The Heterocyst-Specific Small RNA NsiR1 Regulates the Commitment to Differentiation in Nostoc

Autor: Manuel Brenes-Álvarez, Agustín Vioque, Alicia M. Muro-Pastor

Publikováno v: Microbiology Spectrum, Vol 10, Iss 2 (2022)

ABSTRACT Heterocysts are specialized cells that filamentous cyanobacteria differentiate for the fixation of atmospheric nitrogen when other nitrogen sources are not available. Heterocyst differentiation at semiregular intervals along the filaments re

Externí odkaz: https://doaj.org/article/f03ff50d4f9648ffbdade0de89ebbaf8

The Nitrogen Stress-Repressed sRNA NsrR1 Regulates Expression of all1871, a Gene Required for Diazotrophic Growth in Nostoc sp. PCC 7120

Autor: Isidro Álvarez-Escribano, Manuel Brenes-Álvarez, Elvira Olmedo-Verd, Agustín Vioque, Alicia M. Muro-Pastor

Publikováno v: Life, Vol 10, Iss 5, p 54 (2020)

Small regulatory RNAs (sRNAs) are post-transcriptional regulators of bacterial gene expression. In cyanobacteria, the responses to nitrogen availability, that are mostly controlled at the transcriptional level by NtcA, involve also at least two small

Externí odkaz: https://doaj.org/article/5052d522927045abb11431033e20adf1

A nitrogen stress-inducible small RNA regulates CO2 fixation in Nostoc

Autor: Alicia M. Muro-Pastor, Agustín Vioque, Manuel Brenes-Álvarez, Elvira Olmedo-Verd

Publikováno v: Plant Physiology
idUS. Depósito de Investigación de la Universidad de Sevilla
instname
Digital.CSIC. Repositorio Institucional del CSIC

In the absence of fixed nitrogen, some filamentous cyanobacteria differentiate heterocysts, specialized cells devoted to fixing atmospheric nitrogen (N2). This differentiation process is controlled by the global nitrogen regulator NtcA and involves e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0ba2dcf19d8d17c0862a12cf9b73491

The Integrity of the Cell Wall and Its Remodeling during Heterocyst Differentiation Are Regulated by Phylogenetically Conserved Small RNA Yfr1 in Nostoc sp. Strain PCC 7120

Autor: Agustín Vioque, Alicia M. Muro-Pastor, Manuel Brenes-Álvarez

Publikováno v: idUS. Depósito de Investigación de la Universidad de Sevilla
instname
mBio, Vol 11, Iss 1 (2020)
mBio, Vol 11, Iss 1, p e02599-19 (2020)
Digital.CSIC. Repositorio Institucional del CSIC

Yfr1 is a strictly conserved small RNA in cyanobacteria. A bioinformatic prediction to identify possible interactions of Yfr1 with mRNAs was carried out by using the sequences of Yfr1 from several heterocyst-forming strains, including Nostoc sp. stra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daee2226eeed8c59465fbcf048ee5c87

Elements of the heterocyst-specific transcriptome unravelled by co-expression analysis in Nostoc sp. PCC 7120

Autor: Alicia M. Muro-Pastor, Jan Mitschke, Jens Georg, Wolfgang R. Hess, Agustín Vioque, Manuel Brenes-Álvarez, Elvira Olmedo-Verd

Publikováno v: idUS. Depósito de Investigación de la Universidad de Sevilla
instname
Digital.CSIC. Repositorio Institucional del CSIC

Nitrogen is frequently limiting microbial growth in the environment. As a response, many filamentous cyanobacteria differentiate heterocysts, cells devoted to N fixation. Heterocyst differentiation is under the control of the master regulator HetR. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f095bd68300510fe905d742a0e366490