Tiny Organisms in Aquatic Habitats

Desmids –
Archaeplastida (Part)

Observations on Closterium striolatum

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

Closterium striolatum Ehrenberg ex Ralfs 1848

Most likely ID: n.a.

Basionym: n.a.

Add’l Synonyms: Closterium spirale Corda 1835
                               Closterium striolatum var. elongatum Rabenhorst 1868
                               Closterium subdirectum West 1889
                               Closterium striolatum var. orthonotum J.Roy 1890
                               Arthrodia striolata (Ralfs) Kuntze 1891
                               Arthrodia spiralis Corda ex Kuntze 1891
                               Arthrodia subdirecta (West) Kuntze 1891
                               Closterium striolatum var. subdirectum (West) Willi Krieger 1935

Sampling date 10/2019. Scale bars indicate 50 µm.

Two images.

 

First:Synoptic representation of the cell surface.
Second:Optical cross-section through ribs of the stellate chloroplasts, nucleus and terminal vacuoles.

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: Bog Waasenmoos Pass Thurn near Mittersil (Tyrol, Austria) 
Latitude: 47.30234117     Longitude: 12.41751194

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

Sampling date 10/2019. Scale bars indicate 100 µm.

Two images.

First:Synoptic representation of the stellate chloroplasts.
Second:Optical cross-section through ribs of the stellate chloroplasts, nucleus and terminal vacuoles.

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: Bog Waasenmoos Pass Thurn near Mittersil (Tyrol, Austria) 
Latitude: 47.30234117     Longitude: 12.41751194

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

Closterium striolatum

Sampling date 04/2007. Scale bars indicate 50 µm.

Straight form of Closterium striolatum, also called Cl. striolatum var. rectum by some authors.

Place name: Bogs near Salzburg (Austria) 
Latitude: 48.068516     Longitude: 12.954134

Microscope Zeiss Universal, camera Olympus C7070WZ. DOF images.

Sampling date 04/2007. Scale bars indicate 25 µm.

Two 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: Bogs near Salzburg (Austria) 
Latitude: 48.068516     Longitude: 12.954134

Microscope Zeiss Universal, camera Olympus C7070WZ. DOF images.

Closterium spec.

Sampling date 04/2007. Scale bars indicate 100 µm.

Chloroplasts with stellate shape in cross-section. The inset shows the delicate surface texture of cell wall surface in high resolution (Planapochromat 63/1.4). The usually seen longitudinal stripes are not yet developed.

First cell developed from a cystozygote. In species with girdle bands, first cells are characterized by the fact that they are without them!

Place name: Bogs near Salzburg (Austria) 
Latitude: 48.068516     Longitude: 12.954134

Microscope Zeiss Universal, camera Olympus C7070WZ. DOF images.

Sampling date 06/2023. Scale bars indicate  50 µm.

Four images.

First:Synoptic representation of the cell surface showing girdle bands.
Second:First optical cross-section showing the structure of the chloroplasts.
Third and fourh:Pyrenoids.

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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