A5083711515- biodegradable polymer synthesis and properties
- Microbial Community Ecology and Physiology
- Microplastics and Plastic Pollution
- Genomics and Phylogenetic Studies
- Bacterial biofilms and quorum sensing
- Microbial Metabolic Engineering and Bioproduction
- Microbial bioremediation and biosurfactants
- Microbial Fuel Cells and Bioremediation
- Biofuel production and bioconversion
- Aquaculture disease management and microbiota
- Marine and coastal plant biology
- Avian ecology and behavior
- Wastewater Treatment and Nitrogen Removal
- Vibrio bacteria research studies
- Marine Biology and Ecology Research
- Biocrusts and Microbial Ecology
- Biochemical Analysis and Sensing Techniques
- Plant-Microbe Interactions and Immunity
- Enzyme Production and Characterization
- Microbial Metabolism and Applications
- Antimicrobial agents and applications
- Polar Research and Ecology
- melanin and skin pigmentation
- Bacterial Genetics and Biotechnology
- Wildlife Ecology and Conservation
University of Buenos Aires
2014-2024
Instituto de Química y Fisicoquímica Biológicas
2014-2024
Fundación Ciencias Exactas y Naturales
2014-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2013-2024
Institute of Astronomy and Space Physics
2016
Universidad Nacional de La Plata
2015
Universidad Central "Marta Abreu" de las Villas (UCLV)
2015
Higher Institute of Technologies and Applied Sciences
2005-2011
National Nuclear Energy Commission
2005
Instituto de Pesquisas Energéticas e Nucleares
2005
Abstract Tierra del Fuego, Argentina (55°S), receives increased solar ultraviolet‐B radiation (UV‐B) as a result of Antarctic stratospheric ozone depletion. We conducted field study to examine direct and indirect effects UV‐B on decomposition Gunnera magellanica , native perennial herb, the community decomposer organisms. In general, mostly occur due changes in chemical composition litter, whereas during from organisms and/or differences photochemical breakdown litter. designed...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 146:155-161 (1997) - doi:10.3354/meps146155 Spatial and temporal variations in nutrient limitation of seagrass Posidonia oceanica growth NW Mediterranean Alcoverro T, Romero J, Duarte CM, López NI The extent seasonality (L.) Delile Costa Brava littoral (NW Mediterranean) 5 meadows was investigated by means...
Temperature is one of the most important factors for bacterial growth and development. Cold environments are widely distributed on earth, psychrotolerant psychrophilic microorganisms have developed different adaptation strategies to cope with stress derived from low temperatures. Pseudomonas extremaustralis an Antarctic bacterium able grow under temperatures produce high amounts polyhydroxyalkanoates (PHAs). In this work, we analyzed genome-wide transcriptome by RNA deep-sequencing...
Mixotrophic protists combine photo-autotrophy and phago-heterotrophy. Even though only in oligotrophic systems mixotrophs overcome strictly autotrophs, they are represented all along the trophic spectrum. We hypothesize that lakes with different chlorophyll a (Chla) dissolved organic carbon (DOC) concentrations harbor assemblages of mixotrophs. examined composition 24 two Patagonian regions (Argentina), range conditions Chla DOC. The categorization predominant type nutrition each mixotroph...
The genus Coprothermobacter (initially named Thermobacteroides) is currently placed within the phylum Firmicutes. Early 16S rRNA gene based phylogenetic studies pointed out great differences between and other members of Firmicutes, revealing that it constitutes a new deep branching lineage. Over years, several on whole genome sequences have indicated very distant phylogenetically to all bacteria, supporting its placement in distinct deeply rooted novel phylum. In view this, we propose...
ABSTRACT Pseudomonas oleovorans GPo1 and its polyhydroxyalkanoic acid (PHA) depolymerization-minus mutant, GPo500 phaZ , residing in natural water microcosms, were utilized to asses the effect of PHA availability on survival resistance stress agents. The wild-type strain showed increased compared depolymerase-minus strain. appearance a round cellular shape, characteristic bacteria growing under starvation conditions, was delayed wild type comparison mutant Percent at end ethanol heat...
ABSTRACT Pseudomonas extremaustralis 14-3b presents genes involved in the synthesis of different polyhydroxyalkanoates, tolerance and degradation pollutants, microaerobic metabolism. Several genomic islands were detected. Genetic machinery could contribute to adaptability stressful conditions. This is first genome sequence reported from a isolated cold environments.
Pseudomonas extremaustralis produces mainly polyhydroxybutyrate (PHB), a short chain length polyhydroxyalkanoate (sclPHA) infrequently found in species. Previous studies with this strain demonstrated that PHB genes are located genomic island. In work, the analysis of genome P. revealed presence another cluster phbFPX, high similarity to belonging Burkholderiales, and also cluster, phaC1ZC2D, coding for medium PHA production (mclPHA). All mclPHA showed from species interestingly, natural...
Psychrotroph microorganisms have developed cellular mechanisms to cope with cold stress. Cell envelopes are key components for bacterial survival. Outer membrane is a constituent of Gram negative envelopes, consisting several components, such as lipopolysaccharides (LPS). In this work we investigated the relevance envelope characteristics adaptation in Antarctic bacterium Pseudomonas extremaustralis by analyzing mini Tn5 wapH mutant strain, encoding core LPS glycosyltransferase. Our results...