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strigolactone

botany

Learn about this topic in these articles:

parasitic plants

  • Dodder flowers
    In parasitic plant: Host identification

    …a chemical signal (generally a strigolactone, a type of plant hormone) exuded from the host root, which triggers germination of the parasite seed. The parasite radicle (embryonic root) then grows a short distance, typically less than 2 mm (0.08 inch), to contact the host root and produce a haustorium.

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