CRY2 is the apoprotein of cryptochrome 2and CRY2 cDNA has been cloned from Sorghum bi-color in this study.

In recent years, great progress has been made in the molecular genetic research of Arabidopsis and other plants, especially in the molecules and genes of cryptochromes and phototropins, and signaling of blue light.

Cryptochrome 1 and cryptochrome 2 are firstly elucidated.

Salicornia europaea and Suaeda salsa seedlings were treated with Hoagland solution added with 0,100,200 or 400 mmol L -1 NaCl, while the seedlings of Limonium bicolor , Atriplex spongiosa , Aleuropus sinensis and Crypsis aculenta were treated with Hoagland solution added with 0,100 or 200 mmol L -1 NaCl.

Proteome Comparative Analysis of Cryptochromes of Arabidopsis;

Cryptochromes are blue light receptors that regulate various photomophogenic responses in plant, including inhibition of hypocotyl elongation, stimulation of cotyledon expansion, and regulation of flowering time.

In higher plants, there are at least three kinds of light receptors to capture light signal: phytochrome, cryptochromes and phototropin, which receptor absorb different spectrum of light.

Thefamily of plants cryptochromes (CRYs) are blue light photoreceptors, whosesignaling pathway is critical for the regulation of the developmental growth.

Cryptochromes are blue light receptors that regulate various photomorphogenesis responses in plants, including inhibition of hypocotyls elongation, stimulation of cotyledon expansion, and regulation of flowering time.

The study shown that many of the cryptochromes were proteins which had a molecular weight of 70-80 kD.