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PalDat - Palynological Database

an online publication on recent pollen

Aechmea comata

Taxonomy: Angiospermae, Poales, Bromeliaceae, Aechmea

Published: 2017-03-20

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  pollen class: porate,  polarity: -,  shape: oblate,  outline in polar view: elliptic,  shape (dry pollen): polygonal,  outline in polar view (dry pollen): irregular,  infoldings (dry pollen): irregularly infolded,  aperture number: 2,  aperture type: porus,  aperture condition: porate, diporate,  aperture peculiarities: aperture membrane smooth

Ornamentation and Structure

LM  ornamentation LM: -,  nexine: -,  sexine: -,  SEM  ornamentation SEM: reticulate,  TEM  tectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -

Miscellaneous

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

Annotations

pollen grains heteropolar or isopolar; existence of Ubisch bodies questionable

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

hydrated pollen

1. hydrated pollen

hydrated pollen

2. hydrated pollen

equatorial view

3. equatorial view

aperture

4. aperture

exine surface

5. exine surface

dry pollen

6. dry pollen

locule wall

7. locule wall

Picture legend

  1. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. hydrated pollen - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. equatorial view - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. aperture - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. exine surface - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. dry pollen - dry, sputter coated with gold, photographer: Halbritter, H.
  7. locule wall - dry, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.

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:

HALBRITTER H., Aechmea comata. In: PalDat (2017-03-20) - a palynological database. Published on the Internet https://www.paldat.org/pub/Aechmea_comata/303020;jsessionid=B893FECF76A58B1A499754950BB1D88A [accessed 2017-09-25]