Elymus repens
Taxonomy: Angiospermae, Poales, Poaceae, Elymus
Published: 2021-03-03
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): 36-40 µm, shortest polar axis in equatorial view (LM): -, longest polar axis in equatorial view (LM): -, shortest diameter in equatorial or polar view (LM): 31-35 µm, longest diameter in equatorial or polar view (LM): 31-35 µm, pollen class: ulcerate, polarity: heteropolar, P/E-ratio: -, shape: spheroidal, outline in polar view: circular, dominant orientation (LM): polar, P/E-ratio (dry pollen): -, shape (dry pollen): irregular, outline in polar view (dry pollen): irregular, infoldings (dry pollen): irregularly infolded, aperture number: 1, aperture type: ulcus, aperture condition: ulcerate, aperture peculiarities: operculum, annulus
Ornamentation and Structure
LM ornamentation LM: psilate, scabrate, nexine: -, sexine: -, SEM ornamentation SEM: microechinate, suprasculpture SEM: -, TEM tectum: eutectate, infratectum: columellate, foot layer: continuous, endexine: absent, intine: monolayered, wall peculiarities: -, supratectal element: -
Miscellaneous
pollen coatings: absent, reserves in cytoplasm: starch, polysaccharide vesicles, cell number: 3-celled, Ubisch bodies: present
Author(s) of diagnosis: Sam, Saskia; Auer, Waltraud
Pictures
1. inflorescence of Elymus repens
2. flowers of Elymus repens
3. upper focus
4. optical section
5. lower focus
6. pollen grain with vegetative cell and two sperm cells
7. hydrated pollen
8. hydrated pollen
9. hydrated pollen
10. equatorial view
11. aperture
12. exine surface
13. dry pollen grains
14. anther wall with Ubisch bodies
15. interapertural area of pollen wall
16. apertural area of pollen wall
17. two sperm cells
18. vegetative nucleus
Picture legend
- inflorescence of Elymus repens, photographer: Sam, S.
- flowers of Elymus repens, photographer: Sam, S.
- upper focus - fresh, acetolyzed, unstained, photographer: Sam, S.
- optical section - fresh, acetolyzed, unstained, photographer: Sam, S.
- lower focus - fresh, acetolyzed, unstained, photographer: Sam, S.
- pollen grain with vegetative cell and two sperm cells - fresh, unfixed, aceto-carmine, photographer: Sam, S.
- hydrated pollen - fresh, glycerine, unstained, photographer: Auer, W.
- hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
- hydrated pollen - fresh, glycerine, ruthenium red, photographer: Auer, W.
- equatorial view - fresh, DMP & critical point dried, photographer: Sam, S.
- aperture - fresh, DMP & critical point dried, photographer: Sam, S.
- exine surface - fresh, DMP & critical point dried, photographer: Sam, S.
- dry pollen grains - dry, sputter coated with gold, photographer: Sam, S.
- anther wall with Ubisch bodies - fresh, DMP & critical point dried, photographer: Sam, S.
- interapertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- apertural area of pollen wall - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- two sperm cells - fresh, glutaraldehyde & osmium & potassium ferrocyanide, modified Thiéry-test, photographer: Sam, S.
- vegetative nucleus - 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., Auer W. 2021. Elymus repens. In: PalDat - A palynological database. https://www.paldat.org/pub/Elymus_repens/305523;jsessionid=5CC58DAA05313CAC820B85E319038854; accessed 2024-04-25