Background Staphylococcus nepalensis is an emerging species first described in 2003 from the respiratory tract of goats in Nepal. We report the identification of S. nepalensis of a hypersaline lagoon in Brazil, along with in-depth phylogeographical and resistome analysis of publicly available genomes. Methods and results During a local survey from hypersaline aquatic environments in Rio de Janeiro, Brazil, two staphylococcal s...

Understanding the genetic regulation underlying host–microbiota interactions is key to elucidating how microbial communities influence host metabolism, immunity, and physiology. In this context, the main objective of this study was to integrate genomic, transcriptomic, and microbial data to identify shared regulatory variants, highlight key microbial taxa, and prioritize biological pathways related to lipid metabolism, immune...

Lactating ewes exhibit markedly increased nutritional requirements, and inadequate nutrient supply may impair lactogenesis, leading to reduced milk yield, restricted lamb growth, and substantial losses in productive efficiency. We aimed to evaluate the effects of ewe supplementation at 0.5 and 1.0% BW on the productive performance and gastrointestinal parasitism of lambs maintained on mowed and unmowed Urochloa brizantha cv. M...

This study evaluated early weaning (EW) versus conventional weaning (CW) and dam parity (DP) effects on carcass traits, meat quality, and the muscle metabolome of male offspring exposed in utero during the intervention. A randomized complete-block design with a 2 × 2 factorial arrangement compared weaning strategies (WS: EW at 150 d lactation/80 d gestation vs. CW at 240 d lactation/170 d gestation) and dam parities (DP: multi...

Length-weight relationships (LWRs) are widely used in fisheries biology to describe growth patterns, estimate biomass, and provide essential information for stock assessment and fisheries management. This study estimated the LWR parameters of fish species captured as bycatch in shrimp trawl fisheries along the coast of Sergipe, northeastern Brazil. Samples were collected monthly from January to December 2020 from vessels opera...

Early yield estimation is essential for agricultural planning, localized management and decision-making in commercial areas, especially in view of the high spatial variability of sugarcane fields. However, traditional estimation methods are generally destructive, costly, and inefficient in accounting for this variability. In this context, the integration of remote sensing data, soil attributes and machine learning techniques p...

Methylmalonic acidemia is an inherited neurometabolic disorder characterized by accumulation of methylmalonic acid (MMA) in different tissues, particularly in the brain. As a result, patients frequently exhibit progressive neurological deterioration, accompanied by episodes of acute encephalopathy following metabolic decompensation. Astrocytes are glial cells that maintain the central nervous system homeostasis and may be impo...

This study aimed to enhance surfactin production in Bacillus subtilis by replacing the native promoter of the surfactin synthase operon (P srfA ) with the strong IPTG-inducible promoter Pgrac to address challenges in large-scale biosurfactant production. The engineered strain was developed through homologous recombination, creating an integration cassette fused via overlap extension PCR and transformed into B. subtilis RI4914....

Mimosa L. comprises approximately 620 species of socioeconomic and environmental importance, with about half occurring in the Brazilian Cerrado. Despite this diversity, cytogenetic studies in the genus remain limited, with most restricted to chromosome counts. We investigated 11 populations of seven Mimosa species, focusing on the heterochromatin distribution (CMA + bands), and nuclear DNA content. Polysomaty was observed in r...

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...