Role of olfaction in Octopus vulgaris reproduction
| Autor: | Anna Di Cosmo, Gianluca Polese, Carla Bertapelle |
|---|---|
| Přispěvatelé: | Polese, Gianluca, Bertapelle, Carla, DI COSMO, Anna |
| Rok vydání: | 2015 |
| Předmět: |
Olfactory system
Olfactory Pathway Octopodiformes Central nervous system Zoology Context (language use) Sensory system Olfaction Cephalopod Olfactory organ Octopus Endocrinology biology.animal Odor medicine Animals Humans Behavior Animal biology Animal Ecology Reproduction Neuropeptides Brain Olfactory Pathways biology.organism_classification Octopus vulgari Smell Neuropeptide Olfactory Cortex medicine.anatomical_structure Odorants Animal Science and Zoology Olfactory Lobe Human Octopodiforme |
| Zdroj: | General and Comparative Endocrinology. 210:55-62 |
| ISSN: | 0016-6480 |
| DOI: | 10.1016/j.ygcen.2014.10.006 |
| Popis: | The olfactory system in any animal is the primary sensory system that responds to chemical stimuli emanating from a distant source. In aquatic animals "Odours" are molecules in solution that guide them to locate food, partners, nesting sites, and dangers to avoid. Fish, crustaceans and aquatic molluscs possess sensory systems that have anatomical similarities to the olfactory systems of land-based animals. Molluscs are a large group of aquatic and terrestrial animals that rely heavily on chemical communication with a generally dispersed sense of touch and chemical sensitivity. Cephalopods, the smallest class among extant marine molluscs, are predators with high visual capability and well developed vestibular, auditory, and tactile systems. Nevertheless they possess a well developed olfactory organ, but to date almost nothing is known about the mechanisms, functions and modulation of this chemosensory structure in octopods. Cephalopod brains are the largest of all invertebrate brains and across molluscs show the highest degree of centralization. The reproductive behaviour of Octopus vulgaris is under the control of a complex set of signal molecules such as neuropeptides, neurotransmitters and sex steroids that guide the behaviour from the level of individuals in evaluating mates, to stimulating or deterring copulation, to sperm-egg chemical signalling that promotes fertilization. These signals are intercepted by the olfactory organs and integrated in the olfactory lobes in the central nervous system. In this context we propose a model in which the olfactory organ and the olfactory lobe of O. vulgaris could represent the on-off switch between food intake and reproduction. |
| Databáze: | OpenAIRE |
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