By Alexander S. Raikhel (auth.), Kerry F. Harris (eds.)
Volume nine during this sequence contains 4 chapters on vectors that impact human or animal overall healthiness and 6 chapters on plant pathogens and their vectors. In bankruptcy 1, Alex S. Raikhel discusses vitellogenesis in mosquitoes: the cornerstone of the reproductive cycle related to enormous construction of yolk precursors by means of the fats physique and their accumulation in constructing oocytes. In anautogeneous mosquitoes, vitellogenesis relies at the availability of a blood meal and, thus, is associated with transmission of pathogens. hence, elucidation of mechanisms governing the mosquito vitellogenesis is necessary for the winning improvement of novel techniques in vector and disorder administration. past experiences on mosquito vitellogenesis have dealt predominantly with hormonal keep an eye on. The objective of this evaluate, besides the fact that, is to summarize major growth which has been completed in knowing mosquito vitellogenesis on the mobile, biochemical and molecular degrees. it really is with those disciplines that we predict to totally comprehend the mechanisms governing this key technique in mosquito reproduction.
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Extra resources for Advances in Disease Vector Research
Accumulative Pathway of Vitellogenin in the Oocyte Endocytosis of yolk proteins by developing oocytes is a central event in insect vitellogenesis. Selective uptake of extraovarian yolk protein precursors by Hyalophora oocytes suggested to Telfer a role for endocytosis in yolk accumulation (146). Coated vesicles, the cellular structure associated with selective endocytosis, were first observed in the mosquito oocyte (139). Selective or receptor-mediated endocytosis is now recognized as an ubiquitous mechanism for internalizing functionally important macromolecules in animal cells (55, 114).
13. , 1985, Isolation and characterization of highly purified mosquito oostatic hormone, Arch. Insect Biochem. Physiol. 2:333-349. 14. , 1988, Oostatic hormone inhibits biosynthesis of midgut proteolytic enzymes and egg development in mosquitoes, Arch. Insect Biochem. 7:187-210. 15. , Law, lH. (eds): Molecular Insect Science, Pergamon Press, New York, London, p. 281. 16. , 1990, Synthesis of (lOR) JH III by Aedes aegypti ovary, Annual Meeting of Entomological Society of America, p. 69. 17. , 1985, Juvenile hormone and 20-hydroxyecdysone as primary and secondary stimuli of vitellogenesis in Aedes aegypti.
Acknowlegments. I thank Drs. A. H. O. Lea, and P. Romans who kindly sent recent reprints and preprints of their unpublished work. Thanks to Drs. S. O. R. Brown for critical reading of the manuscript, and Mrs. R. Bickert for the excellent help in making the graphs and formatting the manuscript. This work was supported by grants AI-24716, HD-22958 and AI-32154 from the National Institutes of Health. 32 Alexander S. Raikhel References 1. , J. Cell BioI. 50:201-221. 2. , 1978, Purification and partial characterization of Culex fatigans yolk protein, Insect Biochem.
Advances in Disease Vector Research by Alexander S. Raikhel (auth.), Kerry F. Harris (eds.)