Soybean root suberin and partial resistance to root rot caused by Phytophthora sojae.
Identifieur interne : 001C20 ( Main/Exploration ); précédent : 001C19; suivant : 001C21Soybean root suberin and partial resistance to root rot caused by Phytophthora sojae.
Auteurs : Kosala Ranathunge [Canada] ; Raymond H. Thomas ; Xingxiao Fang ; Carol A. Peterson ; Mark Gijzen ; Mark A. BernardsSource :
- Phytopathology [ 0031-949X ] ; 2008.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Lipides.
- microbiologie : Maladies des plantes, Racines de plante, Soja.
- métabolisme : Racines de plante, Soja.
- physiologie : Phytophthora.
- Immunité innée, Interactions hôte-pathogène, Microscopie de fluorescence.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Lipids.
- metabolism : Plant Roots, Soybeans.
- microbiology : Plant Diseases, Plant Roots, Soybeans.
- physiology : Phytophthora.
- Host-Pathogen Interactions, Immunity, Innate, Microscopy, Fluorescence.
Abstract
Phytophthora sojae is the causal agent of root and stem rot of soybean (Glycine max). Various cultivars with partial resistance to the pathogen have been developed to mitigate this damage. Herein, two contrasting genotypes, the cultivar Conrad (with strong partial resistance) and the line OX760-6 (with weak partial resistance), were compared regarding their amounts of preformed and induced suberin components, and to early events during the P. sojae infection process. To colonize the root, hyphae grew through the suberized middle lamellae between epidermal cells. This took 2 to 3 h longer in Conrad than in OX760-6, giving Conrad plants more time to establish their chemical defenses. Subsequent growth of hyphae through the endodermis was also delayed in Conrad. This cultivar had more preformed aliphatic suberin than the line OX760-6 and was induced to form more aliphatic suberin several days prior to that of OX760-6. However, the induced suberin was formed subsequent to the initial infection process. Eventually, the amount of induced suberin (measured 8 days postinoculation) was the same in both genotypes. Preformed root epidermal suberin provides a target for selection and development of new soybean cultivars with higher levels of expression of partial resistance to P. sojae.
DOI: 10.1094/PHYTO-98-11-1179
PubMed: 18943406
Affiliations:
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Thomas</name></author><author><name sortKey="Fang, Xingxiao" sort="Fang, Xingxiao" uniqKey="Fang X" first="Xingxiao" last="Fang">Xingxiao Fang</name></author><author><name sortKey="Peterson, Carol A" sort="Peterson, Carol A" uniqKey="Peterson C" first="Carol A" last="Peterson">Carol A. Peterson</name></author><author><name sortKey="Gijzen, Mark" sort="Gijzen, Mark" uniqKey="Gijzen M" first="Mark" last="Gijzen">Mark Gijzen</name></author><author><name sortKey="Bernards, Mark A" sort="Bernards, Mark A" uniqKey="Bernards M" first="Mark A" last="Bernards">Mark A. 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Thomas</name></author><author><name sortKey="Fang, Xingxiao" sort="Fang, Xingxiao" uniqKey="Fang X" first="Xingxiao" last="Fang">Xingxiao Fang</name></author><author><name sortKey="Peterson, Carol A" sort="Peterson, Carol A" uniqKey="Peterson C" first="Carol A" last="Peterson">Carol A. Peterson</name></author><author><name sortKey="Gijzen, Mark" sort="Gijzen, Mark" uniqKey="Gijzen M" first="Mark" last="Gijzen">Mark Gijzen</name></author><author><name sortKey="Bernards, Mark A" sort="Bernards, Mark A" uniqKey="Bernards M" first="Mark A" last="Bernards">Mark A. Bernards</name></author></analytic><series><title level="j">Phytopathology</title><idno type="ISSN">0031-949X</idno><imprint><date when="2008" type="published">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Host-Pathogen Interactions (MeSH)</term><term>Immunity, Innate (MeSH)</term><term>Lipids (analysis)</term><term>Microscopy, Fluorescence (MeSH)</term><term>Phytophthora (physiology)</term><term>Plant Diseases (microbiology)</term><term>Plant Roots (metabolism)</term><term>Plant Roots (microbiology)</term><term>Soybeans (metabolism)</term><term>Soybeans (microbiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Immunité innée (MeSH)</term><term>Interactions hôte-pathogène (MeSH)</term><term>Lipides (analyse)</term><term>Maladies des plantes (microbiologie)</term><term>Microscopie de fluorescence (MeSH)</term><term>Phytophthora (physiologie)</term><term>Racines de plante (microbiologie)</term><term>Racines de plante (métabolisme)</term><term>Soja (microbiologie)</term><term>Soja (métabolisme)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Lipids</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Lipides</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Roots</term><term>Soybeans</term></keywords><keywords scheme="MESH" qualifier="microbiologie" xml:lang="fr"><term>Maladies des plantes</term><term>Racines de plante</term><term>Soja</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Plant Diseases</term><term>Plant Roots</term><term>Soybeans</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Racines de plante</term><term>Soja</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Phytophthora</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Phytophthora</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Host-Pathogen Interactions</term><term>Immunity, Innate</term><term>Microscopy, Fluorescence</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Immunité innée</term><term>Interactions hôte-pathogène</term><term>Microscopie de fluorescence</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Phytophthora sojae is the causal agent of root and stem rot of soybean (Glycine max). Various cultivars with partial resistance to the pathogen have been developed to mitigate this damage. Herein, two contrasting genotypes, the cultivar Conrad (with strong partial resistance) and the line OX760-6 (with weak partial resistance), were compared regarding their amounts of preformed and induced suberin components, and to early events during the P. sojae infection process. To colonize the root, hyphae grew through the suberized middle lamellae between epidermal cells. This took 2 to 3 h longer in Conrad than in OX760-6, giving Conrad plants more time to establish their chemical defenses. Subsequent growth of hyphae through the endodermis was also delayed in Conrad. This cultivar had more preformed aliphatic suberin than the line OX760-6 and was induced to form more aliphatic suberin several days prior to that of OX760-6. However, the induced suberin was formed subsequent to the initial infection process. Eventually, the amount of induced suberin (measured 8 days postinoculation) was the same in both genotypes. Preformed root epidermal suberin provides a target for selection and development of new soybean cultivars with higher levels of expression of partial resistance to P. sojae.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">18943406</PMID><DateCompleted><Year>2009</Year><Month>03</Month><Day>23</Day></DateCompleted><DateRevised><Year>2008</Year><Month>10</Month><Day>23</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0031-949X</ISSN><JournalIssue CitedMedium="Print"><Volume>98</Volume><Issue>11</Issue><PubDate><Year>2008</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Phytopathology</Title><ISOAbbreviation>Phytopathology</ISOAbbreviation></Journal><ArticleTitle>Soybean root suberin and partial resistance to root rot caused by Phytophthora sojae.</ArticleTitle><Pagination><MedlinePgn>1179-89</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1094/PHYTO-98-11-1179</ELocationID><Abstract><AbstractText>Phytophthora sojae is the causal agent of root and stem rot of soybean (Glycine max). Various cultivars with partial resistance to the pathogen have been developed to mitigate this damage. Herein, two contrasting genotypes, the cultivar Conrad (with strong partial resistance) and the line OX760-6 (with weak partial resistance), were compared regarding their amounts of preformed and induced suberin components, and to early events during the P. sojae infection process. To colonize the root, hyphae grew through the suberized middle lamellae between epidermal cells. This took 2 to 3 h longer in Conrad than in OX760-6, giving Conrad plants more time to establish their chemical defenses. Subsequent growth of hyphae through the endodermis was also delayed in Conrad. This cultivar had more preformed aliphatic suberin than the line OX760-6 and was induced to form more aliphatic suberin several days prior to that of OX760-6. However, the induced suberin was formed subsequent to the initial infection process. Eventually, the amount of induced suberin (measured 8 days postinoculation) was the same in both genotypes. 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Bernards</name><name sortKey="Fang, Xingxiao" sort="Fang, Xingxiao" uniqKey="Fang X" first="Xingxiao" last="Fang">Xingxiao Fang</name><name sortKey="Gijzen, Mark" sort="Gijzen, Mark" uniqKey="Gijzen M" first="Mark" last="Gijzen">Mark Gijzen</name><name sortKey="Peterson, Carol A" sort="Peterson, Carol A" uniqKey="Peterson C" first="Carol A" last="Peterson">Carol A. Peterson</name><name sortKey="Thomas, Raymond H" sort="Thomas, Raymond H" uniqKey="Thomas R" first="Raymond H" last="Thomas">Raymond H. Thomas</name></noCountry><country name="Canada"><noRegion><name sortKey="Ranathunge, Kosala" sort="Ranathunge, Kosala" uniqKey="Ranathunge K" first="Kosala" last="Ranathunge">Kosala Ranathunge</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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