Molecular cloning and characterization of two complementary DNAs encoding putative peroxidases from rice (Oryza sativa L.) shoots

Hiroyuki Ito, Fusao Kimizuka, Akira Ohbayashi, Hirokazu Matsui, Mamoru Honma, Atsuhiko Shinmyo, Yuko Ohashi, Alan B. Caplan, Raymond L. Rodriguez

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

PCR with oligonucleotide primers that corresponded to two highly homologous regions, in terms of amino acid sequence, of plant peroxidases was used to amplify a specific DNA fragment from a mixture of rice (Oryza sativa L.) cDNAs. We then screened a cDNA library prepared from mRNAs of rice shoots utilizing the product of PCR as probe. Two cDNA clones, prxRPA and prxRPN, were isolated. They encode distinct isozymes of peroxidase. Sequence analysis indicated that the clones encode mature proteins of approximately 32 kDa, both of which possess a putative signal peptide. Comparison of the amino acid sequences of the two rice peroxidases showed that they are about 70% similar to each other but are only 40% to 50% similar to other plant peroxidases. RNA blot hybridization revealed that mRNAs that corresponded to prxRPA and prxRPN cDNAs accumulate at high levels in roots but only at low levels in stems and leaves. In various tissues of rice plants, levels of both mRNAs were stimulated by wounding and by ethephon. These results indicate that at least two isozymes of peroxidase are expressed not only in shoots but also in roots of rice plants, and that the expression of these genes is influenced by ethylene which is the simplest plant hormone.

Original languageEnglish (US)
Pages (from-to)361-366
Number of pages6
JournalPlant Cell Reports
Volume13
Issue number7
DOIs
StatePublished - Apr 1994

Fingerprint

complementary DNA
peroxidases
molecular cloning
Oryza sativa
rice
shoots
isozymes
peroxidase
amino acid sequences
clones
ethephon
DNA primers
signal peptide
cDNA libraries
plant hormones
ethylene
hybridization
sequence analysis
RNA
gene expression

ASJC Scopus subject areas

  • Plant Science

Cite this

Ito, H., Kimizuka, F., Ohbayashi, A., Matsui, H., Honma, M., Shinmyo, A., ... Rodriguez, R. L. (1994). Molecular cloning and characterization of two complementary DNAs encoding putative peroxidases from rice (Oryza sativa L.) shoots. Plant Cell Reports, 13(7), 361-366. https://doi.org/10.1007/BF00234138

Molecular cloning and characterization of two complementary DNAs encoding putative peroxidases from rice (Oryza sativa L.) shoots. / Ito, Hiroyuki; Kimizuka, Fusao; Ohbayashi, Akira; Matsui, Hirokazu; Honma, Mamoru; Shinmyo, Atsuhiko; Ohashi, Yuko; Caplan, Alan B.; Rodriguez, Raymond L.

In: Plant Cell Reports, Vol. 13, No. 7, 04.1994, p. 361-366.

Research output: Contribution to journalArticle

Ito, H, Kimizuka, F, Ohbayashi, A, Matsui, H, Honma, M, Shinmyo, A, Ohashi, Y, Caplan, AB & Rodriguez, RL 1994, 'Molecular cloning and characterization of two complementary DNAs encoding putative peroxidases from rice (Oryza sativa L.) shoots', Plant Cell Reports, vol. 13, no. 7, pp. 361-366. https://doi.org/10.1007/BF00234138
Ito, Hiroyuki ; Kimizuka, Fusao ; Ohbayashi, Akira ; Matsui, Hirokazu ; Honma, Mamoru ; Shinmyo, Atsuhiko ; Ohashi, Yuko ; Caplan, Alan B. ; Rodriguez, Raymond L. / Molecular cloning and characterization of two complementary DNAs encoding putative peroxidases from rice (Oryza sativa L.) shoots. In: Plant Cell Reports. 1994 ; Vol. 13, No. 7. pp. 361-366.
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