LOV - domain photoreceptor, encoded in a genomic island, attenuates the virulence of Pseudomonas syringae in light - exposed Arabidopsis leaves
In Arabidopsis thaliana, light signals modulate the defences against bacteria. Here we show that light perceived by the LOV domain-regulated two-component system [Pst-Lov] of Pseudomonas syringae pv. tomato DC3000 [Pst DC3000] modulates virulence against A. thaliana. Bioinformatic analysis and the existence of an episomal circular intermediate indicate that the locus encoding Pst-Lov is present in an active genomic island acquired by horizontal transfer. Strains mutated at Pst-Lov showed enhanced growth on minimal medium and in leaves of A. thaliana exposed to light, but not in leaves incubated in darkness or buried in the soil. Pst-Lov repressed the expression of principal and alternative sigma factor genes and their downstream targets linked to bacterial growth, virulence and quorum sensing, in a strictly light-dependent manner. We propose that the function of Pst-Lov is to distinguish between soil [dark] and leaf [light] environments, attenuating the damage caused to host tissues while releasing growth out of the host. Therefore, in addition to its direct actions via photosynthesis and plant sensory receptors, light may affect plants indirectly via the sensory receptors of bacterial pathogens.
Main Authors: | , , , , , , , , |
---|---|
Format: | Texto biblioteca |
Language: | eng |
Subjects: | ARABIDOPSIS THALIANA, LIGHT, LOV DOMAIN, PLANT-PATHOGEN INTERACTION, PSEUDOMONAS SYRINGAE PV. TOMATO DC3000, TWO-COMPONENT SYSTEM, PSEUDOMONAS SYRINGAE, BACTERIA, BIOINFORMATICS, FRUITS, GENE EXPRESSION, GHT, PATHOGENS, PLANTS [BOTANY], ARABIDOPSIS, BACTERIA [MICROORGANISMS], LYCOPERSICON ESCULENTUM, |
Online Access: | http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46909 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
KOHA-OAI-AGRO:46909 |
---|---|
record_format |
koha |
spelling |
KOHA-OAI-AGRO:469092022-11-02T13:11:21Zhttp://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46909AAGLOV - domain photoreceptor, encoded in a genomic island, attenuates the virulence of Pseudomonas syringae in light - exposed Arabidopsis leavesMoriconi, VictoriaSellaro, RominaAyub, Nicolás Daniel Soto, Gabriela Cynthia Rugnone, Matías LeandroShah, RashmPathak, Gopal P.Gärtner, WolfgangCasal, Jorge Josétextengapplication/pdfIn Arabidopsis thaliana, light signals modulate the defences against bacteria. Here we show that light perceived by the LOV domain-regulated two-component system [Pst-Lov] of Pseudomonas syringae pv. tomato DC3000 [Pst DC3000] modulates virulence against A. thaliana. Bioinformatic analysis and the existence of an episomal circular intermediate indicate that the locus encoding Pst-Lov is present in an active genomic island acquired by horizontal transfer. Strains mutated at Pst-Lov showed enhanced growth on minimal medium and in leaves of A. thaliana exposed to light, but not in leaves incubated in darkness or buried in the soil. Pst-Lov repressed the expression of principal and alternative sigma factor genes and their downstream targets linked to bacterial growth, virulence and quorum sensing, in a strictly light-dependent manner. We propose that the function of Pst-Lov is to distinguish between soil [dark] and leaf [light] environments, attenuating the damage caused to host tissues while releasing growth out of the host. Therefore, in addition to its direct actions via photosynthesis and plant sensory receptors, light may affect plants indirectly via the sensory receptors of bacterial pathogens.In Arabidopsis thaliana, light signals modulate the defences against bacteria. Here we show that light perceived by the LOV domain-regulated two-component system [Pst-Lov] of Pseudomonas syringae pv. tomato DC3000 [Pst DC3000] modulates virulence against A. thaliana. Bioinformatic analysis and the existence of an episomal circular intermediate indicate that the locus encoding Pst-Lov is present in an active genomic island acquired by horizontal transfer. Strains mutated at Pst-Lov showed enhanced growth on minimal medium and in leaves of A. thaliana exposed to light, but not in leaves incubated in darkness or buried in the soil. Pst-Lov repressed the expression of principal and alternative sigma factor genes and their downstream targets linked to bacterial growth, virulence and quorum sensing, in a strictly light-dependent manner. We propose that the function of Pst-Lov is to distinguish between soil [dark] and leaf [light] environments, attenuating the damage caused to host tissues while releasing growth out of the host. Therefore, in addition to its direct actions via photosynthesis and plant sensory receptors, light may affect plants indirectly via the sensory receptors of bacterial pathogens.ARABIDOPSIS THALIANALIGHTLOV DOMAINPLANT-PATHOGEN INTERACTIONPSEUDOMONAS SYRINGAE PV. TOMATO DC3000TWO-COMPONENT SYSTEMPSEUDOMONAS SYRINGAEBACTERIABIOINFORMATICSFRUITSGENE EXPRESSIONGHTPATHOGENSPLANTS [BOTANY]ARABIDOPSISBACTERIA [MICROORGANISMS]LYCOPERSICON ESCULENTUMThe Plant Journal |
institution |
UBA FA |
collection |
Koha |
country |
Argentina |
countrycode |
AR |
component |
Bibliográfico |
access |
En linea En linea |
databasecode |
cat-ceiba |
tag |
biblioteca |
region |
America del Sur |
libraryname |
Biblioteca Central FAUBA |
language |
eng |
topic |
ARABIDOPSIS THALIANA LIGHT LOV DOMAIN PLANT-PATHOGEN INTERACTION PSEUDOMONAS SYRINGAE PV. TOMATO DC3000 TWO-COMPONENT SYSTEM PSEUDOMONAS SYRINGAE BACTERIA BIOINFORMATICS FRUITS GENE EXPRESSION GHT PATHOGENS PLANTS [BOTANY] ARABIDOPSIS BACTERIA [MICROORGANISMS] LYCOPERSICON ESCULENTUM ARABIDOPSIS THALIANA LIGHT LOV DOMAIN PLANT-PATHOGEN INTERACTION PSEUDOMONAS SYRINGAE PV. TOMATO DC3000 TWO-COMPONENT SYSTEM PSEUDOMONAS SYRINGAE BACTERIA BIOINFORMATICS FRUITS GENE EXPRESSION GHT PATHOGENS PLANTS [BOTANY] ARABIDOPSIS BACTERIA [MICROORGANISMS] LYCOPERSICON ESCULENTUM |
spellingShingle |
ARABIDOPSIS THALIANA LIGHT LOV DOMAIN PLANT-PATHOGEN INTERACTION PSEUDOMONAS SYRINGAE PV. TOMATO DC3000 TWO-COMPONENT SYSTEM PSEUDOMONAS SYRINGAE BACTERIA BIOINFORMATICS FRUITS GENE EXPRESSION GHT PATHOGENS PLANTS [BOTANY] ARABIDOPSIS BACTERIA [MICROORGANISMS] LYCOPERSICON ESCULENTUM ARABIDOPSIS THALIANA LIGHT LOV DOMAIN PLANT-PATHOGEN INTERACTION PSEUDOMONAS SYRINGAE PV. TOMATO DC3000 TWO-COMPONENT SYSTEM PSEUDOMONAS SYRINGAE BACTERIA BIOINFORMATICS FRUITS GENE EXPRESSION GHT PATHOGENS PLANTS [BOTANY] ARABIDOPSIS BACTERIA [MICROORGANISMS] LYCOPERSICON ESCULENTUM Moriconi, Victoria Sellaro, Romina Ayub, Nicolás Daniel Soto, Gabriela Cynthia Rugnone, Matías Leandro Shah, Rashm Pathak, Gopal P. Gärtner, Wolfgang Casal, Jorge José LOV - domain photoreceptor, encoded in a genomic island, attenuates the virulence of Pseudomonas syringae in light - exposed Arabidopsis leaves |
description |
In Arabidopsis thaliana, light signals modulate the defences against bacteria. Here we show that light perceived by the LOV domain-regulated two-component system [Pst-Lov] of Pseudomonas syringae pv. tomato DC3000 [Pst DC3000] modulates virulence against A. thaliana. Bioinformatic analysis and the existence of an episomal circular intermediate indicate that the locus encoding Pst-Lov is present in an active genomic island acquired by horizontal transfer. Strains mutated at Pst-Lov showed enhanced growth on minimal medium and in leaves of A. thaliana exposed to light, but not in leaves incubated in darkness or buried in the soil. Pst-Lov repressed the expression of principal and alternative sigma factor genes and their downstream targets linked to bacterial growth, virulence and quorum sensing, in a strictly light-dependent manner. We propose that the function of Pst-Lov is to distinguish between soil [dark] and leaf [light] environments, attenuating the damage caused to host tissues while releasing growth out of the host. Therefore, in addition to its direct actions via photosynthesis and plant sensory receptors, light may affect plants indirectly via the sensory receptors of bacterial pathogens. |
format |
Texto |
topic_facet |
ARABIDOPSIS THALIANA LIGHT LOV DOMAIN PLANT-PATHOGEN INTERACTION PSEUDOMONAS SYRINGAE PV. TOMATO DC3000 TWO-COMPONENT SYSTEM PSEUDOMONAS SYRINGAE BACTERIA BIOINFORMATICS FRUITS GENE EXPRESSION GHT PATHOGENS PLANTS [BOTANY] ARABIDOPSIS BACTERIA [MICROORGANISMS] LYCOPERSICON ESCULENTUM |
author |
Moriconi, Victoria Sellaro, Romina Ayub, Nicolás Daniel Soto, Gabriela Cynthia Rugnone, Matías Leandro Shah, Rashm Pathak, Gopal P. Gärtner, Wolfgang Casal, Jorge José |
author_facet |
Moriconi, Victoria Sellaro, Romina Ayub, Nicolás Daniel Soto, Gabriela Cynthia Rugnone, Matías Leandro Shah, Rashm Pathak, Gopal P. Gärtner, Wolfgang Casal, Jorge José |
author_sort |
Moriconi, Victoria |
title |
LOV - domain photoreceptor, encoded in a genomic island, attenuates the virulence of Pseudomonas syringae in light - exposed Arabidopsis leaves |
title_short |
LOV - domain photoreceptor, encoded in a genomic island, attenuates the virulence of Pseudomonas syringae in light - exposed Arabidopsis leaves |
title_full |
LOV - domain photoreceptor, encoded in a genomic island, attenuates the virulence of Pseudomonas syringae in light - exposed Arabidopsis leaves |
title_fullStr |
LOV - domain photoreceptor, encoded in a genomic island, attenuates the virulence of Pseudomonas syringae in light - exposed Arabidopsis leaves |
title_full_unstemmed |
LOV - domain photoreceptor, encoded in a genomic island, attenuates the virulence of Pseudomonas syringae in light - exposed Arabidopsis leaves |
title_sort |
lov - domain photoreceptor, encoded in a genomic island, attenuates the virulence of pseudomonas syringae in light - exposed arabidopsis leaves |
url |
http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46909 |
work_keys_str_mv |
AT moriconivictoria lovdomainphotoreceptorencodedinagenomicislandattenuatesthevirulenceofpseudomonassyringaeinlightexposedarabidopsisleaves AT sellaroromina lovdomainphotoreceptorencodedinagenomicislandattenuatesthevirulenceofpseudomonassyringaeinlightexposedarabidopsisleaves AT ayubnicolasdaniel lovdomainphotoreceptorencodedinagenomicislandattenuatesthevirulenceofpseudomonassyringaeinlightexposedarabidopsisleaves AT sotogabrielacynthia lovdomainphotoreceptorencodedinagenomicislandattenuatesthevirulenceofpseudomonassyringaeinlightexposedarabidopsisleaves AT rugnonematiasleandro lovdomainphotoreceptorencodedinagenomicislandattenuatesthevirulenceofpseudomonassyringaeinlightexposedarabidopsisleaves AT shahrashm lovdomainphotoreceptorencodedinagenomicislandattenuatesthevirulenceofpseudomonassyringaeinlightexposedarabidopsisleaves AT pathakgopalp lovdomainphotoreceptorencodedinagenomicislandattenuatesthevirulenceofpseudomonassyringaeinlightexposedarabidopsisleaves AT gartnerwolfgang lovdomainphotoreceptorencodedinagenomicislandattenuatesthevirulenceofpseudomonassyringaeinlightexposedarabidopsisleaves AT casaljorgejose lovdomainphotoreceptorencodedinagenomicislandattenuatesthevirulenceofpseudomonassyringaeinlightexposedarabidopsisleaves |
_version_ |
1756046706393219072 |