In what type of structures are pollen grains stored ?

Pollen grains are stored in:

1. Anthers: The male reproductive organs of flowers, where pollen grains are produced and mature.
2. Pollen sacs: Specialized structures within the anthers that contain the pollen grains.
3. Pollen baskets (Corbiculae): Specialized structures on the legs of bees and other pollinators that collect and transport pollen grains.
4. Pollen storage units (PSUs): Specialized structures in some plants, like orchids, that store pollen grains.
5. Pollinia: Specialized structures in some plants, like orchids and milkweeds, that package pollen grains together.

After pollination, pollen grains are stored in the:

1. Stigma: The female reproductive organ of flowers, where pollen grains germinate and form the pollen tube.
2. Style: The narrow tube that connects the stigma to the ovary, through which the pollen tube grows.
3. Ovary: The female reproductive organ that contains the ovules (eggs), where fertilization occurs.

Understanding pollen storage is important in plant reproduction, pollination biology, and ecology.