The potential role of ectomycorrhizal fungi in determining Douglas-fir resistance to defoliation by the western spruce budworm (Lepidoptera: Tortricidae).
Identifieur interne : 003891 ( Main/Corpus ); précédent : 003890; suivant : 003892The potential role of ectomycorrhizal fungi in determining Douglas-fir resistance to defoliation by the western spruce budworm (Lepidoptera: Tortricidae).
Auteurs : Barbara L. Palermo ; Karen M. Clancy ; George W. KochSource :
- Journal of economic entomology [ 0022-0493 ] ; 2003.
English descriptors
- KwdEn :
- Animals (MeSH), Food Preferences (MeSH), Genotype (MeSH), Lepidoptera (physiology), Mycorrhizae (physiology), Phenotype (MeSH), Plant Leaves (chemistry), Plant Leaves (parasitology), Pseudotsuga (chemistry), Pseudotsuga (metabolism), Pseudotsuga (microbiology), Pseudotsuga (parasitology), Seedlings (chemistry), Seedlings (parasitology).
- MESH :
- chemistry : Plant Leaves, Pseudotsuga, Seedlings.
- metabolism : Pseudotsuga.
- microbiology : Pseudotsuga.
- parasitology : Plant Leaves, Pseudotsuga, Seedlings.
- physiology : Lepidoptera, Mycorrhizae.
- Animals, Food Preferences, Genotype, Phenotype.
Abstract
There is phenotypic variation among individual trees of interior Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) in their resistance to defoliation by the western spruce budworm (Choristoneura occidentalis Freeman). We evaluated the potential role of ectomycorrhizal fungi in determining this resistance using half-sib seedlings derived from parent trees that are resistant versus susceptible to budworm defoliation in the field. The seedlings were inoculated with Laccaria bicolor ectomycorrhizal fungi, fertilized, or untreated. Approximately 48 d after treatment, late-instar larvae from a nondiapausing laboratory colony of C. occidentalis were allowed to feed on pairs of resistant versus susceptible seedlings for 1 wk. Chemical analyses of current-year shoots for nitrogen (N), phosphorus (P), magnesium (Mg), and zinc (Zn) indicated that the fungus increased foliar concentrations of P and Mg in resistant seedlings, but it did not increase their growth rate. However, L. bicolor had no effect on foliar concentrations of P or Mg in susceptible seedlings, even though seedling growth rates increased slightly in response to the inoculation. L. bicolor had no effect on foliar levels of N or Zn in any of the seedlings. As expected, fertilization increased levels of N and P in the foliage of both resistant and susceptible seedlings, but it did not affect levels of Mg and Zn. Surprisingly, the fertilizer treatment had no effect on seedling growth rates. Despite these differences, late-instar budworms showed no feeding preference among untreated, mycorrhizal, or fertilized seedlings. The fact that seedlings from resistant versus susceptible Douglas-firs responded differently to the L. bicolor treatment lends preliminary support to the hypothesis that ecotmycorrhizae might play a role in Douglas-fir resistance to damage from the western spruce budworm. Finally, differences in foliar concentrations of N and P among untreated seedlings from different maternal trees suggested that foliar nutritional chemistry is influenced by the tree's genotype.
DOI: 10.1603/0022-0493-96.3.783
PubMed: 12852617
Links to Exploration step
pubmed:12852617Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">The potential role of ectomycorrhizal fungi in determining Douglas-fir resistance to defoliation by the western spruce budworm (Lepidoptera: Tortricidae).</title><author><name sortKey="Palermo, Barbara L" sort="Palermo, Barbara L" uniqKey="Palermo B" first="Barbara L" last="Palermo">Barbara L. Palermo</name><affiliation><nlm:affiliation>Department of Biological Sciences, Northern Arizona University, P.O. Box 5640, Flagstaff, AZ 86011-5640, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Clancy, Karen M" sort="Clancy, Karen M" uniqKey="Clancy K" first="Karen M" last="Clancy">Karen M. Clancy</name></author><author><name sortKey="Koch, George W" sort="Koch, George W" uniqKey="Koch G" first="George W" last="Koch">George W. Koch</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2003">2003</date><idno type="RBID">pubmed:12852617</idno><idno type="pmid">12852617</idno><idno type="doi">10.1603/0022-0493-96.3.783</idno><idno type="wicri:Area/Main/Corpus">003891</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">003891</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">The potential role of ectomycorrhizal fungi in determining Douglas-fir resistance to defoliation by the western spruce budworm (Lepidoptera: Tortricidae).</title><author><name sortKey="Palermo, Barbara L" sort="Palermo, Barbara L" uniqKey="Palermo B" first="Barbara L" last="Palermo">Barbara L. Palermo</name><affiliation><nlm:affiliation>Department of Biological Sciences, Northern Arizona University, P.O. Box 5640, Flagstaff, AZ 86011-5640, USA.</nlm:affiliation></affiliation></author><author><name sortKey="Clancy, Karen M" sort="Clancy, Karen M" uniqKey="Clancy K" first="Karen M" last="Clancy">Karen M. Clancy</name></author><author><name sortKey="Koch, George W" sort="Koch, George W" uniqKey="Koch G" first="George W" last="Koch">George W. Koch</name></author></analytic><series><title level="j">Journal of economic entomology</title><idno type="ISSN">0022-0493</idno><imprint><date when="2003" type="published">2003</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term><term>Food Preferences (MeSH)</term><term>Genotype (MeSH)</term><term>Lepidoptera (physiology)</term><term>Mycorrhizae (physiology)</term><term>Phenotype (MeSH)</term><term>Plant Leaves (chemistry)</term><term>Plant Leaves (parasitology)</term><term>Pseudotsuga (chemistry)</term><term>Pseudotsuga (metabolism)</term><term>Pseudotsuga (microbiology)</term><term>Pseudotsuga (parasitology)</term><term>Seedlings (chemistry)</term><term>Seedlings (parasitology)</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Plant Leaves</term><term>Pseudotsuga</term><term>Seedlings</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Pseudotsuga</term></keywords><keywords scheme="MESH" qualifier="microbiology" xml:lang="en"><term>Pseudotsuga</term></keywords><keywords scheme="MESH" qualifier="parasitology" xml:lang="en"><term>Plant Leaves</term><term>Pseudotsuga</term><term>Seedlings</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Lepidoptera</term><term>Mycorrhizae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Food Preferences</term><term>Genotype</term><term>Phenotype</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">There is phenotypic variation among individual trees of interior Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) in their resistance to defoliation by the western spruce budworm (Choristoneura occidentalis Freeman). We evaluated the potential role of ectomycorrhizal fungi in determining this resistance using half-sib seedlings derived from parent trees that are resistant versus susceptible to budworm defoliation in the field. The seedlings were inoculated with Laccaria bicolor ectomycorrhizal fungi, fertilized, or untreated. Approximately 48 d after treatment, late-instar larvae from a nondiapausing laboratory colony of C. occidentalis were allowed to feed on pairs of resistant versus susceptible seedlings for 1 wk. Chemical analyses of current-year shoots for nitrogen (N), phosphorus (P), magnesium (Mg), and zinc (Zn) indicated that the fungus increased foliar concentrations of P and Mg in resistant seedlings, but it did not increase their growth rate. However, L. bicolor had no effect on foliar concentrations of P or Mg in susceptible seedlings, even though seedling growth rates increased slightly in response to the inoculation. L. bicolor had no effect on foliar levels of N or Zn in any of the seedlings. As expected, fertilization increased levels of N and P in the foliage of both resistant and susceptible seedlings, but it did not affect levels of Mg and Zn. Surprisingly, the fertilizer treatment had no effect on seedling growth rates. Despite these differences, late-instar budworms showed no feeding preference among untreated, mycorrhizal, or fertilized seedlings. The fact that seedlings from resistant versus susceptible Douglas-firs responded differently to the L. bicolor treatment lends preliminary support to the hypothesis that ecotmycorrhizae might play a role in Douglas-fir resistance to damage from the western spruce budworm. Finally, differences in foliar concentrations of N and P among untreated seedlings from different maternal trees suggested that foliar nutritional chemistry is influenced by the tree's genotype.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">12852617</PMID><DateCompleted><Year>2004</Year><Month>01</Month><Day>13</Day></DateCompleted><DateRevised><Year>2019</Year><Month>05</Month><Day>13</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0022-0493</ISSN><JournalIssue CitedMedium="Print"><Volume>96</Volume><Issue>3</Issue><PubDate><Year>2003</Year><Month>Jun</Month></PubDate></JournalIssue><Title>Journal of economic entomology</Title><ISOAbbreviation>J Econ Entomol</ISOAbbreviation></Journal><ArticleTitle>The potential role of ectomycorrhizal fungi in determining Douglas-fir resistance to defoliation by the western spruce budworm (Lepidoptera: Tortricidae).</ArticleTitle><Pagination><MedlinePgn>783-91</MedlinePgn></Pagination><Abstract><AbstractText>There is phenotypic variation among individual trees of interior Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) in their resistance to defoliation by the western spruce budworm (Choristoneura occidentalis Freeman). We evaluated the potential role of ectomycorrhizal fungi in determining this resistance using half-sib seedlings derived from parent trees that are resistant versus susceptible to budworm defoliation in the field. The seedlings were inoculated with Laccaria bicolor ectomycorrhizal fungi, fertilized, or untreated. Approximately 48 d after treatment, late-instar larvae from a nondiapausing laboratory colony of C. occidentalis were allowed to feed on pairs of resistant versus susceptible seedlings for 1 wk. Chemical analyses of current-year shoots for nitrogen (N), phosphorus (P), magnesium (Mg), and zinc (Zn) indicated that the fungus increased foliar concentrations of P and Mg in resistant seedlings, but it did not increase their growth rate. However, L. bicolor had no effect on foliar concentrations of P or Mg in susceptible seedlings, even though seedling growth rates increased slightly in response to the inoculation. L. bicolor had no effect on foliar levels of N or Zn in any of the seedlings. As expected, fertilization increased levels of N and P in the foliage of both resistant and susceptible seedlings, but it did not affect levels of Mg and Zn. Surprisingly, the fertilizer treatment had no effect on seedling growth rates. Despite these differences, late-instar budworms showed no feeding preference among untreated, mycorrhizal, or fertilized seedlings. The fact that seedlings from resistant versus susceptible Douglas-firs responded differently to the L. bicolor treatment lends preliminary support to the hypothesis that ecotmycorrhizae might play a role in Douglas-fir resistance to damage from the western spruce budworm. Finally, differences in foliar concentrations of N and P among untreated seedlings from different maternal trees suggested that foliar nutritional chemistry is influenced by the tree's genotype.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Palermo</LastName><ForeName>Barbara L</ForeName><Initials>BL</Initials><AffiliationInfo><Affiliation>Department of Biological Sciences, Northern Arizona University, P.O. Box 5640, Flagstaff, AZ 86011-5640, USA.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Clancy</LastName><ForeName>Karen M</ForeName><Initials>KM</Initials></Author><Author ValidYN="Y"><LastName>Koch</LastName><ForeName>George W</ForeName><Initials>GW</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></Article><MedlineJournalInfo><Country>England</Country><MedlineTA>J Econ Entomol</MedlineTA><NlmUniqueID>2985127R</NlmUniqueID><ISSNLinking>0022-0493</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005518" MajorTopicYN="N">Food Preferences</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005838" MajorTopicYN="N">Genotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D007915" MajorTopicYN="N">Lepidoptera</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D038821" MajorTopicYN="N">Mycorrhizae</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D010641" MajorTopicYN="N">Phenotype</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D018515" MajorTopicYN="N">Plant Leaves</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000469" MajorTopicYN="N">parasitology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D028224" MajorTopicYN="N">Pseudotsuga</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000378" MajorTopicYN="N">metabolism</QualifierName><QualifierName UI="Q000382" MajorTopicYN="Y">microbiology</QualifierName><QualifierName UI="Q000469" MajorTopicYN="Y">parasitology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D036226" MajorTopicYN="N">Seedlings</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000469" MajorTopicYN="N">parasitology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2003</Year><Month>7</Month><Day>11</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2004</Year><Month>1</Month><Day>14</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2003</Year><Month>7</Month><Day>11</Day><Hour>5</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">12852617</ArticleId><ArticleId IdType="doi">10.1603/0022-0493-96.3.783</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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