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Researchers from the Federal University of São Paulo used oysters and mussels as sentinel organisms to assess the presence of these pollutants. The results show that even the most restrictive sites for human presence have significant contamination. Despite being considered sanctuaries for biodiversity, Brazil’s marine protected areas (MPAs) are not immune to microplastic contamination. A recent study has shown that even MPAs classified as integral protection areas (APIs), which [...]

The most robust estimate ever made in the biome shows that hunting, predation by domestic dogs, livestock diseases and competition with wild boars are among the main anthropogenic influences. A group of Brazilian researchers has, for the first time in the entire Atlantic Rainforest, estimated the population density of the five deer species of the biome. This allowed them to measure the main factors that influence the number of deer per square kilometer (km²) in forest areas. The results [...]

Images taken from an unmanned aerial vehicle, processed with free software, help assess water stress parameters in corn experiments and select varieties that are better adapted to water shortages. A method using free software and a drone with a low-cost camera has made it possible to select drought-tolerant corn plants. The tool contributes to the selection of plants that can better withstand water stress, one of the impacts of climate change on agriculture. The results of the experiments [...]

An enzyme cloned from an insect found by Brazilian researchers – and genetically modified – makes it possible to monitor intracellular acidity and could be used to study diseases and drugs. The gene encoding an enzyme from a firefly, discovered at the Sorocaba campus of the Federal University of São Carlos (UFSCar) in Brazil, has given rise to a biosensor capable of detecting pH changes in mammalian cells – which could be useful, for example, in studying diseases and [...]

Fruit coated with the material developed by researchers at the University of São Paulo showed 11% less weight loss during storage and took longer to start becoming contaminated by fungi An edible biofilm, obtained from agricultural and fishing waste and developed by researchers at the São Carlos Institute of Chemistry of the University of São Paulo (IQSC-USP) in Brazil, allows the shelf life of strawberries (Fragaria x ananassa Duch.) to be extended. In laboratory [...]

In experiments conducted at the University of São Paulo, tumor stem cells became less able to proliferate and invade tissues when the production of the prion protein was blocked by gene editing; the results suggest that the molecule could be a therapeuti Glioblastoma (GBM), one of the most aggressive types of brain cancer, is one of the greatest challenges for medicine, both because it is difficult to treat and because of its high mortality rate. In Brazil, although no exact figures [...]

Agricultural fertilizers are critical for feeding the world’s population, restoring soil fertility and sustaining crops. Excessive and inefficient use of those resources can present an environmental threat, contaminating waterways and generating greenhouse gases such as nitrous oxide. Now, researchers reporting in ACS Agricultural Science & Technology have addressed those challenges with glass fertilizer beads. The beads control nutrient release, and the researchers say they’re [...]

Wie Gewitter und Pflanzen-Ausdünstungen Kondensationskeime erzeugen. Der Regenwald im Amazonas dünstet riesige Mengen von gasförmigem Isopren aus. Bislang galt, dass dieses Molekül nicht weit in der Atmosphäre verbreitet wird, da es unter Lichteinwirkung rasch zerfällt. Die Messkampagne CAFE-Brazil lieferte Daten für zwei Studien, die jetzt als Titelgeschichte der Zeitschrift Nature erscheinen und das anders sehen: Demnach transportieren nächtliche [...]

A recent study from the University of Würzburg unveiled a key enzyme involved in producing selenoproteins, opening new strategies for treating certain types of cancer in children. Selenoproteins are crucial for several biological functions, including the breakdown of harmful substances, immune system support, and regulating metabolic processes. However, in specific contexts, these proteins can be misused and shield cancer cells from death. One such protein, glutathione peroxidase 4 [...]