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Mostrando ítems 281-290 de 295
A Reconstructed Subaerial Hot Spring Field in the ∼3.5 Billion-Year-Old Dresser Formation, North Pole Dome, Pilbara Craton, Western Australia
(Mary Ann Liebert, 2021-01)
Recent discoveries of geyserite and siliceous sinter with textural biosignatures in the ∼3.5 Ga Dresser Formation of the Pilbara Craton, Western Australia, extended the record of inhabited subaerial hot springs on Earth ...
Potential Use of a Poultry Manure Digestate as a Biofertiliser: Evaluation of Soil Properties and Lactuca sativa Growth
(Science Press, 2019-02)
Anaerobic digestion is a process that is widely used for the treatment of organic wastes. The digestate can be used as a soil amendment or crop fertiliser. The aims of our work were to evaluate 1) the physicochemical ...
Plant litter decomposition in a semi-arid rangeland of Argentina: species and defoliation effects
(Australian Rangeland Society, 2019-09)
Plant litter decomposition is critical for terrestrial ecosystem productivity. Poa ligularis Nees ex Steud and Nassella tenuis (Phil.) Barkworth are native, desirable perennial grasses in central Argentina’s rangelands. ...
Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications
(Frontiers Media S.A., 2020-07)
The Southern Ocean plays a critical role in regulating global climate as a major sink for atmospheric carbon dioxide (CO2), and in global ocean biogeochemistry by supplying nutrients to the global thermocline, thereby ...
The Pseudomonas aeruginosa biofilm matrix and cells are drastically impacted by gas discharge plasma treatment: A comprehensive model explaining plasma-mediated biofilm eradication
(Public Library of Science, 2019-06)
Biofilms are microbial communities encased in a protective matrix composed of exopolymeric substances including exopolysaccharides, proteins, lipids, and extracellular DNA. Biofilms cause undesirable effects such as ...
The relative contributions of diet and associated microbiota to the accumulation of UV-absorbing mycosporine-like amino acids in the freshwater copepod Boeckella antiqua
(Wiley Blackwell Publishing, Inc, 2012-05)
1. Mycosporine-like amino acids (MAAs) are ubiquitous compounds in aquatic organisms that are usually considered sunscreens that protect them from harmful ultraviolet radiation. Given that virtually all animals lack the ...
Effects of climate and atmospheric nitrogen deposition on early to mid-term stage litter decomposition across biomes
(Frontiers Media, 2021-07)
Litter decomposition is a key process for carbon and nutrient cycling in terrestrial ecosystems and is mainly controlled by environmental conditions, substrate quantity and quality as well as microbial community abundance ...
Diversidad de cianobacterias en costras biológicas de suelo de la ecorregión del Monte Central (Mendoza, Argentina)Diversity of cyanobacteria in biological soil crusts of Monte Central ecoregion (Mendoza, Argentina)
(Fundación Miguel Lillo, 2018-12)
La ecorregión del Monte Central posee un elevado déficit hídrico. La escasez y variabilidad del recurso agua condiciona la distribución espacial de las plantas vasculares. Aquellas zonas desprovistas de vegetación se ...
Influencia de factores edafo/climáticos sobre poblaciones microbianas de suelos áridos con agricultura bajo riego
(Universidad Nacional del Comahue, 2021-12-28)
El objetivo de este trabajo exploratorio fue evaluar el efecto de las prácticas agrícolas a largo plazo (30 años) sobre la actividad y los aspectos estructurales de la comunidad microbiana de los suelos áridos con agricultura ...
Biocontrol of Botrytis cinerea in table grapes by non-pathogenic indigenous Saccharomyces cerevisiae yeasts isolated from viticultural environments in Argentina
(Elsevier, 2012-02)
Botrytis cinerea, the causal agent of gray mold, is an important disease of grapes. Yeasts are members of the epiphytic microbial community on surfaces of fruits and vegetables and because some yeasts inhibit fungi they ...