How plants use scoop-shaped pores to distribute their pollen efficiently‎

Bees are the most important pollinators of flowering plants, and approximately 10% of flowering plants are functionally specialized for buzz pollination. Buzz pollination is a mechanism in which pollen can be extracted from flowers only through the application of mechanical vibrations. Many important crops, such as tomatoes, eggplants and blueberries, are buzz-pollinated because they conceal their pollen in so-called poricidal anthers—floral structures with only a minute opening through which pollen can be released only when mechanical vibrations are applied.