Research CommentariesBOTANY

Plants See the Blue Light

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Science  27 Feb 1998:
Vol. 279, Issue 5355, pp. 1323-1324
DOI: 10.1126/science.279.5355.1323

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Plants can sense day length and use this information to trigger flowering. As described in a research commentary by Suárez-López and Coupland, work published in this issue ( Guo et al .) describes a new photoperiod receptor, one that detects blue light, in the plant Arabidopsis. This result now allows us to outline the events that trigger this crucial plant response.