heterocysts
Specialized cells produced by cyanobacteria that are the sites of nitrogen fixation.

Microbiology. . 2009.

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  • Heterocyst — Heterocysts are specialized nitrogen fixing cells formed by some filamentous cyanobacteria, such as Nostoc punctiforme , Cylindrospermum stagnale and Anabaena sperica , during nitrogen starvation. They fix nitrogen from dinitrogen (N2) in the air …   Wikipedia

  • Cyanobacteria — Temporal range: 3500–0 Ma Had n Archean …   Wikipedia

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  • blue-green algae — Biol. a widely distributed group of predominantly photosynthetic prokaryotic organisms of the subkingdom Cyanophyta, resembling phototrophic bacteria, occurring singly or in colonies in diverse habitats: some species can fix atmospheric nitrogen …   Universalium

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  • Nitrogenase — Identifiers EC number 1.18.6.1 CAS number 9013 04 1 …   Wikipedia

  • Nostoc — Photo of N. azollae Scientific classification Kingdom: Bacteria …   Wikipedia

  • Cyanolichens — are lichens that contain cyanobacteria, otherwise known as blue green algae. Some lichens contain both green algae and cyanobacteria. In these cases, the cyanobacteria may be enclosed in cephalodia. These outgrowths of the main thallus can take… …   Wikipedia

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