Regulations of flowering time by Arabidopsis photoreceptors

被引：636

作者：

Guo, HW

Yang, WY

Mockler, TC

Lin, CT ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Mol Cell & Dev Biol, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Inst Mol Biol, Los Angeles, CA 90095 USA

来源：

SCIENCE | 1998年 / 279卷 / 5355期

关键词：

D O I：

10.1126/science.279.5355.1360

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 [理学]; 0710 [生物学]; 09 [农学];

摘要：

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.

引用

页码：1360 / 1363

页数：4

共 46 条

[1]

Seeing blue: The discovery of cryptochrome [J].