The tube grows from the tip and a calcium-ATPase may be responsible for providing the energy for this rapid growth. If you wish to use this lab solely to view pollen tubes and cytoplasmic streaming, we recommend germinating the pollen on Medium B or Medium D . Media C and E are used for extensions, only. Heat to boiling and pour into petri dishes. Heat to boiling and pour into petri dishes.
Water is placed in the bottom of the dish and a slide is placed on top of the bent glass.
When the dish is covered, this maintains a humid environment to promote growth of the pollen. The teacher may prepare these growth chambers, or the students could bend the glass and prepare the chambers themselves. Flower parts and their functions 2. How the sperm arrive at the ovum in plants 2. Requirements for pollen tube growth to top The Student Lab to top Introduction Pollen is everywhere.