Specific expression of the chloroplast gene for RNA polymerase (rpoB) at an early stage of leaf development in rice [Oryza sativa]

The rpoB gene for the rβ subunit of rice chloroplast RNA polymerase was found to be highly expressed in unexpanded immature leaves that contained proplastids, indicating the specific expression of rpoB at an early stage of chloroplast development. A putative transcription start site (tss) was identi...

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Bibliographic Details
Published in:Plant and cell physiology 1996-03, Vol.37 (2), p.229-232
Main Authors: Inada, H. (Kyushu Univ., Fukuoka (Japan). Faculty of Science), Kusumi, K, Nishimura, M, Iba, K
Format: Article
Language:English
Subjects:
ARN
Base Sequence
Biological and medical sciences
Chloroplast development
Chloroplast promoter
CHLOROPLASTE
CHLOROPLASTS
Chloroplasts - enzymology
Chloroplasts - genetics
CLOROPLASTO
DNA-Directed RNA Polymerases - genetics
ENZIMAS
ENZYME
ENZYMES
EXPRESION GENICA
EXPRESSION DES GENES
FEUILLE
Fundamental and applied biological sciences. Psychology
GENE EXPRESSION
HOJAS
LEAVES
Molecular and cellular biology
Molecular genetics
Molecular Sequence Data
Oryza - enzymology
Oryza - genetics
ORYZA SATIVA
Plant Leaves - growth & development
Plant Proteins - genetics
RNA
RNA, Plant
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Summary:The rpoB gene for the rβ subunit of rice chloroplast RNA polymerase was found to be highly expressed in unexpanded immature leaves that contained proplastids, indicating the specific expression of rpoB at an early stage of chloroplast development. A putative transcription start site (tss) was identified, but the 5′ upstream region of the tss had no sequences resembling typical –35 and –10 elements. A palindromic sequence and high AT-content were recognized.
ISSN:0032-0781
1471-9053
DOI:10.1093/oxfordjournals.pcp.a028936