Biological process

down regulation of transcription of nuclear large rRNA transcript from RNA polymerase I promoter, down regulation of transcription of nuclear rRNA large Pol I transcript, down-regulation of transcription of nuclear large rRNA transcript from RNA polymerase I promoter, down-regulation of transcription of nuclear rRNA large Pol I transcript, downregulation of transcription of nuclear large rRNA transcript from RNA polymerase I promoter, downregulation of transcription of nuclear rRNA large Pol I transcript, inhibition of transcription of nuclear rRNA large Pol I transcript, negative regulation of transcription of nuclear large rRNA transcript from RNA polymerase I promoter, negative regulation of transcription of nuclear rRNA large Pol I transcript

Any process that stops, prevents or reduces the frequency, rate or extent of transcription of nuclear large rRNA transcript mediated by RNA polymerase I.