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an online publication on recent pollen

Digitalis lutea

Taxonomy: Angiospermae, Lamiales, Plantaginaceae, Digitalis

Published: 2016-11-29

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): prolate,  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: aperture membrane smooth

Ornamentation and Structure

LMornamentation LM: psilate,  nexine: -,  sexine: -,  SEMornamentation SEM: microreticulate,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -

Miscellaneous

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

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

Pictures

polar view

1. polar view

equatorial view

2. equatorial view

aperture

3. aperture

exine surface

4. exine surface

polar area

5. polar area

dry pollen grains

6. dry pollen grains

cross section of pollen grain

7. cross section of pollen grain

pollen wall; infratectum filled with pollenkitt (asterisks)

8. pollen wall; infratectum filled with pollenkitt (asterisks)

aperture

9. aperture

vegetative nucleus (asterisk) and generative cell

10. vegetative nucleus (asterisk) and generative cell

Picture legend

  1. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. polar area - 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. cross section of pollen grain - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Svojtka, M.
  8. pollen wall; infratectum filled with pollenkitt (asterisks) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  9. aperture - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  10. vegetative nucleus (asterisk) and generative cell - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.

Literature

  • Inceoglu O, Karamustafa F (1977) The pollen morphology of plants in Ankara region IV. Scrophulariaceae. Commun Fac Sci Univ Ankara Ser C2 Bot 21: 131-143
  • Karim FM, El-Oqlah AA (1989) Palynological studies in the family Scrophulariaceae from Jordan and Iraq. Pollen et Spores 31: 203-214
  • Minkin JP, Eshbaugh WH (1989) Pollen morphology of the Orobanchaceae and rhinanthoid Scrophulariaceae. Grana 28: 1-18
  • Mitroiu-Radulescu N, Moroianu M (1981) Morphologie du pollen et embryogenése chez Digitalis purpurea L. et D. thapsi L. Rev Roum Biol, Biol Vég 26: 117-122
  • Risch C (1939) Die Pollenkörner der in Deutschland wild wachsenden Scrophulariaceen. Ber Deutsch Bot Ges 57: 108-121
  • Sosa-Bourdouil C (1938) Sur le pollen de l'hybride de Digitalis lutea L. X Digitalis purpurea L. Bull Soc Bot France 85: 584-586
  • Varghese TM (1968) Studies in the family Scrophulariaceae - II. J Palynol Lucknow 4: 91-97
  • 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:

Halbritter H., Weber M., Svojtka M. 2016. Digitalis lutea. In: PalDat - A palynological database. https://www.paldat.org/pub/Digitalis_lutea/302373;jsessionid=AF03C0F4495E4C5EDBA9C1D783F704CE; accessed 2018-11-18

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