lohaiam.blogg.se - Bombyx mori

mori is a fully domesticated insect species.

The origins of sericulture date back about 5,000 years and today B. Bombyx mori has great economic and scientific value, as it has long been exploited as a primary silk producer and as a model system for lepidopterans and. Its larvae, which feed on mulberry leaves, are farmed for the production of silk (sericulture) and are thus of great economic importance. Derryvunlan, Powers Cross, Portumna, Co Galway, Ireland, H53 CX98. Bombyx mori, the silkworm, belongs to the order Lepidoptera in the phylum Arthropoda. Conservation Status of Sericulture Germplasm Resources in the World - II. See more of Bombyx MORI - wearable art on Facebook. "Conservation status of silkworm genetic resources in India". Opinions and Declarations Rendered by the International Commission on Zoological Nomenclature. Development of Malacosoma disstria cytoplasmic polyhedrosis virus in Bombyx mori ovarian and tracheal tissue cultures. Silk fibers are derived from the cocoon of the silkworm Bombyx mori, which was domesticated over the past 5000 years from the wild progenitor Bombyx mandarina (). Suppression under the Plenary Powers of the generic name Phalaena Linnaeus, 1758, and validation as of subgeneric status (a) as from 1758, of the Terms Bombyx, Noctua, Geometra, Tortrix, Pyralis, Tinea, and Alucita as used by Linnaeus for Groups of species of the genus Phalaena and (b) as from 1767 of the term Attacus similarly published by Linnaeus and matters incidental thereto (Class Insecta, Order Lepidoptera)".

^ Pitkin, Brian & Jenkins, Paul (November 5, 2004).

Reports are available on temperature-induced sterility in silkworm. These results indicate that BmNPV downregulates transcription factor BmFoxO to elevate virus infection, and BmFoxO overexpression upregulates BmPEPCK-2 expression and enhances silkworm antiviral resistance.Īntiviral immunity BmFoxO BmNPV BmPEPCK Silkworm.Ĭopyright © 2020 Elsevier Ltd. In the silkworm, Bombyx mori, maximum ovulation and fecundity with minimum retention were observed at temperature 25.36 ± 0.17☌ and any fluctuation from this level decreased ovulation, oviposition fecundity and increased retention of eggs. Moreover, overexpression of BmFoxO significantly increased the expression of autophagy genes ATG6/7/8 after infection with BmNPV, consistent with BmPEPCK-2.

BmFoxO could upregulate the expression of BmPEPCK-2 by binding to the BmPEPCK-2 promoter. Examples of usual applications of Bombyx mori silk fibers are given and some of the most recent and exciting progress in new technological fields, is presented. In addition, the expression of BmFoxO was altered, and it was found that reduced expression of BmFoxO (dsBmFoxO) downregulated the expression of BmPEPCK-2 and increased the viral fluorescence and content in silkworm embryonic cell line BmE cells, and vice versa. In the present study, we found that the expression of BmFoxO decreased after BmNPV infection in Bombyx mori this finding was consistent with BmPEPCK-2 expression. Therefore, we speculated that BmFoxO might suppress BmNPV by regulating the expression of PEPCK in silkworm. We have previously demonstrated the involvement of phosphoenolpyruvate carboxykinase (BmPEPCK-2) in antiviral immunity against the multiplication of Bombyx mori nuclearpolyhedrosisvirus (BmNPV) in silkworm. Forkhead-box O (FoxO) is the primary transcriptional effector of the insulin-like signaling pathway that enhances gluconeogenesis through transcriptional activation of PEPCK and G6Pase in mammals.