RNA processing in plant mitochondria is independent of transcription

RNA processing in plant mitochondria is independent of transcription We analyzed the ability of plant mitochondria to process introduced RNA. Arabidopsis thaliana cox2 transcripts were synthesized in vitro. The in vitro transcribed mRNA was electroporated into maize and cauliflower mitochondria and incubated in organello. RNA was isolated and RT-PCR was carried out to analyze RNA processing. Our data indicate that cox2 transcripts introduced into isolated plant mitochondria are processed completely. This is the first report of in organello editing of introduced transcripts. We also found that none of the transcription, translation, or respiration inhibitors we used influenced RNA splicing or RNA editing of the cox2 transcript. Thus, our data also demonstrate that plant mitochondrial RNA processing may be independent of both transcription and respiratory regulation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

RNA processing in plant mitochondria is independent of transcription

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Publisher
Springer Journals
Copyright
Copyright © 2009 by Springer Science+Business Media B.V.
Subject
Life Sciences; Plant Pathology; Biochemistry, general; Plant Sciences
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1007/s11103-009-9498-6
Publisher site
See Article on Publisher Site

Abstract

We analyzed the ability of plant mitochondria to process introduced RNA. Arabidopsis thaliana cox2 transcripts were synthesized in vitro. The in vitro transcribed mRNA was electroporated into maize and cauliflower mitochondria and incubated in organello. RNA was isolated and RT-PCR was carried out to analyze RNA processing. Our data indicate that cox2 transcripts introduced into isolated plant mitochondria are processed completely. This is the first report of in organello editing of introduced transcripts. We also found that none of the transcription, translation, or respiration inhibitors we used influenced RNA splicing or RNA editing of the cox2 transcript. Thus, our data also demonstrate that plant mitochondrial RNA processing may be independent of both transcription and respiratory regulation.

Journal

Plant Molecular BiologySpringer Journals

Published: May 3, 2009

References

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