Background Microsatellite and mitochondrial markers are important tools for investigating natural populations, enabling the assessment of their diversity, genetic structure, kinship, parentage, and reproductive biology. Although the importance of such markers is widely recognized, their use in Neotropical mammals, especially marsupials, is still limited by the scarcity of species-specific loci characterized for extant species....

This study investigated whether long-term methylmercury exposure aggravates apical periodontitis in Wistar rats. Thirty-two male rats (90 days old) were randomized into four groups (n = 8): control, methylmercury, apical periodontitis, and methylmercury + apical periodontitis. Methylmercury was administered daily by intragastric gavage (0.04 mg/kg/day) for 60 days, while apical periodontitis was induced on day 32 by pulp expos...

Optimizing maize–Brachiaria intercropping requires effective weed management with selective maize herbicides. This study evaluated the spray performance and efficacy of atrazine + nicosulfuron for weed management in maize–Brachiaria intercropping, focusing on how droplet classes and spray volumes affect maize growth and yield. The deposition experiment was conducted in a greenhouse in a completely randomized design with six re...

Aim We investigate the distribution of dispersal modes — endozoochory (via animal ingestion), synzoochory (via animal seed accumulation) and anemochory (via wind)—and seed mass of woody plants across Brazilian ecosystems, testing whether their relative abundance in local plant communities could be predicted by climate, edaphic factors and dispersal agents (e.g., the main vectors moving seeds). We expected climate to be the mai...

Methylmercury (MeHg) contamination can cause damage to the salivary glands, which is associated with oxidative stress and glandular dysfunction. Açaí ( Euterpe oleracea Martius), a fruit rich in antioxidants, emerges as a natural alternative to mitigate the toxic effects of MeHg. This study aimed to evaluate whether clarified açaí juice exerts a protective effect on the major salivary glands of rats intoxicated with MeHg. Wist...

Leishmaniases are neglected diseases widely distributed in tropical and subtropical countries, caused by parasites of the Leishmania genus. Current therapy includes pentavalent antimonial and amphotericin B, but adverse effects persist. The development of a new, more selective, and less toxic combination therapy is therefore a rational and promising approach. In this study, we report the effects of combinations of the monoterp...

Over the past decade, the Brazilian electricity sector has undergone a profound transformation, driven by the large-scale deployment of wind and solar photovoltaic power plants, a trend that is expected to continue in the years ahead. Although the transition to these variable renewable energy resources helps to reduce greenhouse gas emissions and mitigate the climate crisis, they are vulnerable to the very climate changes they...

The Cerrado biome, spanning ~2 million km 2 , is one of the most extensive and biodiverse tropical savannas, yet it is paradoxically dominated by only 30 hyperdominant tree species (~2% of all species, > 50% of all stems). However, their vulnerability to climate change and the effectiveness of current conservation efforts remain uncertain. By combining (i) species distribution models calibrated with edaphic‐climatic predictors...