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Sodium hypochlorite (NaOCl) is currently the golden standard for root canal irrigation. NaOCl at a concentration of 5.25% to 6% can eliminate E. faecalis, but this concentration can increase the risk of toxic effects. Cy...

Benthic cyanobacteria research in high mountain reservoirs remains limited, mainly due to their complexity and knowledge gaps that persist in relation to their ecology in tropical regions. This study aimed to explore the...

Abstract Mycosporine‐like amino acids (MAAs) are natural sunscreens synthesized by a wide range of organisms. Although the induction of MAA production by ultraviolet radiation is well established, the signaling pathway...

Ten rare filamentous cyanobacterial oscillatorialean morphospecies, recorded in plankton of freshwater water bodies in tropical and subtropical South America, mainly in São Paulo State, Brazil, are described in this art...

Higher plants and cyanobacteria metabolize sucrose (Suc) by a similar set of enzymes. Suc synthase (SuS, UDP-glucose: D-fructose 2- -D-glucosyl transferase, EC 2.4.1.13) catalyses the synthesis and cleavage of Suc, and i...

The net synthesis of sucrose (Suc) is catalysed by the sequential action of Suc-phosphate synthase (SPS) and Suc-phosphate phosphatase (SPP). SPS and SPP from Anabaena sp. PCC 7120 (7120-SPS and 7120-SPP) define minimal ...

AbstractA simple, rapid and reliable procedure for permeabilizing cyanobacterial cells and measuring the glycogen synthetic pathway in situ, is presented. Cells from Anabaena sp. strain PCC 7120 were permeabilized with a...

Las cianobacterias constituyen un grupo taxonómico de organismos diversos que colonizan ambientes acuáticos y bajo ciertas condiciones ambientales aumentan exponencialmente su biomasa produciendo toxinas que generan se...

Abstract Background Several cyanobacterial strains are known to contain a high number of genome copies and elevated cell cycle dynamics. We systematically investigated the ploidy of the model cyanobacterium Synechocystis...

Abstract Current paradigms for the origin and evolutions of life and the environment on early Earth have been based on the premises that carbon dioxide (CO2) and nitrogen gas (N2) were the principal constituents of the a...

Abstract Many sulfated polysaccharides (SPSs) possess useful physicochemical properties and biological activities and are widely used in industry. Currently, major SPSs are derived from livestock and marine organisms. To...

Microbially-colonized sediments tend to be more resistant to erosional events than mostly abiotic sediments. However, the effect of complex microbial associations, such as microbial mats over sediments and the protection...

Abstract Vibrio cholerae is a human diarrheal pathogen and an estuarine organism that associates with both terrestrial and aquatic arthropods. Using the model terrestrial arthropod Drosophila melanogaster, we previously ...

Sweet potato (Ipomoea batatas L.) is a staple food with many promising health benefits. However, obstacles associated with continuous cropping are common in modern intensive sweet potato production, partially due to imba...

ABSTRACT We evaluated the difference between rumen bacteria in Tan sheep fed either by grazing or in a feedlot. The aim was to provide a theoretical basis for ruminant nutrition and meat quality based on rumen fermentati...

Intestinal microbiota of aquatic animals is closely associated with the environment, influencing their health, immune defense, and environmental adaptability. To understand the relationships among the Manila clam (Rudita...

Dezenove segmentos de riachos da Bacia do Rio das Pedras (25º13'-25º26'S e 51º13'-51º28'W) foram examinados quanto à presença de macroalgas, dos quais 16 foram visitados uma vez durante o período de 26 de julho a ...

Abstract “Miyamikhri,” a traditionally fermented bamboo shoot consumed by the Dimasa tribe of Assam, was investigated using a multi-omics approach integrating metagenomics, functional prediction, molecular docking, a...

Nitric oxide synthase (NOS) synthesizes NO from the substrate L-arginine (Arg). NOS with distinct biochemical properties were characterized from two photosynthetic microorganisms, the unicellular algae Ostreococcus tauri...

Monitoring algal blooms in shallow eutrophic lakes remains challenging due to subtle biomass signals and interference from bottom reflectance and high suspended sediment loads. Utah Lake, a large eutrophic and highly tur...

Water limitation represents the main environmental constraint affecting crop yield worldwide. Photosynthesis is a primary drought target, resulting in over-reduction of the photosynthetic electron transport chain and inc...

Las cianobacterias o algas azul verdosas poseen características tanto de algas como de bacterias. Ante condiciones favorables, tales como, aguas con altos contenidos de nutrientes o residuos químicos, entre otros, ocur...

Las cianotoxinas son un grupo química y toxicológicamente diverso de toxinas naturales. A pesar de su origen acuático, la mayor parte de las cianotoxinas que se han identificado hasta la fecha parecen ser más peligro...

Los procesos biogeoquímicos relacionados con la dinámica de nutrientes, isótopos estables, ácidos grasos marcadores y el plancton fueron estudiados en un lago salino de la Pampa Argentina. El amonio fue el compuest...