PT  - JOURNAL ARTICLE
AU  - Guo, Hongwei
AU  - Yang, Hongyun
AU  - Mockler, Todd C.
AU  - Lin, Chentao
TI  - Regulation of Flowering Time by <em>Arabidopsis</em> Photoreceptors
AID  - 10.1126/science.279.5355.1360
DP  - 1998 Feb 27
TA  - Science
PG  - 1360--1363
VI  - 279
IP  - 5355
4099  - http://science.sciencemag.org/content/279/5355/1360.short
4100  - http://science.sciencemag.org/content/279/5355/1360.full
SO  - Science1998 Feb 27; 279
AB  - 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.