Root starch accumulation in response to arbuscular mycorrhizal colonization differs among Lotus japonicus starch mutants.
Identifieur interne : 002253 ( Main/Corpus ); précédent : 002252; suivant : 002254Root starch accumulation in response to arbuscular mycorrhizal colonization differs among Lotus japonicus starch mutants.
Auteurs : Caroline Gutjahr ; Mara Novero ; Tracey Welham ; Trevor Wang ; Paola BonfanteSource :
- Planta [ 1432-2048 ] ; 2011.
English descriptors
- KwdEn :
- Fungi (growth & development), Fungi (metabolism), Gene Expression Regulation, Plant (MeSH), Genes, Plant (MeSH), Genetic Variation (MeSH), Lotus (genetics), Lotus (metabolism), Lotus (microbiology), Mycorrhizae (growth & development), Mycorrhizae (metabolism), Plant Roots (anatomy & histology), Plant Roots (metabolism), Plant Roots (microbiology), Starch (genetics), Starch (metabolism), Symbiosis (physiology).
- MESH :
- chemical , genetics : Starch.
- anatomy & histology : Plant Roots.
- genetics : Lotus.
- growth & development : Fungi, Mycorrhizae.
- metabolism : Fungi, Lotus, Mycorrhizae, Plant Roots, Starch.
- microbiology : Lotus, Plant Roots.
- physiology : Symbiosis.
- Gene Expression Regulation, Plant, Genes, Plant, Genetic Variation.
Abstract
Arbuscular mycorrhizal (AM) fungi are obligate symbionts dependent for completion of their life cycle on plant carbohydrates, which they trade for mineral nutrients. Plant colonization by AM fungi is therefore expected to induce profound changes in plant carbon metabolism. We have previously observed that on one hand starch accumulation increases in responses to pre-symbiotic fungal signals and on the other hand, it decreases in mycorrhizal Lotus japonicus roots (Gutjahr et al. in New Phytol 183:53-61, 2009). To examine the importance of starch metabolism for AM development, we took advantage of a novel series of Lotus japonicus mutants impaired either in starch degradation or in synthesis. Normal AM colonization in all mutants indicated that defects in starch metabolism do not affect AM development and that carbohydrates can be supplied to the AM fungus without a requirement for starch synthesis. Furthermore, our experiments allowed us to characterize root starch dynamics in detail and point to continued turnover of starch in the degradation mutants in the presence of mycorrhiza.
DOI: 10.1007/s00425-011-1472-2
PubMed: 21750938
Links to Exploration step
pubmed:21750938Le document en format XML
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Plant colonization by AM fungi is therefore expected to induce profound changes in plant carbon metabolism. We have previously observed that on one hand starch accumulation increases in responses to pre-symbiotic fungal signals and on the other hand, it decreases in mycorrhizal Lotus japonicus roots (Gutjahr et al. in New Phytol 183:53-61, 2009). To examine the importance of starch metabolism for AM development, we took advantage of a novel series of Lotus japonicus mutants impaired either in starch degradation or in synthesis. Normal AM colonization in all mutants indicated that defects in starch metabolism do not affect AM development and that carbohydrates can be supplied to the AM fungus without a requirement for starch synthesis. Furthermore, our experiments allowed us to characterize root starch dynamics in detail and point to continued turnover of starch in the degradation mutants in the presence of mycorrhiza.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">21750938</PMID><DateCompleted><Year>2012</Year><Month>02</Month><Day>02</Day></DateCompleted><DateRevised><Year>2018</Year><Month>12</Month><Day>01</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-2048</ISSN><JournalIssue CitedMedium="Internet"><Volume>234</Volume><Issue>3</Issue><PubDate><Year>2011</Year><Month>Sep</Month></PubDate></JournalIssue><Title>Planta</Title><ISOAbbreviation>Planta</ISOAbbreviation></Journal><ArticleTitle>Root starch accumulation in response to arbuscular mycorrhizal colonization differs among Lotus japonicus starch mutants.</ArticleTitle><Pagination><MedlinePgn>639-46</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00425-011-1472-2</ELocationID><Abstract><AbstractText>Arbuscular mycorrhizal (AM) fungi are obligate symbionts dependent for completion of their life cycle on plant carbohydrates, which they trade for mineral nutrients. Plant colonization by AM fungi is therefore expected to induce profound changes in plant carbon metabolism. We have previously observed that on one hand starch accumulation increases in responses to pre-symbiotic fungal signals and on the other hand, it decreases in mycorrhizal Lotus japonicus roots (Gutjahr et al. in New Phytol 183:53-61, 2009). To examine the importance of starch metabolism for AM development, we took advantage of a novel series of Lotus japonicus mutants impaired either in starch degradation or in synthesis. Normal AM colonization in all mutants indicated that defects in starch metabolism do not affect AM development and that carbohydrates can be supplied to the AM fungus without a requirement for starch synthesis. Furthermore, our experiments allowed us to characterize root starch dynamics in detail and point to continued turnover of starch in the degradation mutants in the presence of mycorrhiza.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Gutjahr</LastName><ForeName>Caroline</ForeName><Initials>C</Initials><AffiliationInfo><Affiliation>Dipartimento di Biologia Vegetale, Università di Torino, Viale Mattioli 25, 10125 Turin, Italy.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Novero</LastName><ForeName>Mara</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Welham</LastName><ForeName>Tracey</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Trevor</ForeName><Initials>T</Initials></Author><Author ValidYN="Y"><LastName>Bonfante</LastName><ForeName>Paola</ForeName><Initials>P</Initials></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>BBS/E/J/00000150</GrantID><Agency>Biotechnology and Biological Sciences Research Council</Agency><Country>United Kingdom</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2011</Year><Month>07</Month><Day>13</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Planta</MedlineTA><NlmUniqueID>1250576</NlmUniqueID><ISSNLinking>0032-0935</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>9005-25-8</RegistryNumber><NameOfSubstance UI="D013213">Starch</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D005658" MajorTopicYN="N">Fungi</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="N">growth & 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MajorTopicYN="N">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="N">anatomy & histology</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013213" MajorTopicYN="N">Starch</DescriptorName><QualifierName UI="Q000235" MajorTopicYN="N">genetics</QualifierName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013559" MajorTopicYN="N">Symbiosis</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="N">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2011</Year><Month>03</Month><Day>30</Day></PubMedPubDate><PubMedPubDate 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