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an online publication on recent pollen

Papaver rhoeas

Taxonomy: Angiospermae, Ranunculales, Papaveraceae, Papaver

Published: 2016-10-21

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: colpate,  polarity: isopolar,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): prolate,  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: scabrate,  nexine: -,  sexine: -,  SEMornamentation SEM: microechinate, perforate,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: discontinuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -

Miscellaneous

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

Annotations

endexine sporadically interrupted

Author(s) of diagnosis: Oberschneider, Wolfgang

Pictures

flower(s)

1. flower(s)

upper focus

2. upper focus

optical section

3. optical section

lower focus

4. lower focus

polar view

5. polar view

equatorial view

6. equatorial view

detail of aperture

7. detail of aperture

exine surface

8. exine surface

polar view of dry pollen grain

9. polar view of dry pollen grain

equatorial view

10. equatorial view

interapertural area of pollen wall

11. interapertural area of pollen wall

aperture

12. aperture

generative cell (top right) and vegetative nucleus

13. generative cell (top right) and vegetative nucleus

Picture legend

  1. flower(s), photographer: Oberschneider, W.
  2. upper focus - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  3. optical section - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  4. lower focus - fresh, acetolyzed, unstained, photographer: Oberschneider, W.
  5. polar view - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  6. equatorial view - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  7. detail of aperture - fresh, rehydration (water) & chloroform & critical point dried & sputter coated with gold, photographer: Oberschneider, W.
  8. exine surface - fresh, rehydration (water) & chloroform & DMP & critical point dried, photographer: Oberschneider, W.
  9. polar view of dry pollen grain - dry, sputter coated with gold, photographer: Oberschneider, W.
  10. equatorial view - dry, sputter coated with gold, photographer: Oberschneider, W.
  11. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.
  12. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Oberschneider, W.
  13. generative cell (top right) and vegetative nucleus - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Oberschneider, W.

Literature

  • Cresti M, Milanesi C, Salvatici P, Van Aelst AC (1990) Ultrastructural observations of Papaver rhoeas mature pollen grains. Bot Acta 103: 349-354
  • Oberschneider W (1998) Pollenmorphologie der Ranunculanae. Diplomarbeit. Universität Wien : 125 pp
  • Van Aelst AC, Mueller T, Dueggelin M, Guggenheim R (1989) Three-dimensional observations on freeze-fractured frozen hydrated Papaver dubium pollen with cryo-scanning electron microscopy. Acta Bot Neerl 38: 25-30
  • Van Aelst AC, Van Went JL (1991) The ultrastructure of mature Papaver dubium L. pollen grains. Acta Bot Neerl 40: 319-328
  • 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:

Oberschneider W. 2016. Papaver rhoeas. In: PalDat - A palynological database. https://www.paldat.org/pub/Papaver_rhoeas/301710;jsessionid=C033190265C5E169ED01C0A577D10252; accessed 2018-11-17

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