Any process that stops, prevents or reduces the frequency, rate or extent of transcription of nuclear large rRNA transcript mediated by RNA polymerase I.
Synonyms:
exact_synonym:
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
narrow_synonym:
inhibition of transcription of nuclear large rRNA transcript from RNA polymerase I promoter