Journal Article

The Plastid <i>clpP</i> Gene May Not be Essential for Plant Cell Viability

A. Bruce Cahoon, Katherine A. Cunningham and David B. Stern

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 44, issue 1, pages 93-95
Published in print January 2003 | ISSN: 0032-0781
Published online January 2003 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/pcg003
The Plastid clpP Gene May Not be Essential for Plant Cell Viability

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The plastid gene clpP is widely regarded as essential for chloroplast function and general plant cell survival. In this note we provide evidence that certain lines of non-photosynthetic maize (Zea mays) Black Mexican Sweet (BMS) suspension cells do not carry clpP in their plastid genomes. We also discuss several incidences in the literature where clpP is either missing or not expressed in other non-green cell lines and plants. We conclude that clpP is not required for general plant cell survival but instead may only be essential for the development and/or function of plastids with active gene expression.

Keywords: Keywords: BMS — Clp protease — Maize — Plastid.

Journal Article.  1968 words.  Illustrated.

Subjects: Biochemistry ; Molecular and Cell Biology ; Plant Sciences and Forestry

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