The Mutualist Laccaria bicolor Expresses a Core Gene Regulon During the Colonization of Diverse Host Plants and a Variable Regulon to Counteract Host-Specific Defenses.
Identifieur interne : 001683 ( Main/Corpus ); précédent : 001682; suivant : 001684The Mutualist Laccaria bicolor Expresses a Core Gene Regulon During the Colonization of Diverse Host Plants and a Variable Regulon to Counteract Host-Specific Defenses.
Auteurs : Jonathan M. Plett ; Emilie Tisserant ; Annick Brun ; Emmanuel Morin ; Igor V. Grigoriev ; Alan Kuo ; Francis Martin ; Annegret KohlerSource :
- Molecular plant-microbe interactions : MPMI [ 0894-0282 ] ; 2015.
English descriptors
- KwdEn :
- Fungal Proteins (genetics), Gene Expression Profiling (MeSH), Gene Expression Regulation, Fungal (MeSH), Gene Expression Regulation, Plant (MeSH), Laccaria (cytology), Laccaria (genetics), Laccaria (physiology), Mycorrhizae (cytology), Mycorrhizae (genetics), Mycorrhizae (physiology), Oligonucleotide Array Sequence Analysis (MeSH), Plant Proteins (genetics), Plant Roots (cytology), Plant Roots (genetics), Plant Roots (immunology), Plant Roots (microbiology), Populus (cytology), Populus (genetics), Populus (immunology), Populus (microbiology), Pseudotsuga (cytology), Pseudotsuga (genetics), Pseudotsuga (immunology), Pseudotsuga (microbiology), Regulon (genetics), Signal Transduction (MeSH), Species Specificity (MeSH), Symbiosis (MeSH), Transcriptome (MeSH).
- MESH :
- chemical , genetics : Fungal Proteins, Plant Proteins.
- cytology : Laccaria, Mycorrhizae, Plant Roots, Populus, Pseudotsuga.
- genetics : Laccaria, Mycorrhizae, Plant Roots, Populus, Pseudotsuga, Regulon.
- immunology : Plant Roots, Populus, Pseudotsuga.
- microbiology : Plant Roots, Populus, Pseudotsuga.
- physiology : Laccaria, Mycorrhizae.
- Gene Expression Profiling, Gene Expression Regulation, Fungal, Gene Expression Regulation, Plant, Oligonucleotide Array Sequence Analysis, Signal Transduction, Species Specificity, Symbiosis, Transcriptome.
Abstract
The coordinated transcriptomic responses of both mutualistic ectomycorrhizal (ECM) fungi and their hosts during the establishment of symbiosis are not well-understood. This study characterizes the transcriptomic alterations of the ECM fungus Laccaria bicolor during different colonization stages on two hosts (Populus trichocarpa and Pseudotsuga menziesii) and compares this to the transcriptomic variations of P. trichocarpa across the same time-points. A large number of L. bicolor genes (≥ 8,000) were significantly regulated at the transcriptional level in at least one stage of colonization. From our data, we identify 1,249 genes that we hypothesize is the 'core' gene regulon necessary for the mutualistic interaction between L. bicolor and its host plants. We further identify a group of 1,210 genes that are regulated in a host-specific manner. This variable regulon encodes a number of genes coding for proteases and xenobiotic efflux transporters that we hypothesize act to counter chemical-based defenses simultaneously activated at the transcriptomic level in P. trichocarpa. The transcriptional response of the host plant P. trichocarpa consisted of differential waves of gene regulation related to signaling perception and transduction, defense response, and the induction of nutrient transfer in P. trichocarpa tissues. This study, therefore, gives fresh insight into the shifting transcriptomic landscape in both the colonizing fungus and its host and the different strategies employed by both partners in orchestrating a mutualistic interaction.
DOI: 10.1094/MPMI-05-14-0129-FI
PubMed: 25338146
Links to Exploration step
pubmed:25338146Le document en format XML
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<author><name sortKey="Brun, Annick" sort="Brun, Annick" uniqKey="Brun A" first="Annick" last="Brun">Annick Brun</name>
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<author><name sortKey="Morin, Emmanuel" sort="Morin, Emmanuel" uniqKey="Morin E" first="Emmanuel" last="Morin">Emmanuel Morin</name>
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<author><name sortKey="Grigoriev, Igor V" sort="Grigoriev, Igor V" uniqKey="Grigoriev I" first="Igor V" last="Grigoriev">Igor V. Grigoriev</name>
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<term>Gene Expression Profiling (MeSH)</term>
<term>Gene Expression Regulation, Fungal (MeSH)</term>
<term>Gene Expression Regulation, Plant (MeSH)</term>
<term>Laccaria (cytology)</term>
<term>Laccaria (genetics)</term>
<term>Laccaria (physiology)</term>
<term>Mycorrhizae (cytology)</term>
<term>Mycorrhizae (genetics)</term>
<term>Mycorrhizae (physiology)</term>
<term>Oligonucleotide Array Sequence Analysis (MeSH)</term>
<term>Plant Proteins (genetics)</term>
<term>Plant Roots (cytology)</term>
<term>Plant Roots (genetics)</term>
<term>Plant Roots (immunology)</term>
<term>Plant Roots (microbiology)</term>
<term>Populus (cytology)</term>
<term>Populus (genetics)</term>
<term>Populus (immunology)</term>
<term>Populus (microbiology)</term>
<term>Pseudotsuga (cytology)</term>
<term>Pseudotsuga (genetics)</term>
<term>Pseudotsuga (immunology)</term>
<term>Pseudotsuga (microbiology)</term>
<term>Regulon (genetics)</term>
<term>Signal Transduction (MeSH)</term>
<term>Species Specificity (MeSH)</term>
<term>Symbiosis (MeSH)</term>
<term>Transcriptome (MeSH)</term>
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<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Fungal Proteins</term>
<term>Plant Proteins</term>
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<keywords scheme="MESH" qualifier="cytology" xml:lang="en"><term>Laccaria</term>
<term>Mycorrhizae</term>
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<term>Populus</term>
<term>Pseudotsuga</term>
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<keywords scheme="MESH" qualifier="genetics" xml:lang="en"><term>Laccaria</term>
<term>Mycorrhizae</term>
<term>Plant Roots</term>
<term>Populus</term>
<term>Pseudotsuga</term>
<term>Regulon</term>
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<keywords scheme="MESH" qualifier="immunology" xml:lang="en"><term>Plant Roots</term>
<term>Populus</term>
<term>Pseudotsuga</term>
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<keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Roots</term>
<term>Populus</term>
<term>Pseudotsuga</term>
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<term>Gene Expression Regulation, Plant</term>
<term>Oligonucleotide Array Sequence Analysis</term>
<term>Signal Transduction</term>
<term>Species Specificity</term>
<term>Symbiosis</term>
<term>Transcriptome</term>
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<front><div type="abstract" xml:lang="en">The coordinated transcriptomic responses of both mutualistic ectomycorrhizal (ECM) fungi and their hosts during the establishment of symbiosis are not well-understood. This study characterizes the transcriptomic alterations of the ECM fungus Laccaria bicolor during different colonization stages on two hosts (Populus trichocarpa and Pseudotsuga menziesii) and compares this to the transcriptomic variations of P. trichocarpa across the same time-points. A large number of L. bicolor genes (≥ 8,000) were significantly regulated at the transcriptional level in at least one stage of colonization. From our data, we identify 1,249 genes that we hypothesize is the 'core' gene regulon necessary for the mutualistic interaction between L. bicolor and its host plants. We further identify a group of 1,210 genes that are regulated in a host-specific manner. This variable regulon encodes a number of genes coding for proteases and xenobiotic efflux transporters that we hypothesize act to counter chemical-based defenses simultaneously activated at the transcriptomic level in P. trichocarpa. The transcriptional response of the host plant P. trichocarpa consisted of differential waves of gene regulation related to signaling perception and transduction, defense response, and the induction of nutrient transfer in P. trichocarpa tissues. This study, therefore, gives fresh insight into the shifting transcriptomic landscape in both the colonizing fungus and its host and the different strategies employed by both partners in orchestrating a mutualistic interaction.</div>
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<Abstract><AbstractText>The coordinated transcriptomic responses of both mutualistic ectomycorrhizal (ECM) fungi and their hosts during the establishment of symbiosis are not well-understood. This study characterizes the transcriptomic alterations of the ECM fungus Laccaria bicolor during different colonization stages on two hosts (Populus trichocarpa and Pseudotsuga menziesii) and compares this to the transcriptomic variations of P. trichocarpa across the same time-points. A large number of L. bicolor genes (≥ 8,000) were significantly regulated at the transcriptional level in at least one stage of colonization. From our data, we identify 1,249 genes that we hypothesize is the 'core' gene regulon necessary for the mutualistic interaction between L. bicolor and its host plants. We further identify a group of 1,210 genes that are regulated in a host-specific manner. This variable regulon encodes a number of genes coding for proteases and xenobiotic efflux transporters that we hypothesize act to counter chemical-based defenses simultaneously activated at the transcriptomic level in P. trichocarpa. The transcriptional response of the host plant P. trichocarpa consisted of differential waves of gene regulation related to signaling perception and transduction, defense response, and the induction of nutrient transfer in P. trichocarpa tissues. This study, therefore, gives fresh insight into the shifting transcriptomic landscape in both the colonizing fungus and its host and the different strategies employed by both partners in orchestrating a mutualistic interaction.</AbstractText>
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