Posttranscriptional gene silencing (PTGS) in plants is a form of RNA silencing by which target RNA is degraded in a sequence-specific manner.

植物中的转录后基因沉默(PTGS)是RNA沉默的一种形式，通过PTGS能对目标RNA进行特异性降解。

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In this paper, the affection of PTGS in virus resistance, PTGS mechanism model, transmission of silence message and suppression of virus protein to PTGS are reviewed.

本文通过病毒防御作用、作用模式、沉默信号的传递特点和植物病毒对转录后基因沉默的抑制作用四方面对植物中转录后基因沉默现象进行综述。

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This paper presents the studies of the dependence of soft X-ray emission on atomic-number and laser intensities by using a new diagnostic tool, pinhole transmission grating spectrograph (PTGS).

利用带有针孔的透射式光栅光谱仪研究了激光等离子体X射线辐射的原子序数依赖性和激光功率密度对辐射的影响。

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The paper in PNAS suggests that the actual positioning of the motifs is associated with small RNA molecules that are involved with a process called post-transcriptional gene silencing (PTGS).

BBC: NEWS | Science/Nature | Salvage prospect for 'junk' DNA