VITELLOGENIN IN THE EGGS OF THE COCKROACH, BLATTELLA GERMANICA: PURIFICATION AND CHARACTERIZATION
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چکیده
منابع مشابه
Isolation and sequence of a partial vitellogenin cDNA from the cockroach, Blattella germanica (L.) (Dictyoptera, Blattellidae), and characterization of the vitellogenin gene expression.
A partial cDNA clone of the vitellogenin gene from the cockroach Blattella germanica has been isolated from a cDNA expression library using an anti-vitellin-vitellogenin antiserum probe. The analysis of cDNA inserts gave a sequence of 2,645 nucleotides corresponding to the 3' region. The deduced amino acid sequence is 825 residues long and is similar to the homologous portion of the vitellogeni...
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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...
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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...
متن کاملIdentification and functional characterization of an ovarian aquaporin from the cockroach Blattella germanica L. (Dictyoptera, Blattellidae).
Aquaporins (AQPs) are membrane proteins that form water channels, allowing rapid movement of water across cell membranes. AQPs have been reported in species of all life kingdoms and in almost all tissues, but little is known about them in insects. Our purpose was to explore the occurrence of AQPs in the ovary of the phylogenetically basal insect Blattella germanica (L.) and to study their possi...
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A new DNA virus (Parvoviridae: Densovirinae, Densovirus) was isolated and purified from descendants of field-collected German cockroaches, Blattella germanica. Viral DNA and cockroach tissues infected with B. germanica densovirus (BgDNV) were examined by electron microscopy. Virus particles, about 20 nm in diameter, were observed both in the nucleus and in the cytoplasm of infected cells. Virus...
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ژورنال
عنوان ژورنال: Development, Growth and Differentiation
سال: 1975
ISSN: 0012-1592,1440-169X
DOI: 10.1111/j.1440-169x.1975.00237.x