers of Pistia stratiotes

1. flowers of Pistia stratiotes

hydrated pollen

2. hydrated pollen

equatorial view

3. equatorial view

pollen surface

4. pollen surface

pollen surface at apex

5. pollen surface at apex

dry pollen grains

6. dry pollen grains

pollen grain in cross section

7. pollen grain in cross section

pollen wall

8. pollen wall

generative cell and vegetative nucleus

9. generative cell and vegetative nucleus

Picture legend

  1. flowers of Pistia stratiotes, photographer: Halbritter, H.
  2. hydrated pollen - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. pollen surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. pollen surface at apex - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  7. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, Thiéry-test, photographer: Weber, M.
  8. pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, Thiéry-test, photographer: Weber, M.
  9. generative cell and vegetative nucleus - fresh, glutaraldehyde & osmium & potassium ferrocyanide, lipid-test, photographer: Weber, M.

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

Copyright and Citation

Cite this publication as:

WEBER M., HALBRITTER H., Pistia stratiotes. In: PalDat (2016-11-03) - a palynological database. Published on the Internet https://www.paldat.org/pub/Pistia_stratiotes/301841;jsessionid=46B64A3D29733AB565B417D8D4FB5BEF [accessed 2017-10-19]

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