15 articles in this issue
Ana Lúcia Salaro, Daniel Abreu Vasconcelos Campelo, Mateus Moraes Tavares, Luiz Gustavo Tavares Braga, Marcelo Duarte Pontes, Jener Alexandre Sampaio Zuanon (Autor)
Two experiments were performed. The first aimed to assess the tolerance of fingerlings Astyanax altiparanae to water salinity. Fish were exposed to salinity of 0, 3, 6, 9, 12 or 15 g NaCl L-1 for 96 hours. The fish mortality was 0%, in the levels of 0, 3 ... see more
Lucas Roberto Pereira Gomes, Cristina do Rosário Batista Franceschi, Luciana Lopes Fortes Ribas (Autor)
An efficient in vitro propagation method was established for Brasilidium forbesii (Hook.) Campacci using transverse and longitudinal thin cell layer (tTCL and lTCL, respectively) culture systems. Six-month-old protocorms from in vitro germinated seeds wer... see more
Karina de Queiroz Braga, Mairon César Coimbra, Ana Hortência Fonsêca Castro (Autor)
A protocol for the in vitro germination and callus induction in Pyrostegia venusta, a medicinal plant species from the Brazilian savannah (Cerrado) is provided. The establishment of cultures of P. venusta was originally obtained from seeds germinated in v... see more
Emanuela Garbin Martinazzo, Anelise Tessari Perbini, Marcos Antonio Bacarin (Autor)
The mechanisms of photosynthetic electron transport can be elucidated by inhibition of electron flow through the use of specific substances that, when combined with the chlorophyll chlorophyll a fluorescence emission was measured to investigate the ... see more
Fábio Henrique Portella Corrêa de Oliveira, Joanne D'Arc Bezerra da Silva, Anapaula Nunes Silvestre Fernandes Costa, Waldemir Pimentel Ramalho, César Henrique Pinto Moreira, Tiago Luiz Santana Calazans (Autor)
This study investigated the effect of seasonality on the Cyanobacteria community in two tropical eutrophic reservoirs in northeastern Brazil. Monthly samplings were conducted in the sub-surface of reservoirs. The following abiotic variables were analyzed:... see more
Barbara Maichak de Carvalho, Henry Louis Spach (Autor)
Habitat use is different along the ontogenetic development of some species and may be influenced by environmental parameters. This study described the interaction of Atherinella brasiliensis caught in intertidal areas of the Paranaguá Estuarine Compl... see more
Roberta Macedo Cerqueira, Fernando Roberto Martins (Autor)
We tested the hypothesis that the variation in tree species alpha diversity is driven by climate in the Brazilian Atlantic Rainforest (ARF). Considering 139 samples of trees with DBH = 4.8 cm, we correlated alpha diversity measures (Shannon heterogeneity ... see more
Patrício Adriano da Rocha, Juan Ruiz-Esparza, Adauto Souza Ribeiro, Stephen Ferrari (Autor)
The caatinga scrublands are relatively poorly-studied, and few data are available on the biome’s chiropteran fauna. The present study focuses on the bat community of the arboreal caatinga of Serra da Guia. Bats were trapped in mist-nets on thr... see more
Danielle das Neves Bespalhok, Erasmo Renesto, Tiago Signorini (Autor)
Beetles of the species Sitophilus oryzae and S. zeamais are pests of great economic importance since they attack not only rice and maize but also several other cereals. In fact, these beetles are one of the most visible threats to sustainable food product... see more
Erlânio Oliveira de Sousa, Fabíola Fernandez Galvão Rodrigues, Adriana Rolim Campos, José Galberto Martins da Costa (Autor)
Several plants have been evaluated not only for alone antimicrobial activity, but as resistance-modifying agent. This work is the first on the modulation of antibiotic activity by Lantana camara L. extracts against multiresistant strains of Escherichia co... see more
Vanessa Carla Lima da Silva, Francine Maria de França Silva, Isabelle Maria Jacqueline Meunier, Tânia Maria Sarmento da Silva, Valdemiro Amaro da Silva Júnior, Frederico Celso Lyra Maia (Autor)
Teratogenicity and developmental abnormalities in the offspring of female rats that ingested ethanol extract of Neem plants during pregnancy and lactation period were assessed. Twenty-four female Wistar rats were randomly distributed in control group and ... see more
Graziela Tarôco, Leila de Genova Gaya, Daniela Regina Resende, Ivan Carlos dos Santos, Ana Paula Madureira (Autor)
The factors related to cannibalistic behavior of dams in a Wistar rat colony are identified and analyzed. The maternal genetic effects were tested as a random effect by the method of generalized linear models. The season at parturition, the dam´s age at p... see more
Aline de Almeida Camargo, Natacha Heloísa Olavo Pedro, Larissa Sbeghen Pelegrini, Rodney Kozlowiski de Azevedo, Reinaldo José da Silva, Vanessa Doro Abdallah (Autor)
From March to April 2010, specimens of Acestrorhynchus lacustris were collected in the Peixe River, Anhembi, São Paulo State, Brazil. This characid, commonly known as peixe-cachorro, has a preference for lentic habitats and it features carnivorous h... see more
Gabriella Carla Leite de Vasconcelos, José Iranildo Miranda de Melo (Autor)
The family Loranthaceae Juss., characterized by its parasitic habit, is rarely studied in Brazil. Current research provides a taxonomic survey of Loranthaceae in the State of Paraiba, northeastern Brazil, in which ten species belonging to four gener... see more
Willian Massaharu Ohara, Luiz Jardim de Queiroz, Jansen Zuanon, Gislene Torrente-Vilara, Fabíola Gomes Vieira, Carolina da Costa Doria (Autor)
Biological collections preserve the biodiversity of a nation. The fish collection of the Universidade Federal de Rondônia, recently established, contains about 41% of freshwater fish species known to occur in Brazil, and 24% of South America. The biologic... see more