Mutants of circadian-associated PRR genes display a novel and visible phenotype as to light responses during de-etiolation of Arabidopsis thaliana seedlings
Mutants of circadian-associated PRR genes display a novel and visible phenotype as to light responses during de-etiolation of Arabidopsis thaliana seedlings
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DOI：
10.1271/bbb.60642
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发表时间：
2007-03-01
影响因子：
1.6
通讯作者：
Mizuno, Takeshi
中科院分区：
文献类型：
--
作者：
Kato, Takahiko;Murakami, Masaya;Mizuno, Takeshi
在拟南芥中，目前公认的是，某些突变体与时钟相关基因的病变通常显示标志性的表型，关于三个特征性的生物学事件：（i）改变节奏的表达昼夜节律控制的基因，（ii）开花时间的变化，和（iii）改变敏感性红光下胚轴伸长。在检查假反应调节因子PRR（包括TOCI（PRRI））的时钟相关突变体的过程中，我们发现它们通常在黄化幼苗开始暴露于光时显示出另一种可见的异常绿化反应表型。这些发现表明了昼夜节律和叶绿体发育之间的新联系。
In Arabidopsis thaliana, it is currently accepted that certain mutants with lesions in clock-associated genes commonly display hallmarked phenotypes with regard to three characteristic biological events: (i) altered rhythmic expression of circadian-controlled genes, (ii) changes in flowering time, and (iii) altered sensitivity to red light in elongation of hypocotyls. During the course of examination of the clock-associated mutants of PSEUDO-RESPONSE REGULATORS, PRRs, including TOCI (PRRI), we found that they commonly show another visible phenotype of anomalous greening responses upon the onset to light exposure of etiolated seedlings. These findings are indicative of a novel link between circadian rhythms and chloroplast development.