Filament

Definition

A filament is the slender, stalk-like part of the stamen that supports the anther in flowering plants. It plays a crucial role in positioning the anther for effective pollen transfer.

5 Must Know Facts For Your Next Test

1. The filament, along with the anther, makes up the stamen, which is the male reproductive organ of a flower.
2. Filaments can vary greatly in length and thickness depending on the species of plant.
3. They are typically designed to hold the anther in a position where pollinators can easily access pollen.
4. In some plants, filaments may also have glands or other structures that produce nectar or other substances to attract pollinators.
5. The primary function of the filament is mechanical support; it helps ensure that pollen is effectively transferred to pollinators or directly onto receptive stigmas.

Review Questions

• What is the primary role of a filament in flowering plants?
• How do filaments contribute to effective pollination?
• What part of the stamen does the filament support?

Related terms

Anther: The part of a stamen that contains and releases pollen.

Stigma: The part of a flower's pistil where pollen germinates.

Stamen: The collective term for the male reproductive organs in flowers, consisting of filaments and anthers.