Related Experiment Video
Updated: May 3, 2026

Long-term, High-resolution Confocal Time Lapse Imaging of Arabidopsis Cotyledon Epidermis during Germination
Published on: December 31, 2012
Phytochrome appearance and distribution in the embryonic axis and seedling of Alaska peas
1Department of Biological Sciences, Stanford University, Stanford, California.
Abstract:
Apparent synthesis of phytochrome has been observed in the embryonic axis of germinating Alaska pea and in the young seedling. The onset of photoreversibility can be delayed, and the amount of phytochrome appearing in a plant of a given size somewhat decreased, by treatment with cycloheximide in appropriate concentrations. Similar concentrations of cycloheximide also reduce elongation. Soaking seeds in water at 4° for 24 hr also prevents the onset of photoreversibility in the embryonic axis. The pattern of phytochrome appearance, and the distribution of relative amounts of phytochrome, suggest that synthesis may be closely related to general protein synthesis during elongation.
More Related Videos
Related Concept Videos
Photoreceptors and Plant Responses to Light
Biological Clocks and Seasonal Responses
Cell Signaling in Plants
Seed Structure and Early Development of the Sporophyte
Monohybrid Crosses

