Blog Post #7

Here is a picture of the brassica we used. Below are close up pictures of different parts of the plant.

This is a picture of the anther with a stigma on it. The anther is the male reproductive system and it holds pollen/sperm cells and the stigma is the female reproductive system. The anther helps pollinate by rubbing its pollen on bees that have landed on the plant.

This part of the flower is called the stigma. On the plant, the stigma is the site where germination of pollen grains occur. Along with the style and ovary, the stigma is also part of another one of the flower's structures called the pistil.

This part is the ovule.  Each ovule is attached by its base to the stalk that holds it. A small opening in the integuments at the apex of the ovule allows the pollen tube to enter and discharge its sperm nuclei into the embryo sac, a large ovular cell in which fertilization and development can occur.

This picture shows the pollen grains close up.