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PalDat - Palynological Database

an online publication on recent pollen

Galium odoratum

Taxonomy: Angiospermae, Gentianales, Rubiaceae, Galium

Published: 2016-12-06

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): small (10-25 µm),  pollen class: colpate,  polarity: isopolar,  shape: oblate,  outline in polar view: circular,  shape (dry pollen): prolate,  outline in polar view (dry pollen): circular,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 6,  aperture type: colpus,  aperture condition: colpate, hexacolpate, stephanocolpate,  aperture peculiarities: aperture membrane ornamented, stephanoaperturate

Ornamentation and Structure

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

Miscellaneous

pollen coatings: pollenkitt,  reserves in cytoplasm: starch, polysaccharide vesicles,  cell number: 3-celled,  Ubisch bodies: absent

Annotations

aperture number 6 - 8

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

Pictures

habitus

1. habitus

flower(s)

2. flower(s)

hydrated pollen grains

3. hydrated pollen grains

polar view (oblique)

4. polar view (oblique)

equatorial view

5. equatorial view

aperure

6. aperure

exine surface

7. exine surface

detail of aperture

8. detail of aperture

polar area

9. polar area

dry pollen grains

10. dry pollen grains

total view of pollen grain; note apertural intine thickenings

11. total view of pollen grain; note apertural intine thickenings

pollen wall

12. pollen wall

vegetative nucleus (asterisk) and 2 sperm cells

13. vegetative nucleus (asterisk) and 2 sperm cells

Picture legend

  1. habitus, photographer: Weber, M.
  2. flower(s), photographer: Weber, M.
  3. hydrated pollen grains - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. polar view (oblique) - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  5. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  6. aperure - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  7. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  8. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  9. polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  10. dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
  11. total view of pollen grain; note apertural intine thickenings - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  12. pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, uranyl acetate & lead citrate, photographer: Weber, M.
  13. vegetative nucleus (asterisk) and 2 sperm cells - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.

Literature

  • Puff C (1975) Morphologie, Biologie und Abgrenzung von Galium L. sect. Aparinoides (Jord.) Gren. (Rubiaceae). Beitr Biol Pflanzen 51: 17-40
  • Weber M (1988) Formation of sperm cells in Galium mollugo (Rubiaceae), Trichodiadema setuliferum (Aizoaceae), and Avena sativa L. (Poaceae). Pl Syst Evol 161: 53-64
  • 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. 2016. Galium odoratum. In: PalDat - A palynological database. https://www.paldat.org/pub/Galium_odoratum/302706;jsessionid=7AF8FDC2A5E1AD1B227CFC16CB973F80; accessed 2018-11-13

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