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an online publication on recent pollen

Atriplex sagittata

Taxonomy: Angiospermae, Caryophyllales, Amaranthaceae, Atriplex

Published: 2016-07-25

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  size of hydrated pollen (LM): -,  shortest polar axis in equatorial view (LM): -,  longest polar axis in equatorial view (LM): -,  shortest diameter in equatorial or polar view (LM): -,  longest diameter in equatorial or polar view (LM): -,  pollen class: porate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): cup-shaped,  outline in polar view (dry pollen): no suitable term,  infoldings (dry pollen): no suitable term,  aperture number: >6,  aperture type: porus,  aperture condition: porate, pantoporate,  aperture peculiarities: pantoaperturate, aperture membrane ornamented

Ornamentation and Structure

LMornamentation LM: scabrate,  nexine: -,  sexine: -,  SEMornamentation SEM: microechinate, perforate,  suprasculpture SEM: -,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: absent,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

pollen coatings: pollenkitt, primexine matrix,  reserves in cytoplasm: starch,  cell number: 3-celled,  Ubisch bodies: present

Author(s) of diagnosis: Sam, Saskia

Pictures

habitus

1. habitus

flower(s)

2. flower(s)

vegetative nucleus and sperm cells

3. vegetative nucleus and sperm cells

upper focus

4. upper focus

optical section

5. optical section

lower focus

6. lower focus

hydrated pollen grain

7. hydrated pollen grain

exine surface and apertures

8. exine surface and apertures

apertures

9. apertures

dry pollen grains

10. dry pollen grains

dry pollen grain

11. dry pollen grain

dry pollen grain

12. dry pollen grain

anther wall with Ubisch bodies

13. anther wall with Ubisch bodies

interapertural area of pollen wall

14. interapertural area of pollen wall

apertural area of pollen wall

15. apertural area of pollen wall

pollen wall at transition of aperture and interapertural area

16. pollen wall at transition of aperture and interapertural area

Picture legend

  1. habitus, photographer: Sam, S.
  2. flower(s), photographer: Sam, S.
  3. vegetative nucleus and sperm cells - fresh, unfixed, aceto-carmine, photographer: Sam, S.
  4. upper focus - fresh, acetolyzed, unstained, photographer: Sam, S.
  5. optical section - fresh, acetolyzed, unstained, photographer: Sam, S.
  6. lower focus - fresh, acetolyzed, unstained, photographer: Sam, S.
  7. hydrated pollen grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  8. exine surface and apertures - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  9. apertures - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  10. dry pollen grains - dry, sputter coated with gold, photographer: Sam, S.
  11. dry pollen grain - dry, sputter coated with gold, photographer: Sam, S.
  12. dry pollen grain - dry, sputter coated with gold, photographer: Sam, S.
  13. anther wall with Ubisch bodies - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  14. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
  15. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
  16. pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, lipid-test, photographer: Sam, S.

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:

Sam S. 2016. Atriplex sagittata. In: PalDat - A palynological database. https://www.paldat.org/pub/Atriplex_sagittata/301257;jsessionid=BE485F6DD2143C044BAE9692767861FD; accessed 2024-11-01

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