Ambrosia artemisiifolia
Taxonomy: Angiospermae, Asterales, Asteraceae, Ambrosia
Links: http://flora.nhm-wien.ac.at/Seiten-Arten/Ambrosia-artemisifolia.htm
Published: 2020-12-17
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): 16-20 µm, shortest polar axis in equatorial view (LM): 16-20 µm, longest polar axis in equatorial view (LM): 16-20 µm, shortest diameter in equatorial or polar view (LM): 16-20 µm, longest diameter in equatorial or polar view (LM): 16-20 µm, pollen class: colporate, polarity: isopolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): oblique, P/E-ratio (dry pollen): -, shape (dry pollen): spheroidal, outline in polar view (dry pollen): lobate, infoldings (dry pollen): aperture(s) sunken, aperture number: 3, aperture type: colporus, aperture condition: colporate, tricolporate, aperture peculiarities: brevicolporus
Ornamentation and Structure
LM ornamentation LM: echinate, nexine: present, sexine: present, SEM ornamentation SEM: echinate, perforate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: absent, endexine: lamellar-continuous, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: -, cell number: 3-celled, Ubisch bodies: absent
Annotations: the aperture seems to be porate as the the colpus is very short and almost not visible
Author(s) of diagnosis: Sam, Saskia; Halbritter, Heidemarie; Heigl, Helmut
Pictures
Picture legend
- habitus, photographer: Sam, S.
- inflorescence(s), photographer: Sam, S.
- 3-celled pollen - dry, unfixed & rehydrated (water), aceto-carmine, photographer: Sam, S.
- acetolyzed pollen, upper focus - dry, acetolyzed, unstained, photographer: Sam, S.
- acetolyzed pollen, optical section - dry, acetolyzed, unstained, photographer: Sam, S.
- acetolyzed pollen, lower focus - dry, acetolyzed, unstained, photographer: Sam, S.
- hydrated pollen - fresh, glycerine, unstained, photographer: Heigl, H.
- hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
- hydrated pollen - fresh, glycerine, ruthenium red, photographer: Heigl, H.
- hydrated pollen, polar view - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
- polar view - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- hydrated pollen, equatorial view - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
- hydrated pollen, equatorial view - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
- hydrated pollen, equatorial view - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
- aperture - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- exine surface - fresh, rehydrated (water) & critical point dried & sputter coated with gold, photographer: Halbritter, H.
- dry pollen grains - dry, sputter coated with gold, photographer: Halbritter, H.
- dry pollen - dry, sputter coated with gold, photographer: Sam, S.
- dry pollen - dry, sputter coated with gold, photographer: Sam, S.
- aperture - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
- exine surface - dry, rehydration (water) & critical point dried & sputter coated with gold, photographer: Sam, S.
- Ubisch bodies absent - dry, sputter coated with gold, photographer: Sam, S.
- cross section of pollen grain - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- pollen wall, aperture area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- pollen wall, aperture area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- pollen wall, interapertural area - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
Literature
- (1994) Exkursionsflora von Österreich : 1180
- (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., Halbritter H., Heigl H. 2020. Ambrosia artemisiifolia. In: PalDat - A palynological database. https://www.paldat.org/pub/Ambrosia_artemisiifolia/304617; accessed 2024-11-01