Regulations of flowering time by Arabidopsis photoreceptors
Regulations of flowering time by Arabidopsis photoreceptors
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DOI：
10.1126/science.279.5355.1360
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发表时间：
1998-02-27
期刊：
影响因子：
56.9
通讯作者：
Lin, CT
中科院分区：
文献类型：
--
作者：
Guo, HW;Yang, WY;Lin, CT
植物从营养生长到花发育的转变受远红光受体（光敏色素）和蓝紫外线A光受体（隐花色素）的调节。编码蓝光受体脱辅基蛋白（apoprotein，apoprotein 2）的拟南芥apoprotein 2基因突变与晚花突变体fha等位。cry 2/fha突变体植物的开花仅对光周期不完全响应。隐花色素2（cry 2）是开花时间基因CO的正调控因子，其表达受光周期调控。开花cry 2和phyB突变体在不同波长的光响应的分析表明，开花是由phyB和cry 2的拮抗作用。
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.