Actin monoubiquitylation is induced in plants in response to pathogens and symbionts.
Identifieur interne : 000303 ( Main/Exploration ); précédent : 000302; suivant : 000304Actin monoubiquitylation is induced in plants in response to pathogens and symbionts.
Auteurs : E. Dantán-González [Mexique] ; Y. Rosenstein ; C. Quinto ; F. SánchezSource :
- Molecular plant-microbe interactions : MPMI [ 0894-0282 ] ; 2001.
Descripteurs français
- KwdFr :
- Actines (), Actines (métabolisme), Fabaceae (microbiologie), Fabaceae (métabolisme), Fixation de l'azote (MeSH), Maladies des plantes (microbiologie), Phaseolus (microbiologie), Phaseolus (métabolisme), Phytophthora (pathogénicité), Plantes (microbiologie), Plantes (métabolisme), Pseudomonas (pathogénicité), Racines de plante (croissance et développement), Racines de plante (métabolisme), Symbiose (MeSH), Ubiquitine (métabolisme).
- MESH :
- croissance et développement : Racines de plante.
- microbiologie : Fabaceae, Maladies des plantes, Phaseolus, Plantes.
- métabolisme : Actines, Fabaceae, Phaseolus, Plantes, Racines de plante, Ubiquitine.
- pathogénicité : Phytophthora, Pseudomonas.
- Actines, Fixation de l'azote, Symbiose.
English descriptors
- KwdEn :
- Actins (chemistry), Actins (metabolism), Fabaceae (metabolism), Fabaceae (microbiology), Nitrogen Fixation (MeSH), Phaseolus (metabolism), Phaseolus (microbiology), Phytophthora (pathogenicity), Plant Diseases (microbiology), Plant Roots (growth & development), Plant Roots (metabolism), Plants (metabolism), Plants (microbiology), Pseudomonas (pathogenicity), Symbiosis (MeSH), Ubiquitin (metabolism).
- MESH :
- chemical , chemistry : Actins.
- chemical , metabolism : Actins, Ubiquitin.
- growth & development : Plant Roots.
- metabolism : Fabaceae, Phaseolus, Plant Roots, Plants.
- microbiology : Fabaceae, Phaseolus, Plant Diseases, Plants.
- pathogenicity : Phytophthora, Pseudomonas.
- Nitrogen Fixation, Symbiosis.
Abstract
Most dramatic examples of actin reorganization have been described during host-microbe interactions. Plasticity of actin is, in part, due to posttranslational modifications such as phosphorylation or ubiquitylation. Here, we show for the first time that actins found in root nodules of Phaseolus vulgaris are modified transiently during nodule development by monoubiquitylation. This finding was extended to root nodules of other legumes and to other plants infected with mycorrhiza or plant pathogens such as members of the genera Pseudomonas and Phytophthora. However, neither viral infections nor diverse stressful conditions (heat shock, wounding, or osmotic stress) induced this response. Additionally, this phenomenon was mimicked by the addition of a yeast elicitor or H2O2 to Phaseolus vulgaris suspension culture cells. This modification seems to provide increased stability of the microfilaments to proteolytic degradation and seems to be found in fractions in which the actin cytoskeleton is associated with membranes. All together, these data suggest that actin monoubiquitylation may be considered an effector mechanism of a general plant response against microbes.
DOI: 10.1094/MPMI.2001.14.11.1267
PubMed: 11763124
Affiliations:
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Plasticity of actin is, in part, due to posttranslational modifications such as phosphorylation or ubiquitylation. Here, we show for the first time that actins found in root nodules of Phaseolus vulgaris are modified transiently during nodule development by monoubiquitylation. This finding was extended to root nodules of other legumes and to other plants infected with mycorrhiza or plant pathogens such as members of the genera Pseudomonas and Phytophthora. However, neither viral infections nor diverse stressful conditions (heat shock, wounding, or osmotic stress) induced this response. Additionally, this phenomenon was mimicked by the addition of a yeast elicitor or H2O2 to Phaseolus vulgaris suspension culture cells. This modification seems to provide increased stability of the microfilaments to proteolytic degradation and seems to be found in fractions in which the actin cytoskeleton is associated with membranes. All together, these data suggest that actin monoubiquitylation may be considered an effector mechanism of a general plant response against microbes.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">11763124</PMID><DateCompleted><Year>2002</Year><Month>06</Month><Day>03</Day></DateCompleted><DateRevised><Year>2006</Year><Month>11</Month><Day>15</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0894-0282</ISSN><JournalIssue CitedMedium="Print"><Volume>14</Volume><Issue>11</Issue><PubDate><Year>2001</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Molecular plant-microbe interactions : MPMI</Title><ISOAbbreviation>Mol Plant Microbe Interact</ISOAbbreviation></Journal><ArticleTitle>Actin monoubiquitylation is induced in plants in response to pathogens and symbionts.</ArticleTitle><Pagination><MedlinePgn>1267-73</MedlinePgn></Pagination><Abstract><AbstractText>Most dramatic examples of actin reorganization have been described during host-microbe interactions. Plasticity of actin is, in part, due to posttranslational modifications such as phosphorylation or ubiquitylation. Here, we show for the first time that actins found in root nodules of Phaseolus vulgaris are modified transiently during nodule development by monoubiquitylation. This finding was extended to root nodules of other legumes and to other plants infected with mycorrhiza or plant pathogens such as members of the genera Pseudomonas and Phytophthora. However, neither viral infections nor diverse stressful conditions (heat shock, wounding, or osmotic stress) induced this response. Additionally, this phenomenon was mimicked by the addition of a yeast elicitor or H2O2 to Phaseolus vulgaris suspension culture cells. This modification seems to provide increased stability of the microfilaments to proteolytic degradation and seems to be found in fractions in which the actin cytoskeleton is associated with membranes. 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Quinto</name><name sortKey="Rosenstein, Y" sort="Rosenstein, Y" uniqKey="Rosenstein Y" first="Y" last="Rosenstein">Y. Rosenstein</name><name sortKey="Sanchez, F" sort="Sanchez, F" uniqKey="Sanchez F" first="F" last="Sánchez">F. Sánchez</name></noCountry><country name="Mexique"><noRegion><name sortKey="Dantan Gonzalez, E" sort="Dantan Gonzalez, E" uniqKey="Dantan Gonzalez E" first="E" last="Dantán-González">E. Dantán-González</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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