Tolypothrichaceae

Tolypothrix (toe-leap-owe-thricks), a filamentous and branching blue green alga (cyanobacterium) with a heterocyst located at the base of each branch point. Filaments within a well developed sheath. Differential interference contrast.

Tolypothrix (toe-leap-owe-thricks), a filamentous and branching blue green alga (cyanobacterium) with a heterocyst located at the base of each branch point. Filaments within a well developed sheath. Phase contrast.

Tolypothrix (toll-eep-o-thricks) is a filamentous blue-green alga (cyanobacterium) which expresses false branching, i.e., the cells divide in one plane only, but a heterocyst may cause cells to break free and form an apparent branch. Heterocysts are differentiated thick-walled cells that provide the site for nitrogen fixation. This image shows a tangle of filaments. Differential interference microscopy. data on this strain.

Tolypothrix (toll-eep-o-thricks) is a filamentous blue-green alga (cyanobacterium) which expresses false branching, i.e., the cells divide in one plane only, but a heterocyst may cause cells to break free and form an apparent branch. Two false branches are shown in this image. Heterocysts are differentiated thick-walled cells that provide the site for nitrogen fixation, and three are prominent in this image. Differential interference microscopy. data on this strain.

Tolypothrix (toll-eep-o-thricks) is a filamentous blue-green alga (cyanobacterium) which expresses false branching, i.e., the cells divide in one plane only, but a heterocyst may cause cells to break free and form an apparent branch. Heterocysts are differentiated thick-walled cells that provide the site for nitrogen fixation. In this image, the empty-looking heterocyst is located within the trichome and has a rectanglular shape. Differential interference microscopy. data on this strain.

Tolypothrix (toll-eep-o-thricks) is a filamentous blue-green alga (cyanobacterium) which expresses false branching, i.e., the cells divide in one plane only, but a heterocyst may cause cells to break free and form an apparent branch. Heterocysts are differentiated thick-walled cells that provide the site for nitrogen fixation. In this image, the heterocyst is terminal and has a hemispherical shape. Differential interference microscopy. data on this strain.

Ribadelago de Franco, Castille and Leon, Spain

Ribadelago de Franco, Castille and Leon, Spain

Lardero, La Rioja, Spain

Ribadelago de Franco, Castilla y Len, Espaa

Ribadelago de Franco, Castille and Leon, Spain

Ribadelago de Franco, Castille and Leon, Spain