A5102800451- Plant Pathogens and Fungal Diseases
- Mycorrhizal Fungi and Plant Interactions
- Microbial Metabolic Engineering and Bioproduction
- Enzyme Catalysis and Immobilization
- Biocrusts and Microbial Ecology
- Polysaccharides Composition and Applications
- Phytochemical compounds biological activities
- Mycotoxins in Agriculture and Food
- Lipid metabolism and biosynthesis
- Microbial Community Ecology and Physiology
- Ecology and biodiversity studies
- Plant and fungal interactions
- Building materials and conservation
- Fermentation and Sensory Analysis
- Genomics and Phylogenetic Studies
- Polar Research and Ecology
- Archaeology and Natural History
- Enzyme Production and Characterization
- Pineapple and bromelain studies
- Horticultural and Viticultural Research
- Bone Tissue Engineering Materials
- Environmental and Cultural Studies in Latin America and Beyond
- Lichen and fungal ecology
- Gut microbiota and health
- Indigenous Studies and Ecology
Universidad Nacional de La Plata
2001-2022
Cornell University
2011
Comisión de Investigaciones Científicas
2011
Instituto de Fisiología Vegetal
1993-2003
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...
Two new species, Koorchaloma scutiae and Ciliochorella buxifoliae , isolated from leaf litter of Scutia buxifolia forest are described, illustrated, discussed, compared with similar species. The specimens were collected in Magdalena, Buenos Aires province, Argentina. type deposited LPS. Keys provided to all species both genera.
Abstract α ‐L‐Rhamnosidases (EC 3.2.1.40) and β ‐D‐glucosidases 3.2.1.21) obtained from several microbial sources are potential catalysts in food, beverage, pharmaceutical industries. However, the enzyme preparations currently used have limitations related to stability activity of as well their reuse. A microtiter screening was carried out 55 fungal strains isolated alkaline soils, obtain active ‐L‐rhamnosidases at pH 9.0. While ‐L‐rhamnosidase detected 45% tested, ‐D‐glucosidase found only...
Lipids and their fatty acids were characterized quantified during the development of arbuscular mycorrhizal fungus Glomus versiforme in roots alfalfa (Medicago sativa). A net increase root total lipids was observed proportional to colonization. Triacylglycerols main lipid class colonized appear have been synthesized by fungi. The palmitoleic acid (characteristic triacylglycerols from fungus) with G. reinforced this suggestion. Phosphatidylethanolamine a minor extent phosphatidylcholine also...
Se estudió la micobiota alcalofílica y alcalinotolerante de suelos los intercordones del bosque nativo Celtis tala Scutia buxifolia en el Partido Magdalena, provincia Buenos Aires, Argentina. Los aislamientos geohongos se realizaron agar extracto malta rangos pH desde 5 hasta 11, ajustados mediante diferentes concentraciones sales sódicas.Se aislaron e identificaron 43 taxa fúngicos. El 50% no fueron capaces crecer a 10 siendo asignados categoría alcalofóbicos. 93% alcalino-tolerantes dado...
Abstract The lipolytic activity of free and immobilized whole cells the pathogenic fungus Phoma glomerata was demonstrated, several properties lipase involved were determined. Free fungal small pieces cells, prepared by spontaneous colonization on a solid surface or entrapped in calcium alginate, incubated with triolein buffered medium. Different incubation conditions assayed to optimize reaction, determine effects heating time stability preparations course reactions. Although enzyme cleaves...
Se investigó la variación de micota saprotrofa suelos contaminados con hidrocarburos y testigos. El número propágulos fúngicos en los fue mucho menor que el testigo. Aspergillusfoetidus A. niger fueron muy afectados por contaminación. Cylindrocarpon didymum,Fusarium solani Penicillium restrictum mantuvieron sus frecuencias parcela contaminada relación a latestigo. thomii (en profundidad). Talaroroyces helicus T. rotundus tuvieron más altas testigo.Rhizoctonia sp. superficie) Trichoderma...
This study analysed the mycobiota on exoskeleton debris of crab Neohelice granulata collected from an alkaline salt marsh and assessed in vitro enzyme ability selected isolates at different temperatures pH. Exoskeleton fragments were incubated moist chambers paper agar medium. Growth fungi also evaluated media with 0.5 % casein, 1% Tween®20, Chitin-Azure® by production a halo/growth ratio. We identified 22 fungal species using both methods. Since two isolation methods added information to...