| 1. | The sperm are transferred from the pollen through the pollen tube.
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| 2. | During germination, the tube cell elongates into a pollen tube.
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| 3. | Hydration and activation continue as the pollen tube begins to grow.
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| 4. | In angiosperms, only a pollen tube enters the micropyle.
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| 5. | The pollen tube proceeds to release the two sperm in the megagametophyte.
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| 6. | Pollen germination has three stages; hydration, activation and pollen tube emergence.
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| 7. | glucan synthase genes expressed in pollen tubes of Nicotiana alata " ..
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| 8. | It may grow a pollen tube and undergoing mitosis to produce two sperm nuclei.
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| 9. | In botany and palynology, the surface apertures through which the pollen tube germinates.
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| 10. | The sperm cells are carried to their destination in the tip of the pollen tube.
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