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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Heterocyst placement strategies to maximize growth of cyanobacterial filaments
, 2012 Under conditions of limited fixed-nitrogen, some filamentous cyanobacteria develop a regular pattern of heterocyst cells that fix nitrogen for the remaining vegetative cells.
Aidan I Brown +10 more
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Heterocyst-Specific Transcription of NsiR1, a Non-Coding RNA Encoded in a Tandem Array of Direct Repeats in Cyanobacteria [PDF]
, 2010 In response to nitrogen deficiency, some cyanobacteria develop heterocysts, a terminally differentiated cell type, specialized for the fixation of atmospheric nitrogen.
Hess, Wolfgang R. +4 more
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Predicted glycosyl transferase genes located outside the HEP island are required for formation of heterocyst envelope polysaccharide in Anabaena sp strain PCC 7120 [PDF]
, 2007 During maturation, heterocysts form an envelope layer of polysaccharide, called heterocyst envelope polysaccharide (HEP), whose synthesis depends on a cluster of genes, the HEP island, and on an additional, distant gene, hepB, or a gene immediately ...
Wang, Yu +6 more
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Identification of conserved and potentially regulatory small RNAs in heterocystous cyanobacteria [PDF]
, 2016 Small RNAs (sRNAs) are a growing class of non-protein-coding transcripts that participate in the regulation of virtually every aspect of bacterial physiology.
Brenes Álvarez, Manuel +3 more
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Biochemistry and Biophysics Reports, 2023 The one-dimensional multicellular cyanobacterium, Anabaena sp. PCC 7120, exhibits a simple topology consisting of two types of cells under the nitrogen-depleted conditions.
Jun-ichi Ishihara, Hiroki Takahashi
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Expanding the Direct HetR Regulon in Anabaena sp. Strain PCC 7120 [PDF]
, 2013 In response to a lack of environmental combined nitrogen, the filamentous cyanobacterium Anabaena sp. strain PCC 7120 differentiates nitrogen-fixing heterocyst cells in a periodic pattern. HetR is a transcription factor that coordinates the regulation of
Callahan, Sean M. +7 more
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Molecular Phylogenetics and Evolution, 2002 Many filamentous cyanobacteria reduce atmospheric nitrogen in specialized differentiated cells called heterocysts. Here we present evidence that shows that members of the unicellular non-heterocyst-differentiating genus Chroococcidiopsis and the filamentous heterocyst-differentiating cyanobacteria are each other's closest living relatives.
Fewer, D., Friedl, Thomas, Budel, B.
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MicrobiologyOpen, 2019 The nitrogenase complex in the heterocysts of the filamentous freshwater cyanobacterium Anabaenasp. PCC 7120 fixes atmospheric nitrogen to allow diazotrophic growth.
Dmitry Shvarev +2 more
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Intercellular Diffusion of a Fluorescent Sucrose Analog via the Septal Junctions in a Filamentous Cyanobacterium [PDF]
, 2015 D.J.N. was supported by a Queen Mary University of London College studentship. M.N.M. was the recipient of an FPU (Formación del Personal Universitario) fellowship from the Spanish Government.
Bornikoel, J +8 more
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