منابع مشابه
RNA silencing movement in plants.
Multicellular organisms, like higher plants, need to coordinate their growth and development and to cope with environmental cues. To achieve this, various signal molecules are transported between neighboring cells and distant organs to control the fate of the recipient cells and organs. RNA silencing produces cell non-autonomous signal molecules that can move over short or long distances leadin...
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P lant microRNAs (miRNAs) regulate endogenous gene expression by recruiting silencing factors to complementary binding sites in target transcripts. Small-interfering RNAs (siRNAs) from transgenes or viruses also guide silencing effector complexes to their targets. But unlike most miRNAs, siRNAs can additionally initiate the production of a second wave of siRNAs, called secondary (2°) or “transi...
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Earlier this year plant scientists met in Santa Fe, New Mexico at the Keystone Symposium "RNA Silencing Mechanisms in Plants". Sessions included small RNA biogenesis and signalling, development and stress responses, small RNA-directed DNA methylation, and interaction with pathogens. This report highlights some of the prominent and recurring themes at the meeting and emerging arenas of future re...
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Much progress has been made recently in identifying the molecular components of RNA silencing in plants, and in understanding their roles in the biogenesis of small interfering RNAs and microRNAs, in RNA-directed DNA methylation, and in RNA-mediated antiviral defense. However, many crucial questions remain unanswered. What are the molecular bases of sense and antisense transgene-mediated silenc...
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Initiation of RNA polymerase II transcription signals the beginning of a series of physically and functionally coupled pre-mRNA processing events that transform an RNA transcript into a highly structured, mature ribonucleoprotein complex. With such a complexity of co-transcriptional processes comes the need to identify and degrade improperly processed transcripts. Quality control of mRNA expres...
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ژورنال
عنوان ژورنال: The Biochemist
سال: 2015
ISSN: 0954-982X,1740-1194
DOI: 10.1042/bio03702010