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. 1998 Feb 27;279(5355):1360-3.
doi: 10.1126/science.279.5355.1360.

Regulation of flowering time by Arabidopsis photoreceptors

H Guo  1 , H Yang, T C Mockler, C Lin
Affiliations

Regulation of flowering time by Arabidopsis photoreceptors

H Guo et al. Science. .

Abstract

The shift in plants from vegetative growth to floral development is regulated by red-far-red light receptors (phytochromes) and blue-ultraviolet A light receptors (cryptochromes). A mutation in the Arabidopsis thaliana CRY2 gene encoding a blue-light receptor apoprotein (CRY2) is allelic to the late-flowering mutant, fha. Flowering in cry2/fha mutant plants is only incompletely responsive to photoperiod. Cryptochrome 2 (cry2) is a positive regulator of the flowering-time gene CO, the expression of which is regulated by photoperiod. Analysis of flowering in cry2 and phyB mutants in response to different wavelengths of light indicated that flowering is regulated by the antagonistic actions of phyB and cry2.

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  • Plants see the blue light.
    Suárez-López P, Coupland G. Suárez-López P, et al. Science. 1998 Feb 27;279(5355):1323-4. doi: 10.1126/science.279.5355.1323. Science. 1998. PMID: 9508709 No abstract available.

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