<em>HR4</em> Gene Is Induced in the <em>Arabidopsis</em>-<em>Trichoderma </em><em>a</em><em>troviride</em> Beneficial Interaction
Plants are constantly exposed to microbes, for this reason they have evolved sophisticated strategies to perceive and identify biotic interactions. Thus, plants have large collections of so-called resistance (R) proteins that recognize specific microbe factors as signals of invasion. One of these pr...
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doaj-c798ee24949945a48fd54a18865131f32020-11-24T23:58:47ZengMDPI AGInternational Journal of Molecular Sciences1422-00672012-07-011379110912810.3390/ijms13079110<em>HR4</em> Gene Is Induced in the <em>Arabidopsis</em>-<em>Trichoderma </em><em>a</em><em>troviride</em> Beneficial InteractionJorge Sáenz-MataJuan Francisco Jiménez-BremontPlants are constantly exposed to microbes, for this reason they have evolved sophisticated strategies to perceive and identify biotic interactions. Thus, plants have large collections of so-called resistance (R) proteins that recognize specific microbe factors as signals of invasion. One of these proteins is codified by the <em>Arabidopsis thaliana</em> <em>HR4</em> gene in the Col-0 ecotype that is homologous to <em>RPW8</em> genes present in the Ms-0 ecotype. In this study, we investigated the expression patterns of the <em>HR4</em> gene in Arabidopsis seedlings interacting with the beneficial fungus <em>Trichoderma atroviride</em>. We observed the induction of the <em>HR4</em> gene mainly at 96 hpi when the fungus interaction was established. Furthermore, we found that the <em>HR4</em> gene was differentially regulated in interactions with the beneficial bacterium <em>Pseudomonas fluorescens</em> and the pathogenic bacterium <em>P. syringae</em>. When hormone treatments were applied to <em>A. thaliana</em> (Col-0), each hormone treatment induced changes in <em>HR4</em> gene expression. On the other hand, the expression of the <em>RPW8.1</em> and <em>RPW8.2</em> genes of Arabidopsis ecotype Ms-0 in interaction with <em>T. atroviride</em> was assessed. Interestingly, these genes are interaction-responsive; in particular, the <em>RPW8.1</em> gene shows a very high level of expression in the later stages of interaction. These results indicate that <em>HR4</em> and <em>RPW8</em> genes could play a role in the establishment of Arabidopsis interactions with beneficial microbes.<strong></strong>http://www.mdpi.com/1422-0067/13/7/9110<em></em><em>Arabidopsis thaliana</em>Col-0Ms-0<em>HR4</em><em>R</em> genes<em>RPW8</em><em>Trichoderma atroviride</em> |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jorge Sáenz-Mata Juan Francisco Jiménez-Bremont |
spellingShingle |
Jorge Sáenz-Mata Juan Francisco Jiménez-Bremont <em>HR4</em> Gene Is Induced in the <em>Arabidopsis</em>-<em>Trichoderma </em><em>a</em><em>troviride</em> Beneficial Interaction International Journal of Molecular Sciences <em></em><em>Arabidopsis thaliana</em> Col-0 Ms-0 <em>HR4</em> <em>R</em> genes <em>RPW8</em> <em>Trichoderma atroviride</em> |
author_facet |
Jorge Sáenz-Mata Juan Francisco Jiménez-Bremont |
author_sort |
Jorge Sáenz-Mata |
title |
<em>HR4</em> Gene Is Induced in the <em>Arabidopsis</em>-<em>Trichoderma </em><em>a</em><em>troviride</em> Beneficial Interaction |
title_short |
<em>HR4</em> Gene Is Induced in the <em>Arabidopsis</em>-<em>Trichoderma </em><em>a</em><em>troviride</em> Beneficial Interaction |
title_full |
<em>HR4</em> Gene Is Induced in the <em>Arabidopsis</em>-<em>Trichoderma </em><em>a</em><em>troviride</em> Beneficial Interaction |
title_fullStr |
<em>HR4</em> Gene Is Induced in the <em>Arabidopsis</em>-<em>Trichoderma </em><em>a</em><em>troviride</em> Beneficial Interaction |
title_full_unstemmed |
<em>HR4</em> Gene Is Induced in the <em>Arabidopsis</em>-<em>Trichoderma </em><em>a</em><em>troviride</em> Beneficial Interaction |
title_sort |
<em>hr4</em> gene is induced in the <em>arabidopsis</em>-<em>trichoderma </em><em>a</em><em>troviride</em> beneficial interaction |
publisher |
MDPI AG |
series |
International Journal of Molecular Sciences |
issn |
1422-0067 |
publishDate |
2012-07-01 |
description |
Plants are constantly exposed to microbes, for this reason they have evolved sophisticated strategies to perceive and identify biotic interactions. Thus, plants have large collections of so-called resistance (R) proteins that recognize specific microbe factors as signals of invasion. One of these proteins is codified by the <em>Arabidopsis thaliana</em> <em>HR4</em> gene in the Col-0 ecotype that is homologous to <em>RPW8</em> genes present in the Ms-0 ecotype. In this study, we investigated the expression patterns of the <em>HR4</em> gene in Arabidopsis seedlings interacting with the beneficial fungus <em>Trichoderma atroviride</em>. We observed the induction of the <em>HR4</em> gene mainly at 96 hpi when the fungus interaction was established. Furthermore, we found that the <em>HR4</em> gene was differentially regulated in interactions with the beneficial bacterium <em>Pseudomonas fluorescens</em> and the pathogenic bacterium <em>P. syringae</em>. When hormone treatments were applied to <em>A. thaliana</em> (Col-0), each hormone treatment induced changes in <em>HR4</em> gene expression. On the other hand, the expression of the <em>RPW8.1</em> and <em>RPW8.2</em> genes of Arabidopsis ecotype Ms-0 in interaction with <em>T. atroviride</em> was assessed. Interestingly, these genes are interaction-responsive; in particular, the <em>RPW8.1</em> gene shows a very high level of expression in the later stages of interaction. These results indicate that <em>HR4</em> and <em>RPW8</em> genes could play a role in the establishment of Arabidopsis interactions with beneficial microbes.<strong></strong> |
topic |
<em></em><em>Arabidopsis thaliana</em> Col-0 Ms-0 <em>HR4</em> <em>R</em> genes <em>RPW8</em> <em>Trichoderma atroviride</em> |
url |
http://www.mdpi.com/1422-0067/13/7/9110 |
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