pollen tube

The pollen tube is an excellent model for the understanding of electrotropism and plant cell behavior in general.

The pollen tube passes through the wall by way of structures called apertures.

As the pollen tube grows, it makes its way from the stigma, down the style and into the ovary.

The pollen tube of most seed plants acts as a passageway.

Then it germinates, and grows a long pollen tube.

He was the first to observe the pollen tube.

The pollen tube does not directly reach the ovary in a straight line.

The pollen tube has an unusual kind of growth; it extends exclusively at its apex.

Another report states that pollen tubes do not change growth direction under AC electric fields.