Results 51 to 60 of about 18,952 (219)
Glutamine and glutamate transport by Anabaena variabilis [PDF]
Journal of Bacteriology, 1983 Anabaena variabilis, a dinitrogen-fixing cyanobacterium, has high- and low-affinity systems for the transport of glutamine and glutamate. The high-affinity systems have Km values of 13.8 and 100 microM and maximal rates of 13.2 and 14.4 nmol X min-1 X mg of chlorophyll a-1 for glutamine and glutamate, respectively.
J S, Chapman, J C, Meeks
openaire +2 more sources
Microalgae‐Derived Metal Nanostructures: Biosynthesis, Characterization, and Applications
ChemistryOpen, 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
Cogent Food & Agriculture, 2015 The present investigation evaluated the effect of inoculating different cyanobacterial formulations on a set of hybrids of maize, in terms of plant defense enzyme activity, soil health parameters, Zn concentration, and yields.
Radha Prasanna +5 more
doaj +1 more source
Communications Biology, 2023 Transcriptional and translational regulations are important mechanisms for cell adaptation to environmental conditions. In addition to house-keeping tRNAs, the genome of the filamentous cyanobacterium Anabaena sp.
Zi-Qian Wang +4 more
doaj +1 more source
mSphere, 2021 The TonB-dependent transport of scarcely available substrates across the outer membrane is a conserved feature in Gram-negative bacteria. The plasma membrane-embedded TonB-ExbB-ExbD accomplishes complex functions as an energy transducer by physically ...
Hannah Schätzle +5 more
doaj +1 more source
Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 1, January 2026.Abstract Interactions between aquatic organisms and contaminants in under‐ice lake environments are poorly characterized relative to ice‐free seasons. Here, we compared under‐ice arsenic biogeochemical processes and plankton community composition in four subarctic lakes spanning an arsenic contamination gradient.
Amanda J. Little +3 more
wiley +1 more source
The FEBS Journal, Volume 293, Issue 1, Page 96-112, January 2026.Ferredoxin‐dependent flavin thioredoxin reductases (FFTRs) regenerate reduced thioredoxin, sustaining dithiol–disulfide exchange reactions that regulate protein activity in select organisms. In cyanobacterial FFTRs, we describe the formation of a thiolate–flavin charge transfer complex, asynchronous reduction of the two FAD cofactors within the ...
Martha Minjarez‐Saenz +8 more
wiley +1 more source
Freshwater Biology, Volume 71, Issue 1, January 2026.ABSTRACT We evaluated whether riparian forest restoration could mitigate the impacts of agricultural land use on key stream ecosystem processes (total and microbial leaf litter decomposition and periphytic algal biomass accrual) and associated assemblages (invertebrates, aquatic hyphomycetes, and periphytic algae) in three streams located in northern ...
Diana Rojo +7 more
wiley +1 more source
The Anabaena sp. PCC 7120 Exoproteome: Taking a Peek outside the Box
Life, 2015 The interest in examining the subset of proteins present in the extracellular milieu, the exoproteome, has been growing due to novel insights highlighting their role on extracellular matrix organization and biofilm formation, but also on homeostasis and ...
Paulo Oliveira +5 more
semanticscholar +1 more source
Freshwater Biology, Volume 71, Issue 1, January 2026.ABSTRACT Epilithic biofilms along a latitudinal gradient of Arctic/alpine lakes and streams were analysed for their composition of algae (incl. cyanobacteria) and meiofaunal assemblages and correlated these with environmental variables. The composition of algal, meiofauna and nematode assemblages differed between lakes and streams.
Willem Goedkoop +4 more
wiley +1 more source