Related Experiment Video
Updated: Aug 15, 2026

A Seed Coat Bedding Assay to Genetically Explore In Vitro How the Endosperm Controls Seed Germination in Arabidopsis thaliana
Published on: November 9, 2013
G protein signaling in the regulation of Arabidopsis seed germination
1Biology Department, Penn State University, 208 Mueller Laboratory, University Park, PA 16802, USA. sma3@psu.edu
Abstract:
Seed germination and early seedling growth are regulated by an intricate network of hormonal signaling pathways. The plant hormones gibberellic acid (GA) and brassinosteroids (BRs) are important positive regulators of these processes, whereas the hormone abscisic acid (ABA) is a potent negative regulator. In Arabidopsis, analysis of mutant plants has implicated heterotrimeric guanine nucleotide-binding protein (G protein) components in regulation of seed germination by all three of these hormones.
Related Concept Videos
Cell Signaling in Plants
Activation and Inactivation of G Proteins
GTPases and their Regulation
Large G-proteins, also known...
Amplifying Signals via Enzymatic Cascade

