Plant developmental transitions: the role of microRNAs and sugars.
Plant developmental transitions: the role of microRNAs and sugars.
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DOI：
10.1016/j.pbi.2015.05.009
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发表时间：
2015-10
影响因子：
9.5
通讯作者：
Sha Yu;Heng Lian;Jia-Wei Wang
中科院分区：
文献类型：
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作者：
Sha Yu;Heng Lian;Jia-Wei Wang
HighlightsmiRNA在植物发育时序中起着至关重要的作用。时序机制在植物中是进化保守的。糖是植物发育时序的新兴调节剂。是什么决定了多细胞生物衰老的速度是生物学中的一个谜。在植物中，形态和生理性状的变化是发育转变的标志。拟南芥突变体的特征和遗传分析描绘了一个进化上保守的microRNA156（miR156）指导的定时机制，在发育过程中时间调节生物过程的许多方面。最近的研究表明，糖代谢产物，光合作用的产物，通过调节miR156水平进入这个发育计时器，从而确保每个发育过渡发生在有利的条件下。
HighlightsmiRNA plays crucial roles in plant developmental timing.The timing mechanism is evolutionarily conserved among plants.Sugar is an emerging regulator for plant developmental timing.What determines the rate at which a multicellular organism ages is a mystery in biology. In plants the changes in morphological and physiological traits serve as markers for the developmental transitions. Mutant characterizations and genetic analyses in Arabidopsis thaliana delineate an evolutionarily conserved, microRNA156 (miR156)-guided timing mechanism that temporally regulates many aspects of biological processes during development. Recent studies now reveal that sugar metabolites, the products of photosynthesis, feed into this developmental timer by regulating miR156 levels, thereby ensuring that each developmental transition occurs under favorable conditions.