Results 51 to 60 of about 1,898 (177)

Inactivation of Three RG(S/T)GR Pentapeptide-Containing Negative Regulators of HetR Results in Lethal Differentiation of Anabaena PCC 7120

open access: yesLife, 2020
The filamentous cyanobacterium Anabaena sp. PCC 7120 produces, during the differentiation of heterocysts, a short peptide PatS and a protein HetN, both containing an RGSGR pentapeptide essential for activity.
Ivan Khudyakov   +2 more
doaj   +1 more source

A Genome-Scale Metabolic Model of Anabaena 33047 to Guide Genetic Modifications to Overproduce Nylon Monomers

open access: yesMetabolites, 2021
Nitrogen fixing-cyanobacteria can significantly improve the economic feasibility of cyanobacterial production processes by eliminating the requirement for reduced nitrogen. Anabaena sp.
John I. Hendry   +6 more
doaj   +1 more source

Photophobotaxis of single‐celled and filamentous cyanobacteria

open access: yesPhotochemistry and Photobiology, Volume 102, Issue 4, Page 1021-1033, July/August 2026.
LED illumination from below induces central accumulation of cyanobacterial species. Abstract Phototaxis refers to an organism's movement toward a light source, while photophobotaxis involves movement into illuminated regions. Although phototaxis in cyanobacteria has been widely studied, photophobotaxis has been investigated in only a few species.
Maria Sinetova   +6 more
wiley   +1 more source

Kineochelins—A New Group of Siderophores From an Antarctic Bacterium

open access: yesMicrobial Biotechnology, Volume 19, Issue 6, June 2026.
Genome‐guided analysis of an Antarctic Actinokineospora strain led to the discovery of kineochelins, a new group of siderophores involved in iron sequestration and microbial competition. Kineochelin production inhibits co‐occurring bacteria and clinically relevant yeasts, highlighting Antarctic microorganisms as promising sources of bioactive natural ...
Stanislava Kralova   +12 more
wiley   +1 more source

Bakteriopolis: Introducing Microbes to Society

open access: yesMicrobial Biotechnology, Volume 19, Issue 6, June 2026.
Bakteriopolis is a travelling exhibition that brings the invisible microbial world into public spaces. The project is accompanied by a broad communication strategy to engage diverse audiences. ABSTRACT Microorganisms, while being fundamental to life on Earth, are often associated with negative perceptions and global crises.
Lena Friebel   +2 more
wiley   +1 more source

Heterocyst differentiation in the cyanobacterium Mastigocladus laminosus [PDF]

open access: yesJournal of Bacteriology, 1984
The morphological and ultrastructural aspects of heterocyst differentiation in the branching, filamentous cyanobacterium Mastigocladus laminosus were examined with light and electron microscopy. The earliest differentiation stages involved cytoplasmic changes, including (i) rapid degradation of carboxysomes, (ii) degradation of polysaccharide granules,
S A, Nierzwicki-Bauer   +2 more
openaire   +2 more sources

Specific mutations in the permease domain of septal protein SepJ differentially affect functions related to multicellularity in the filamentous cyanobacterium Anabaena

open access: yesMicrobial Cell, 2018
Filamentous, heterocyst-forming cyanobacteria are multicellular organisms in which growth requires the activity of two interdependent cell types that exchange nutrients and regulators.
Félix Ramos-León   +3 more
doaj   +1 more source

The Role of MreB, MreC and MreD in the Morphology of the Diazotrophic Filament of Anabaena sp. PCC 7120

open access: yesLife, 2022
The cyanobacterium Anabaena sp. PCC 7120 forms filaments of communicating cells. Under conditions of nitrogen scarcity, some cells differentiate into heterocysts, allowing the oxygen-sensitive N2-reduction system to be expressed and operated in oxic ...
Cristina Velázquez-Suárez   +2 more
doaj   +1 more source

Thiol post‐translational modifications modulate allosteric regulation of the OpcA–G6PDH complex through conformational gate control

open access: yesProtein Science, Volume 35, Issue 5, May 2026.
Abstract In cyanobacteria, the redox‐sensitive protein OpcA acts as a metabolic switch for G6PDH, enabling rapid adjustment of reducing power generation from glycogen catabolism and thereby precisely regulating carbon flux between anabolic and catabolic pathways.
Hoshin Kim   +7 more
wiley   +1 more source

Modeling heterocyst pattern formation in cyanobacteria [PDF]

open access: yesBMC Bioinformatics, 2009
To allow the survival of the population in the absence of nitrogen, some cyanobacteria strains have developed the capability of differentiating into nitrogen fixing cells, forming a characteristic pattern. In this paper, the process by which cyanobacteria differentiates from vegetative cells into heterocysts in the absence of nitrogen and the elements ...
Ziomara P. Gerdtzen   +5 more
openaire   +2 more sources

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