GLR (IMAGE)

University of Maryland

GLR

Caption

At left, normal Arabidopsis thaliana plants reproduce when pollen tubes (thin blue filaments) grow downward toward the ovules to produce seeds. At right, in a plant with a mutated glutamate receptor-like protein gene, this process happens much more slowly. Arrows in both images mark the advance of the pollen tubes at exactly the same time after pollination.

Credit

José Feijó/University of Maryland

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