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PalDat - Palynological Database

an online publication on recent pollen

Cucurbita ficifolia

Taxonomy: Angiospermae, Cucurbitales, Cucurbitaceae, Cucurbita

Published: 2016-02-10

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): very large (>100 µm),  pollen class: porate,  polarity: -,  shape: spheroidal,  outline in polar view: circular,  shape (dry pollen): spheroidal,  outline in polar view (dry pollen): circular,  infoldings (dry pollen): not infolded,  aperture number: >6,  aperture type: porus,  aperture condition: porate, pantoporate,  aperture peculiarities: operculum, pantoaperturate

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: echinate, baculate,  TEMtectum: -,  infratectum: -,  foot layer: -,  endexine: -,  intine: -,  wall peculiarities: -

Miscellaneous

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

Author(s) of diagnosis: Halbritter, Heidemarie

Pictures

hydrated pollen grain

1. hydrated pollen grain

aperture

2. aperture

exine surface

3. exine surface

exine surface

4. exine surface

exine surface

5. exine surface

dry pollen grains

6. dry pollen grains

Picture legend

  1. hydrated pollen grain - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  2. aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  3. exine surface - 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. exine surface - 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.

Literature

  • Ciampolini F, Nepi M, Pacini E (1993) Tapetum development in Cucurbita pepo (Cucurbitaceae). Pl Syst Evol, Suppl 7: 13-22
  • Gubatz S, Wiermann R (1993) Studies on sporopollenin biosynthesis in Cucurbita maxima I: the substantial labeling of sporopollenin from Cucurbita maxima after application of [14C] Phenylalanine. Z Naturf 48c: 10-15
  • Mulcahy DL, Mulcahy GB, Robinson RW (1979) Evidence for postmeiotic genetic activity in pollen of Cucurbita species. J Heredity 70: 365-368
  • Nepi M, Ciampolini F, Pacini E (1995) Development of Cucurbita pepo pollen: ultrastructure and histochemistry of the sporoderm. Can J Bot 73: 1046-1057
  • Nepi M, Pacini E (1993) Pollination, pollen viability and pistil receptivity in Cucurbita pepo. Ann Bot 72: 527-536
  • Skilnyk HR, Lott JNA (1992) Mineral analyses of storage reserves of Cucurbita maxima and Cucurbita andreana pollen. Can J Bot 70: 491-495
  • Winsor JA, Stephenson AG (1995) Demographics of pollen tube growth in Cucurbita pepo. Can J Bot 73: 583-589

Copyright and Citation

Cite this publication as:

Halbritter H. 2016. Cucurbita ficifolia. In: PalDat - A palynological database. https://www.paldat.org/pub/Cucurbita_ficifolia/300429;jsessionid=8B6CDC9DF076E768487A163A4E36670E; accessed 2018-11-18

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