Leptopanchax itanhaensis is a critically endangered annual killifish endemic to temporary aquatic habitats of the Atlantic Forest in southeastern Brazil, yet its biology and ecology remain poorly known. Here, we provide preliminary natural history data based on a 14-month monitoring effort in the Preto River sub-basin, the only region where the species is currently known to occur. We monitored one temporary pool and two roadsi...

The early intestinal response of Mugil cephalus to fishmeal replacement with alternative protein sources under biofloc technology (BFT) was assessed. Juvenile mullet (82.68 ± 0.05 g) were distributed among three dietary treatments with decreasing fishmeal inclusion levels of 15%, 5%, and 0%, corresponding to FM15, FM5, and FM0, respectively. After 27 days of feeding, intestinal samples were analyzed for microbiota composition,...

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...

Purpose of review Zika virus (ZIKV) is a mosquito-borne flavivirus, most prevalent in tropical areas. ZIKV rose to prominence during 2015–2016 due to an outbreak in the Americas leading to the recognition of adverse outcomes with infection during pregnancy. This review highlights the advances of research a decade after this epidemic. Recent Findings During the last decade the epidemiology of ZIKV evolved with the incidence dec...

The subfamily Detarioideae stands out among legumes as a clade with diverse floral morphology. Within it, the seven genera of the Brownea clade exhibit significant variability, especially in the merism of corolla and androecium, inflorescence architecture, and pollination strategies. This study aims to expand the understanding of the morphology and development of inflorescences and flowers of six species within the clade: Brow...

Boswellia serrata is a medicinal plant traditionally used to treat inflammatory conditions and this study aimed to evaluate the efficacy of B. serrata dry extract (BSDE) in treating gastric ulcers and ulcerative colitis. Chronic gastric ulcers were induced using 80% acetic acid. For seven days, rats were given oral doses of BSDE (30, 100, or 300 mg/kg), omeprazole (40 mg/kg), or vehicle. Ulcer area, mucin content, and biochemi...

Soil microbiomes are critical for ecosystem functioning, yet the global influences of climate and agricultural practices on their diversity and structure remain incompletely characterized. Here we analyzed 1921 soil samples from 33 countries worldwide across diverse biomes to assess how climate gradients and agricultural inputs, including pesticides and fertilizers, shape prokaryotic and fungal communities. We found that micro...

Age is a well-known risk factor to develop severe viral respiratory infections, including severe COVID-19. This study aimed to identify the biological alterations linked to severe disease in elderly patients with COVID-19. For this purpose, we employed a derivation cohort with 450 SARS-CoV-2 infected and unvaccinated patients admitted to hospital wards and a validation cohort with 244 SARS-CoV-2 infected and unvaccinated patie...