A New Peroxidase cDNA from White Clover: Its Characterization and Expression in Root Tissue Challenged with Homologous Rhizobia, Heterologous Rhizobia, or Pseudomonas syringae

Temporal reverse transcription-polymerase chain reaction (RT-PCR) expression analyses were performed on Trprx2, a new white clover peroxidase, with roots challenged with homologous rhizobia, heterologous rhizobia, and a pathogen, Pseudomonas syringae. Low levels of Trprx2 expression were evident in...

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Main Authors: Martin A. Crockard, Anthony J. Bjourson, James E. Cooper
Format: Article
Language:English
Published: The American Phytopathological Society 1999-09-01
Series:Molecular Plant-Microbe Interactions
Online Access:https://apsjournals.apsnet.org/doi/10.1094/MPMI.1999.12.9.825
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author Martin A. Crockard
Anthony J. Bjourson
James E. Cooper
author_facet Martin A. Crockard
Anthony J. Bjourson
James E. Cooper
author_sort Martin A. Crockard
collection DOAJ
description Temporal reverse transcription-polymerase chain reaction (RT-PCR) expression analyses were performed on Trprx2, a new white clover peroxidase, with roots challenged with homologous rhizobia, heterologous rhizobia, and a pathogen, Pseudomonas syringae. Low levels of Trprx2 expression were evident in all rhizobial treatments but in P.syringae-treated clover background expression was dramatically reduced within 1 h and was undetectable in treatments inoculated for more than 3 h. Spraying 4 mM salicylic acid onto seedlings increased Trprx2 expression. These data suggest a defensive role for Trprx2 in white clover and indicate active defense suppression by the pathogen.
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spelling doaj.art-04e489935cd74ee98f7793f836aec6a62022-12-21T20:01:00ZengThe American Phytopathological SocietyMolecular Plant-Microbe Interactions0894-02821943-77061999-09-0112982582810.1094/MPMI.1999.12.9.825A New Peroxidase cDNA from White Clover: Its Characterization and Expression in Root Tissue Challenged with Homologous Rhizobia, Heterologous Rhizobia, or Pseudomonas syringaeMartin A. CrockardAnthony J. BjoursonJames E. CooperTemporal reverse transcription-polymerase chain reaction (RT-PCR) expression analyses were performed on Trprx2, a new white clover peroxidase, with roots challenged with homologous rhizobia, heterologous rhizobia, and a pathogen, Pseudomonas syringae. Low levels of Trprx2 expression were evident in all rhizobial treatments but in P.syringae-treated clover background expression was dramatically reduced within 1 h and was undetectable in treatments inoculated for more than 3 h. Spraying 4 mM salicylic acid onto seedlings increased Trprx2 expression. These data suggest a defensive role for Trprx2 in white clover and indicate active defense suppression by the pathogen.https://apsjournals.apsnet.org/doi/10.1094/MPMI.1999.12.9.825
spellingShingle Martin A. Crockard
Anthony J. Bjourson
James E. Cooper
A New Peroxidase cDNA from White Clover: Its Characterization and Expression in Root Tissue Challenged with Homologous Rhizobia, Heterologous Rhizobia, or Pseudomonas syringae
Molecular Plant-Microbe Interactions
title A New Peroxidase cDNA from White Clover: Its Characterization and Expression in Root Tissue Challenged with Homologous Rhizobia, Heterologous Rhizobia, or Pseudomonas syringae
title_full A New Peroxidase cDNA from White Clover: Its Characterization and Expression in Root Tissue Challenged with Homologous Rhizobia, Heterologous Rhizobia, or Pseudomonas syringae
title_fullStr A New Peroxidase cDNA from White Clover: Its Characterization and Expression in Root Tissue Challenged with Homologous Rhizobia, Heterologous Rhizobia, or Pseudomonas syringae
title_full_unstemmed A New Peroxidase cDNA from White Clover: Its Characterization and Expression in Root Tissue Challenged with Homologous Rhizobia, Heterologous Rhizobia, or Pseudomonas syringae
title_short A New Peroxidase cDNA from White Clover: Its Characterization and Expression in Root Tissue Challenged with Homologous Rhizobia, Heterologous Rhizobia, or Pseudomonas syringae
title_sort new peroxidase cdna from white clover its characterization and expression in root tissue challenged with homologous rhizobia heterologous rhizobia or pseudomonas syringae
url https://apsjournals.apsnet.org/doi/10.1094/MPMI.1999.12.9.825
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