12 documents found, page 1 of 2
Descriptive study of intestinal parasites in a municipality of the western Braz...
Maciel, Marcel Gonçalves; Lima, Walter dos Santos; Baia da Silva, Djane Clarys; Cezar, Rodolfo Silva Moreira; Oliveira, Josue CostaIntestinal parasites are among the most prevalent infections in humans. A cross-sectional survey was performed in a Canutama, Amazonas state, Brazil, in order to estimate the prevalence of intestinal parasites. The detection of parasites in the feces was performed using the Lutz method. Demographic data and the characteristics of the households were collected using a questionnaire. The prevalence of parasites w...
Producción de conidios y clamidosporas de los hongos Duddingtonia flagrans y Mo...
Silva, Manoel Eduardo da; Braga, Fábio Ribeiro; Borges, Luana Alcântara; Oliveira, Paulo de; Lima, Walter dos Santos; Araújo, Jackson Victor deAs espécies Duddingtonia flagrans e Monacrosporium thaumasium são microfungos considerados promissores agentes de controle biológico de parasitos. Sob condições adversas, como a falta de nutrientes, estes fungos produzem esporos capazes de sobreviverem após a passagem pelo trato gastrintestinal dos animais. A formação destas estruturas é uma característica desejável, já que promove a sobrevivência fúngica e a s...
Desenvolvimento biológico de Angiostrongylus vasorum (Baillet) Kamensnky (Nemat...
Bessa, Elisabeth Cristina de Almeida; Lima, Walter dos Santos; Daemon, Erik; Cury, Márcia Cristina; Araújo, José Luiz de Barros-; With the purpose of investigating the biological aspects of Angiostrongylus vasorum (Baillet, 1866) Kamensky, 1905 in Subulina octona Bruguiere, 1789 experimental infections were carried out with the exposure of 90 adult molluscs to 155 L1 of the parasite/mollusc during 24 hours. The intramollus-can larval development was checked out daily through the chemical digestion of four infected molluscs and one moll...
In vitro activity of a serine protease from Monacrosporium thaumasium fungus ag...
Braga, Fabio R.; Araújo, Jackson V.; Soares, Filippe E. F.; Lima, Walter dos Santos; Mozer, Lanuze R.; Queiróz, José H.A serine protease from the nematophagous fungus Monacrosporium thaumasium (NF34a) was purified, partially characterized and tested in vitro in control of the first larval stage of Angiostrongylus vasorum. NF34a grew in liquid culture medium, producing its crude extract that was purified by ion exchange chromatography. The fractions with high protease activity were collected in a pool, and elution of proteases w...
The nematophagous fungus Monacrosporium thaumasium and its nematicidal activity...
Soares, Filippe Elias de Freitas; Braga, Fabio Ribeiro; Araújo, Jackson Victor de; Lima, Walter dos Santos; Queiroz, José Humberto deThe dog acts as a reservoir and environmental disseminator of potentially zoonotic parasites. The objective of this work was to study the fungus Monacrosporium thaumasium regarding its nematicidal potential in laboratory trials and its proteolytic profile. The in vitro test was carried out through two assays (A and B). In assay A, conidia of the fungus N34a were added in positive coprocultures for Angiostrongyl...
Dynamics of haemocytes from Pseudosuccinea columella circulating infected by Fa...
Ribeiro, Vinicius Marques Antunes; Coaglio, Aytube Lucas; Oliveira, Fernando Luiz Pereira; Pereira, Cíntia Aparecida de Jesus; Lima, Walter dos SantosThe lymnaeids are important in the epidemiology of Fasciola hepatica, a neglected and endemic zoonosis. The interaction between the internal defense system of Pseudosuccinea columella and F. hepatica has been little studied. In the present study the effect of infection by F. hepatica on P. columella circulating haemocytes was investigated. Changes in the average number of total circulating haemocytes have been ...
In vitro predatory activity of conidia of fungal isolates of the Duddingtonia f...
Braga, Fabio Ribeiro; Araujo, Juliana Milani; Araújo, Jackson Victor de; Soares, Filippe Elias de Freitas; Tavela, Alexandre de OliveiraAngiostrongylus vasorum is a nematode that parasitizes molluscs, dogs, and even man. The objective was to evaluate the predatory activity of the conidia of two fungal isolates of Duddingtonia flagrans (AC001 and CG722) on first-stage larvae (L1) of A. vasorum in laboratory conditions. At the end of the experiment, there were significant reductions (p<0.01) of 74.5% and 63.2%, on average, in the A. vasorum L1 re...
Atividade larvicida do extrato bruto enzimático do fungo Duddingtonia flagras s...
Braga, Fabio Ribeiro; Araujo, Juliana Milani; Tavela, Alexandre de Oliveira; Araújo, Jackson Victor de; Soares, Filippe Elias de FreitasAngiostrongylus vasorum é um nematóide que parasita cães domésticos e eventualmente o homem. O objetivo deste trabalho foi observar a atividade predatória in vitro do extrato bruto enzimático do fungo Duddingtonia flagrans sobre larvas de primeiro estádio A. vasorum em condições laboratoriais no meio ágar-água 2%. Ao final do experimento, os percentuais de redução das L1 de A. vasorum observados foram de: 53,5%...
Optimization of protease production by the fungus Monacrosporium thaumasium and...
Soares, Filippe Elias de Freitas; Queiroz, José Humberto de; Braga, Fabio Ribeiro; Araújo, Jackson Victor de; Lima, Walter dos SantosO objetivo deste trabalho foi otimizar a produção de proteases do fungo nematófago Monacrosporium thaumasium (NF34a), avaliar sua atividade larvicida e sua estabilidade biológica. Foi utilizado um isolado do fungo nematófago Monacrosporium thaumasium (NF34a) para a produção de enzima. O delineamento Plackett-Burman foi utilizado com o objetivo de se escanear quais componentes do meio de cultura, poderiam ter in...
Proteolytic activity of the nematophagous fungus Arthrobotrys sinensis on Angio...
Soares, Filippe Elias de Freitas; Queiroz, José Humberto de; Braga, Fabio Ribeiro; Araújo, Jackson Victor de; Lima, Walter dos SantosO link do DOI está errado não pode ter escrito periódico capes.; The predatory nematophagous fungus Arthrobotrys sinensis (SF53) produces three proteases with nematicidal activity when grown on solid media culture. However, the proteolytic profile produced by this fungus, when grown in liquid culture medium remains unknown. Thus, the objective of this work was to evaluate the production of proteases from nemato...