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Image of Arcella hemisphaerica

Image of Arcella hemisphaerica

Description:

Arcella hemisphaerica Arcella hemisphaerica f. undulata. This testate amoeba constructs a proteinaceous shell with numerous tiny alveoli reinforcing the test. The picture shows the test from dorsal and ventral. On the ventral side, the aperture, two contractile vacuoles and one of two nuclei with centric nucleolus are visible. This picture was built up using 25 DIC frames with manual stacking technique. The scale bar indicates 25 µm. Collected from bottom sediments of a rain storage reservoir in Kiel (Schleswig-Holstein, Germany). Images were taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Pond Demühlen, rain storage reservoir in Kiel-Russee (Schleswig-Holstein, Germany) Latitude: 54.304095 Longitude: 10.086073 Arcella hemisphaerica f. undulata. Diese Schalenamöbe bildet eine proteinöse Schale mit zahlreichen kleinen, die Schale verstärkenden Hohlräumen (Areolen). Das Bild zeigt Schale von dorsal und ventral. Auf der Ventralseite sind die Öffnung (Pseudostom), zwei kontraktile Vakuolen und einer der beiden Kerne mit mittigem Nucleolus sichtbar. Tiefenschärfe durch Multiebenenabbildung aus 25 Bildebenen, manuell gestapelt. Der Messbalken zeigt 25 µm an. Aus Bodensedimenten eines Regenrückhaltebeckens in Kiel. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070. 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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Wolfgang Bettighofer
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86a995c91703f905a45669f8211362ae