Journal Article

Differences in Expression of the <i>RBCS</i> Multigene Family and Rubisco Protein Content in Various Rice Plant Tissues at Different Growth Stages

Yuji Suzuki, Kaori Nakabayashi, Ryuichi Yoshizawa, Tadahiko Mae and Amane Makino

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 50, issue 10, pages 1851-1855
Published in print October 2009 | ISSN: 0032-0781
Published online October 2009 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/pcp120
Differences in Expression of the RBCS Multigene Family and Rubisco Protein Content in Various Rice Plant Tissues at Different Growth Stages

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  • Biochemistry
  • Molecular and Cell Biology
  • Plant Sciences and Forestry

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Four out of five members of the RBCS multigene family (OsRBCS2–OsRBCS5) were highly expressed in leaf blades of rice (Oryza sativa L.) irrespective of plant growth stage, whereas accumulation of all RBCS mRNAs in leaf sheaths, roots and developing spikelets was quite low. A highly positive correlation was observed between total RBCS and RBCL mRNA levels and Rubisco content at their maxima, irrespective of tissue and growth stage. The results indicate that the total RBCS mRNA level may be a primary determinant for maximal Rubisco protein content and that Rubisco gene expression is well coordinated through the whole life of rice.

Keywords: Oryza sativa L.; RBCL,; RBCS multigene family; Rubisco

Journal Article.  2767 words.  Illustrated.

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

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