Results 21 to 30 of about 2,158,587 (221)

An integrative approach for modeling and simulation of heterocyst pattern formation in cyanobacteria filaments. [PDF]

open access: yesPLoS Computational Biology, 2015
Heterocyst differentiation in cyanobacteria filaments is one of the simplest examples of cellular differentiation and pattern formation in multicellular organisms.
Alejandro Torres-Sánchez   +2 more
doaj   +12 more sources

cyAbrB Transcriptional Regulators as Safety Devices To Inhibit Heterocyst Differentiation in Anabaena sp. Strain PCC 7120. [PDF]

open access: yesJ Bacteriol, 2019
Spore formation in Bacillus subtilis and Streptomyces has been extensively studied as models of prokaryotic nonterminal cell differentiation. In these organisms, many cells/hyphae differentiate simultaneously, which is governed by a network in which one ...
Higo A   +4 more
europepmc   +2 more sources

Relationships between the ABC-exporter HetC and peptides that regulate the spatiotemporal pattern of heterocyst distribution in Anabaena. [PDF]

open access: yesPLoS ONE, 2014
In the model cyanobacterium Anabaena sp. PCC 7120, cells called heterocysts that are specialized in the fixation of atmospheric nitrogen differentiate from vegetative cells of the filament in the absence of combined nitrogen.
Laura Corrales-Guerrero   +2 more
doaj   +6 more sources

Phenotypic Assessment Suggests Multiple Start Codons for HetN, an Inhibitor of Heterocyst Differentiation, in Anabaena sp. Strain PCC 7120. [PDF]

open access: yesJ Bacteriol, 2018
The proper placement of different cell types during a developmental program requires the creation and maintenance of a biological pattern to define the cells that will differentiate.
Rivers OS   +4 more
europepmc   +2 more sources

Correction: Expression from DIF1-motif promoters of hetR and patS is dependent on HetZ and modulated by PatU3 during heterocyst differentiation. [PDF]

open access: yesPLoS ONE, 2022
[This corrects the article DOI: 10.1371/journal.pone.0232383.].
Yaru Du   +7 more
doaj   +3 more sources

Terminal heterocyst differentiation in the Anabaena patA mutant as a result of post-transcriptional modifications and molecular leakage. [PDF]

open access: yesPLoS Computational 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 heterocyst.
Pau Casanova-Ferrer   +2 more
doaj   +2 more sources

The Pkn22 Kinase of Nostoc PCC 7120 Is Required for Cell Differentiation via the Phosphorylation of HetR on a Residue Highly Conserved in Genomes of Heterocyst-Forming Cyanobacteria

open access: yesFrontiers in Microbiology, 2020
Hanks-type kinases encoding genes are present in most cyanobacterial genomes. Despite their widespread pattern of conservation, little is known so far about their role because their substrates and the conditions triggering their activation are poorly ...
Baptiste Roumezi   +5 more
doaj   +2 more sources

The heterocyst differentiation transcriptional regulator HetR of the filamentous cyanobacterium Anabaena forms tetramers and can be regulated by phosphorylation [PDF]

open access: yesMolecular Microbiology, 2016
Many filamentous cyanobacteria respond to the external cue of nitrogen scarcity by the differentiation of heterocysts, cells specialized in the fixation of atmospheric nitrogen in oxic environments. Heterocysts follow a spatial pattern along the filament
A. Valladares, E. Flores, A. Herrero
semanticscholar   +2 more sources

Tansley Review No. 107. Heterocyst and akinete differentiation in cyanobacteria [PDF]

open access: yesNew Phytologist, 1999
Summary 3I. introduction 4II. the cyanobacteria 7III. the heterocyst 91. Function and metabolism 92. Heterocyst structure 12(a) Overview 12(b) The polysaccharide (homogeneous) layer 12(c) The glycolipid (laminated) layer 12(d) The septum and microplasmodesmata 123. Nitrogen regulation and heterocyst development 124.
DAVID G. ADAMS, PAULA S. DUGGAN
openaire   +3 more sources

FurA influences heterocyst differentiation in Anabaena sp. PCC 7120

open access: yesFEBS Letters, 2013
In Anabaena sp. PCC 7120, FurA is a global transcriptional regulator whose expression is strongly induced by NtcA in proheterocysts and remains stably expressed in mature heterocysts. In the present study, overexpression of furA partially suppressed heterocyst differentiation by impairing morphogenesis at an early stage.
Andrés González   +3 more
semanticscholar   +3 more sources

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