Results 41 to 50 of about 2,720 (207)

Glycolipid composition of the heterocyst envelope of Anabaena sp. PCC 7120 is crucial for diazotrophic growth and relies on the UDP‐galactose 4‐epimerase HgdA

open access: yesMicrobiologyOpen, 2019
The nitrogenase complex in the heterocysts of the filamentous freshwater cyanobacterium Anabaenasp. PCC 7120 fixes atmospheric nitrogen to allow diazotrophic growth.
Dmitry Shvarev   +2 more
doaj   +1 more source

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   +1 more source

Influence of Mo and Fe on Photosynthetic and Nitrogenase Activities of Nitrogen-Fixing Cyanobacteria under Nitrogen Starvation

open access: yesCells, 2022
The potential of cyanobacteria to perform a variety of distinct roles vital for the biosphere, including nutrient cycling and environmental detoxification, drives interest in studying their biodiversity.
Asemgul K. Sadvakasova   +10 more
doaj   +1 more source

Phylogeny‐Aware Metabologenomics Accurately Assigns Natural Products to Biosynthetic Gene Clusters

open access: yesMicrobial Biotechnology, Volume 19, Issue 1, January 2026.
We report a statistical approach for associating biosynthetic gene clusters with their cognate metabolites and demonstrate its unprecedented power for scalable natural product discovery. Notably, it drastically reduces spurious associations by explicitly integrating the phylogeny of microbial producer strains.
Judith Boldt   +11 more
wiley   +1 more source

Synergistic Effect of Deoxyanthocyanins from Symbiotic Fern Azolla spp. on hrmA Gene Induction in the Cyanobacterium Nostoc punctiforme

open access: yesMolecular Plant-Microbe Interactions, 2002
The hrmA gene of the N2-fixing cyanobacterium Nostoc punctiforme functions in repressing the formation of transitory motile filaments, termed hormogonia, by plant-associated vegetative filaments.
Michael F. Cohen   +4 more
doaj   +1 more source

Coexistence of Communicating and Noncommunicating Cells in the Filamentous Cyanobacterium Anabaena

open access: yesmSphere, 2021
Multicellularity is found in bacteria as well as in eukaryotes, and the filamentous heterocyst-forming (N ...
Sergio Arévalo   +5 more
doaj   +1 more source

Amazonian Cyanobacteria as a Source of Bioactive Compounds With Antimicrobial and Cytotoxic Properties

open access: yesChemistry &Biodiversity, Volume 22, Issue 12, December 2025.
ABSTRACT Cyanobacteria are photosynthetic microorganisms known for producing diverse bioactive compounds. This study explores the bioactivity of extracts and fractions from Amazonian cyanobacteria and their pigment and phenolic compound production. A fraction from Synechococcus sp. CACIAM 05 showed cytotoxicity against hCMEC/D3 and MG‐63 cells.
Samuel Cavalcante do Amaral   +8 more
wiley   +1 more source

Issue Information [PDF]

open access: yesmLife
mLife, Volume 4, Issue 5, Page i-iv, October 2025.
europepmc   +2 more sources

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

Integrating phytoplankton phenology, traits, and model‐data fusion to advance bloom prediction

open access: yesLimnology and Oceanography Letters, Volume 10, Issue 6, Page 815-834, December 2025.
Abstract While there is a diversity of approaches for modeling phytoplankton blooms, their accuracy in predicting the onset and manifestation of a bloom is still lagging behind what is needed to support effective management. We outline a framework that integrates trait theory and ecosystem modeling to improve bloom prediction.
Matthew R. Hipsey   +6 more
wiley   +1 more source

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