A5030723926- Legume Nitrogen Fixing Symbiosis
- Microbial Community Ecology and Physiology
- Plant-Microbe Interactions and Immunity
- Polar Research and Ecology
- Enzyme Production and Characterization
- Genomics and Phylogenetic Studies
- Plant Pathogenic Bacteria Studies
- Protist diversity and phylogeny
- Microbial Metabolism and Applications
- Chromium effects and bioremediation
- Enzyme-mediated dye degradation
- Light effects on plants
- Agronomic Practices and Intercropping Systems
- Biocrusts and Microbial Ecology
- Photosynthetic Processes and Mechanisms
- Plant Parasitism and Resistance
- Nematode management and characterization studies
- Algal biology and biofuel production
- Mycorrhizal Fungi and Plant Interactions
- Microbial Metabolites in Food Biotechnology
- bioluminescence and chemiluminescence research
- Antimicrobial agents and applications
- TiO2 Photocatalysis and Solar Cells
- Metal-Catalyzed Oxygenation Mechanisms
- Microbial Natural Products and Biosynthesis
Universidad de la República
2016-2025
Instituto de Investigaciones Biológicas Clemente Estable
2013-2024
Carnegie Mellon University
2023
SPring-8
2023
Japan Synchrotron Radiation Research Institute
2023
Search for Extraterrestrial Intelligence
2023
Hyogo Science and Technology Association
2023
Argonne National Laboratory
2023
Centro Uruguayo de Imagenología Molecular
2008-2018
Institut Pasteur
2017
Extracellular polysaccharides play an important role in aggregation and surface colonization of plant-associated bacteria. In this work, we report the time course production monomer composition exopolysaccharide (EPS) produced by wild type strain several mutants plant growth promoting rhizobacterium (PGPR) Azospirillum brasilense. a fructose synthetic medium, Sp7 glucose-rich EPS during exponential phase arabinose-rich stationary death growth. d-glucose or l-arabinose did not support cell as...
Despite the current diagnostic and therapeutic approaches to bladder cancer being widely accepted, there have been few significant advancements in this field over past decades. This underscores necessity for a paradigm shift approach cancer. The role of amyloids remains unclear despite their identification several other pathologies. In study, we present evidence cancer, both vitro vivo. murine model positive correlation was observed between tumor stage, indicating an association progression....
We report the isolation and identification of bacteria that produce extracellular cold-active proteases, obtained from water samples collected near Uruguayan Antarctic Base on King George Island, South Shetlands. The belonged to genera Pseudomonas (growth between 4 30°C) Flavobacterium 18°C). In all cases, protease production was evident when reaching stationary phase at 18 4ºC, but not detected 30ºC. zymogram revealed secretion one per isolate, each with different relative electrophoretic...
Delftia sp. strain JD2 is a plant-growth-promoting bacterium that enhances legume nodulation and growth, acting as nodule-assisting during the co-inoculation of plants with rhizobial strains. In this work, we evaluate how alfalfa Sinorhizobium meliloti U143 increases plant yield under greenhouse conditions analyze pattern secreted bioactive compounds which may be involved in microbe-plant communication. The chemical composition extracellular cultures (EC) produced hydroponic (collected 4, 7,...
Flavobacterium sp. AUG42 is a cellulase-producing bacterium isolated from the Antarctic oligochaete Grania (Annelida). In this work, we report that produces glycoside hydrolase cocktail with CMCase, PASCase and cellobiase activities (optimum pHs temperatures ranging 5.5 to 6.5 40 50 °C, respectively). The time-course analyses of bacterial growth cellulase production showed has maximal activity at stationary phase when growing 16 °C filter paper as cellulosic carbon source, among tested...
Laccase-like activity was detected in melanin-producing strains of Sinorhizobium meliloti mainly cells at the stationary growth phase when copper added to medium. The laccase showed both syringaldazine and ABTS (2,2′-azino-bis-ethylbenzthiazoline-6-sulfonic acid) oxidase activities activated by addition 1.7 mM sodium dodecyl sulfate. Activity totally inhibited 1.0 EDTA, suggesting that enzyme is a metal-dependent one. found be cytosolic having an optimum pH 5.0, estimated molecular mass 95...
Azospirillum brasilense is a plant root-colonizing bacterium that exerts beneficial effects on the growth of many agricultural crops. Extracellular polysaccharides play an important role in its interactions with roots. The pRhico plasmid A. Sp7, also named p90, carries several genes involved synthesis and export cell surface polysaccharides. We generated two Sp7 mutants impaired pRhico-located genes, noeJ noeL, encoding mannose-6-phosphate isomerase GDP-mannose 4,6-dehydratase, respectively....
Here we report the identification of a glycogen phosphorylase (glgP) gene in plant growth-promoting rhizobacterium Azospirillum brasilense, Sp7, and characterization glgP marker exchange mutant this strain. The showed twofold reduction activity an increased accumulation as compared with wild-type indicating that identified indeed encodes protein activity. Interestingly, had higher survival rates than wild type after exposure to starvation, desiccation osmotic pressure. was shown be...
<em>Delftia</em> sp. JD2 is a chromium-resistant bacterium that reduces Cr(VI) to Cr(III), accumulates Pb(II), produces the phytohormone indole-3-acetic acid and siderophores, increases plant growth performance of rhizobia in co-inoculation experiments. We aimed analyze biotechnological potential using genomic approach. has genome 6.76Mb, with 6,051 predicted protein coding sequences 93 RNA genes (tRNA rRNA). The indole-acetamide pathway was identified as responsible for synthesis acid....