germ tube

noun

1. botany a tube produced by a germinating spore, such as the pollen tube produced by a pollen grain

Example Sentences

Now those all-important flights that meant the difference between staying in the race or being eliminated may register as germ tubes, and yet another reminder of something we still can't do.

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Insects pollinate flowers by depositing pollen on the stigma, whence the pollen grains germinate and send out germ tubes that travel down the style to the ovary.

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The oospore on germination usually gives origin to a zoosporangium, but may form directly a germ tube which infects the host.

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The germ tube is rather smaller at its base than further on.

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