Flies in the family Sarcophagidae incubate their eggs and are known to be ovoviviparous (i.e., ovolarviparous), but a laboratory-maintained colony of Blaesoxipha plinthopyga (Wiedemann) deposited clutches of viable eggs over 10 generations. A description of the egg and first-instar larva of this species is provided along with genetic data (genome size and cytochrome oxidase I sequences). The egg is similar to previously described eggs of other Sarcophagidae but differs in the configuration of the micropyle. In the first-instar larva, the oral ridges are much more developed than has been described for other species. B. plinthopyga has forensic importance, and the present descriptive information is critical for proper case management.
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http://dx.doi.org/10.1603/ME14029 | DOI Listing |
Int J Biol Macromol
December 2024
Integrative Science Center of Germplasm Creation in Western China (CHONGQING) Science City, Biological Science Research Center, Southwest University, Chongqing 400715, China; Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Chongqing 400715, China. Electronic address:
The abnormal development of urate granules in silkworm larvae leads to translucent mutants with a distinct transparent phenotype. Studies on such mutants are expected to enhance current understanding of uric acid metabolism. The hoarfrost translucent (oh) mutant exhibits a mottled, translucent larval integument due to the presence of smaller and irregularly shaped urate granules compared to wild-type individuals.
View Article and Find Full Text PDFBiol Methods Protoc
December 2024
Department of Biological Sciences, University of Alberta, G-504 Biological Sciences Bldg, Edmonton, Alberta, Canada, T6G 2E9.
Intravenous injection provides a direct, rapid, and efficient route for delivering drugs or other substances, particularly for compounds with poor intestinal absorption or molecules (e.g. proteins) that are prone to structural changes and degradation within the digestive system.
View Article and Find Full Text PDFParasit Vectors
December 2024
Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic.
Background: Leishmaniasis is a group of neglected vector-borne diseases transmitted by phlebotomine sand flies. Leishmania parasites must overcome various defenses in the sand fly midgut, including the insects's immune response. Insect immunity is regulated by the ecdysone hormone, which binds to its nuclear receptor (EcR) and activates the transcription of genes involved in insect immunity.
View Article and Find Full Text PDFActa Trop
December 2024
Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Instituto IEGEBA (CONICET-UBA), Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, 4to piso. Laboratorio 54. C1428EHA, Buenos Aires, Argentina.
The performance of Aedes aegypti was evaluated under natural winter nutritional and thermal conditions in the temperate region of Argentina. Immature stages were reared using leaf litter as a food source. The rearing was structured in three cohorts, the first started in late-fall, the second in early-winter and the last in mid-winter, and in each cohort two treatments were arranged according to solar exposure (sun and shade).
View Article and Find Full Text PDFiScience
December 2024
Max Planck Institute for Chemical Ecology, Department of Evolutionary Neuroethology, Jena, Germany.
In holometabolous insects, the choice of oviposition substrate by the adult needs to be coordinated with the developmental needs of the larva. female flies possess an enlarged serrated ovipositor, which has enabled them to conquer the ripening fruit as an oviposition niche. They insert their eggs through the skin of priced small fruits.
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