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Esterase activity in homogenates of Helicoverpa armigera (Hubner) (Lepidoptera:...
Carneiro, Eliane; Silva, Luciana Barboza; Paiva, Patrícia; Napoleão, Thiago Henrique; Carvalho, Gabriel dos santos; Lopes, Gleidyane NovaisThe toxicity of some insecticides to Helicoverpa armigera was studied through sublethal effects, evaluating the enzymatic activity of esterase and the behavioral response. The commercial formulation of insecticides selected were chlorpyrifos, spinosad, indoxacarb, chlorantraniliprole, lambda-cyhalothrin and Bacillus thuringiensis, corresponding the most used by farmers to control of H. armigera. To determine th...
Kinetic and ecotoxicological evaluation of the direct orange 26 dye degradation...
Santana, Rayany Magali da Rocha; Nascimento, Graziele Elisandra do; Silva, Polyana Karynne de Aguiar; Lucena, Alex Leandro Andrade deThe presence of color in textile effluents has been studied because of the need for more effective treatments. Therefore, advanced oxidative processes (AOP) have been used in the degradation of dyes, as well as in the conversion of organic matter. This study evaluated the degradation of the direct orange 26 textile dye by Fenton and photo-Fenton processes (with natural solar radiation). A statistical analysis, ...
Schinus terebinthifolius leaf extract causes midgut damage, interfering with su...
Procópio, Thamara Figueiredo; Fernandes, Kenner Morais; Pontual, Emmanuel Viana; Ximenes, Rafael Matos; Oliveira, Aline Rafaella Cardoso deIn this study, a leaf extract from Schinus terebinthifolius was evaluated for effects on survival, development, and midgut of A. aegypti fourth instar larvae (L4), as well as for toxic effect on Artemia salina. Leaf extract was obtained using 0.15 M NaCl and evaluated for phytochemical composition and lectin activity. Early L4 larvae were incubated with the extract (0.3–1.35%, w/v) for 8 days, in presence or ab...
Atividade inseticida e mecanismos de ação de lectinas de Myracrodruon urundeuva...
Napoleão, Thiago HenriqueFACEPE; CNPq; CAPES; Lectinas, proteínas que ligam específica e reversivelmente a carboidratos, isoladas da entrecasca (MuBL) e do cerne (MuHL) da aroeira-do-sertão (Myracrodruon urundeuva) foram agentes inseticidas contra operários e soldados de Nasutitermes corniger (MuHL) e larvas de Aedes aegypti (MuBL e MuHL). A presente Tese descreve a purificação da lectina de folha de M. urundeuva (MuLL), a atividade te...