15 articles in this issue
Adilson Ferreira da Silva, Claudinei da Cruz, Flavia Regina Lazaro de Rezende, Alfredo Kohiti Feres Yamauchi, Robinson Antonio Pitelli (Autor)
The aim of this study was to estimate copper sulfate acute toxicity and to determine death percentage and environmental risk on guppy fish (Phallocerus caudimaculatus), zebrafish (Brachydanio rerio), mato grosso (Hyphessobrycon eques), and pacu (Piaractus... see more
Bianca Bentes, Jussara Moretto Martinelli-Lemos, Eduardo Tavares Paes, Suelly Cristina Pereira Fernandes, Jeanne Duarte Paula, Victoria Isaac (Autor)
Macrobrachium amazonicum is a freshwater prawn endemic to South America with wide distribution in Brazilian Amazon rivers. In estuary and freshwater streams of the Pará State, they are captured with different types of traps locally know matapi. This study... see more
Ismael Nilo Lino de Queiroz, José Ariévilo Gurgel Rodrigues, Ana Luíza Gomes Quinderé, Márjory Lima Holanda, Maria Gonçalves Pereira, Norma Maria Barros Benevides (Autor)
Metabolites isolated from Gelidiella species (Rhodophyta) have been few studied. We evaluated a sulfated polysaccharidic fraction from G. acerosa collected from two Brazilian beaches on the northwestern coast of Brazil (Flecheiras-F and Pedra Rachada-PR) ... see more
Catiuscia Marcon, Tatieli Silveira, Annette Droste (Autor)
The tree fern Cyathea corcovadensis (Raddi) Domin is an endangered species in the state of Rio Grande do Sul, Brazil. It currently occurs only in the northern segment of the coastal region. Spore storage would help in conservation programs since it mainta... see more
Leandro Fabrício Fiori, Patricia Almeida Sacramento, Daiany de Fátima Corbetta, Lucas Milani Pereira, Evanilde Benedito (Autor)
The particulate organic carbon (POC) is an important energy source present in the food chain of detritivorous fish. Considering its importance, this study aimed to investigate the effect of the flood pulse on the composition of the POC in a neotropical fl... see more
Oscar Barroso Vitorino Júnior, Kelven Stella Lopes, Fernando Mayer Pelicice (Autor)
Brycon nattereri is a threatened fish species restricted to small headwater rivers of the Paraná, São Francisco and Tocantins rivers. This species has been extirpated from many sites, and little is known about its ecology. In this sense, the present study... see more
João Ricardo Bueno de Morais Borba, Flávia da da Silva Costa, Tati Ishikawa, Raquel Maria Lima Lemes (Autor)
The objective of this study was to investigate the antifungal activity of Aloe arborescens dry extract against Trichosporon genus yeast species. Extraction was carried out by means of a longitudinal incision in fresh leaves, which were collected on a vat,... see more
Abdala Gamby Diédhiou, Wardsson Lustrino Borges, Oumar Sadio, Sergio Miana de Faria (Autor)
DNA extraction methods were evaluated for the yield and purity of DNA recovered from mycorrhized roots and whether the recovered DNA is suitable for amplification of arbuscular mycorrhizal (AM) fungal SSU rDNA. The DNeasy Plant Mini Kit and three extracti... see more
Valquíria Aparecida Mendes de Jesus, Alessandro Lucca Braccini, Luiz Antonio de Souza, Ismar Sebastião Moscheta, Giovanna Emanuelle Goncalves Mariucci, Fábio Lúcio Santos (Autor)
Calophyllum brasiliense Cambess. is a tree species that is presented as an alternative to replace endangered species of hardwood. The morphology and anatomy of the seedling of this species is the object of the present study. Seedlings at different stages ... see more
Valquíria Aparecida Mendes de Jesus, Alessandro Lucca Braccini, Carlos Alberto Scapim, Fábio Lúcio Santos, Giovanna Emanuelle Goncalves Mariucci, Andréia Kazumi Suzukawa (Autor)
This work aimed to study the effect of the Calophyllum brasiliense seed coat on the seed germination process. To this end, three experiments were conducted in laboratory, greenhouse and screenhouse. From a total of six treatments, five are related to the ... see more
Bruna Mary Matuguma Tanaka, Daniela Dias Pinto, Káthia Socorro Mathias Mourão (Autor)
The pericarp development of Serjania communis Camb. and Urvillea ulmacea Kunth was described to expand the structural knowledge of Sapindaceae fruit. Ovaries and fruits were analyzed with usual techniques in plant anatomy. Ovary is structurally similar an... see more
Bruna da Rosa Maggi Sant’Helena, Maria do Socorro Brasileiro-Santos, Elis Pereira Falcão, Denia Palmeira Fittipaldi Duarte, Nicodemos Telles de Pontes Filho, Carlos Peres da Costa (Autor)
Malnutrition is responsible for a number of alterations that occur in the organism, including alterations in the cardiovascular system. We hypothesize that long periods of malnutrition occurring after weaning may also be responsible for alterations in the... see more
Diego Carvalho Viana, Amilton Cesar dos Santos, Lianne Fernandes Araujo Chaves, Antonia Santos Oliveira, Antônio Chaves de Assís Neto, Alana Lislea de Sousa (Autor)
The reptile Kinosternon scorpioides is a freshwater chelonian, popularly known as jurará, and is found in the Baixada Maranhense, Maranhão State, Brazil. Due to the lack of scientific information on the reproductive biology of the species, current paper d... see more
Alluanan Adelson do Nascimento Silva, Jessica Santana de Oliveira, Rodrigo Ribeiro de Oliveira, Sílvia Regina Arruda de Moraes, Valdemiro Amaro da Silva Júnior, Elizabeth Neves de Melo (Autor)
The goal of present study was to evaluate the effects of diabetes on quantitative parameters of Leydig cells. Twelve adults Wistar rats were divided in: 1) Diabetic Group (DG), which was induced by a single intraperitoneal injection of streptozotocin (60 ... see more
Juliana Plácido Guimarães, Renata de Britto Mari, Alfredo Le Bas, Maria Angélica Miglino (Autor)
The tongue of birds presents diversified morphologic characteristics, related directly their feeding habits and may be adapted to food capture. Penguins of the Spheniscidae family are pelagic birds that are totally adapted to the marine environment. ... see more