The effect of ultrasound on important economic traits of the silkworm, Bombyx mori L., was studied in the laboratory. The silkworm eggs in blue-egg stage were exposed to ultrasound at 1 MHz and at an intensity of 9 W/cm 2 for 2 min, and the impact was examined on the economic traits of the silkworm. An elevatory effect was recorded with respect to egg hatchability, subsequent growth of larvae, ...

Bacterial disease of silkworm causes significant reduction of silk production leading to huge economic loss. This study aims to isolate bacteria from diseased silkworm and to determine its pathogenicity and antibiotic resistance. A strain of Klebsiella granulomatis has been isolated from silkworm haemolymph which was later identified on the basis of biochemical tests and 16S rRNA gene sequencin...

Bombyx mori (silkworm) silk proteins are being utilized as unique biomaterials for medical applications. Chemical modification or post-conjugation of bioactive ligands expand the applicability of silk proteins; however, the processes are elaborate and costly. In this study, we used transgenic silkworm technology to develop single-chain variable fragment (scFv)-conjugated silk fibroin. The cocoo...

We report here the identification of a common immunological determinant in Escherichia coli and Bombyx mori (silkworm) alanine tRNA synthetases. The E. coli protein is a tetramer of identical Mr = 95,000 chains, and the silkworm enzyme is a monomer of Mr = 115,000. Antibodies against the silkworm enzyme react with E. coli Ala-tRNA synthetase. Analysis of 10 fragments of the E. coli enzyme has m...

*KURAに登録されているコンテンツの利用については,著作権法に規定されている私的使用や引用などの範囲内で行ってください。 *著作権法に規定されている私的使用や引用などの範囲を超える利用を行う場合には,著作権者の許諾を得てください。ただし,著作権者 から著作権等管理事業者(学術著作権協会,日本著作出版権管理システムなど)に権利委託されているコンテンツの利用手続については ,各著作権等管理事業者に確認してください。 Title Expression of 20-hydroxyecdysone-induced genes in the silkworm brain and their functional analysis in post-embryonic development Author(s) Monwar, Hossain; Shimizu, Sakiko; Matsuki, ...

Spectral analysis has a very high sensitivity and accuracy, widely used in qualitative and quantitative analysis of textile fibers. This paper described the mechanism of spectroscopy in qualitative identification of textile fibers. Then it gave a systematic review and summary on the research of qualitative or quantitative analysis of textile fibers. It discussed the mechanism of spectroscopy in...

The structure-activity relationship of eclosion hormone from the silkworm, Bombyx mori, was analyzed. First, the probable active residues in silkworm eclosion hormone and also tobacco hornworm eclosion hormone were predicted by the average distance map method. To examine the contributions of those residues to the activity of silkworm eclosion hormone, Gly-substituted mutants for those predicted...

Sexually dimorphic neural circuits are essential for reproductive behaviour. The molecular basis of sexual dimorphism in the silkworm moth (Bombyx mori) brain, however, is unclear. We conducted cDNA subtraction screening and identified nervous wreck (Bmnwk), a synaptic growth regulatory gene, whose expression is higher in the male brain than in the female brain of the silkworm. Bmnwk was prefer...