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题名: Sugar is an endogenous cue for juvenile-to-adult phase transition in plants
作者: Yu, Sha1, 2; Cao, Li2, 3, 4; Zhou, Chuan-Miao1; Zhang, Tian-Qi1, 2; Lian, Heng1; Sun, Yue5; null(吴建强)6; Huang, Jirong1; Wang, Guodong3, 4; Wang, Jia-Wei1
刊名: ELIFE
关键词: ARABIDOPSIS-THALIANA ; SIGNAL-TRANSDUCTION ; TRANSCRIPTION ; MICRORNAS ; SERRATE ; EXPRESSION ; SUCROSE ; COMPLEX ; MIR156 ; GENE
英文摘要: The transition from the juvenile to adult phase in plants is controlled by diverse exogenous and endogenous cues such as age, day length, light, nutrients, and temperature. Previous studies have shown that the gradual decline in microRNA156 (miR156) with age promotes the expression of adult traits. However, how age temporally regulates the abundance of miR156 is poorly understood. We show here that the expression of miR156 responds to sugar. Sugar represses miR156 expression at both the transcriptional level and post-transcriptional level through the degradation of miR156 primary transcripts. Defoliation and photosynthetic mutant assays further demonstrate that sugar from the pre-existing leaves acts as a mobile signal to repress miR156, and subsequently triggers the juvenile-to-adult phase transition in young leaf primordia. We propose that the gradual increase in sugar after seed germination serves as an endogenous cue for developmental timing in plants.
出版日期: 2013-03-26
卷号: 2, 期号:1, 页码:00269
DOI标识: 10.7554/eLife.00269
语种: 英语
收录类别: SCI
ISSN号: 2050-084X
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/17509
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol, Natl Key Lab Plant Mol Genet, Shanghai, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
3.Chinese Acad Sci, State Key Lab Plant Genom, Beijing, Peoples R China
4.Chinese Acad Sci, Natl Ctr Plant Gene Res, Inst Genet & Dev Biol, Beijing, Peoples R China
5.E China Normal Univ, Sch Life Sci, Shanghai 200062, Peoples R China
6.Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Kunming, Peoples R China

Recommended Citation:
Yu, Sha,Cao, Li,Zhou, Chuan-Miao,et al. Sugar is an endogenous cue for juvenile-to-adult phase transition in plants[J]. ELIFE,2013,2(1):00269.
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文件名: 2013 eLife_ShaYu Sugar&miR156.pdf
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