from these results we conclude that the enzymes involved in transcription and processing of chloroplast rrna are synthesized on cytoplasmic ribosomes and that the plastid ribosome deficiency in albostrians barley is probably not caused by a defective chloroplast dna dependent rna polymerase or by a mutation in the genes of 23s and 16s chloroplast rrna .
C0010834
cytoplasmic
C0035553
ribosomes