The hycu-ep32 gene of Hyphantria cunea NPV can inhibit Bombyx mori nucleopolyhedrovirus (BmNPV) multiplication in co-infected cells, but it is not known whether the overexpression of the hycu-ep32 gene has an antiviral effect in the silkworm, Bombyx mori. Thus, we constructed four transgenic vectors, which were under the control of the 39 K promoter of BmNPV (39 KP), Bombyx mori A4 promoter (A4...

Heterosis is a concern to all breeders, but the mechanism of heterosis remains unknown. In F1 organisms, genetic material is inherited from the two parents and theoretically, heterosis might be caused by differences in gene expression or modification. Differential gene expression was analyzed in hybrids and parents in Bombyx mori. The results showed that there were significant changes in gene e...

Alphabaculovirus is an entomopathogenic virus genus that infects Bombyx mori, which is known as the Bombyx mori multiple nucleopolyedrovirus (BmMNPV). This virus is polyorganotrophic, and a series of tissues are known as targets; however, there is currently no information regarding infection in the pylorus, the segment of the hindgut that is present in the midgut transition and is responsible f...

The nucleotide sequence of tRNA1Gly isolated from the posterior silk gland of Bombyx mori has been determined. This transfer RNA is present in high amounts in the posterior silk gland during the fifth larval instar. It has a GCC anticodon, capable of decoding a major glycine codon in the fibroin messenger RNA, GGU. Structural features of Bombyx tRNA1Gly and its homology to other eukaryotic glyc...

The E loci in Bombyx mori are expected to contain a homeotic gene complex specifying the identities of the larval abdominal segments. However, the molecular structure of this complex remains to be determined. We have started to analyze the structural changes in the E complex mutations. We used three newly isolated Bombyx homeobox genes as probes. These genes are probably homologues of the Ultra...

Human 29IJ6 IgG was expressed in silkworm using a Bombyx mori 25 nucleopolyhedrovirus (BmNPV) bacmid system. The mean amounts of 296IJ6 IgG 26 produced in larval hemolymph and whole pupae were 30.1 μg/larva and 78.0 μg/pupa,

Storage proteins are the major protein synthesized in the fat body, released into hemolymph and re-sequestered into the fat body before pupation in most insect species. Storage proteins are important amino acid and nutrition resources during the non-feeding pupal period and play essential roles for the metamorphosis and oogenesis of insects. The sequestration of storage protein is a selective, ...

Silkworm (Bombyx mori) has been reported to exhibit diverse health benefits. A comparative study was conducted evaluate the physicochemical (colour, water activity, pH, solubility, proximate, mineral, amino acid, and fatty acid composition) microbiological qualities of Bombyx mori silkworm powder produced from two developmental stages (larvae pupae). pupae (SPP) had significantly higher (p<0...

Bombyx mori is an insect whose cocoon is used in the sericulture industry, which is an important activity in parts of southern Brazil. When parasitized by Bombyx mori nucleopolyhedrovirus (BmNPV) of the genus Alphabaculovirus (alphaBV), it develops nuclear polyhedrosis disease. In Brazil, an alphaBV was isolated from larvae of B. mori and various target tissues were identified. However, how thi...