Scenedesmus spp., colonial green alga, SEM
Bildnummer 12298548
| Coloured scanning electron micrograph (SEM) of Scenedesmus spp., flat colony of 4 alga cells. Scenedesmus, a green alga from the Chlorophyceae group, is a small, non-motile, colonial green alga consisting of cells aligned in a flat plate. The colonies most often have two or four cells, but may have 8, 16, or 32 cells. The cells are usually cylindrical but may be more lunate (crescent-shaped), ovoid, or fusiform (wide in the middle and tapering at both ends). Often the end cells each have two long spines protruding from their outer corners (example: Scenedesmus quadricauda). Other cells may have additional spines or chitinous bristles. Each cell contains a single parietal, plate-like chloroplast with a pyrenoid (the site of CO2 fixation). The cell walls may be covered in bumps or reticulations. Scenedesmus is a photosynthetic planktonic organism that is important in the aquatic food chain. Magnification: x1, 200 when shortest axis printed at 25 | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / DENNIS KUNKEL MICROSCOPY |
| Bildgröße: | 3483 px × 2613 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: | - |
Preise für dieses Bild ab 15 €
Universitäten & Organisationen
(Informationsmaterial Digital, Informationsmaterial Print, Lehrmaterial Digital etc.)
ab 15 €
Redaktionell
(Bücher, Bücher: Sach- und Fachliteratur, Digitale Medien (redaktionell) etc.)
ab 30 €
Werbung
(Anzeigen, Aussenwerbung, Digitale Medien, Fernsehwerbung, Karten, Werbemittel, Zeitschriften etc.)
ab 55 €
Handelsprodukte
(bedruckte Textilie, Kalender, Postkarte, Grußkarte, Verpackung etc.)
ab 75 €
Pauschalpreise
Rechtepakete für die unbeschränkte Bildnutzung in Print oder Online
ab 495 €