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1 гетероцисты
Специализированные клетки, образующиеся у нитчатых цианобактерий при недостатке связанного азота. По своей функции гетероцисты – места фиксации азота в аэробных условиях.
Русско-английский словарь терминов по микробиологии > гетероцисты
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2 гетероцисты
специализированные клетки цианобактерий (см. цианобактерии), основная функция которых заключается в фиксации молекулярного азота; образуются при недостатке связанного азота. Г. содержат гликолипидный и полисахаридный слои, которые служат барьерами для диффузии газов внутрь.см. также акинетыТолковый биотехнологический словарь. Русско-английский. > гетероцисты
См. также в других словарях:
heterocysts — Specialized cells produced by cyanobacteria that are the sites of nitrogen fixation … Dictionary of microbiology
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 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
