30 articles in this issue
José Ariévilo Gurgel Rodrigues, Norma Maria Barros Benevides, Ana Maria Freire Tovar, Paulo Antônio de Souza Mourão (Autor)
Caulerpa cupressoides produces sulfated polysaccharides (Cc-SPs) with serpin-dependent anticoagulant effect, but their actions on thrombin generation (TG) are unknown. This study aimed to partially characterize Cc-SPs and examine their potential as modula... see more
Mariana Machado Lima, Lorena Gimenes da Silva, Jailson Araújo Dantas, Ciomar Aparecida Bersani Amado, Miguel Spack Junior, Jacqueline Nelisis Zanoni (Autor)
The aim the study was to evaluate the effects of autohemotransfusion in adjuvant-induced arthritis model by injections of high and low doses of Complete Freund´s Adjuvant (CFA). Male Holtzman rats (200-230g) were distributed in six groups: control (... see more
João Carlos Ferreira Melo Júnior, Maria Regina Torres Boeger, Rosy Mary dos Santos Isaias, Igor Abba Arriola, Luciano Lorenzi, Denise Monique Dubet da Silva Mouga, Celso Voos Vieira (Autor)
The complexity of nutrient distribution patterns in soils is a determinant environmental component of the structure of plant communities. Numerous insect species that interact with plants are associated with these communities, and some of these interactio... see more
Eliane da Silva Fernandes, Guilherme Pomaro Casali, Ricardo Massato Takemoto (Autor)
Species richness and composition are central themes in community ecology of helminths because they improve the understanding of factors that determine community structure. Floodplain ecosystems and the environmental alterations induced by hydrological cyc... see more
Francisco Gerson Araujo, Iracema David Gomes, Aparecida Alves do Nascimento, Marcos Antonio José dos Santos, Armando Sales (Autor)
We described liver tissues of the long-whiskered catfish Pimelodus maculatus using histological techniques through structures stained with hematoxylin and eosin. The main aim was characterize the tissues and eventual changes, since this organ has a notabl... see more
Denise Alvarenga Rocha, Estela de Rezende Queiroz, Lucimara Nazaré Silva Botelho, Rodrigo Martins Fráguas, Cláudia Mendes dos Santos, Celeste Maria Patto Abreu, Raimundo Vicente de Sousa (Autor)
The pineapple is a fruit that has wide acceptance worldwide both in natural form, as industrialized. Your peel is a residue generated by food industries and from this residue can obtain a protein extract which is a good source of bromelain. This study aim... see more
Isabela da Silva Vasconcelos Rodrigues, Carolina Goes Silva e Silva, Rafael Salomão da Silva, Silvio Santana Dolabella, Marcelo Ferreira Fernandes, Roberta Pereira Miranda Fernandes (Autor)
In this study, two hundred fifty-seven bacterial isolates from a suppressive soil library were screened to study their secretion of alkali-thermostable xylanases for potential use in cellulose pulp biobleaching. Xylanase activity was evaluated in solid an... see more
Raquel Stefanello, Bruna Boucinha Viana, Luiz Augusto Salles das Neves (Autor)
In recent years, there has been a growing concern related to soil and water contamination due to the constant dispersal of toxic metals. In addition to their ecotoxicological potential, these elements exhibit a cumulative character that favors their perma... see more
Messulan Rodrigues Meira, Ernane Ronie Martins, Luciane Vilela Resende (Autor)
Lippia rotundifolia is an aromatic species, endemic from Campos rupestres and isolated by mountains. We aimed with the research to study the genetic variability of chá-de-pedestre (Lippia rotundifolia Cham.) with natural occurrence in ten places of the St... see more
Josefa Claudineide Sousa Pereira, Rafael Junior Passador, Raimundo Nonato Gomes Mendes-Júnior, Marcos Tavares-Dias (Autor)
This study compared the parasites fauna of Hyphessobrycon takasei and H. amapaensis from hydrographic basins in Amapá state, Brazil. Of the 42 H. takasei examined, 95.2% were parasitized by one or more species such as Dactylogyridae gen. sp., encysted met... see more
Camila Ester Hollas, Ticiane Sauer Pokrywiecki, Naimara Vieira do Prado, Angélica Chini, Elisângela Düsman, Priscila Soraia da Conceição (Autor)
Underground and surface water as a result of human activity are increasingly polluted. Mainly due to improper disposal of waste, discharge of effluents, among other actions that compromise the environment. The water analysis is necessary to determine and ... see more
Marília Shibata, Cileide Maria Medeiros Coelho, Eder Carlos Schmidt, Zenilda Laurita Bouzon, José Marcello Salabert de Campos, Marcelo Maraschin (Autor)
This study aimed at assessing the cell cycle, and anatomical and biochemical changes that the embryonic axis of Araucaria angustifolia undergoes during development, focusing on the maturation stage. During all development, cells exhibited intense metaboli... see more
Luiz Sodré Neto, Mirna Helena Regali-Seleghim, Magnólia Fernandes Florêncio de Araújo, Carlos Alfredo Galindo Blaha (Autor)
Thousands of people living in semi-arid regions face problems of drought and loss of water quality. In addition, high incidence of acute diarrheal diseases related to water consumption has been responsible for a high number of deaths and high economic cos... see more
Bruna Delgado Góes, Eduardo Augusto Ruas, Lucas Milanez Benício, Daniele Cassiano, Felipe Pinheiro de Souza, Paulo Maurício Ruas (Autor)
Campomanesia xanthocarpa is a native tree, of common occurrence in almost all Brazilian Forest formations, which has its fruits and timber with high commercial value. Using an enriched genomic library we isolated and characterized microsatellite loci for ... see more
Felipe Vieira Camerini, Carlo do Amaral Chanin, Carina Molins Borba, Jorge Alberto Vieira Costa, Carlos André Veiga Burkert, Janaína Fernandes de Medeiros Burkert (Autor)
Biosurfactant are surface active compounds with emulsifying capacity and are produced by microorganisms, and they may be affected by factors related to microbial cultivation, such as pH, salinity, incubation time, carbon and nitrogen sources. The aim of t... see more
João Everthon da Silva Ribeiro, Ester dos Santos Coêlho, Francisco Romário Andrade Figueiredo, Walter Esfrain Pereira, Manoel Bandeira de Albuquerque (Autor)
Determining leaf area is important for studies involving plant growth and development. The aim of the present study was to obtain models for estimating leaf area of Psychotria carthagenensis and Psychotria hoffmannseggiana using linear measurements of lea... see more
Ana Lucia Vardiero Ribeiro, Simone Aquino, Maria Solange Francos, Rafael Golin Galvão (Autor)
The National Plan for Solid Waste has set out to reduce by 25% the amount of organic waste disposed of in landfills, mostly food residues from street fairs, besides determining the implementation of municipal composting plants, and it also mentions improv... see more
Tayssa Santos Gondim, Roberto Guimarães Pereira, Sorele Batista Fiaux (Autor)
Biodiesel production has been increasing yearly in Brazil. A large amount of glycerin is generated in this process and needs a correct destination. One possible use of this glycerin in crude form is in biotechnological processes. Xanthan gum is a commerci... see more
Nathália Cristina Gonzalez Ribeiro, Débora de Mello Gonçales Sant'Ana (Autor)
The Insecta Class is the most diverse group of animals on the planet. A big part of this composition is available in the collections of Natural History Museums, being essential for researches and diffusion actions involving a specialized and lay public. T... see more
Thaís Dalzochio, Otto Henrique Nienov, Clovis Wannmacher, Daiane Bolzan Berlese, Luciane Rosa Feksa (Autor)
Type 1 diabetes (T1D) is an autoimmune disease characterized by the selective destruction of pancreatic beta cells. In addition to genetic factors, enteroviruses have been considered the main environmental factor involved in this pathology. Therefore, the... see more
Aline Belem Machado, Juliana Foresti Caprara, Itiane Diehl de Franceschi, Rafael Linden, Daiane Bolzan Berlese, Luciane Rosa Feksa (Autor)
Hexavalent chromium [Cr (VI)] is a metal utilized in different industries and consequently disposed in the environment. It is a toxic substance and its reduction to trivalent Cr [Cr (III)] generates intermediates, which are responsible for the oxidation o... see more
Monica Bueno Jorge, Maria José Alencar Vilela, Yzel Rondon Suarez, Sidnei Eduardo Lima Junior (Autor)
Changes in diet of Laetacara araguaiae Ottoni and Costa, 2009 were evaluated in the Sucuriú River (Upper Paraná basin, Brazil) in an area with a small hydroelectric power plant, both before and after the formation of the reservoir, in order to answer: Did... see more
Karina Guollo, Américo Wagner Junior, Carlos Kosera Neto, Adriana Dallago, Rayana Stival Svidzinski, Juliana Cristina Radaelli (Autor)
Studies related to floral biology are essential for the understanding of the ecological relations between different species, and the beginning of breeding programs. In this way, the aim of the study was to elucidate aspects of floral and reproductive biol... see more
Fernanda Cristina Nascimento, Carlos Henrique Barbosa Santos, Saveetha Kandasamy, Everlon Cid Rigobelo (Autor)
The present work aimed to evaluate the effects of encapsulated microorganisms on seedlings of Eugenia stipitata, popularly known as araçá-boi, to evaluate the interaction between the inoculum and encapsulating agents such as clay and alginate. The experim... see more
Thiago Scremin Boscolo Pereira, André Del Arco, Patrícia Hoffmann, Vanessa Belentani Marques (Autor)
Descriptive studies of the fish digestive system are fundamental because they provide information on the biology of the species. Thus, the objective of this study was to morphologically describe the digestive system of the pufferfish, Chilomycterus spinos... see more
Luís Flávio Souza de Oliveira, Miriam Staudt, Michel Mansur Machado, Alexandre Meneghello Fuentefria (Autor)
The steroid hormones are lipids in nature, which play crucial roles in several metabolic and behavioral pathways in mammals. Drug therapy uses sterol hormones for treating some disturbances linked with its deficiency; however, the illicit use of these hor... see more
Endalamaw Yihune, Getahun Yemata (Autor)
This study was conducted to evaluate the in vitro antibacterial activity of some medicinal plants against Ralstonia solanacearum. Bioactive chemicals were extracted from Burcea antidysenterica, Eucalyptus citriodora, Justicia schimperiana, Lantana camara,... see more
Cicero Diogo Lins Oliveira, Carlos Yure Barbosa de Oliveira (Autor)
Melanoides tuberculata has invaded several aquatic ecosystems in the Neotropical region. This species shows high adaptive capacity and plasticity, establishing itself in several basins, promoting negative impacts on environments and native species. Here, ... see more
Tatiane do Nascimento Lima, Luciane Gomes Freire, Dariany Cristina Aristides de Lima (Autor)
In cases of asymmetric competition, larger individuals of many animal species have a greater probability of acquiring territory, gaining initial access to resources and finding a mate in comparison to smaller individuals. The competition among larvae of t... see more
Lucas Chagastelles Pinto de Macedo, Sylvio Henrique Bidel Dornelles, Mariane Peripolli, Vinicius Severo Trivisiol, Danúbia Quadros da Conceição, Maicon Pivetta, Otávio dos Santos Escobar, Liliana Essi (Autor)
The genetic variability and genetic versatility of plants belonging to Poaceae provide morphophysiological responses that allow these individuals to adapt to environmental changes, especially in relation to soil moisture. Urochloa plantaginea and U. platy... see more