Abstract The easy adaptation of Angiostrongylus costaricensis, nematode responsible for abdominal angiostrongyliasis to several species of terrestrial and freshwater molluscs and the differences observed in the interactions of trematodes with their intermediate hosts have induced us to study the concomit...
Abstract The populations of Artemia (or brine shrimp) from the Americas exhibit a wide variation in the amount of interphase heterochromatin. There is interest in understanding how this variation affects different parameters, from the cellular to the organismal levels. This should help to clarify the abi...
Artemia/crecimiento & desarrollo,
Artemia/fisiología,
Núcleo Celular/química,
Ecosistema,
Heterocromatina/química,
Interfase,
Larva/crecimiento & desarrollo,
Larva/fisiología,
Salinidad,
América del Sur,
Estados Unidos
Abstract: Background: Chemical pesticides, widely used in agriculture and vector-borne disease control, have shown toxic effects on the environment and the people in contact with them. Bacillus thuringiensis is a widely used bacterium for alternative and safer control of insect pests. Its toxins are sp...
Bacillus thuringiensis,
Proteínas Bacterianas/farmacología,
Endotoxinas/farmacología,
Proteínas Hemolisinas/farmacología,
Insecticidas/farmacología,
ProteómicaMétodos,
Toxinas de Bacillus thuringiensis,
Proteínas Bacterianas/aislamiento & purificación,
ADN Ribosómico/genética,
Endotoxinas/aislamiento & purificación,
Proteínas Hemolisinas/aislamiento & purificación,
Insecticidas/aislamiento & purificación,
Larva/efectos de los fármacos,
México,
Mariposas Nocturnas/efectos de los fármacos,
Control Biológico de VectoresMétodos
Las larvas musculares (LM) de T. spiralis alteran la agregación eritrocitaria. El objetivo del trabajo fue estudiar la cinética de desialización eritrocitaria producida por LM vivas de T. spiralis. Se realizaron 3 experiencias en las que se incubaron 60 larvas con 30 μL de eritrocitos en 1 mL de ...
ABSTRACT The constant use of chemical insecticides for Aedes aegypti control has caused resistance in the mosquito populations. Thus, the objective of this study was to analyze the larvicidal potential of extracts and fractions of plants on A. aegypti larvae. The analysis included sixty one extracts and ...
Aedes,
Bioensayo,
Agentes de Control Biológico,
Brasil,
Etanol/química,
Insecticidas,
Larva,
Extractos Vegetales,
Hojas de la Planta/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Pruebas de Toxicidad
ABSTRACT Melon is one of the most important vegetable crops in the world. With short cycle in a system of phased planting, phytosanitary control is compromised, and a great volume of agricultural chemicals is used to control vegetable leafminer. Genetic control is an ideal alternative to avoid the damage...
Clorofila/análisis,
Colorimetría/métodos,
Cucumis melo/genética,
Dípteros,
Genes de Plantas,
Variación Genética,
Genotipo,
Larva,
Control Biológico de Vectores/métodos,
Fenotipo,
Enfermedades de las Plantas/prevención & control,
Hojas de la Planta/química,
Hojas de la Planta/genética,
Valores de Referencia,
Estadísticas no Paramétricas
Abstract Plants respond to wounding caused by mechanical stress or herbivory by synthesizing defense proteins. There are no studies reporting the action of induced plant proteins against ticks. The aim of this study was to investigate the effect of mechanically wounded Leucaena leucocephala leaves agains...
Abstract Priacanthus arenatus is a fish that occurs in the waters of the western Atlantic Ocean and has few records of parasitism. This study aimed to report histological changes caused by the larvae of Hysterothylacium deardorffoverstreetorum. Between July and December, 2013, 30 samples of P. arenatus w...
PAIVA, DERISVALDO R;
LIMA, DÊNIS P DE;
AVVARI, NAGA P;
ARRUDA, EDUARDO J DE;
CABRINI, ISAIAS;
MARQUES, MARIA RITA;
SANTOS, EDSON A DOS;
BIAGGIO, FRANCISCO C;
SANGI, DIEGO P;
BEATRIZ, ADILSON.
ABSTRACT Cardanol is a constituent of Cashew Nut Shell Liquid that presents larvicidal activity against Aedes aegypti. The isolation of cardanol is somewhat troublesome, however, in this work we describe an efficient and inexpensive method to obtain it as a pure material. The compound was used as startin...
Aedes/efectos de los fármacos,
Insecticidas/síntesis química,
Insecticidas/farmacología,
Insecticidas/toxicidad,
Larva/efectos de los fármacos,
Dosificación Letal Mediana,
Fenoles/química,
Fenoles/aislamiento & purificación,
Fenoles/farmacología,
Fenoles/toxicidad,
Factores de Tiempo
O objetivo deste estudo foi avaliar a atividade predatória do fungo Duddingtonia flagrans contra larvas infectantes (L3) de nematoides gastrintestinais na pastagem e no bolo fecal de equinos, em um período de 21 dias. O delineamento experimental foi inteiramente ao acaso, com três grupos tratados (G1,...
