a) Growth of pollen tube towards the ovule. Sperm cells exist at the tip of the tube. Pollen tube contents (PTC) are the liquid part of the pollen tube, shown in yellow.

CSLD enzymes and the microfibrils they produce are also essential for pollen tube development and root hair growth in plants. Pollen tubes are necessary for reproduction, and root hairs absorb ...

Germination is the process by which a plant ... by placing pollen onto a stigma and observing it grow into a pollen tube. These short films will be relevant for teaching biology and science ...

The nucleus of the pollen grain passes through the pollen tube and joins with the egg cell inside an ovule in the ovary. Fruit comes from flowering plants, and it is grown in the following process ...