Diatoms – SAR-Stramenopiles (Bacillariophyta)

Observations on Mediopyxis helysia

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

Mediopyxis helysia Kühn, Hargreaves & Halliger 2006

Most likely ID: n.a.

Basionym: n.a.

Add’l Synonyms: n.a.

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Sampling date 04/2011. Scale bars indicate 100 µm (1), 50 µm (2-4).

Four images.

First and second:	The image shows chloroplasts, small sparkling droplets of storage matter, and the fine tubes of the labiate processes (rimoportulae), which provide the linking in the middle of the cells.
Third:	After several minutes of observation chloroplasts are transported to the cell center, maybe to save the nucleus and most of the chloroplasts against harmful amounts of UV radiation.
Fourth:	The image shows chloroplasts and some nuclei.

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: North Sea around Heligoland
Latitude: 54.186311 Longitude: 7.895034

Microscope Zeiss Universal, camera Olympus C7070WZ. DOF images.

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Scale bars indicate 50 µm (1), 25 µm (2, 3).

Three images.

First:	Overview of the cell chain.
Second and third:	The close-ups show labiate processes (rimoportulae), which provide the linking in the middle of the cells, chloroplasts, sparkling droplets of storage substance and the nuclei with central hyalin nucleolus and the granulated karyoplasma around.

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: North Sea around Heligoland
Latitude: 54.186311 Longitude: 7.895034

Microscope Zeiss Universal, camera Olympus C7070WZ. DOF images.

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Sampling date 04/2017. Scale bars indicate 100 µm (1, 2), 50 µm (3, 4), 25 µm (5).

Five images.

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: North Sea around Heligoland
Latitude: 54.186311 Longitude: 7.895034

Microscope Zeiss Universal, camera Olympus C7070WZ. 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 Mediopyxis helysia

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