منابع مشابه
A survey of androconial organs in the Riodinidae (Lepidoptera)
The existence of specialized scales in adult male Lepidoptera has long been recognized, and they were first named androconia by Scudder (1877). Müller (1877a) believed that such structures had evolved as a result of sexual selection and that they were involved in the dissemination of scents or pheromones to influence female behaviour, a theory that has now been proven by experiments on the cour...
متن کاملNeuromodulation of Olfactory Sensitivity in the Peripheral Olfactory Organs of the American Cockroach, Periplaneta americana
Olfactory sensitivity exhibits daily fluctuations. Several studies have suggested that the olfactory system in insects is modulated by both biogenic amines and neuropeptides. However, molecular and neural mechanisms underlying olfactory modulation in the periphery remain unclear since neuronal circuits regulating olfactory sensitivity have not been identified. Here, we investigated the structur...
متن کاملthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
A Screen for Genes Expressed in the Olfactory Organs of Drosophila melanogaster Identifies Genes Involved in Olfactory Behaviour
BACKGROUND For insects the sense of smell and associated olfactory-driven behaviours are essential for survival. Insects detect odorants with families of olfactory receptor proteins that are very different to those of mammals, and there are likely to be other unique genes and genetic pathways involved in the function and development of the insect olfactory system. METHODOLOGY/PRINCIPAL FINDIN...
متن کاملHistochemical and ultrastructural analyses of the lubrication systems in the olfactory organs of soft-shelled turtle
In general, the nasal cavity of turtles is divided into two chambers: the upper chamber, lined with the olfactory epithelium containing ciliated olfactory receptor cells, and the lower chamber, lined with the vomeronasal epithelium containing microvillous receptor cells. In the nasal cavity of soft-shelled turtles, however, differences between the upper and lower chamber epithelia are unclear d...
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ژورنال
عنوان ژورنال: Journal of Morphology
سال: 1917
ISSN: 0362-2525,1097-4687
DOI: 10.1002/jmor.1050290103