Uroglena volvox

Uroglena volvox Collected from a pond on the isle of Nordstrand (North Sea). The image was built up using several photomicrographic frames with manual stacking technique. The images were taken using Zeiss Universal with Canon EOS 70D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond on isle of Nordstrand (Schleswig-Holstein, Germany) Latitude: 54.49594138 Longitude: 8.80856752 Probe aus einem kleinen Teich am Hof Omlandia auf der Insel Nordstrand. Dieses Bild wurde mit Zeiss Universal mit Canon EOS 70D. Bild unter der Creative Commons Lizenz V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Uroglena volvox Scale bar indicates 25 µm. The specimen was gathered in a pond in the forest of Altenholz-Stift near Kiel. Sampling date 6/2017. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioskop with Olympus OM-D M5 MKII. Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond in the forest of Altenholz-Stift (Schleswig-Holstein, Germany) Latitude: 54.384913 Longitude: 10.125691 Der Messbalken markiert eine Länge von 25 µm. Die Probe wurde in einem Waldteich bei Altenholz-Stift (nahe Kiel) gesammelt. Datum der Aufsammlung: 6/2017. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus OM-D M5 MKII. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Uroglena volvox Collected from a pond on the isle of Nordstrand (North Sea). The image was built up using several photomicrographic frames with manual stacking technique. The images were taken using Zeiss Universal with Canon EOS 70D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond on isle of Nordstrand (Schleswig-Holstein, Germany) Latitude: 54.49594138 Longitude: 8.80856752 Probe aus einem kleinen Teich am Hof Omlandia auf der Insel Nordstrand. Dieses Bild wurde mit Zeiss Universal mit Canon EOS 70D. Bild unter der Creative Commons Lizenz V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Uroglena volvox The specimen was gathered in a pond in the forest of Altenholz-Stift near Kiel. Sampling date 6/2017. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioskop with Olympus OM-D M5 MKII. Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond in the forest of Altenholz-Stift (Schleswig-Holstein, Germany) Latitude: 54.384913 Longitude: 10.125691 Die Probe wurde in einem Waldteich bei Altenholz-Stift (nahe Kiel) gesammelt. Datum der Aufsammlung: 6/2017. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus OM-D M5 MKII. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Uroglena volvox Collected from a pond on the isle of Nordstrand (North Sea). The image was built up using several photomicrographic frames with manual stacking technique. The images were taken using Zeiss Universal with Canon EOS 70D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond on isle of Nordstrand (Schleswig-Holstein, Germany) Latitude: 54.49594138 Longitude: 8.80856752 Probe aus einem kleinen Teich am Hof Omlandia auf der Insel Nordstrand. Dieses Bild wurde mit Zeiss Universal mit Canon EOS 70D. Bild unter der Creative Commons Lizenz V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Uroglena volvox Scale bar indicates 25 µm. The specimen was gathered in a pond in the forest of Altenholz-Stift near Kiel. Sampling date 12/2016. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioskop with Olympus OM-D M5 MKII. Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond in the forest of Altenholz-Stift (Schleswig-Holstein, Germany) Latitude: 54.384913 Longitude: 10.125691 Der Messbalken markiert eine Länge von 25 µm. Die Probe wurde in einem Waldteich bei Altenholz-Stift (nahe Kiel) im Dezember 2016 gesammelt. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus OM-D M5 MKII. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Uroglena volvox Collected from a pond on the isle of Nordstrand (North Sea). The image was built up using several photomicrographic frames with manual stacking technique. The images were taken using Zeiss Universal with Canon EOS 70D.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond on isle of Nordstrand (Schleswig-Holstein, Germany) Latitude: 54.49594138 Longitude: 8.80856752 Probe aus einem kleinen Teich am Hof Omlandia auf der Insel Nordstrand. Dieses Bild wurde mit Zeiss Universal mit Canon EOS 70D. Bild unter der Creative Commons Lizenz V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.

Portrait of the colonial chrysophyte, Uroglena volvox (Ehrenberg, 1835). colonies free-swimming, spherical, ellipsoidal or oblong, up to several 100 (rarely >1000)μm in diameter; cells radially arranged in a single layer at the periphery of a gelatinous matrix;the friable colonies are easily disrupted by the pressure of the coverslip. The interior of the matrix is fairly homogeneous or containing a system of fine, radiating and branched stalks to which the cells are attached by their pointed posterior ends; individual cells Ochromonas-like, with 2 flagella of unequal length; chloroplasts 1-2, laminate to discoid, at least in one species containing a pyrenoid; eyespot usally 1 (rarely 2 or lacking); contractile vacuoles 1-3; numerous muciferous bodies located at the cell periphery; nutrition phototrophic and phagotrophic; cell division longitudinal; colony reproduction by constriction into two daughter colonies or by fragmentation; stomatocysts frequently observed, their ornamentation used for species identification; some species of common occurrence in the plankton of lakes and ponds, sometimes bloom-forming, one marine species. Collected from a freshwater dredge pond near Idaho City, Idaho June 2005. Brightfield.

Portrait of the colonial chrysophyte, Uroglena volvox (Ehrenberg, 1835). colonies free-swimming, spherical, ellipsoidal or oblong, up to several 100 (rarely >1000)μm in diameter; cells radially arranged in a single layer at the periphery of a gelatinous matrix;the friable colonies are easily disrupted by the pressure of the coverslip. The interior of the matrix is fairly homogeneous or containing a system of fine, radiating and branched stalks to which the cells are attached by their pointed posterior ends (visible here); individual cells Ochromonas-like, with 2 flagella of unequal length; chloroplasts 1-2, laminate to discoid, at least in one species containing a pyrenoid; eyespot usally 1 (rarely 2 or lacking); contractile vacuoles 1-3; numerous muciferous bodies located at the cell periphery; nutrition phototrophic and phagotrophic; cell division longitudinal; colony reproduction by constriction into two daughter colonies or by fragmentation; stomatocysts frequently observed, their ornamentation used for species identification; some species of common occurrence in the plankton of lakes and ponds, sometimes bloom-forming, one marine species. Collected from a freshwater dredge pond near Idaho City, Idaho June 2005. Phase contrast.

Portrait of the colonial chrysophyte, Uroglena volvox (Ehrenberg, 1835). colonies free-swimming, spherical, ellipsoidal or oblong, up to several 100 (rarely >1000)μm in diameter; cells radially arranged in a single layer at the periphery of a gelatinous matrix;the friable colonies are easily disrupted by the pressure of a coverslip. The interior of the matrix is fairly homogeneous or containing a system of fine, radiating and branched stalks to which the cells are attached by their pointed posterior ends (visible here); individual cells Ochromonas-like, with 2 flagella of unequal length; chloroplasts 1-2, laminate to discoid, at least in one species containing a pyrenoid; eyespot usally 1 (rarely 2 or lacking); contractile vacuoles 1-3; numerous muciferous bodies located at the cell periphery; nutrition phototrophic and phagotrophic; cell division longitudinal; colony reproduction by constriction into two daughter colonies or by fragmentation; stomatocysts frequently observed, their ornamentation used for species identification; some species of common occurrence in the plankton of lakes and ponds, sometimes bloom-forming, one marine species. Collected from a freshwater dredge pond near Idaho City, Idaho June 2005.DIC.

Detail view of cells of the colonial chrysophyte, Uroglena volvox (Ehrenberg, 1835). colonies free-swimming, spherical, ellipsoidal or oblong, up to several 100 (rarely >1000)μm in diameter; cells radially arranged in a single layer at the periphery of a gelatinous matrix;the friable colonies are easily disrupted by the pressure of a coverslip. The interior of the matrix is fairly homogeneous or containing a system of fine, radiating and branched stalks to which the cells are attached by their pointed posterior ends (visible here); individual cells Ochromonas-like, with 2 flagella of unequal length; chloroplasts 1-2, laminate to discoid, at least in one species containing a pyrenoid; eyespot usally 1 as in these cells (rarely 2 or lacking); contractile vacuoles 1-3; numerous muciferous bodies located at the cell periphery;a chrysolaminaran (glucopyranoside storgae polymer) vacuole is visible in the osterior of the cell to the viewer's right; nutrition phototrophic and phagotrophic; cell division longitudinal; colony reproduction by constriction into two daughter colonies or by fragmentation; stomatocysts frequently observed, their ornamentation used for species identification; some species of common occurrence in the plankton of lakes and ponds, sometimes bloom-forming, one marine species. Collected from a freshwater dredge pond near Idaho City, Idaho June 2005.DIC.