Results 91 to 100 of about 35,446 (208)

Synechococcus Under Stress: Contrasting Physiological and Transcriptional Responses to Salinity and Temperature in Marine Versus Euryhaline Strains

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
Two model strains of Synechococcus sp.—the marine RS9907 and the euryhaline WH5701—exhibit distinct physiological responses to salinity after long acclimations at optimal and cold growth temperatures. Transcriptomic and photochemical analyses reveal drastic differences in their regulatory strategies and photosynthetic activity across a salinity ...
Isabel Escribano‐Gómez   +6 more
wiley   +1 more source

Structure of the Mg-Chelatase Cofactor GUN4 Reveals a Novel Hand-Shaped Fold for Porphyrin Binding [PDF]

open access: yes, 2005
In plants, the accumulation of the chlorophyll precursor Mg-protoporphyrin IX (Mg-Proto) in the plastid regulates the expression of a number of nuclear genes with functions related to photosynthesis.
Anholt   +63 more
core   +3 more sources

Ecological, Functional, and Phylogenetic Determinants of Cyanobacterial Biomineralisation

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
Cyanobacteria contribute to the global carbon cycle by biomineralising CO2 into solid carbonates. Unlike photosynthesis, biomineralisation is a less‐understood, multifaceted and adaptive metabolic process with significant global impact. It involves cell wall structures, genetic factors, and metabolic pathways that enable mineral formation and help ...
Federica Tiddia   +3 more
wiley   +1 more source

Microalgae‐Derived Metal Nanostructures: Biosynthesis, Characterization, and Applications

open access: yesChemistryOpen, Volume 15, Issue 1, January 2026.
This review highlights the eco‐friendly biosynthesis of silver, gold, iron, and copper nanoparticles using microalgae. It details mechanisms, optimization parameters, and characterization methods, while emphasizing potent biomedical applications including antioxidant, antimicrobial, and anticancer effects.
Jaya Lakkakula   +4 more
wiley   +1 more source

Characterizing active transportation mechanisms for free fatty acids and antibiotics in Synechocystis sp. PCC 6803

open access: yesBMC Biotechnology, 2019
Background Synechocystis sp. PCC 6803 is a photosynthetic bacterium that has been genetically modified to produce industrially relevant chemicals, yet efflux mechanisms have not been well elucidated.
Matthew P. A. Bellefleur   +2 more
doaj   +1 more source

Global Network Alignment [PDF]

open access: yes, 2010
Motivation: High-throughput methods for detecting molecular interactions have lead to a plethora of biological network data with much more yet to come, stimulating the development of techniques for biological network alignment.
Natasa Przulj, Oleksii Kuchaiev
core   +1 more source

The D-ring, Not the A-ring, Rotates in Synechococcus OS-B' Phytochrome [PDF]

open access: yes, 2014
Phytochrome photoreceptors in plants and microorganisms switch photochromically between two states, controlling numerous important biological processes.
Borucki   +40 more
core   +2 more sources

Streptococcus pneumoniae HtrA is a dynamic and monomeric virulence factor capable of forming larger oligomeric complexes

open access: yesProtein Science, Volume 35, Issue 1, January 2026.
Abstract High‐temperature requirement A (HtrA) proteases are a conserved family of serine proteases central to protein quality control and bacterial virulence. While Gram‐negative and human HtrAs are structurally well studied, Gram‐positive homologs remain essentially uncharacterized.
Eunjeong Lee   +14 more
wiley   +1 more source

Phylogeny of Prokaryotes and Chloroplasts Revealed by a Simple Composition Approach on All Protein Sequences from Complete Genomes Without Sequence Alignment [PDF]

open access: yes, 2005
The complete genomes of living organisms have provided much information on their phylogenetic relationships. Similarly, the complete genomes of chloroplasts have helped to resolve the evolution of this organelle in photosynthetic eukaryotes.
C Lemieux   +50 more
core   +3 more sources

Light Adaptation in Phycobilisome antennas: Influence on the Rod Length and Structural Arrangement

open access: yes, 2017
Phycobilisomes, the light-harvesting antennas of cyanobacteria, can adapt to a wide range of environments thanks to a composition and function response to stress conditions.
Cao, Jianshu   +5 more
core   +1 more source

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