Dynamics of transcriptional start site selection during nitrogen stress-induced cell differentiation in Anabaena sp. PCC7120

J Mitschke, A Vioque, F Haas… - Proceedings of the …, 2011 - National Acad Sciences
The fixation of atmospheric N2 by cyanobacteria is a major source of nitrogen in the
biosphere. In Nostocales, such as Anabaena, this process is spatially separated from …

Directional RNA deep sequencing sheds new light on the transcriptional response of Anabaena sp. strain PCC 7120 to combined-nitrogen deprivation

BL Flaherty, F Van Nieuwerburgh, SR Head… - BMC genomics, 2011 - Springer
Background Cyanobacteria are potential sources of renewable chemicals and biofuels and
serve as model organisms for bacterial photosynthesis, nitrogen fixation, and responses to …

Mutual dependence of the expression of the cell differentiation regulatory protein HetR and the global nitrogen regulator NtcA during heterocyst development

AM Muro‐Pastor, A Valladares, E Flores… - Molecular …, 2002 - Wiley Online Library
Heterocyst differentiation in the cyanobacterium Anabaena sp. strain PCC 7120 depends on
both the global nitrogen regulator NtcA and the cell differentiation regulatory protein HetR …

Transcription Activation by NtcA and 2-Oxoglutarate of Three Genes Involved in Heterocyst Differentiation in the Cyanobacterium Anabaena sp. Strain PCC 7120

A Valladares, E Flores, A Herrero - Journal of bacteriology, 2008 - Am Soc Microbiol
In Anabaena sp. strain PCC 7120, differentiation of heterocysts takes place in response to
the external cue of combined nitrogen deprivation, allowing the organism to fix atmospheric …

Heterocyst-specific transcription of NsiR1, a non-coding RNA encoded in a tandem array of direct repeats in cyanobacteria

D Ionescu, B Voss, A Oren, WR Hess… - Journal of molecular …, 2010 - Elsevier
In response to nitrogen deficiency, some cyanobacteria develop heterocysts, a terminally
differentiated cell type, specialized for the fixation of atmospheric nitrogen. In Nostocales …

Identification of the direct regulon of NtcA during early acclimation to nitrogen starvation in the cyanobacterium Synechocystis sp. PCC 6803

J Giner-Lamia, R Robles-Rengel… - Nucleic acids …, 2017 - academic.oup.com
In cyanobacteria, nitrogen homeostasis is maintained by an intricate regulatory network
around transcription factor NtcA. Although mechanisms controlling NtcA activity appear to be …

Heterocyst development in Anabaena

JW Golden, HS Yoon - Current opinion in microbiology, 2003 - Elsevier
Many filamentous nitrogen-fixing cyanobacteria protect nitrogenase from oxygen in
differentiated cells called heterocysts. Heterocyst development is controlled by the …

Genome-wide Expression Analysis of the Responses to Nitrogen Deprivation in the Heterocyst-forming Cyanobacterium Anabaena sp. Strain PCC 7120

S Ehira, M Ohmori, N Sato - DNA research, 2003 - academic.oup.com
A heterocyst is a terminally differentiated cell of cyanobacteria which is specialized in
dinitrogen fixation. Heterocyst differentiation in Anabaena sp. strain PCC 7120 is triggered …

Genetic responses to carbon and nitrogen availability in Anabaena

A Herrero, E Flores - Environmental microbiology, 2019 - Wiley Online Library
Heterocyst‐forming cyanobacteria are filamentous organisms that perform oxygenic
photosynthesis and CO2 fixation in vegetative cells and nitrogen fixation in heterocysts …

ChIP analysis unravels an exceptionally wide distribution of DNA binding sites for the NtcA transcription factor in a heterocyst-forming cyanobacterium

S Picossi, E Flores, A Herrero - BMC genomics, 2014 - Springer
Background The CRP-family transcription factor NtcA, universally found in cyanobacteria,
was initially discovered as a regulator operating N control. It responds to the N regime …