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One end of each cell accumulates rings when the cells divide. These cell rings help to distinguish oedogonium from other filamentous green algae. Phase contrast.
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Filamentous of Oedogonium do not branch. This image shows one cell with an oogonium inside. Phase contrast optics.
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The chloroplasts are ribbon like and form a layer just under the cell wall. Bright regions are where the pyrenoids are located. The bright green colour is typical of plastids of green algae. Differential interference contrast optics.
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This is the flagellated zoospore that is formed as a result of asexual reproduction, swims around, finds somehwere to settle and starts to change into a filament. The zoospore swims by the flagella that form a wreath around the anterior end of the cell (upper). Phase contrast micrograph.
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A typical section of a filament of Oedogonium. Cell walls have rings at one end. Chloroplasts are bright green. Differential interference contrast optics.
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The wall of a dead filament of Oedogonium acts as the substrate from which other organisms attach. In the case of Oedogonium, male filaments are much thinner than female filaments and often attach to the females. Which may be what is happening here. Phase contrast optics.
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The cell wall of a dead Oedogonium acts as the substrate from which other organisms attach. There is a community of bacteria, blue green algae and maybe even some male filaments of Oedogonium. Differential interference contrast optics.
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The green algal material in this boggy pond of the Beaucamp wetlands is Oedogonium. It forms loose spongy aggregates.
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The green algal material in this boggy pond of the Beaucamp wetlands is Oedogonium. It forms loose spongy aggregates.
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After settling, the zoopsore develops into a filament. This germling is the first stage of development of the filament. Differential interference contrast optics.
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Pediastrum (pee-dee-ass-trum) a colonial green alga. cellulose cell walls, plastids with chlorophyll B, pyrenoids present. Colonies flat, and species distinguished by shape and arrangement of cells. Differential interference contrast.
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Pediastrum is a large, flat desmid. Many cells join together by their cellulose walls to form a regular, star-shaped array.
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Palmodictyon (palm-o-dick-tea-on) is a branching green alga in which coccoid cells are located within a mucus-like branching structure. The mucoid matrix develops a pink colour with age. The cells divide within the matrix and leave vacated cell walls behind, as this detailed micrograph shows. Differential interference contrast.
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Palmodictyon (palm-o-dick-tea-on) is a branching green alga in which coccoid cells are located within a mucus-like branching structure. The mucoid matrix develops a pink colour with age. The cells divide within the matrix and leave vacated cell walls behind. Phase contrast.
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Palmodictyon (palm-o-dick-tea-on) is a branching green alga in which coccoid cells are located within a mucus-like branching structure. The mucoid matrix develops a pink colour with age. The cells divide within the matrix and leave vacated cell walls behind. Filaments at low magnification. Phase contrast.
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Palmodictyon (palm-o-dick-tea-on) is a branching green alga in which coccoid cells are located within a mucus-like branching structure. The mucoid matrix develops a pink colour with age. The cells divide within the matrix and leave vacated cell walls behind. Phase contrast.
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Palmodictyon (palm-o-dick-tea-on) is a branching green alga in which coccoid cells are located within a mucus-like branching structure. The mucoid matrix develops a pink colour with age. The cells divide within the matrix and leave vacated cell walls behind. Detail of two filaments. Differential interference contrast.
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Ankistrodesmus (anne-kissed-ro-des-muss) is a green alga, small tangled clusters of twisted cells. Four cells in this tangle. Not uncommon in freshwater habitats. Differential interference contrast.
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Ankistrodesmus (anne-kissed-ro-des-muss) is a green alga, small tangled clusters of twisted cells. Two tangles seen here making a spectacle of themselves. Not uncommon in freshwater habitats. Phase contrast.
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Ankistrodesmus (anne-kissed-ro-des-muss) is a green alga, small tangled clusters of twisted cells. Two tangles seen here Not uncommon in freshwater habitats. Phase contrast.
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Ankistrodesmus (anne-kissed-ro-des-muss) is a green alga, often forming small tangled clusters of twisted cells. Four cells in this tangle. Not uncommon in freshwater habitats. Differential interference contrast.
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Ankistrodesmus (anne-kissed-ro-des-muss) is a green alga, cells are usually twisted, sometimes forming a tangle. Phase contrast.
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Scenedesmus (sken-ee-des-mus) a common non-flagellated chlorophyte alga. Like all chlorophytes, Scenedesmus has a cell wall made of cellulose. The genus is comprised of species, all of which have clusters of four cells with spines emerging from the termini. Plastids with chlorophylls a and b and giving them a bright green colour. Differential interference contrast.
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Carteria (car-tear-ee-a) a volvocid green algal cell, with chlorophyll b in the single cup-shaped plastid - giving it a green colour. Eyespot located in plastid, visible anterior of mid line on the right margin of the plastid. Very similar to Chlamydomonas, but distinguished by having 4 flagella. Differential interference contrast.
