Striga seed-germination activity of root exudates and compounds present in stems of Striga host and nonhost (trap crop) plants is reduced due to root colonization by arbuscular mycorrhizal fungi.
Identifieur interne : 002A39 ( Main/Corpus ); précédent : 002A38; suivant : 002A40Striga seed-germination activity of root exudates and compounds present in stems of Striga host and nonhost (trap crop) plants is reduced due to root colonization by arbuscular mycorrhizal fungi.
Auteurs : V. Lendzemo ; T W Kuyper ; H. VierheiligSource :
- Mycorrhiza [ 1432-1890 ] ; 2009.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Plant Exudates.
- growth & development : Mycorrhizae.
- metabolism : Magnoliopsida, Plant Roots, Plant Stems.
- microbiology : Magnoliopsida, Plant Roots, Plant Stems.
- physiology : Seeds, Striga.
- Germination.
Abstract
Root colonization by arbuscular mycorrhizal (AM) fungi reduces stimulation of seed germination of the plant parasite Striga (Orobanchaceae). This reduction can affect not only host plants for Striga, resulting in a lower parasite incidence, but also false hosts or trap crops, which induce suicidal Striga seed germination, thereby diminishing their effectiveness. In order to better understand these AM-induced effects, we tested the influence of root colonization by different AM fungi on the seed-germination activity of root exudates of the Striga hermonthica nonhost plants cowpea and cotton on S. hermonthica. We also tested the effect of AM fungi on the seed-germination activity of the Striga gesnerioides host plant cowpea on S. gesnerioides. Moreover, we studied whether mycorrhization affects the transport of seed-germination activity to above-ground plant parts. Mycorrhization not only resulted in a lower seed germination of S. gesnerioides in the presence of root exudates of the S. gesnerioides host cowpea but also seed germination of S. hermonthica was also lower in the presence of root exudates of the S. hermonthica nonhosts cowpea and cotton. Downregulation of the Striga seed-germination activity occurs not only in root exudates upon root colonization by different AM fungi but also in the compounds produced by stems. The lowered seed-germination activity does not appear to depend on the presence of seed germination inhibitors in the root exudates of mycorrhizal plants. The implication for Striga control in the field is discussed.
DOI: 10.1007/s00572-009-0235-4
PubMed: 19238457
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pubmed:19238457Le document en format XML
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Vierheilig</name><affiliation><nlm:affiliation>Institut für Pflanzenschutz, Universität für Bodenkultur Wien, 1190, Wien, Austria. horst.vierheilig@eez.csic.es.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Departamento de Microbiología, Estación Experimental de Zaidín, CSIC, 18008, Granada, Spain. horst.vierheilig@eez.csic.es.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2009">2009</date><idno type="RBID">pubmed:19238457</idno><idno type="pmid">19238457</idno><idno type="doi">10.1007/s00572-009-0235-4</idno><idno type="wicri:Area/Main/Corpus">002A39</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">002A39</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Striga seed-germination activity of root exudates and compounds present in stems of Striga host and nonhost (trap crop) plants is reduced due to root colonization by arbuscular mycorrhizal fungi.</title><author><name sortKey="Lendzemo, V" sort="Lendzemo, V" uniqKey="Lendzemo V" first="V" last="Lendzemo">V. Lendzemo</name><affiliation><nlm:affiliation>Institute of Agricultural Research for Development, Maroua, P. O. Box 33, Maroua, Cameroon.</nlm:affiliation></affiliation></author><author><name sortKey="Kuyper, T W" sort="Kuyper, T W" uniqKey="Kuyper T" first="T W" last="Kuyper">T W Kuyper</name><affiliation><nlm:affiliation>Department of Soil Quality, Wageningen University, P. O. Box 47, 6700 AA, Wageningen, The Netherlands.</nlm:affiliation></affiliation></author><author><name sortKey="Vierheilig, H" sort="Vierheilig, H" uniqKey="Vierheilig H" first="H" last="Vierheilig">H. Vierheilig</name><affiliation><nlm:affiliation>Institut für Pflanzenschutz, Universität für Bodenkultur Wien, 1190, Wien, Austria. horst.vierheilig@eez.csic.es.</nlm:affiliation></affiliation><affiliation><nlm:affiliation>Departamento de Microbiología, Estación Experimental de Zaidín, CSIC, 18008, Granada, Spain. horst.vierheilig@eez.csic.es.</nlm:affiliation></affiliation></author></analytic><series><title level="j">Mycorrhiza</title><idno type="eISSN">1432-1890</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Germination (MeSH)</term><term>Magnoliopsida (metabolism)</term><term>Magnoliopsida (microbiology)</term><term>Mycorrhizae (growth & development)</term><term>Plant Exudates (metabolism)</term><term>Plant Roots (metabolism)</term><term>Plant Roots (microbiology)</term><term>Plant Stems (metabolism)</term><term>Plant Stems (microbiology)</term><term>Seeds (physiology)</term><term>Striga (physiology)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Plant Exudates</term></keywords><keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Mycorrhizae</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Magnoliopsida</term><term>Plant Roots</term><term>Plant Stems</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Magnoliopsida</term><term>Plant Roots</term><term>Plant Stems</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Seeds</term><term>Striga</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Germination</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Root colonization by arbuscular mycorrhizal (AM) fungi reduces stimulation of seed germination of the plant parasite Striga (Orobanchaceae). This reduction can affect not only host plants for Striga, resulting in a lower parasite incidence, but also false hosts or trap crops, which induce suicidal Striga seed germination, thereby diminishing their effectiveness. In order to better understand these AM-induced effects, we tested the influence of root colonization by different AM fungi on the seed-germination activity of root exudates of the Striga hermonthica nonhost plants cowpea and cotton on S. hermonthica. We also tested the effect of AM fungi on the seed-germination activity of the Striga gesnerioides host plant cowpea on S. gesnerioides. Moreover, we studied whether mycorrhization affects the transport of seed-germination activity to above-ground plant parts. Mycorrhization not only resulted in a lower seed germination of S. gesnerioides in the presence of root exudates of the S. gesnerioides host cowpea but also seed germination of S. hermonthica was also lower in the presence of root exudates of the S. hermonthica nonhosts cowpea and cotton. Downregulation of the Striga seed-germination activity occurs not only in root exudates upon root colonization by different AM fungi but also in the compounds produced by stems. The lowered seed-germination activity does not appear to depend on the presence of seed germination inhibitors in the root exudates of mycorrhizal plants. The implication for Striga control in the field is discussed.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">19238457</PMID><DateCompleted><Year>2009</Year><Month>06</Month><Day>12</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1432-1890</ISSN><JournalIssue CitedMedium="Internet"><Volume>19</Volume><Issue>5</Issue><PubDate><Year>2009</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Mycorrhiza</Title><ISOAbbreviation>Mycorrhiza</ISOAbbreviation></Journal><ArticleTitle>Striga seed-germination activity of root exudates and compounds present in stems of Striga host and nonhost (trap crop) plants is reduced due to root colonization by arbuscular mycorrhizal fungi.</ArticleTitle><Pagination><MedlinePgn>287-294</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1007/s00572-009-0235-4</ELocationID><Abstract><AbstractText>Root colonization by arbuscular mycorrhizal (AM) fungi reduces stimulation of seed germination of the plant parasite Striga (Orobanchaceae). This reduction can affect not only host plants for Striga, resulting in a lower parasite incidence, but also false hosts or trap crops, which induce suicidal Striga seed germination, thereby diminishing their effectiveness. In order to better understand these AM-induced effects, we tested the influence of root colonization by different AM fungi on the seed-germination activity of root exudates of the Striga hermonthica nonhost plants cowpea and cotton on S. hermonthica. We also tested the effect of AM fungi on the seed-germination activity of the Striga gesnerioides host plant cowpea on S. gesnerioides. Moreover, we studied whether mycorrhization affects the transport of seed-germination activity to above-ground plant parts. Mycorrhization not only resulted in a lower seed germination of S. gesnerioides in the presence of root exudates of the S. gesnerioides host cowpea but also seed germination of S. hermonthica was also lower in the presence of root exudates of the S. hermonthica nonhosts cowpea and cotton. Downregulation of the Striga seed-germination activity occurs not only in root exudates upon root colonization by different AM fungi but also in the compounds produced by stems. The lowered seed-germination activity does not appear to depend on the presence of seed germination inhibitors in the root exudates of mycorrhizal plants. The implication for Striga control in the field is discussed.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Lendzemo</LastName><ForeName>V</ForeName><Initials>V</Initials><AffiliationInfo><Affiliation>Institute of Agricultural Research for Development, Maroua, P. O. 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Box 47, 6700 AA, Wageningen, The Netherlands.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Vierheilig</LastName><ForeName>H</ForeName><Initials>H</Initials><AffiliationInfo><Affiliation>Institut für Pflanzenschutz, Universität für Bodenkultur Wien, 1190, Wien, Austria. horst.vierheilig@eez.csic.es.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Departamento de Microbiología, Estación Experimental de Zaidín, CSIC, 18008, Granada, Spain. horst.vierheilig@eez.csic.es.</Affiliation></AffiliationInfo></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>24</Day></ArticleDate></Article><MedlineJournalInfo><Country>Germany</Country><MedlineTA>Mycorrhiza</MedlineTA><NlmUniqueID>100955036</NlmUniqueID><ISSNLinking>0940-6360</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D053147">Plant Exudates</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D018525" MajorTopicYN="Y">Germination</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019684" MajorTopicYN="N">Magnoliopsida</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000254" MajorTopicYN="Y">growth & development</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D053147" MajorTopicYN="N">Plant Exudates</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018517" MajorTopicYN="N">Plant Roots</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018547" MajorTopicYN="N">Plant Stems</DescriptorName><QualifierName UI="Q000378" MajorTopicYN="Y">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="N">microbiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012639" MajorTopicYN="N">Seeds</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D034362" MajorTopicYN="N">Striga</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2008</Year><Month>11</Month><Day>10</Day></PubMedPubDate><PubMedPubDate PubStatus="accepted"><Year>2009</Year><Month>02</Month><Day>09</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2009</Year><Month>2</Month><Day>25</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2009</Year><Month>2</Month><Day>25</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2009</Year><Month>6</Month><Day>13</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">19238457</ArticleId><ArticleId IdType="doi">10.1007/s00572-009-0235-4</ArticleId><ArticleId IdType="pii">10.1007/s00572-009-0235-4</ArticleId></ArticleIdList><ReferenceList><Reference><Citation>J Exp Bot. 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