Bill D. Davis
Abstract
Filamentous young gametophytes of the fern, Pteridium aquilinum, exhibit a positive phototropism in unilateral light. The displacement of artificial markers demonstrated that this new direction of growth was due to the repositioning of the apical growth tip rather than an increased growth on the dark side.
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Filamentous young gametophytes of the fern, Pteridium aquilinum, exhibit a positive phototropism in unilateral light. The displacement of artificial markers demonstrated that this new direction of growth was due to the repositioning of the apical growth tip rather than an increased growth on the dark side.
Key concepts: Fern, Pteridium aquilinum, Gametophyte, Protonema, Phototropism, Botany, Rhizoid, Biology