A5029697008- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
- Marine Biology and Ecology Research
- Microbial Metabolic Engineering and Bioproduction
- Enzyme Production and Characterization
- Metal Extraction and Bioleaching
- Mine drainage and remediation techniques
- Enzyme Catalysis and Immobilization
- Microbial Fuel Cells and Bioremediation
- Water Quality and Pollution Assessment
- Pharmaceutical and Antibiotic Environmental Impacts
- Minerals Flotation and Separation Techniques
- Probiotics and Fermented Foods
- Geochemistry and Elemental Analysis
- Microbial Natural Products and Biosynthesis
- Protein Hydrolysis and Bioactive Peptides
- GABA and Rice Research
- Mineral Processing and Grinding
- Computational Drug Discovery Methods
- Coal and Its By-products
- Wastewater Treatment and Nitrogen Removal
- Methane Hydrates and Related Phenomena
- Water Quality Monitoring Technologies
- Advanced Proteomics Techniques and Applications
- Microbial Metabolism and Applications
Universidade do Vale do Itajaí
2012-2024
The deep-sea environments of the South Atlantic Ocean are less studied in comparison to North and Pacific Oceans. With aim identifying bacteria this known ocean, 70 strains were isolated from eight sediment samples (depth range between 1905 5560 m) collected eastern part Atlantic, equatorial region Cape Abyssal Plain, using three different culture media. classified into phylogenetic groups, Gammaproteobacteria, Firmicutes Actinobacteria, by analysis 16s rRNA gene sequences....
Abstract Quorum sensing (QS) is a communication mechanism between bacteria, mediated by signals released at high cell densities, which regulates bioluminescence, virulence, and biofilm formation. By inhibiting QS, these processes can be controlled when they become undesirable, as in infectious diseases during biodeterioration of materials. In this context, study investigated the Sensing Inhibition (QSI) activity 60 strains marine Gammaproteobacteria isolated from samples South Atlantic...
Background: Cellulases and lipases have broad industrial application, which calls for an urgent exploration of microorganisms from extreme environments as valuable source commercial enzyme.In this context, the present work describes bioprospection identification deep-sea bacteria that produce cellulases lipases, well their optimal temperature activity.Results: The first step study was screening cellulolytic lipolytic sediment water column, conducted with substrates linked...
Bacterial genome sequencing has revealed a vast number of novel biosynthetic gene clusters (BGC) with potential to produce bioactive natural products. However, the biosynthesis secondary metabolites by bacteria is often silenced under laboratory conditions, limiting controlled expression Here we describe an integrated methodology for construction and screening elicited pre-fractionated library marine bacteria. In this pilot study, chemical elicitors were evaluated mimic environment induce...
Bactérias ácido-láticas (BAL) constituem um grupo diverso, associado à produção de alimentos, incluindo fermentados peixe. Por meio processos fermentativos, é possível obter produtos mais saborosos e saudáveis. Estas bactérias também são importantes na medicina por suas atividades probióticas. Neste contexto, nove linhagens foram isoladas sardinha guaivira. Destas, duas caracterizadas fisiologicamente, juntamente com Leuconostoc mesenteroides ATCC8293. Lactobacillus homohiochii F3 apresentou...
Bacillus stratosphericus LAMA 585 was isolated from the Mid-Atlantic-Ridge seafloor (5,500-m depth). This bacterium presents capacity for cellulase, xylanase, and lipase production when growing aerobically in marine-broth media. Genes involved tolerance of oligotrophic extreme conditions prospection biotechnological products were annotated draft genome (3.7 Mb).
Bacteria of the genus Psychrobacter are known for their psychrophilic characteristics, being extremophilic organisms capable surviving and reproducing in hostile environments low temperature high pressure. Among many there is ability to produce enzymes molecules industrial biotechnology importance, such as pigments proteins related heavy metal bioremediation. The bacterium strain nivimaris LAMA 639 was isolated from sediments Walvis Ridge ocean crest at a depth 4.400 m (33.40 S 2.35 E). It...
Baseado no resultado de seis campanhas amostrais coletadas em 2021 e 2022, compilados a dados revisões da literatura, o presente estudo teve como objeto realizar uma descrição das espécies Polychaeta que habitam região estuário do rio Itajaí-Açu. A lista inclui 29 táxons, dos quais, vinte já foram catalogados na área. Foi incluída espécie Capitella cf. nonatoi, anteriormente descrita capitata. Os baixos valores riqueza encontrados região, bem dominância Heteromastus similis, corroboram com...
Background: Enhanced biological phosphorus removal (EBPR) systems utilize phosphorus-accumulating organisms (PAOs) to remove from wastewater since excessive in water bodies can lead eutrophication. This study aimed characterize a newly isolated PAO strain for its potential application EBPR and screen additional biotechnological potential. Here, sequencing allowed genomic analysis, identifying the genes molecules involved, exploring other potentials. Additionally, assessing performance of...
Bacteria with lipolytic activity are widespread in the marine environment. These organisms can be used as a source of lipases unusual conditions such low temperatures and high salinities. characteristics allow them to applied several industrial processes products including wastewater treatment detergent production. In this context bacteria isolated from deep-sea sediments South Atlantic was evaluated. Among collection studied, two strains, Halomonas sulfidaeris LAMA 838 Marinobacter...
Marine toxicity tests using sea urchin embryos and larvae are characterized by physicochemical induction for the release of gametes adult organisms production excess gamic material after induction. Evaluating effects mortality that inducers cause on organisms, improvement in oocyte maintenance techniques subsequent use, actions interest conservation species sustainable use this type biological model. For study, adults Lytechinus variegatus Echinometra lucunter were obtained from field...
Three acidophilic bacteria were isolated from water and sediment samples collected at a coal mining-impacted river, Rio Sangão, located in the city of Criciúma, Santa Catarina state, south Brazil. These microorganisms acid media phylogenetic related to species Acidiphilium cryptum by its 16s rRNA gene sequences, although they differ this assimilation some carbon sources. The optimum maximum pH for growth all strains nearly 3.0 5.0-6.0, respectively. Two slightly more acidophilic, with...
During the last few decades, various organic micropollutants, including antibiotics, have been released into environment because of anthropogenic
O aproveitamento de organismos provenientes do bycatch é primordial na atividade pesqueira. Este fato está associado ao seu uso racional, mas acima tudo pela necessidade criar um destino favorável a estes recursos disponíveis em grandes quantidades. Para este último item, as medusas são ponto destaque já que ocorrem abundância todas modalidades da pesca. No entanto, apesar terem se tornado fontes proteínas colagenosas grande potencial, totalmente descartadas por não apresentarem interesse...