Vitellogenesis

Vitellogenesis

Vitellogenesis (also known as "yolk deposition") is the process of yolk formation via nutrients being deposited in the oocyte, or female germ cell involved in reproduction. It starts when the fat body stimulates the release of juvenile hormones and produces vitellogenin protein. It occurs in all animal groups lower than the mammals. In cockroaches, for example, vitellogenesis can be stimulated by injection of juvenile hormone into immature females and mature males.

In mosquitoes infected with Plasmodium, vitellogenesis may be manipulated by the parasites to reduce fecundity (Hurd, 2003).

Bibliography

*HURD, Hilary, 2003, "Manipulation of medically important insect vectors by their parasites," Annual Review of Entomology 48, 141-61.


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  • vitellogenesis — vitellogenesis. См. вителлогенез. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • vitellogenesis — noun Etymology: New Latin, from Latin vitellus + New Latin o + genesis Date: 1947 yolk formation …   New Collegiate Dictionary

  • vitellogenesis — n. [L. vitellus, yolk; Gr. genesis, beginning] The production of yolk …   Dictionary of invertebrate zoology

  • vitellogenesis — /vi tel oh jen euh sis, vuy /, n. Embryol. the process by which the yolk is formed and accumulated in the ovum. [1945 50; VITELL(US) + O + GENESIS] * * * …   Universalium

  • vitellogenesis — Formation of the yolk and its accumulation in the yolk sac. [L. vitellus, yolk, + G. genesis, production] * * * vi·tel·lo·gen·e·sis vī .tel ō jen ə səs, və n, pl e·ses .sēz yolk formation vi·tel·lo·gen·ic jen ik adj …   Medical dictionary

  • vitellogenesis — vi·tel·lo·genesis …   English syllables

  • vitellogenesis — vi•tel•lo•gen•e•sis [[t]vɪˌtɛl oʊˈdʒɛn ə sɪs, vaɪ [/t]] n. dvl the process by which a yolk is formed and accumulated in the ovum • Etymology: 1945–50; vitell (us) + o + genesis …   From formal English to slang

  • vitellogenesis — /vətɛloʊˈdʒɛnəsəs/ (say vuhteloh jenuhsuhs) noun Biology the process of yolk formation. {vitell(us) + o + genesis} …  

  • vitellogenesis — (ˌ)vīˌtelə, və̇ˌt + noun Etymology: New Latin, from vitell + genesis : yolk formation * * * /vi tel oh jen euh sis, vuy /, n. Embryol. the process by which the yolk is formed and accumulated in the ovum. [1945 50; VITELL(US) + O + GENESIS] …   Useful english dictionary

  • вителлогенез — vitellogenesis вителлогенез. Процесс синтеза и накопления питательных веществ (желтка) в ооцитах на этапе их быстрого роста, который может происходить экзогенно (вне яичника при алиментарном оогенезе) или эндогенно (в гранулярной… …   Молекулярная биология и генетика. Толковый словарь.

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