Extrato de Manihot esculenta como inseticida alternativo no controle de pulgão preto (Toxoptera citricida) dos citros.

Este trabalho objetivou avaliar a toxicidade de cinco concentrações de extrato de Manihot esculenta aplicado por pulverização via translaminar sobre a mortalidade de pulgão preto em condições de laboratório

Potencial de manipueira de mandioca (Manihot esculenta Crantz) no controle de pulgão preto de citros (Toxoptera citricida Kirkaldy, 1907).

Esta pesquisa teve como principal objetivo, investigar o inseticida potencial inseticida do extrado de manipueira em, Pulgão preto dos citros, Toxoptera citricida Kirkaldy,1907

Extrato de erva-de-rato (Palicourea marcgravii) como inseticida alternativo visando o controle do pulgão preto (Toxoptera citricida) dos citros.

Este trabalho objetivou avaliar a toxicidade de cinco concentrações de extrato de Palicourea marcgravii, aplicado por pulverização via contato sobre a mortalidade do pulgão preto, em condições de laboratório

Description of two new Neotropical subgenera of Simulliidae (Diptera: Culicomorpha)

Zwei neue Untergattungen (Cerqueirellum :und Coscaroniellum) werden auf der Grundlage von Arten beschrieben, die bisher in die "amazonicum"-Gruppe gehörten. Die meisten dieser Arten werden revidiert und einige Synonyme hinzugefügt. Schlüssel zur Art- und Untergattungsunterscheidung werden vorgestellt

Regulation of mammary gland branching morphogenesis by the extracellular matrix and its remodeling enzymes.

A considerable body of research indicates that mammary gland branching morphogenesis is dependent, in part, on the extracellular matrix (ECM), ECM-receptors, such as integrins and other ECM receptors, and ECM-degrading enzymes, including matrix metalloproteinases (MMPs) and their inhibitors, tissue inhibitors of metalloproteinases (TIMPs). There is some evidence that these ECM cues affect one or more of the following processes: cell survival, polarity, proliferation, differentiation, adhesion, and migration. Both three-dimensional culture models and genetic manipulations of the mouse mammary gland have been used to study the signaling pathways that affect these processes. However, the precise mechanisms of ECM-directed mammary morphogenesis are not well understood. Mammary morphogenesis involves epithelial 'invasion' of adipose tissue, a process akin to invasion by breast cancer cells, although the former is a highly regulated developmental process. How these morphogenic pathways are integrated in the normal gland and how they become dysregulated and subverted in the progression of breast cancer also remain largely unanswered questions