Roles of different phytochromes in Arabidopsis photomorphogenesis
Roles of different phytochromes in Arabidopsis photomorphogenesis
复制标题
DOI：
10.1046/j.1365-3040.1997.d01-100.x
复制
发表时间：
1997-06
影响因子：
7.3
通讯作者：
G. Whitelam;P. F. Devlin
中科院分区：
文献类型：
--
作者：
G. Whitelam;P. F. Devlin
吸收红光/远红光的光敏色素在植物对光环境的感知和随后的生长发育适应中起着重要作用。高等植物具有多个离散的光敏色素，其载脂蛋白是一个家族的发散（PHY）基因的产物。拟南芥至少有5个PHY基因，编码光敏色素A-E载脂蛋白。通过对缺乏光敏色素A或B的突变体和相应的双突变体的分析，我们越来越清楚地看到，这些光敏色素在植物发育过程中发挥着既分散又重叠的作用。通过对phyA phyB双突变体的分析，可以确定几种由光敏色素家族其他成员介导的反应。本文综述了模式植物拟南芥光敏色素缺乏突变体的最新研究进展。
The red/far-red light-absorbing phytochromes play fundamental roles in photoperception of the light environment and the subsequent adaptation of plant growth and development. Higher plants possess multiple, discrete phytochromes, the apoproteins of which are the products of a family of divergent (PHY) genes. Arabidopsis thaliana has at least five PHY genes, encoding the apoproteins of phytochromes A-E. Through the analysis of mutants that are deficient in phytochrome A or B and the corresponding double mutant, it is becoming clear that these phytochromes perform both discrete and overlapping roles throughout plant development. Through analysis of the phyA phyB double mutant, it has been possible to define several responses that are mediated by other members of the phytochrome family. This article reviews some of the recent progress in the study of phytochrome-deficient mutants of the model plant Arabidopsis thaliana.