Desmids –
Archaeplastida (Part)

Observations on Netrium oblongum

Position in the EOL taxonomic tree. Please click on the tree view below to access EOL (Encyclopedia of Life).

Netrium oblongum (De Bary) Lütkemüller 1902

Most likely ID: n.a.

Basionym: Penium oblongum De Bary 1858

Add’l Synonyms: n.a.

Sampling date 06/2023. Scale bars indicate 25 µm.

Two images.

First:	Synoptic reperesentation of the cell surface showing the notched lamellae of the chloroplast.
Second:	The plane of focus of the optical cross-section is just below the upper, horizontal lamellae of the chloroplast. You can see the second horizontal lamellae plane; the dark green curved line along the cell axis marks vertical chloroplast lamellae. The nodular thickenings of the six purenoid bodies become visible.
Third:	Optical cross-section through the middle plane of the cell. It shows the middle lamellar plane of the chloroplast, six pyrenoids and the cell nucleus as a pale, slightly structured disk in the center of the cell. In the pyrenoids, the cell produces the reserve substance starch, which is deposited as a shell around it. This starch shell is clearly visible.

Please click on < or > on the image edges or on the dots at the bottom edge of the images to browse through the slides!

Place name: Wetland Lauchseemoor, Fieberbrunn (Tyrol, Austria)
Latitude: 47.46954439 Longitude: 12.53826499

Microscope Zeiss Axioplan, camera Olympus OM-D M5 MKII. DOF images.

© Wolfgang Bettighofer,
images under Creative Commons License V 3.0 (CC BY-NC-SA).
For permission to use of (high resolution) images please contact postmaster@protisten.de.

Protisten.de

Observations on Netrium oblongum

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