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PalDat - Palynological Database

an online publication on recent pollen

Acer negundo

Taxonomy: Angiospermae, Sapindales, Sapindaceae, Acer

Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Acer-negundo.htm

Published: 2020-11-30

Pollen Description

Shape, Size and Aperture

pollen unit: monad,  dispersal unit and peculiarities: monad,  size (pollen unit): medium-sized (26-50 µm),  size of hydrated pollen (LM): 31-35 µm,  shortest polar axis in equatorial view (LM): 21-25 µm,  longest polar axis in equatorial view (LM): 26-30 µm,  shortest diameter in equatorial or polar view (LM): 21-25 µm,  longest diameter in equatorial or polar view (LM): 26-30 µm,  pollen class: colpate,  polarity: isopolar,  P/E-ratio: -,  shape: spheroidal,  outline in polar view: circular,  dominant orientation (LM): oblique,  P/E-ratio (dry pollen): prolate,  shape (dry pollen): -,  outline in polar view (dry pollen): lobate,  infoldings (dry pollen): aperture(s) sunken,  aperture number: 3,  aperture type: colpus,  aperture condition: colpate, tricolpate,  aperture peculiarities: -

Ornamentation and Structure

LM  ornamentation LM: rugulate, striate,  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: absent,  reserves in cytoplasm: starch, lipids,  cell number: 2-celled,  Ubisch bodies: -

Author(s) of diagnosis: Sam, Saskia; Weber, Martina; Auer, Waltraud

Pictures

flower(s)

1. flower(s)

pollen grain with generative cell

2. pollen grain with generative cell

upper focus

3. upper focus

optical section

4. optical section

lower focus

5. lower focus

hydrated pollen

6. hydrated pollen

hydrated pollen

7. hydrated pollen

hydrated pollen

8. hydrated pollen

polar view

9. polar view

equatorial view

10. equatorial view

detail of aperture

11. detail of aperture

exine surface

12. exine surface

polar area

13. polar area

dry pollen grains

14. dry pollen grains

polar view (dry pollen grain)

15. polar view (dry pollen grain)

dry pollen grain in equatorial view

16. dry pollen grain in equatorial view

pollen grain in cross section

17. pollen grain in cross section

interapertural area of pollen wall

18. interapertural area of pollen wall

interapertural area of pollen wall

19. interapertural area of pollen wall

apertural area of pollen wall

20. apertural area of pollen wall

pollen wall at transition of aperture and interapertural area

21. pollen wall at transition of aperture and interapertural area

vegetative nucleus (right) and generative cell (left)

22. vegetative nucleus (right) and generative cell (left)

Picture legend

  1. flower(s), photographer: Sam, S.
  2. pollen grain with generative cell - fresh, unfixed, aceto-carmine, photographer: Sam, S.
  3. upper focus - fresh, acetolyzed, unstained, photographer: Sam, S.
  4. optical section - fresh, acetolyzed, unstained, photographer: Sam, S.
  5. lower focus - fresh, acetolyzed, unstained, photographer: Sam, S.
  6. hydrated pollen - fresh, glycerine, unstained, photographer: Auer, W.
  7. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  8. hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
  9. polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  10. equatorial view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  11. detail of aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  12. exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  13. polar area - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
  14. dry pollen grains - dry, sputter coated with gold, photographer: Sam, S.
  15. polar view (dry pollen grain) - dry, sputter coated with gold, photographer: Sam, S.
  16. dry pollen grain in equatorial view - dry, sputter coated with gold, photographer: Sam, S.
  17. pollen grain in cross section - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
  18. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
  19. interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, lipid-test, photographer: Sam, S.
  20. apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
  21. pollen wall at transition of aperture and interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
  22. vegetative nucleus (right) and generative cell (left) - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.

Literature

  • Arreguin-Sanchez ML, Quiroz-Garcia DL, Palacios-Chavez R (1990) Morfologia de los granos de polen de las familias Aceraceae, Aquifoliaceae, Geraniaceae, Resedaceae, Sabiaceae y Saxifragaceae del Valle de Mexico. Acta Bot Mex 10: 3-21
  • Biesboer DD (1976) Pollen morphology of the Aceraceae. Grana 15: 19-27
  • Brizicky GK (1963) The genera of Sapindales in the southeastern United States. J Arn Arb 44: 462-501
  • Candau P (1987) Aceraceae, Alismataceae, Amaranthaceae, Apiaceae (Umbelliferae), Araceae, Araliaceae, Cactaceae, Caryophyllaceae, Chenopodiaceae, Droseraceae, Fumariaceae, Lentibulariaceae, Linaceae, Lythraceae, Molluginaceae, Moraceae, Myrtaceae, Oleaceae, Papaveraceae,
  • Clarke GCS, Jones MR (1978) Aceraceae. Rev Palaeobot Palynol 26: 181-193
  • De J (1976) Flowering and sex expression in Acer. Meded Landbouwhoogeschool 76: 170
  • Helmich DE (1963) Pollen morphology in the maples (Acer L.). Pap Michicgan Acad Sci Arts lett 48: 151-162
  • Hesse M (1978) Ultrastruktur und Verteilung des Pollenkitts in der insekten- und windblütigen Gattung Acer (Aceraceae). Pl Syst Evol 131: 277-289
  • Jacobs CA, Lersten NR (1994) Microsporogenesis and endothecial wall patterns in black maple (Acer saccharum subsp. nigrum, Aceraceae). Bull Torrey Bot Club 121: 180-187
  • Peck CJ, Lersten NR (1991) Gynoecial ontogeny and morphology, and pollen tube pathway in black maple Acer saccharum ssp. nigrum (Aceraceae). Amer J Bot 78: 247-259
  • Philbrick CT, Boyle AL (1981) The pollen morphology of the native New England species of the genus Acer (Aceraceae). Rhodora 83: 237-258
  • Pozhidaev AE (1992) The pollen of the genus Acer (Aceraceae) and isomorphism of deviating forms of pollen in dicotyledons. Bot Journ USSR 77: 84-88
  • Pozhidaev AE (1993) Polymorphism of pollen in the genus Acer (Aceraceae). Isomorphism of deviate forms of angiosperm pollen. Grana 32: 79-85
  • Svobodová D (1972) Blütenökologie und Kultivaren des Spitzahorns (Acer platanoides L.). Acta Musei Silesiae Series Dendrologia 2: 163-170
  • Svobodová D (1976) Der Blühverlauf der weiblichen und männlichen Blüten einiger Arten der Gattung Acer L. Acta Musei Silesiae Series Dendrologia 25: 119-128
  • Svobodová D (1977) Morphologische Veränderlichkeit und die Blütenökologie der Gattung Acer L. Studie CSAV, Academia Praha : 131
  • Ueno J (1963) The stratigraphical structure of the pollen walls of Dicotyledoneae - I: Ranales and Amentiferae. Acta Phytotax Geobot 19: 137-141
  • Wodehouse RP (1945) Hayfever plants. Waltham Mass, USA
  • Adler W, Oswald K, Fischer R. (1994) Exkursionsflora von Österreich : 1180
  • 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:

Sam S., Weber M., Auer W. 2020. Acer negundo. In: PalDat - A palynological database. https://www.paldat.org/pub/Acer_negundo/304178; accessed 2024-11-10

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