Blattella germanica displays a large arsenal of antimicrobial peptide genes
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Laboratory evaluation of fipronil against Periplaneta americana & Blattella germanica.
BACKGROUND & OBJECTIVE In cockroach control, bait formulations are extensively used. Fipronil is one of the broad spectrum insecticides from phenyl pyrazole family available in bait formulation. The compound has been tested under field conditions. However, information on its effectiveness on different surfaces and at various density levels is not known. Therefore, the efficacy of a new formulat...
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N,N-diethyl-3-methylbenzamide (DEET) is the active principle of most insect repellents used worldwide. However, its toxicity on insects has not been widely studied. The aim of this work is to study the effects of DEET on the locomotor activity of Blattella germanica. DEET has a dose-dependent repellent activity on B. germanica. Locomotor activity was significantly lower when insects were pre-ex...
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The literature suggests that several species of insects can convert Czs and Czs sterols to cholestane derivatives. According to Bergmann (l), cholesterol is the major sterol constituent (85%) and the plant sterol sitosterol a minor component of chrysalis oil obtained from the silkworm Bombyx mori, although this insect feeds exclusively on mulberry leaves. More recently, Bergmann and Levinson (2...
متن کاملModeling Currents About Vitellogenic Oocytes of the Cockroach, Blattella germanica.
An insect oocyte with a disc-shaped sink of current on its ventral surface during a vitellogenic phase of development is used to demonstrate modeling of expected currents arising from a mathematically defined source. A simple model with an analytical solution for the expected currents is compared to a more complex model in which expectations are computed by mathematical integration. The current...
متن کاملDe Novo Transcriptome of the Hemimetabolous German Cockroach (Blattella germanica)
BACKGROUND The German cockroach, Blattella germanica, is an important insect pest that transmits various pathogens mechanically and causes severe allergic diseases. This insect has long served as a model system for studies of insect biology, physiology and ecology. However, the lack of genome or transcriptome information heavily hinder our further understanding about the German cockroach in eve...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2020
ISSN: 2045-2322
DOI: 10.1038/s41598-020-77982-3