Apoplastic plant subtilases support arbuscular mycorrhiza development in Lotus japonicus.
Identifieur interne : 002A45 ( Main/Corpus ); précédent : 002A44; suivant : 002A46Apoplastic plant subtilases support arbuscular mycorrhiza development in Lotus japonicus.
Auteurs : Naoya Takeda ; Shusei Sato ; Erika Asamizu ; Satoshi Tabata ; Martin ParniskeSource :
- The Plant journal : for cell and molecular biology [ 1365-313X ] ; 2009.
English descriptors
- KwdEn :
- Gene Expression Profiling (MeSH), Lotus (enzymology), Lotus (genetics), Lotus (microbiology), Multigene Family (MeSH), Mycorrhizae (growth & development), Plant Proteins (genetics), Plant Proteins (metabolism), Plants, Genetically Modified (enzymology), Plants, Genetically Modified (genetics), Plants, Genetically Modified (microbiology), Promoter Regions, Genetic (MeSH), RNA, Plant (genetics), Reverse Transcriptase Polymerase Chain Reaction (MeSH), Root Nodules, Plant (genetics), Root Nodules, Plant (metabolism), Subtilisins (genetics), Subtilisins (metabolism), Symbiosis (MeSH), Up-Regulation (MeSH).
- MESH :
- chemical , genetics : Plant Proteins, RNA, Plant, Subtilisins.
- enzymology : Lotus, Plants, Genetically Modified.
- genetics : Lotus, Plants, Genetically Modified, Root Nodules, Plant.
- growth & development : Mycorrhizae.
- chemical , metabolism : Plant Proteins, Root Nodules, Plant, Subtilisins.
- microbiology : Lotus, Plants, Genetically Modified.
- Gene Expression Profiling, Multigene Family, Promoter Regions, Genetic, Reverse Transcriptase Polymerase Chain Reaction, Symbiosis, Up-Regulation.
Abstract
In the arbuscular mycorrhiza (AM) symbiosis, plant roots accommodate Glomeromycota fungi within an intracellular compartment, the arbuscule. At this symbiotic interface, fungal hyphae are surrounded by a plant membrane, which creates an apoplastic compartment, the periarbuscular space (PAS) between fungal and plant cell. Despite the importance of the PAS for symbiotic signal and metabolite exchange, only few of its components have been identified. Here we show that two apoplastic plant proteases of the subtilase family are required for AM development. SbtM1 is the founder member of a family of arbuscular mycorrhiza-induced subtilase genes that occur in at least two clusters in the genome of the legume Lotus japonicus. A detailed expression analysis by RT-PCR revealed that SbtM1, SbtM3, SbtM4 and the more distantly related SbtS are all rapidly induced during development of arbuscular mycorrhiza, but only SbtS and SbtM4 are also up-regulated during root nodule symbiosis. Promoter-reporter fusions indicated specific activation in cells that are adjacent to intra-radical fungal hyphae or in cells that harbour them. Venus fluorescent protein was observed in the apoplast and the PAS when expressed from a fusion construct with the SbtM1 signal peptide or the full-length subtilase. Suppression of SbtM1 or SbtM3 by RNAi caused a decrease in intra-radical hyphae and arbuscule colonization, but had no effect on nodule formation. Our data indicate a role for these subtilases during the fungal infection process in particular arbuscule development.
DOI: 10.1111/j.1365-313X.2009.03824.x
PubMed: 19220794
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At this symbiotic interface, fungal hyphae are surrounded by a plant membrane, which creates an apoplastic compartment, the periarbuscular space (PAS) between fungal and plant cell. Despite the importance of the PAS for symbiotic signal and metabolite exchange, only few of its components have been identified. Here we show that two apoplastic plant proteases of the subtilase family are required for AM development. SbtM1 is the founder member of a family of arbuscular mycorrhiza-induced subtilase genes that occur in at least two clusters in the genome of the legume Lotus japonicus. A detailed expression analysis by RT-PCR revealed that SbtM1, SbtM3, SbtM4 and the more distantly related SbtS are all rapidly induced during development of arbuscular mycorrhiza, but only SbtS and SbtM4 are also up-regulated during root nodule symbiosis. Promoter-reporter fusions indicated specific activation in cells that are adjacent to intra-radical fungal hyphae or in cells that harbour them. Venus fluorescent protein was observed in the apoplast and the PAS when expressed from a fusion construct with the SbtM1 signal peptide or the full-length subtilase. Suppression of SbtM1 or SbtM3 by RNAi caused a decrease in intra-radical hyphae and arbuscule colonization, but had no effect on nodule formation. Our data indicate a role for these subtilases during the fungal infection process in particular arbuscule development.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19220794</PMID><DateCompleted><Year>2009</Year><Month>09</Month><Day>02</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>01</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1365-313X</ISSN><JournalIssue CitedMedium="Internet"><Volume>58</Volume><Issue>5</Issue><PubDate><Year>2009</Year><Month>Jun</Month></PubDate></JournalIssue><Title>The Plant journal : for cell and molecular biology</Title><ISOAbbreviation>Plant J</ISOAbbreviation></Journal><ArticleTitle>Apoplastic plant subtilases support arbuscular mycorrhiza development in Lotus japonicus.</ArticleTitle><Pagination><MedlinePgn>766-77</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1111/j.1365-313X.2009.03824.x</ELocationID><Abstract><AbstractText>In the arbuscular mycorrhiza (AM) symbiosis, plant roots accommodate Glomeromycota fungi within an intracellular compartment, the arbuscule. At this symbiotic interface, fungal hyphae are surrounded by a plant membrane, which creates an apoplastic compartment, the periarbuscular space (PAS) between fungal and plant cell. Despite the importance of the PAS for symbiotic signal and metabolite exchange, only few of its components have been identified. Here we show that two apoplastic plant proteases of the subtilase family are required for AM development. SbtM1 is the founder member of a family of arbuscular mycorrhiza-induced subtilase genes that occur in at least two clusters in the genome of the legume Lotus japonicus. A detailed expression analysis by RT-PCR revealed that SbtM1, SbtM3, SbtM4 and the more distantly related SbtS are all rapidly induced during development of arbuscular mycorrhiza, but only SbtS and SbtM4 are also up-regulated during root nodule symbiosis. Promoter-reporter fusions indicated specific activation in cells that are adjacent to intra-radical fungal hyphae or in cells that harbour them. Venus fluorescent protein was observed in the apoplast and the PAS when expressed from a fusion construct with the SbtM1 signal peptide or the full-length subtilase. Suppression of SbtM1 or SbtM3 by RNAi caused a decrease in intra-radical hyphae and arbuscule colonization, but had no effect on nodule formation. Our data indicate a role for these subtilases during the fungal infection process in particular arbuscule development.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Takeda</LastName><ForeName>Naoya</ForeName><Initials>N</Initials><AffiliationInfo><Affiliation>Faculty of Biology, Genetics, University of Munich, Grosshaderner Strasse 2, Martinsried, Germany.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Sato</LastName><ForeName>Shusei</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Asamizu</LastName><ForeName>Erika</ForeName><Initials>E</Initials></Author><Author ValidYN="Y"><LastName>Tabata</LastName><ForeName>Satoshi</ForeName><Initials>S</Initials></Author><Author ValidYN="Y"><LastName>Parniske</LastName><ForeName>Martin</ForeName><Initials>M</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2009</Year><Month>02</Month><Day>10</Day></ArticleDate></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>Plant J</MedlineTA><NlmUniqueID>9207397</NlmUniqueID><ISSNLinking>0960-7412</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D010940">Plant Proteins</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D018749">RNA, Plant</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 3.4.21.-</RegistryNumber><NameOfSubstance UI="D013381">Subtilisins</NameOfSubstance></Chemical><Chemical><RegistryNumber>EC 3.4.21.-</RegistryNumber><NameOfSubstance UI="C119297">subtilase, plant</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D020869" MajorTopicYN="N">Gene Expression Profiling</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D000070116" MajorTopicYN="N">Lotus</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="Y">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005810" MajorTopicYN="N">Multigene Family</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010940" MajorTopicYN="N">Plant Proteins</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D030821" MajorTopicYN="N">Plants, Genetically Modified</DescriptorName><QualifierName UI="Q000201" MajorTopicYN="N">enzymology</QualifierName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011401" MajorTopicYN="N">Promoter Regions, Genetic</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018749" MajorTopicYN="N">RNA, Plant</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D020133" MajorTopicYN="N">Reverse Transcriptase Polymerase Chain Reaction</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D053204" MajorTopicYN="N">Root Nodules, Plant</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013381" 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