Evidence for distinct signaling mechanisms in two mammalian olfactory sense organs.
نویسندگان
چکیده
منابع مشابه
Evidence for distinct signaling mechanisms in two mammalian olfactory sense organs.
In mammals, olfactory stimuli are detected by sensory neurons at two distinct sites: the olfactory epithelium (OE) of the nasal cavity and the neuroepithelium of the vomeronasal organ (VNO). While the OE can detect volatile chemicals released from numerous sources, the VNO appears to be specialized to detect pheromones that are emitted by other animals and that convey information of behavioral ...
متن کاملEvidence for two distinct mechanisms directing gaze in natural scenes.
Various models have been proposed to explain the interplay between bottom-up and top-down mechanisms in driving saccades rapidly to one or a few isolated targets. We investigate this relationship using eye-tracking data from subjects viewing natural scenes to test attentional allocation to high-level objects within a mathematical decision-making framework. We show the existence of two distinct ...
متن کاملA putative pheromone receptor gene is expressed in two distinct olfactory organs in goats.
Mammals possess two anatomically and functionally distinct olfactory systems. The olfactory epithelium (OE) detects volatile odorants, while the vomeronasal organ (VNO) detects pheromones that elicit innate reproductive and social behavior within a species. In rodent VNO, three multigene families that encode the putative pheromone receptors, V1Rs, V2Rs and V3Rs, have been expressed. We have ide...
متن کاملEvidence for multiple calcium response mechanisms in mammalian olfactory receptor neurons.
Olfactory receptor neurons employ a diversity of signaling mechanisms for transducing and encoding odorant information. The simultaneous activation of subsets of receptor neurons provides a complex pattern of activation in the olfactory bulb that allows for the rapid discrimination of odorant mixtures. While some transduction elements are conserved among many species, some species-specificity o...
متن کاملWingless signaling generates pattern through two distinct mechanisms.
wingless (wg) and its vertebrate homologues, the Wnt genes, play critical roles in the generation of embryonic pattern. In the developing Drosophila epidermis, wg is expressed in a single row of cells in each segment, but it influences cell identities in all rows of epidermal cells in the 10- to 12-cell-wide segment. Wg signaling promotes specification of two distinct aspects of the wild-type i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1996
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.93.6.2365