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Production of an Insect Sex Attractant by Symbiotic Bacteria
Production of an Insect Sex Attractant by Symbiotic Bacteria | Nature
Pheromones are chemicals emitted and secreted by an individual and received by another individual of the same species, in which they induce a species specific reaction. By far the greatest variety of pheromone-mediated systems occurs among insects. Sex pheromones chemicals, or blends of chemicals, emitted by an individual of one sex for the purpose of inducing sexual behaviors by members of the opposite sex are the only pheromone mediated system in common usage by members of all insect orders. This undoubtedly stems from the universal need to reproduce and the development of chemosensory organs early in the evolutionary history of Hexapoda, perhaps even before the development of light-sensitive organs. In general, sex pheromones act as sexual attractants when they induce the receiving sex to move toward the releasing sex or as copulatory stimulants, or aphrodisiacs, when released or perceived in close proximity to the receiving sex to induce a receptivity or copulatory behaviors
Many insects produce a sex-attractant pheromone , by which one sex attracts the other from a distance. Among moths , it is common for the female to produce a sex-attractant pheromone. For example, female gypsy moths , which are flightless despite having fully developed wings, and female bagworms , which do not have wings, depend wholly on the power of their sexual odour to attract a mate.