Related Experiment Video
Updated: Jun 5, 2026

A Strategy to Validate the Role of Callose-mediated Plasmodesmal Gating in the Tropic Response
Published on: April 17, 2016
Exploring the link between auxin receptors, rapid cell elongation and organ tropisms
Benjamin Möller1, Daniel Schenck1, Hartwig Lüthen1
1Biozentrum Flottbek der Universität, Hamburg, Germany.
Abstract:
Auxin receptor F-box proteins of the TIR1/AFB family are known to regulate auxin-induced gene expression. We could demonstrate that rapid auxin-induced hypocotyl elongation, the most classical auxin response, is only mildly affected in Arabidopsis plants in which most of the receptor genes have been knocked out, while gene expression is almost completely abolished. Here we test the same receptor mutant plants for their gravitropic and phototropic responsiveness, generally considered to base on auxin gradients across the hypocotyl.
Related Concept Videos
Cell Signaling in Plants
Responses to Gravity and Touch
Plant Hormones
Morphogenesis
Short-distance Transport of Resources

