EnvReg213-page8

EnvReg213-page8 - wavelengths of light. Phytochrome...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Plant Environmental Regulators - 8 Lettuce germination rates relative to red and far-red light exposure The USDA team concluded that a molecule that had two interconvertable forms and was sensitive to both red and far-red light was responsible for the light sensitive responses in both flowering and in seed germination. Phytochrome is a blue or blue-green pigment that absorbs red and far-red
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: wavelengths of light. Phytochrome Absorption Spectrum Phytochrome is comprised of two identical protein molecules, each of which has a light absorbing portion, called the chromophore, and a protein portion, consisting of two domains: photoreceptor and kinase activity. Phytochrome structure Phytochrome chromophore...
View Full Document

Ask a homework question - tutors are online