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PalDat - Palynological Database

an online publication on recent pollen

Apium nodiflorum

Taxonomy: Spermatophyta, Araliales, Apiaceae, Apium

Published: 2005-06-01

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: -,  polarity: isopolar,  P/E-ratio: prolate,  shape: -,  outline in polar view: circular,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): -,  outline in polar view (dry pollen): -,  infoldings (dry pollen): -,  aperture number: 3,  aperture type: colporus,  aperture condition: colporate,  aperture peculiarities: -

Ornamentation and Structure

LM  ornamentation LM: -,  nexine: -,  sexine: -,  SEM  ornamentation SEM: rugulate, perforate,  suprasculpture SEM: -,  TEM  tectum: eutectate,  infratectum: columellate,  foot layer: continuous,  endexine: compact-continuous,  intine: monolayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

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

Annotations: ornamentation rugulate to rugulate-striate

Author(s) of diagnosis: Weber, M.

Pictures

equatorial view

1. equatorial view

pollen grain with vegetative nucleus (asterisk) and sperm cells

2. pollen grain with vegetative nucleus (asterisk) and sperm cells

pollen wall

3. pollen wall

Picture legend

  1. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Weber, M.
  2. pollen grain with vegetative nucleus (asterisk) and sperm cells - fresh, glutaraldehyde & potassium ferrocyanide, Thiéry-test, photographer: Weber, M.
  3. pollen wall - fresh, glutaraldehyde & potassium ferrocyanide, Thiéry-test, photographer: Weber, M.

Literature

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  • Weber M (1990) The formation of pollenkitt in Apium nodiflorum (Apiaceae). Ann Bot 70: 573-577
  • Weber M (1992) Nature and distribution of the exine-held material in mature pollen grains of Apium nodiflorum L. (Apiaceae). Grana 31: 17-24
  • Weber M (1988) Short communication. Unusual sperm cells in Apiaceae. Pl Syst Evol 159: 273-276
  • Weber M (1989) Ultrastructural changes in mature pollen grains of Apium nodiflorum L. (Apiaceae), with special reference to the endoplasmic reticulum. Protoplasma 152: 69-76
  • 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
  • Xi YZ, Sun XJ (1983) Pollen morphology of Umbelliferae in China and its evolution. Bot Res China 12: 57-84, pl I-X

Copyright and Citation

Cite this publication as:

Weber M. 2005. Apium nodiflorum. In: PalDat - A palynological database. https://pc8.botanik.univie.ac.at/pub/Apium_nodiflorum/103516;jsessionid=18DCA1C5E73DE4626BDF0B20DDCD4D14; accessed 2025-01-25

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