In a belowground multitrophic interaction, Trichoderma harzianum induces maize root herbivore tolerance against Phyllophaga vetula

BACKGROUND Trichoderma spp. are soil fungi that interact with plant roots and associated biota such as other microorganisms and soil fauna. However, information about their interactions with root‐feeding insects is limited. Here, interactions between Trichoderma harzianum and the root‐feeding insect...

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Veröffentlicht in:Pest management science 2021-09, Vol.77 (9), p.3952-3963
Hauptverfasser: Contreras‐Cornejo, Hexon Angel, Macías‐Rodríguez, Lourdes, Real‐Santillán, Raúl Omar, López‐Carmona, Dante, García‐Gómez, Griselda, Galicia‐Gallardo, Ana Paola, Alfaro‐Cuevas, Ruth, González‐Esquivel, Carlos E, Najera‐Rincón, Miguel Bernardo, Adame‐Garnica, Sandra Goretti, Rebollar‐Alviter, Angel, Álvarez‐Navarrete, Mariana, Larsen, John
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container_end_page 3963
container_issue 9
container_start_page 3952
container_title Pest management science
container_volume 77
creator Contreras‐Cornejo, Hexon Angel
Macías‐Rodríguez, Lourdes
Real‐Santillán, Raúl Omar
López‐Carmona, Dante
García‐Gómez, Griselda
Galicia‐Gallardo, Ana Paola
Alfaro‐Cuevas, Ruth
González‐Esquivel, Carlos E
Najera‐Rincón, Miguel Bernardo
Adame‐Garnica, Sandra Goretti
Rebollar‐Alviter, Angel
Álvarez‐Navarrete, Mariana
Larsen, John
description BACKGROUND Trichoderma spp. are soil fungi that interact with plant roots and associated biota such as other microorganisms and soil fauna. However, information about their interactions with root‐feeding insects is limited. Here, interactions between Trichoderma harzianum and the root‐feeding insect Phyllophaga vetula, a common insect pest in maize agroecosystems, were examined. RESULTS Applications of T. harzianum and P. vetula to the root system increased and decreased maize growth, respectively. Induced tolerance against herbivore attack was provided by T. harzianum maintaining a robust and functional root system as evidenced by the increased uptake of Cu, Ca, Mg, Na and K. Herbivore tolerance also coincided with changes in the emission of root volatile terpenes known to induce indirect defense responses and attract natural enemies of the herbivore. More importantly, T. harzianum induced de novo emission of several sesquiterpenes such as β‐caryophyllene and δ‐cadinene. In addition, single and combined applications of T. harzianum and P. vetula altered the sucrose content of the roots. Finally, T. harzianum produced 6‐pentyl‐2H‐pyran‐2‐one (6‐PP) a volatile compound that may act as an antifeedant‐signaling compound mitigating root herbivory by P. vetula. CONCLUSION Our results provide novel information about belowground multitrophic plant–microbe–arthropod interactions between T. harzianum and P. vetula in the maize rhizosphere resulting in alterations in maize phenotypic plant responses, inducing root herbivore tolerance. Effects of T. harzianumon maize roots infested with P. vetula. (a) Grubs on their natural soil substrate. Morphological characteristics of a P. vetula second‐instar larva showing in (b) the presence of palidia in the raster observed with an objetive of 1.6X, (c) the cephalic capsule (head), and (d) the ventral plane of the clypeus showing the typical structures as the laeophoba, haotomerum and helus at the epipharynx observed with a manification of 5.0 X. (e) Effects of T. harzianum, P. vetula and their interaction on the maize roots. The image in the right side shows the bochemical componets involved in the root herbivore tolerance induced by the plant beneficial fungus. © 2021 Society of Chemical Industry.
doi_str_mv 10.1002/ps.6415
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However, information about their interactions with root‐feeding insects is limited. Here, interactions between Trichoderma harzianum and the root‐feeding insect Phyllophaga vetula, a common insect pest in maize agroecosystems, were examined. RESULTS Applications of T. harzianum and P. vetula to the root system increased and decreased maize growth, respectively. Induced tolerance against herbivore attack was provided by T. harzianum maintaining a robust and functional root system as evidenced by the increased uptake of Cu, Ca, Mg, Na and K. Herbivore tolerance also coincided with changes in the emission of root volatile terpenes known to induce indirect defense responses and attract natural enemies of the herbivore. More importantly, T. harzianum induced de novo emission of several sesquiterpenes such as β‐caryophyllene and δ‐cadinene. In addition, single and combined applications of T. harzianum and P. vetula altered the sucrose content of the roots. Finally, T. harzianum produced 6‐pentyl‐2H‐pyran‐2‐one (6‐PP) a volatile compound that may act as an antifeedant‐signaling compound mitigating root herbivory by P. vetula. CONCLUSION Our results provide novel information about belowground multitrophic plant–microbe–arthropod interactions between T. harzianum and P. vetula in the maize rhizosphere resulting in alterations in maize phenotypic plant responses, inducing root herbivore tolerance. Effects of T. harzianumon maize roots infested with P. vetula. (a) Grubs on their natural soil substrate. Morphological characteristics of a P. vetula second‐instar larva showing in (b) the presence of palidia in the raster observed with an objetive of 1.6X, (c) the cephalic capsule (head), and (d) the ventral plane of the clypeus showing the typical structures as the laeophoba, haotomerum and helus at the epipharynx observed with a manification of 5.0 X. (e) Effects of T. harzianum, P. vetula and their interaction on the maize roots. The image in the right side shows the bochemical componets involved in the root herbivore tolerance induced by the plant beneficial fungus. © 2021 Society of Chemical Industry.</description><identifier>ISSN: 1526-498X</identifier><identifier>EISSN: 1526-4998</identifier><identifier>DOI: 10.1002/ps.6415</identifier><identifier>PMID: 33851514</identifier><language>eng</language><publisher>Chichester, UK: John Wiley &amp; Sons, Ltd</publisher><subject>Agricultural ecosystems ; Biota ; Cadinene ; Caryophyllene ; Copper ; Corn ; Emission ; Emissions ; Fungi ; Herbivores ; Herbivory ; Insects ; Microorganisms ; Natural enemies ; Phyllophaga vetula ; plant defense ; Plant roots ; Rhizosphere ; root herbivory ; Roots ; secondary metabolites ; Sesquiterpenes ; Soil fauna ; Soil microorganisms ; Soils ; Sucrose ; Terpenes ; Trichoderma harzianum ; Volatile compounds</subject><ispartof>Pest management science, 2021-09, Vol.77 (9), p.3952-3963</ispartof><rights>2021 Society of Chemical Industry.</rights><rights>Copyright © 2021 Society of Chemical Industry</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3455-5c4b21610b7fbcf6da69dd7e82c6d48d58b261e66b5ccbfbac40ea7858c39fcd3</citedby><cites>FETCH-LOGICAL-c3455-5c4b21610b7fbcf6da69dd7e82c6d48d58b261e66b5ccbfbac40ea7858c39fcd3</cites><orcidid>0000-0001-8513-2501 ; 0000-0003-4576-5827 ; 0000-0002-6641-456X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fps.6415$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fps.6415$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33851514$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Contreras‐Cornejo, Hexon Angel</creatorcontrib><creatorcontrib>Macías‐Rodríguez, Lourdes</creatorcontrib><creatorcontrib>Real‐Santillán, Raúl Omar</creatorcontrib><creatorcontrib>López‐Carmona, Dante</creatorcontrib><creatorcontrib>García‐Gómez, Griselda</creatorcontrib><creatorcontrib>Galicia‐Gallardo, Ana Paola</creatorcontrib><creatorcontrib>Alfaro‐Cuevas, Ruth</creatorcontrib><creatorcontrib>González‐Esquivel, Carlos E</creatorcontrib><creatorcontrib>Najera‐Rincón, Miguel Bernardo</creatorcontrib><creatorcontrib>Adame‐Garnica, Sandra Goretti</creatorcontrib><creatorcontrib>Rebollar‐Alviter, Angel</creatorcontrib><creatorcontrib>Álvarez‐Navarrete, Mariana</creatorcontrib><creatorcontrib>Larsen, John</creatorcontrib><title>In a belowground multitrophic interaction, Trichoderma harzianum induces maize root herbivore tolerance against Phyllophaga vetula</title><title>Pest management science</title><addtitle>Pest Manag Sci</addtitle><description>BACKGROUND Trichoderma spp. are soil fungi that interact with plant roots and associated biota such as other microorganisms and soil fauna. However, information about their interactions with root‐feeding insects is limited. Here, interactions between Trichoderma harzianum and the root‐feeding insect Phyllophaga vetula, a common insect pest in maize agroecosystems, were examined. RESULTS Applications of T. harzianum and P. vetula to the root system increased and decreased maize growth, respectively. Induced tolerance against herbivore attack was provided by T. harzianum maintaining a robust and functional root system as evidenced by the increased uptake of Cu, Ca, Mg, Na and K. Herbivore tolerance also coincided with changes in the emission of root volatile terpenes known to induce indirect defense responses and attract natural enemies of the herbivore. More importantly, T. harzianum induced de novo emission of several sesquiterpenes such as β‐caryophyllene and δ‐cadinene. In addition, single and combined applications of T. harzianum and P. vetula altered the sucrose content of the roots. Finally, T. harzianum produced 6‐pentyl‐2H‐pyran‐2‐one (6‐PP) a volatile compound that may act as an antifeedant‐signaling compound mitigating root herbivory by P. vetula. CONCLUSION Our results provide novel information about belowground multitrophic plant–microbe–arthropod interactions between T. harzianum and P. vetula in the maize rhizosphere resulting in alterations in maize phenotypic plant responses, inducing root herbivore tolerance. Effects of T. harzianumon maize roots infested with P. vetula. (a) Grubs on their natural soil substrate. Morphological characteristics of a P. vetula second‐instar larva showing in (b) the presence of palidia in the raster observed with an objetive of 1.6X, (c) the cephalic capsule (head), and (d) the ventral plane of the clypeus showing the typical structures as the laeophoba, haotomerum and helus at the epipharynx observed with a manification of 5.0 X. (e) Effects of T. harzianum, P. vetula and their interaction on the maize roots. 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However, information about their interactions with root‐feeding insects is limited. Here, interactions between Trichoderma harzianum and the root‐feeding insect Phyllophaga vetula, a common insect pest in maize agroecosystems, were examined. RESULTS Applications of T. harzianum and P. vetula to the root system increased and decreased maize growth, respectively. Induced tolerance against herbivore attack was provided by T. harzianum maintaining a robust and functional root system as evidenced by the increased uptake of Cu, Ca, Mg, Na and K. Herbivore tolerance also coincided with changes in the emission of root volatile terpenes known to induce indirect defense responses and attract natural enemies of the herbivore. More importantly, T. harzianum induced de novo emission of several sesquiterpenes such as β‐caryophyllene and δ‐cadinene. In addition, single and combined applications of T. harzianum and P. vetula altered the sucrose content of the roots. Finally, T. harzianum produced 6‐pentyl‐2H‐pyran‐2‐one (6‐PP) a volatile compound that may act as an antifeedant‐signaling compound mitigating root herbivory by P. vetula. CONCLUSION Our results provide novel information about belowground multitrophic plant–microbe–arthropod interactions between T. harzianum and P. vetula in the maize rhizosphere resulting in alterations in maize phenotypic plant responses, inducing root herbivore tolerance. Effects of T. harzianumon maize roots infested with P. vetula. (a) Grubs on their natural soil substrate. Morphological characteristics of a P. vetula second‐instar larva showing in (b) the presence of palidia in the raster observed with an objetive of 1.6X, (c) the cephalic capsule (head), and (d) the ventral plane of the clypeus showing the typical structures as the laeophoba, haotomerum and helus at the epipharynx observed with a manification of 5.0 X. (e) Effects of T. harzianum, P. vetula and their interaction on the maize roots. The image in the right side shows the bochemical componets involved in the root herbivore tolerance induced by the plant beneficial fungus. © 2021 Society of Chemical Industry.</abstract><cop>Chichester, UK</cop><pub>John Wiley &amp; Sons, Ltd</pub><pmid>33851514</pmid><doi>10.1002/ps.6415</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0001-8513-2501</orcidid><orcidid>https://orcid.org/0000-0003-4576-5827</orcidid><orcidid>https://orcid.org/0000-0002-6641-456X</orcidid></addata></record>
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1526-4998
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source Wiley Online Library All Journals
subjects Agricultural ecosystems
Biota
Cadinene
Caryophyllene
Copper
Corn
Emission
Emissions
Fungi
Herbivores
Herbivory
Insects
Microorganisms
Natural enemies
Phyllophaga vetula
plant defense
Plant roots
Rhizosphere
root herbivory
Roots
secondary metabolites
Sesquiterpenes
Soil fauna
Soil microorganisms
Soils
Sucrose
Terpenes
Trichoderma harzianum
Volatile compounds
title In a belowground multitrophic interaction, Trichoderma harzianum induces maize root herbivore tolerance against Phyllophaga vetula
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