Diapause - Wikipedia, the free encyclopedia
Diapause is a physiological state of dormancy with very specific triggering and releasing conditions. It is used as a means to survive predictable, unfavourable environmental conditions, such as temp...
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Diapause is usually done by insects. It is a ‘sleep time’ that is different from hibernation because the animals do not grow during this time. There are two kinds of diapause: ... Obligatory--a word that just means that the animal or insect MUST do this at some stage in its development. It has no choice.
library.thinkquest.org/TQ0312800/diapause.htm library.thinkquest.org/TQ0312800/diapause.htm
Many species of insects have evolved a strategy called diapause. Diapause is a suspension of development that can occur at the embryonic, larval, pupal, or adult stage, depending on the species. In some species, diapause is facultative and ... Nijhout, H. F. 1994. Insect Hormones. Princeton University Press, Princeton.
8e.devbio.com/article.php?id=211
Beside its effect on carbohydrate metabolism, diapause hormone is thought to exert other actions on ovaries. The physiology, ecology and evolution of insect diapause remain contemporary areas of study. A far more complex picture of hormonal regulation of diapause will emerge in due course.
entomology.unl.edu/ent801/diapause.html entomology.unl.edu/ent801/diapause.html
DIAPAUSE is a state of arrested development which synchronises insect activity cycles with seasons when food resources are available. ... Facultative diapause occurs in response to environmental cues such as photoperiod and temperature which influence the endocrine system before the unfavourable conditions arrive1,2.
www.nature.com/nature/journal/v246/n5434/abs/246511a0.h... www.nature.com/nature/journal/v246/n5434/abs/246511a0.html
3. The termination of the pupal diapause and the progress of adult development are accompanied by a marked increase in the insect's sensitivity to cyanide and carbon monoxide. The effects of these agents are then no longer limited to muscular tissue but extend to the insect as a whole.
www.biolbull.org/cgi/content/abstract/106/2/210
3. The pupal diapause is a state of endocrine deficiency resulting from a temporary failure of the brain in secreting its tropic hormone following pupation. ... R. A. Bell and P. L. Adkisson; Photoperiodic Reversibility of Diapause Induction in an Insect; Science, May 29, 1964; 144(3622): 1149 - 1151. [Abstract] [PDF];
www.biolbull.org/cgi/content/abstract/103/1/120
If hormones are used to interrupt the molt cycle at various stages, this is a much safer and specific form of insect killer. There are currently available several types of pesticides that contain molting hormones.
comenius.susqu.edu/bi/322/IZLecture23.htm
Insect diapause is a dynamic process consisting of several successive phases. The conception and naming of the phases is unsettled and, sometimes, ambiguous in the literature. ... The phases of diapause induction, ... Published 25 January 2006 in J Insect Physiol, 52(2): 113-27. Full-text of this article is available online...
linguistics.researchtoday.net/archive/2/1/581.htm
OBJECTIVES: Characterize insect diapause at the cellular and molecular levels in two insect species to isolate and identify potential genes and/or proteins that can be used as cellular targets to prevent insect dormancy.
www.reeis.usda.gov/web/crisprojectpages/189608.html
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