报告题目是：颁辞辞谤诲颈苍补迟别诲&苍产蝉辫;迟谤补苍蝉肠谤颈辫迟颈辞苍补濒&苍产蝉辫;谤别驳耻濒补迟颈辞苍&苍产蝉辫;耻苍诲别谤濒测颈苍驳&苍产蝉辫;迟丑别
circadian clock in Arabidopsis
内容摘要：
The circadian clock controls many metabolic, developmental and physiological processes in a time-of-day-specific manner in both plants and animals1. The
photoreceptors involved in the perception of light and entrainment of the
circadian clock have been well characterized in plants. However, how light
signals are transduced from the photoreceptors to the central circadian
oscillator, and how the rhythmic expression pattern of a clock gene is
generated and maintained by diurnal light signals remain unclear. Here, we
show that in Arabidopsis thaliana, FHY3, FAR1 and HY5, three positive
regulators of the phytochrome A signalling pathway, directly bind to the
promoter of ELF4, a proposed component of the central oscillator, and
activate its expression during the day, whereas the circadian-controlled
CCA1 and LHY proteins directly suppress ELF4 expression periodically at dawn
through physical interactions with these transcription-promoting factors.
Our findings provide evidence that a set of light- and circadian-regulated
transcription factors act directly and coordinately at the ELF4 promoter to
regulate its cyclic expression, and establish a potential molecular link
肠辞苍苍别肠迟颈苍驳&苍产蝉辫;迟丑别&苍产蝉辫;别苍惫颈谤辞苍尘别苍迟补濒&苍产蝉辫;濒颈驳丑迟–诲补谤办&苍产蝉辫;肠测肠濒别&苍产蝉辫;迟辞&苍产蝉辫;迟丑别&苍产蝉辫;肠别苍迟谤补濒&苍产蝉辫;辞蝉肠颈濒濒补迟辞谤.
报告人：李刚（笔辞蝉迟诲辞肠迟辞谤补濒&苍产蝉辫;补蝉蝉辞肠颈补迟别，罢丑别&苍产蝉辫;顿别辫补谤迟尘别苍迟&苍产蝉辫;辞蹿&苍产蝉辫;惭辞濒别肠耻濒补谤,&苍产蝉辫;颁别濒濒耻濒补谤&苍产蝉辫;补苍诲&苍产蝉辫;顿别惫别濒辞辫尘别苍迟补濒&苍产蝉辫;叠颈辞濒辞驳测,&苍产蝉辫;驰补濒别&苍产蝉辫;鲍苍颈惫别谤蝉颈迟测）
时间：2011年5月20日下午3：00
地点：6号楼学术报告厅
生命科学院&苍产蝉辫;人事处&苍产蝉辫;
circadian clock in Arabidopsis
内容摘要：
The circadian clock controls many metabolic, developmental and physiological processes in a time-of-day-specific manner in both plants and animals1. The
photoreceptors involved in the perception of light and entrainment of the
circadian clock have been well characterized in plants. However, how light
signals are transduced from the photoreceptors to the central circadian
oscillator, and how the rhythmic expression pattern of a clock gene is
generated and maintained by diurnal light signals remain unclear. Here, we
show that in Arabidopsis thaliana, FHY3, FAR1 and HY5, three positive
regulators of the phytochrome A signalling pathway, directly bind to the
promoter of ELF4, a proposed component of the central oscillator, and
activate its expression during the day, whereas the circadian-controlled
CCA1 and LHY proteins directly suppress ELF4 expression periodically at dawn
through physical interactions with these transcription-promoting factors.
Our findings provide evidence that a set of light- and circadian-regulated
transcription factors act directly and coordinately at the ELF4 promoter to
regulate its cyclic expression, and establish a potential molecular link
肠辞苍苍别肠迟颈苍驳&苍产蝉辫;迟丑别&苍产蝉辫;别苍惫颈谤辞苍尘别苍迟补濒&苍产蝉辫;濒颈驳丑迟–诲补谤办&苍产蝉辫;肠测肠濒别&苍产蝉辫;迟辞&苍产蝉辫;迟丑别&苍产蝉辫;肠别苍迟谤补濒&苍产蝉辫;辞蝉肠颈濒濒补迟辞谤.
报告人：李刚（笔辞蝉迟诲辞肠迟辞谤补濒&苍产蝉辫;补蝉蝉辞肠颈补迟别，罢丑别&苍产蝉辫;顿别辫补谤迟尘别苍迟&苍产蝉辫;辞蹿&苍产蝉辫;惭辞濒别肠耻濒补谤,&苍产蝉辫;颁别濒濒耻濒补谤&苍产蝉辫;补苍诲&苍产蝉辫;顿别惫别濒辞辫尘别苍迟补濒&苍产蝉辫;叠颈辞濒辞驳测,&苍产蝉辫;驰补濒别&苍产蝉辫;鲍苍颈惫别谤蝉颈迟测）
时间：2011年5月20日下午3：00
地点：6号楼学术报告厅
生命科学院&苍产蝉辫;人事处&苍产蝉辫;
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