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an online publication on recent pollen

Tulipa urumiensis

Taxonomy: Angiospermae, Liliales, Liliaceae, Tulipa

Published: 2016-11-29

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): large (51-100 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: sulcate,  polarity: heteropolar,  P/E-ratio: oblate,  shape: -,  outline in polar view: elliptic,  dominant orientation (LM): -,  P/E-ratio (dry pollen): -,  shape (dry pollen): boat-shaped,  outline in polar view (dry pollen): -,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 1,  aperture type: sulcus,  aperture condition: sulcate,  aperture peculiarities: operculum

Ornamentation and Structure

LMornamentation LM: -,  nexine: -,  sexine: -,  SEMornamentation SEM: microreticulate, striate,  suprasculpture SEM: -,  TEMtectum: eutectate,  infratectum: columellate,  foot layer: perforate,  endexine: absent,  intine: bilayered,  wall peculiarities: -,  supratectal element: -

Miscellaneous

pollen coatings: pollenkitt,  reserves in cytoplasm: starch,  cell number: 2-celled,  Ubisch bodies: present

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

Pictures

flower(s)

1. flower(s)

frontal view of open flower with open anthers and triangular ovary

2. frontal view of open flower with open anthers and triangular ovary

exine surface

3. exine surface

dry pollen grain in equatorial view

4. dry pollen grain in equatorial view

pollen wall close to aperture with bi-layered intine

5. pollen wall close to aperture with bi-layered intine

pollen wall with pollenkitt

6. pollen wall with pollenkitt

Picture legend

  1. flower(s), photographer: Weber, M.
  2. frontal view of open flower with open anthers and triangular ovary, photographer: Weber, M.
  3. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
  4. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Halbritter, H.
  5. pollen wall close to aperture with bi-layered intine - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.
  6. pollen wall with pollenkitt - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Weber, M.

Literature

  • Dahse HM (1988) Beiträge zur Pollenmorphologie der Gattung Tulipa. Wiss Z Friedrich-Schiller-Univ Jena, Math-Naturwiss Reihe 37: 177-183
  • Gubatz S, Wiermann R (1992) Studies on sporopollenin biosynthesis in Tulipa anthers. III. Incorporation of specifically labeled 14C-phenylalanine in comparison to other precursors. Bot Acta 105: 407-413
  • Kosenko VN (1999) Contributions to the pollen morphology and taxonomy of the Liliaceae. Grana 38: 20-30
  • Rittscher M, Wiermann R (1983) Occurrence of phenylalanine ammonia-lyase (PAL) in isolated tapetum cells of Tulipa anthers. Protoplasma 118: 219-224
  • Rittscher M, Wiermann R (1988) Studies on sporopollenin biosynthesis in Tulipa anthers. I. The development of an appropriate application method for radiolabeled precursors. Sex Pl Reprod 1: 125-131
  • Rittscher M, Wiermann R (1988) Studies on sporopollenin biosynthesis in Tulipa anthers. II. Incorporation of precursors and degradation of the radiolabeled polymer. Sex Pl Reprod 1: 132-139
  • Strack D, Sachs G, Wiermann R (1981) Pollen of Tulipa cv. Apeldoorn as an accumulation site of flavonol di- and triglycosides. Z Pflanzenphysiol 103: 291-296
  • 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:

Weber M., Halbritter H. 2016. Tulipa urumiensis. In: PalDat - A palynological database. https://www.paldat.org/pub/Tulipa_urumiensis/302346;jsessionid=6B12D638164BCB10E6C55A82BEB53CFE; accessed 2024-04-28

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