Heterocysts or heterocytes are specialized nitrogen-fixing cells formed during nitrogen starvation by some filamentous cyanobacteria, such as Nostoc,...

cyanobacteria, this enzyme system is housed in a specialized cell called the heterocyst. The production of the nitrogenase complex is genetically regulated, and...

conditions, vegetative cells differentiate into heterocysts at semiregular intervals along the filaments. Heterocyst cells are terminally specialized for nitrogen...

host through the action of terminally differentiated cells known as heterocysts. Nostoc is a genus that includes many species that are diverse in morphology...

partially surrounded by a gelatinous sheet. The trichomes have a basal heterocyst. Each trichome has a narrow aptic portion which is whip- or tail-like...

enveloped, thick-walled, non-motile, dormant cell formed by filamentous, heterocyst-forming cyanobacteria under the order Nostocales and Stigonematales. Akinetes...

Within these fascicles, heterocysts often appear at various intervals on the trichomes. When attached to a trichome, heterocysts import carbohydrates which...

called heterocysts. Heterocysts may also form under the appropriate environmental conditions (anoxic) when fixed nitrogen is scarce. Heterocyst-forming...

that form specialized cell types in the absence of combined nitrogen (heterocysts), during unfavorable conditions (akinetes) or to spread and initiate...

that the heterocysts are often produced in a repeating pattern within a filament composed of several vegetative cells, and once formed, heterocysts cannot...

punctatus requires genes involved in nitrogen control and initiation of heterocyst differentiation". Microbiology. 148 (Pt 1): 315–323. doi:10.1099/00221287-148-1-315...

fix nitrogen in daylight under aerobic conditions without the use of heterocysts. Trichodesmium can live as individual filaments, with tens to hundreds...

Illustration of "Cylindrospermum stagnale". h, heterocyst; sp, resting spore...

Along the trichomes, larger specialist nitrogen-fixing cells called heterocysts occur between the ordinary cells. When wet, Nostoc commune is bluish-green...

"Genes of Cyanobacterial Origin in Plant Nuclear Genomes Point to a Heterocyst-Forming Plastid Ancestor". Molecular Biology and Evolution. 25 (4): 748–761...

nitrogen as well. These are colonial bacteria that have specialized cells (heterocysts) that lack the oxygen generating steps of photosynthesis. Examples are...

Kumar K, Mella-Herrera RA, Golden JW (April 2010). "Cyanobacterial heterocysts". Cold Spring Harbor Perspectives in Biology. 2 (4): a000315. doi:10...

Trichormus azollae, syn. Anabaena azollae with heterocyst of Azolla sp....

By 408 million years ago, nitrogen fixating cyanobacteria had evolved heterocysts to protect their nitrogenase from oxygen. Eukaryotes may have arisen...

circinalis form heterocysts, larger, round, nitrogen-fixing cells found every ten to twenty cells or so on the filament. Heterocysts function to convert...

reproduction in unicellular, filamentous cyanobacteria, and some may contain heterocysts and akinetes. Cyanobacteria differentiate into hormogonia when exposed...

Heterocyst of Scytonema crispum...

  Richelia’s trichomes are made up of two cell types: Heterocyst and Vegetative. The heterocyst is a terminal single cell within which nitrogen fixation...

mechanism to keep the concentration of oxygen low. Examples include: heterocyst formation (cyanobacteria e.g. Anabaena) where one cell does not photosynthesize...

is the main respiratory and photosynthetic soluble electron donor in heterocysts of the cyanobacterium Anabaena sp. PCC 7120". Biochimica et Biophysica...

in which Nostoc provides nitrogen to its host through cells known as heterocysts, and which are able to carry out photosynthesis. The Nostoc colonies...

upper 2/3 of the "bladder" contains the Nostoc filaments and Nostoc heterocysts, the lower 1/3 is filled with lipid droplets. The fungal spores are 250 micrometres...

nutrient limitation, some of these cells undergo differentiation into heterocysts, akinetes or hormogonia. N. punctiforme is one of the Nostoc strains...

Some members show a decrease in width from the base, and some have heterocysts. Komárek J, Kaštovský J, Mareš J, Johansen JR (2014). "Taxonomic classification...

nitrogen-fixing heterocysts. Since hormogonia are important for establishing symbiotic partnerships between cyanobacteria and plants, and heterocysts are essential...