Transcription of plastid genes in higher plants is driven by two RNA polymerases. One is encoded in the chloroplast, the other is encoded in the nucleus. RNA synthesis in ribosome-deficient plastids is performed exclusively by the nuclear-encoded enzyme. In vitro capping was used to identify the transcriptional start sites of the genes clpP and rpl23 in ribosome-free plastids of the barley mutant albostrians. No transcript initiation was found at sequences similar to eubacterial promoters. Instead, transcription started near the motif 5′-YRTA-3′, which is also conserved in mitochondrial promoters of higher plants. Our data suggest that the nuclear encoded RNA polymerase is active in mature chloroplasts and is the sole polymerase involved in transcription of rpl123.
Plant Molecular Biology – Springer Journals
Published: Oct 6, 2004
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera