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

Microbiology. . 2009.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • 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

  • Anabaena — For Anabaena A.Juss., a plant genus of the Euphorbiaceae, see its synonym Romanoa. Taxobox name = Anabaena image width = 200px image caption = Anabaena sphaerica (Nostocales) regnum = Bacteria divisio = Cyanophyta classis = Cyanophyceae ordo =… …   Wikipedia

  • Diazotroph — Diazotrophs are bacteria and archaea that fix atmospheric nitrogen gas into a more usable form such as ammonia.[1] A diazotroph is an organism that is able to grow without external sources of fixed nitrogen. Examples of organisms that do this are …   Wikipedia

  • 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

  • Molybdenum — niobium ← molybdenum → technetium Cr ↑ Mo ↓ W …   Wikipedia

  • Hormogonium — Hormogonia are motile filaments of cells formed by some cyanobacteria in the family Nostoceae.Cyanobacteria differentiate into hormogonia when exposed to an environmental stress or when placed in new media.Hormogonium differentiation is crucial… …   Wikipedia

  • Nitrogenase — Identifiers EC number 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

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”