Results 1 to 10 of about 7,869 (193)

Adaptation to an Intracellular Lifestyle by a Nitrogen-Fixing, Heterocyst-Forming Cyanobacterial Endosymbiont of a Diatom

open access: yesFrontiers in Microbiology, 2022
The symbiosis between the diatom Hemiaulus hauckii and the heterocyst-forming cyanobacterium Richelia intracellularis makes an important contribution to new production in the world’s oceans, but its study is limited by short-term survival in the ...
Enrique Flores   +2 more
exaly   +4 more sources

c-di-GMP Homeostasis Is Critical for Heterocyst Development in Anabaena sp. PCC 7120

open access: yesFrontiers in Microbiology, 2021
c-di-GMP is a ubiquitous bacterial signal regulating various physiological process. Anabaena PCC 7120 (Anabaena) is a filamentous cyanobacterium able to form regularly-spaced heterocysts for nitrogen fixation, in response to combined-nitrogen deprivation
Min Huang   +7 more
doaj   +2 more sources

Heterocyst Development and Diazotrophic Growth of Anabaena variabilis under Different Nitrogen Availability

open access: yesLife, 2020
Nitrogen is globally limiting primary production in the ocean, but some species of cyanobacteria can carry out nitrogen (N) fixation using specialized cells known as heterocysts.
Nur Syahidah Zulkefli, Soon-Jin Hwang
doaj   +2 more sources

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

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

open access: yesMicrobiology Spectrum, 2022
Heterocysts are specialized cells that filamentous cyanobacteria differentiate for the fixation of atmospheric nitrogen when other nitrogen sources are not available.
Manuel Brenes-Álvarez   +2 more
doaj   +2 more sources

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

open access: yesBMC Genomics, 2011
Background Cyanobacteria are potential sources of renewable chemicals and biofuels and serve as model organisms for bacterial photosynthesis, nitrogen fixation, and responses to environmental changes. Anabaena (Nostoc) sp.
Head Steven R   +3 more
doaj   +5 more sources

Functional Dissection of Genes Encoding DNA Polymerases Based on Conditional Mutants in the Heterocyst-Forming Cyanobacterium Anabaena PCC 7120

open access: yesFrontiers in Microbiology, 2020
The filamentous cyanobacterium Anabaena sp. PCC 7120 develops N2-fixing heterocyst cells under condition of combined-nitrogen deprivation and constitutes an excellent model for studying cell differentiation.
Wei-Yue Xing   +11 more
doaj   +2 more sources

The Role of Heterocysts in Cyanotoxin Production during Nitrogen Limitation [PDF]

open access: yesToxins, 2023
Cyanobacteria harmful algal blooms (cyanoHABs) can have impacts on human health, aquatic ecosystems, and the economy. Nutrient management is an important mitigation and even remediation strategy.
Mohamed N. Gomaa, Wayne W. Carmichael
doaj   +2 more sources

Design and characterization of a synthetic minimal promoter for heterocyst-specific expression in filamentous cyanobacteria. [PDF]

open access: yesPLoS ONE, 2018
Short and well defined promoters are essential for advancing cyanobacterial biotechnology. The heterocyst of Nostoc sp. is suggested as a microbial cell factory for oxygen sensitive catalysts, such as hydrogenases for hydrogen production, due to its ...
Adam Wegelius   +3 more
doaj   +2 more sources

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

open access: yesPLoS ONE, 2020
HetR and PatS/PatX-derived peptides are the activator and diffusible inhibitor for cell differentiation and patterning in heterocyst-forming cyanobacteria. HetR regulates target genes via HetR-recognition sites.
Yaru Du   +7 more
doaj   +2 more sources

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