Desmidiales and
Zygnematales –
Archaeplastida

Observations on Netrium oblongum

Protisten / Protisten.de – created by Wolfgang Bettighofer / Algae green-colored (2: Desmids): other Zygnematophyceae / Zygnematales / Zygnemataceae / 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 focal plane of the optical cross-section lies just below the upper, horizontal lamellae of the chloroplast. The second horizontal lamella level is visible; the dark green, curved line along the cell axis marks the vertical chloroplast lamellae. The nodular thickenings of the six pyrenoid 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.

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Observations on Netrium oblongum

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