Why do many plants have specialized cells that produce strong odors

The flowers of various plant species exhibit specialized cells that generate scents. This scent is generally a composite mixture of low molecular weight compounds discharged by flowers into the atmosphere and its color, structure, and odor are the critical elements in fascinating pollinators.  

Though the flowers can be similar in their shape and color, however, no two floral scents will be exactly the same due to the huge diversity of volatile components and their comparative abundances and associations. Therefore, the scent is a signal, which directs pollinators towards a specific flower whose pollen or nectar is the reward.  

The scents discharged from the flowers work as both short and long-distance attractants and perform an essential function in the selection and localization of flowers by insects, mainly the moth-pollinated flowers. The species of flowers pollinated by flies and bees emit sweet scents, while those pollinated by beetles exhibit spicy, musty, or fruity odors.  

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