Characterizing functional morphology and trophic niches in a neotropical Characiforms (Actinopterygii: Teleostei) assemblage in middle Munim River basin, Maranh ão, Brazil
This study underscores the influence of species' natural history on their ecological characteristics, contributing to more effective conservation strategies.PMID:38422299 | DOI:10.1590/1519-6984.279881 (Source: Braz J Biol)
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: E S Oliveira J South E C Guimar ães L O Vieira D S Campos F P Ottoni Source Type: research
Yield of white clover and orchard grass cultivated in mining passives adding black earth and compost as a substrate
The objective of the present study was to determine the yield of white clover (Trifolium repens) and orchard grass (Dactylis glomerata) cultivated in mining environmental passives adding black earth and compost as a substrate in the Buenaventura Julcani Huancavelica Company. The treatments were the combinations: 4: 3.1: 3.1: 3:1.1 kg of RP: RP, TN: RP, C: RP, TN, C respectively. They were distributed in four treatments with twelve experimental units for each species of leguminous and gramineous grass, we worked according to the completely randomized design (DCA) with a 2 x 4 factorial arrangement, the experimental unit bei...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: R Yaulilahua-Huacho W H Salas-Contreras L A Sumarriva-Bustinza E Rojas-Felipe J L Contreras-Fern ández P A Palomino-Pastrana C Due ñas-Jurado J C Ayuque-Rojas Manuel Castrej ón Valdez F O Areche G A Cosco-Salguero Source Type: research
Chemical profile and biological potential of essential oil of Psidium bahianum Landrum & amp; Funch (Myrtaceae)
Braz J Biol. 2024 Feb 26;84:e280487. doi: 10.1590/1519-6984.28048. eCollection 2024.ABSTRACTThe genus Psidium, belonging to the family Myrtaceae, encompasses several plant species rich in essential oils. Several studies involving different research areas have shown promising results for essential oils, which has attracted interest from diverse sectors, including pharmaceutical, food, and cosmetic industries. Thus, the objective of this study was to evaluate the biological activity of the essential oil extracted from Psidium bahianum leaves (EOPb) collected in an Atlantic Forest remnant in the northern coast of the state of...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: O L J Souza R S Souza E J Marques M C Silva H V M Boness V L C Vale Source Type: research
Properties of Pasteurella multocida isolated from animals during the seasonal migration of saigas
Braz J Biol. 2024 Feb 26;84:e280780. doi: 10.1590/1519-6984.280780. eCollection 2024.ABSTRACTThe paper describes data from the study of cultural, morphological, and biochemical properties and the pathogenicity and virulence of epizootic isolates of Pasteurella multocida obtained from cattle and saigas. The study aimed to investigate the properties of P. multocida isolated from saigas and cattle during their seasonal migration, with a focus on its role in the epizootic process and potential transmission to farm animals. The research was conducted in a laboratory setting at the West Kazakhstan Agrarian-Technical University. ...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: U Taubaev A Ichshanova Zh Kirkimbaeva B Radojicic K Murzabayev S Bayantassova F Zakirova B Yertleuova Source Type: research
In vitro investigation on Pennisetum purpureum leaf extracts grown in Indonesia of phytochemical components, optical characteristics, and antioxidant-antibacterial activities
Braz J Biol. 2024 Feb 26;84:e280855. doi: 10.1590/1519-6984.280855. eCollection 2024.ABSTRACTMedicinal plants hold significant cultural significance and play a crucial role in the advancement of potentially safe drugs for the therapy of disease worldwide. Pennisetum purpureum or elephant grass has been used for traditional medications in Indonesia without understanding the phytochemicals of those plants. Herein, our report revolves around the qualitative and quantitative examination of phytochemical components, optical properties, antioxidants, and antibacterial assessments of solvent fractions derived from Pennisetum purp...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: M Budiyanto S Puspitarini S Prasetyo H Subekti Y S Birhan A Qosyim F B Ilhami Source Type: research
Floristic survey of aquatic macrophytes in eastern Maranh ão, Brazil: richness, biological forms and three new records
Braz J Biol. 2024 Feb 26;84:e281276. doi: 10.1590/1519-6984.281276. eCollection 2024.ABSTRACTThe aim of this study was to carry out a floristic survey of aquatic macrophytes in the municipality of Chapadinha, eastern Maranhão, and classify their biological forms. The study was done between September 2021 and September 2022. A total of 31 families, 49 genera and 72 species of aquatic macrophytes were catalogued, of which 65 are angiosperms. Among them, Bacopa stricta (Plantaginaceae), Staurogyne diantheroides (Acanthaceae), and Xanthosoma aristeguietae (Araceae) are new records for the flora of Maranhão, with the last two...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: M C A Pestana R C Hora E A E Guar çoni Source Type: research
Thielaviopsis paradoxa and cultivable mycobiota associated with carapace of Rhynchophorus palmarum L. (Coleoptera: Curculionidae) in the state of Alagoas, Brazil
Braz J Biol. 2024 Feb 23;83:e275755. doi: 10.1590/1519-6984.275755. eCollection 2024.ABSTRACTRhynchophorus palmarum (Coleoptera: Curculionidae) is a significant agricultural pest in palm plantations across tropical America, playing a critical role as a vector of the fungus Thielaviopsis paradoxa, which is the causative agent of stem bleeding disease in coconut palms. This disease has raised concerns due to its rapid spread and subsequent reduction in coconut production in northeastern Brazil. Additionally, this insect can establish mutualistic interactions with various fungi, including saprophytic, phytopathogenic, and ent...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: R J N Calumby L M Almeida J L L Eliziario C B Dornelas V Alvino L A M Grillo Source Type: research
Amazonian fermentations: an analysis of industrial and social technology as tools for the development of bioeconomy in the region
Braz J Biol. 2024 Feb 23;83:e276493. doi: 10.1590/1519-6984.276493. eCollection 2024.ABSTRACTThis review article explores the potential of fermentations in the Amazon region as catalysts for economic and social development. It highlights the rich cultural and gastronomic diversity of the Amazon, focusing on indigenous fermented products. Two main products, tucupi and caxiri, are discussed in detail, emphasizing their significance in local cuisine and culture. The review examines the challenges and opportunities for industrial applications of these products, as well as their potential for social technology initiatives, part...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: N S O Sousa E S Souza E S M Canto J P A Silva L M Carneiro J F O Franco-de-S á J V B Souza Source Type: research
Potential of coffee straw biochal as a substrate conditioner in seed lettuce and sorghum germination and vigority
In this study, the effect of adding coffee straw biochar on the physiological quality of lettuce and sorghum seeds was investigated. Thus, the objective of this work was to study the effect of adding different concentrations of coffee biochar in the substrate composition on the physiological quality of lettuce (Lactuca sativa) and sorghum (Sorghum bicolor) seeds. The experimental design used was completely randomized, with five concentrations of biochar (0; 7.5; 15; 30 and 60%), conducted with four replications of 25 seeds. The use of biochar in the concentrations studied does not provide an increase in the average germina...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: R D Alixandre P A M Lima T F R Almeida J S Oliveira M B Pereira F T Alixandre G R L Jacomino R S Dias R S Alexandre A Ferreira R R Passos J C Lopes Source Type: research
Reduction of cost and emissions by using recycling and waste management system
Braz J Biol. 2024 Feb 23;83:e279565. doi: 10.1590/1519-6984.279565. eCollection 2024.ABSTRACTIn order to evaluate the level of sustainability of an integrated waste management system (IWMS), it is necessary to analyze the impact criteria. Therefore, the purpose of this study is to provide a model for IWMS optimization with the two goals of minimizing the cost and the emission of greenhouse gases of the entire system. Environmental and health problems caused by the lack of proper waste management include the increase in disease, increase in stray animals, pollution of air, water, land, etc. Therefore, it is very important t...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: L S Ani L Budovich N S Klunko G U Jumanazarova K Nasurova K Asatullaev Source Type: research
Level function levels and oxidative stress markers in patients with multidrug-resistant tuberculosis in the Brazilian Amazon
This study aimed to correlate the values of liver markers with oxidative stress markers in patients with multidrug-resistant tuberculosis in the Brazilian Amazon. A total of 30 patients from the Tuberculosis clinic of a referral hospital were admitted to the study. Whole blood samples were collected for analysis of liver enzyme values and oxidative stress markers by spectrophotometry. The prevalence was male (60%) and the 18-29 age group was the most affected. Patients with multidrug-resistant tuberculosis presented catalase values with a median equal to 6.94 U/gHb and for glutathione, the median was equal to 14.76 µg∕m...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: C A Sales M C F Pinto-Silva J G Bard ález-Rivera C A Abreu-Alberio L W P Sena J L F Vieira Source Type: research
Production of a Ric c3 hypo-allergen with no IgE binding or anaphylactogenic activity
This study aimed to determine the effect of mutations in Ric c3 amino acid residues known to affect IgE binding and allergy challenges. Based on the Ric c3 structure, B-cell epitopes, and amino acid involved in IgE binding, we produce recombinant mutant protein, mrRic c3, secreted from E. coli. Strategic glutamic acid residues in IgE-biding regions were changed by Leucine. The allergenicity of mrRic c3 was evaluated by determination of IgE, IgG1, and total IgG in immunized Balb/c mice and by degranulation assays of mast cells isolated from Wistar rats. The mrRic c3 presented a percentage of mast cell degranulation close to...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: M G B Bartholazzi T M Lodi E S Mello A O Carvalho B C B Beir ão O L T Machado Source Type: research
Population dynamics of Achatina fulica in a peri-urban area adjacent to the Fiocruz Atlantic Forest Biological Station (EFMA), in Rio de Janeiro, Brazil, with report on Angiostrongylus cantonensis infection
Braz J Biol. 2024 Feb 26;83:e274620. doi: 10.1590/1519-6984.274620. eCollection 2024.ABSTRACTAchatina fulica is a species native to East Africa, considered one of the 100 worst invasive alien species in the world. The present study investigated the population of the snail, A. fulica, in a peri-urban area adjacent to the Fiocruz Atlantic Forest Biological Station (EFMA), in Jacarepaguá, Rio de Janeiro state, Brazil, focusing on population dynamics and the nematodes associated with this species. To this end, specimens were collected during four climatic seasons of the years 2021 and 2022 in three fixed 20 m × 10 m plots. T...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: F C S Rangel S R Gomes G M Silva A K P Sousa J Ramos de-Souza S C Thiengo Source Type: research
Microorganisms causing vulvovaginitis: analysis of 1,688 cervicovaginal cytology
Braz J Biol. 2024 Feb 26;83:e275237. doi: 10.1590/1519-6984.275237. eCollection 2024.NO ABSTRACTPMID:38422261 | DOI:10.1590/1519-6984.275237 (Source: Braz J Biol)
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: E B C Pereira C N Carvalho A P M Carvalho Neto A C S de Omena P K A Magalh ães M G S Cavalcanti G C Ferreira J únior J G Costa B C de Omena A C Silva J M S Santos T J M Rocha Source Type: research
Brycon hilarii produced in hapas: effects in allometric growth
This study aimed to determine the growth patterns of juvenile piraputangas (Brycon hilarii) produced in hapas within an excavated pond. The piraputangas were anesthetized and micro-chipped and their biometric characteristics were measured. Subsequently, the fish were distributed in six hapas of eight m3 at the density of 20 fish/hapa, totaling 120 animals. During the experimental period six months, the fish were fed twice (5% of the biomass) a day. Every 30 days, all fish were sampled to measure the biometric characteristics of body weight (g); standard length; total length; head height; head length; body height and body w...
Source: Braz J Biol - February 29, 2024 Category: Biology Authors: F C Oliveira R A C Corr êa-Filho R M G Acunha J A Povh A L J Ferraz C M Campos Source Type: research
