Results 41 to 50 of about 1,262 (192)
Effect of glutamine on growth and heterocyst differentiation in the cyanobacterium Anabaena variabilis [PDF]
Journal of Bacteriology, 1986 Mutants of the cyanobacterium Anabaena variabilis that were capable of increased uptake of glutamine, as compared with that in the parental strains, were isolated. Growth of these mutants and their parental strains was measured in media containing N2, ammonia, or glutamine as a source of nitrogen.
T, Thiel, M, Leone
openaire +2 more sources
eLife, 2020 Local activation and long-range inhibition are mechanisms conserved in self-organizing systems leading to biological patterns. A number of them involve the production by the developing cell of an inhibitory morphogen, but how this cell becomes immune to ...
Xiaomei Xu +5 more
doaj +1 more source
FraH is required for reorganization of intracellular membranes during heterocyst differentiation in Anabaena sp. strain PCC 7120. [PDF]
J Bacteriol, 2011 In the filamentous, heterocyst-forming cyanobacteria, two different cell types, the CO 2-fixing vegetative cells and the N 2-fixing heterocysts, exchange nutrients and regulators for diazotrophic growth. In the model organism Anabaena sp. strain PCC 7120,
Merino-Puerto V +6 more
europepmc +3 more sources
Toxins, 2018 Cyanobacteria synthesize neurotoxic β-N-methylamino-l-alanine (BMAA). The roles of this non-protein amino acid in cyanobacterial cells are insufficiently studied. During diazotrophic growth, filamentous cyanobacteria form single differentiated cells,
Alexandra A. Popova +5 more
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Transcription activation by NtcA in the absence of consensus NtcA-binding sites in an anabaena heterocyst differentiation gene promoter. [PDF]
J Bacteriol, 2012 Heterocyst differentiation is orchestrated by the N control transcriptional regulator NtcA and the differentiation-specific factor HetR. In Anabaena sp.
Camargo S +3 more
europepmc +2 more sources
mBio, 2014 Differentiation of single cells along filaments of cyanobacteria constitutes one of the simplest developmental patterns in nature. In response to nitrogen deficiency, certain cells located in a semiregular pattern along filaments differentiate into ...
Alicia M. Muro-Pastor
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Toxins, 2020 The oldest prokaryotic photoautotrophic organisms, cyanobacteria, produce many different metabolites. Among them is the water-soluble neurotoxic non-protein amino acid beta-N-methylamino-L-alanine (BMAA), whose biological functions in cyanobacterial ...
Olga A. Koksharova +4 more
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Surveying DNA Elements within Functional Genes of Heterocyst-Forming Cyanobacteria.
PLoS ONE, 2016 Some cyanobacteria are capable of differentiating a variety of cell types in response to environmental factors. For instance, in low nitrogen conditions, some cyanobacteria form heterocysts, which are specialized for N2 fixation.
Jason A Hilton +2 more
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Mathematical models of nitrogen-fixing cell patterns in filamentous cyanobacteria
Frontiers in Cell and Developmental Biology, 2022 The Anabaena genus is a model organism of filamentous cyanobacteria whose vegetative cells can differentiate under nitrogen-limited conditions into a type of cell called a heterocyst. These heterocysts lose the possibility to divide and are necessary for
Pau Casanova-Ferrer +6 more
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, 2007 Wild-type Anabaena sp. strain PCC 7120, a filamentous nitrogen-fixing cyanobacterium, produces single heterocysts at semi-regular intervals. asr0100 (patU5) and alr0101 (patU3) are homologous to the 5' and 3' portions of patU of Nostoc punctiforme ...
Khudyakov, Ivan +8 more
core +1 more source