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Scale bar indicates 50 µm. Sample from the pond Hegne Moor situated in the vicinity of Lake Constance. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA).
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Muelas del Pan, Castille and Leon, Spain
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Villoslada de Cameros, La Rioja, Spain
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Villoslada de Cameros, La Rioja, Spain
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Villoslada de Cameros, La Rioja, Spain
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Anabaena (a-na-bean-a) is a filamentous cyanobacterium, the slightly larger cells are heterocysts, and are associated with nitrogen fixation. Nitrogen fixing cyanobacteria are important for nitrogen generation in rice paddy fields. Differential interference contrast.
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Anabaena (ann-a-bean-ah) (tentative identification) filaments with heterocysts and cells of variable size. Differential interference contrast.
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Anabaena (ann-a-bean-a) one of the filamentous blue green alga which can form heterocysts. Single filaments are attached to the substrate and occur within an irregular mucus sheath which acquires metal salts to become brown in colour. Heterocysts are spherical, more hyaline, slightly larger than other cells and are a site for enhanced nitrogen fixation. Phase contrast.
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Anabaena (ann-a-bean-a) one of the filamentous blue green alga which can form heterocysts. Single filaments are attached to the substrate and occur within an irregular mucus sheath which acquires metal salts to become brown in colour. Heterocysts are spherical, more hyaline, slightly larger than other cells and are a site for enhanced nitrogen fixation. Differential interference contrast.
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Anabaena (ann-a-bean-a) one of the filamentous blue green alga which can form heterocysts. Single filaments are attached to the substrate and occur within an irregular mucus sheath which acquires metal salts to become brown in colour. The sheath is emphasized in this image. Heterocysts are spherical, more hyaline, slightly larger than other cells and are a site for enhanced nitrogen fixation. Phase contrast.
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Anabaena (ann-a-bean-a) a filamentous blue green algae, with differentiated cells within the filament or trichome. Differential interference microscopy.
data on this strain.
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Anabaena (ann-a-bean-a) a filamentous blue green algae, with differentiated cells within the filament. The central cell is a heterocyst, the site of nitrogen fixation. Differential interference microscopy.
data on this strain.
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Anabaena (ann-a-bean-a) filamentous blue-green alga (cyanobacterium), some cells are different to others. They are referred to as heterocysts, and seem to be specialised to carry out nitrogen fixation. Differential interference contrast.
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Anabaena. Cell observed in freshwater sediments in the vicinity of Broome, Western Australia in September 2003. This image was taken using differential interference contrast optics. This work was supported by the Australian Biological Resources Study.
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A gliding filamernt of Anabaena, a couple of heterocysts are visible within the filament.
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Filaments of Anabaena. The species may form heterocysts (thick walled cell, lower filament last complete cell on the right) and also resistant cells such as the long cylindrical cell. Phase contrast microscopy.
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Several filaments of a blue green alga that does not form heterocysts. This image taken after most of the water had dried out and illustrates how microbes may survive in very very thin films of water (in this case only a few microns thick). Differential intereference contrast optics.
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Scale bar indicates 50 µm. Sample from the pond Hegne Moor situated in the vicinity of Lake Constance. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Scale bar indicates 50 µm. Sample from a wetland at the Pillersee (Tyrol, Austria). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Description: Deutsch: Anabaena azollae. Date: 8 December 2015, 15:21:08. Source: Own work. Author:
Atriplex82.
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Pentecost, Allan [Artist] (2016) at Freshwater Biological Association [publisher]
Wikimedia Commons
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Description: English: Cyanobacteria mats dominated by Anabaena sp. (heterocystous) in Mayotte lagoon at 14 m depth. Date: 8 November 2011. Source: L. Charpy et. al. "Cyanobacteria in Coral Reef Ecosystems: A Review", Journal of Marine Biology
doi:10.1155/2012/259571. Author: L. Charpy, B. E. Casareto, M. J. Langlade, Y. Suzuki. Permission(
Reusing this file):
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