Ultraviolet radiation modulates both constitutive and inducible plant defenses against thrips but is dose and plant genotype dependent

Rocío Escobar-Bravo*, Charlotte Nederpel, Sofía Naranjo, Hye Kyong Kim, María José Rodríguez-López, Gang Chen, Gaétan Glauser, Kirsten A. Leiss, Peter G.L. Klinkhamer

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Ultraviolet (UV) radiation has emerged as an environmental cue with potential uses to enhance plant protection against arthropod pests in agriculture. UV can augment constitutive and inducible plant defenses against herbivorous arthropods. Here we investigated whether application of supplemental UV to chrysanthemum (Chrysanthemum × morifolium Ramat) cuttings during their rooting phase enhanced plant resistance to an important insect pest, Western flower thrips (Frankliniella occidentalis). For this, we analyzed how several daily UV exposure times affected plant damage by thrips on three different chrysanthemum cultivars. The most effective UV dose and responsive cultivar were further used to determine the UV effects on host plant preference by thrips, leaf metabolome and the induction of jasmonic acid (JA)-associated defenses. Our results showed that while short UV daily exposure times increased chrysanthemum resistance to thrips, longer exposure times had the opposite effect. Furthermore, we showed that UV-mediated induction of chrysanthemum resistance to thrips was genotype dependent and can persist after the end of the of the UV treatment. Yet, this induction was not transferred to the next generation from mother plants to cuttings. Nontargeted metabolomic, enzymatic and hormone analyses further revealed that UV slightly affected the leaf metabolome of chrysanthemum plants, and it enhanced the induction of JA-associated signaling after thrips infestation. Taken together, our results suggest that supplemental UV might modulate both constitutive and inducible chrysanthemum defenses against thrips.

Original languageEnglish
Number of pages13
JournalJournal of Pest Science
DOIs
Publication statusE-pub ahead of print - 31 Oct 2019

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Chrysanthemum
Thysanoptera
ultraviolet radiation
genotype
dosage
exposure duration
metabolome
Frankliniella occidentalis
jasmonic acid
arthropod pests
Chrysanthemum morifolium
metabolomics
cultivars
plant damage
plant protection
insect pests
arthropods
rooting
leaves
host plants

Keywords

  • Frankliniella occidentalis
  • Jasmonic acid
  • Light
  • Phenolics
  • Plant defenses
  • UV

Cite this

Escobar-Bravo, Rocío ; Nederpel, Charlotte ; Naranjo, Sofía ; Kim, Hye Kyong ; Rodríguez-López, María José ; Chen, Gang ; Glauser, Gaétan ; Leiss, Kirsten A. ; Klinkhamer, Peter G.L. / Ultraviolet radiation modulates both constitutive and inducible plant defenses against thrips but is dose and plant genotype dependent. In: Journal of Pest Science. 2019.
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title = "Ultraviolet radiation modulates both constitutive and inducible plant defenses against thrips but is dose and plant genotype dependent",
abstract = "Ultraviolet (UV) radiation has emerged as an environmental cue with potential uses to enhance plant protection against arthropod pests in agriculture. UV can augment constitutive and inducible plant defenses against herbivorous arthropods. Here we investigated whether application of supplemental UV to chrysanthemum (Chrysanthemum × morifolium Ramat) cuttings during their rooting phase enhanced plant resistance to an important insect pest, Western flower thrips (Frankliniella occidentalis). For this, we analyzed how several daily UV exposure times affected plant damage by thrips on three different chrysanthemum cultivars. The most effective UV dose and responsive cultivar were further used to determine the UV effects on host plant preference by thrips, leaf metabolome and the induction of jasmonic acid (JA)-associated defenses. Our results showed that while short UV daily exposure times increased chrysanthemum resistance to thrips, longer exposure times had the opposite effect. Furthermore, we showed that UV-mediated induction of chrysanthemum resistance to thrips was genotype dependent and can persist after the end of the of the UV treatment. Yet, this induction was not transferred to the next generation from mother plants to cuttings. Nontargeted metabolomic, enzymatic and hormone analyses further revealed that UV slightly affected the leaf metabolome of chrysanthemum plants, and it enhanced the induction of JA-associated signaling after thrips infestation. Taken together, our results suggest that supplemental UV might modulate both constitutive and inducible chrysanthemum defenses against thrips.",
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day = "31",
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Ultraviolet radiation modulates both constitutive and inducible plant defenses against thrips but is dose and plant genotype dependent. / Escobar-Bravo, Rocío; Nederpel, Charlotte; Naranjo, Sofía; Kim, Hye Kyong; Rodríguez-López, María José; Chen, Gang; Glauser, Gaétan; Leiss, Kirsten A.; Klinkhamer, Peter G.L.

In: Journal of Pest Science, 31.10.2019.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Ultraviolet radiation modulates both constitutive and inducible plant defenses against thrips but is dose and plant genotype dependent

AU - Escobar-Bravo, Rocío

AU - Nederpel, Charlotte

AU - Naranjo, Sofía

AU - Kim, Hye Kyong

AU - Rodríguez-López, María José

AU - Chen, Gang

AU - Glauser, Gaétan

AU - Leiss, Kirsten A.

AU - Klinkhamer, Peter G.L.

PY - 2019/10/31

Y1 - 2019/10/31

N2 - Ultraviolet (UV) radiation has emerged as an environmental cue with potential uses to enhance plant protection against arthropod pests in agriculture. UV can augment constitutive and inducible plant defenses against herbivorous arthropods. Here we investigated whether application of supplemental UV to chrysanthemum (Chrysanthemum × morifolium Ramat) cuttings during their rooting phase enhanced plant resistance to an important insect pest, Western flower thrips (Frankliniella occidentalis). For this, we analyzed how several daily UV exposure times affected plant damage by thrips on three different chrysanthemum cultivars. The most effective UV dose and responsive cultivar were further used to determine the UV effects on host plant preference by thrips, leaf metabolome and the induction of jasmonic acid (JA)-associated defenses. Our results showed that while short UV daily exposure times increased chrysanthemum resistance to thrips, longer exposure times had the opposite effect. Furthermore, we showed that UV-mediated induction of chrysanthemum resistance to thrips was genotype dependent and can persist after the end of the of the UV treatment. Yet, this induction was not transferred to the next generation from mother plants to cuttings. Nontargeted metabolomic, enzymatic and hormone analyses further revealed that UV slightly affected the leaf metabolome of chrysanthemum plants, and it enhanced the induction of JA-associated signaling after thrips infestation. Taken together, our results suggest that supplemental UV might modulate both constitutive and inducible chrysanthemum defenses against thrips.

AB - Ultraviolet (UV) radiation has emerged as an environmental cue with potential uses to enhance plant protection against arthropod pests in agriculture. UV can augment constitutive and inducible plant defenses against herbivorous arthropods. Here we investigated whether application of supplemental UV to chrysanthemum (Chrysanthemum × morifolium Ramat) cuttings during their rooting phase enhanced plant resistance to an important insect pest, Western flower thrips (Frankliniella occidentalis). For this, we analyzed how several daily UV exposure times affected plant damage by thrips on three different chrysanthemum cultivars. The most effective UV dose and responsive cultivar were further used to determine the UV effects on host plant preference by thrips, leaf metabolome and the induction of jasmonic acid (JA)-associated defenses. Our results showed that while short UV daily exposure times increased chrysanthemum resistance to thrips, longer exposure times had the opposite effect. Furthermore, we showed that UV-mediated induction of chrysanthemum resistance to thrips was genotype dependent and can persist after the end of the of the UV treatment. Yet, this induction was not transferred to the next generation from mother plants to cuttings. Nontargeted metabolomic, enzymatic and hormone analyses further revealed that UV slightly affected the leaf metabolome of chrysanthemum plants, and it enhanced the induction of JA-associated signaling after thrips infestation. Taken together, our results suggest that supplemental UV might modulate both constitutive and inducible chrysanthemum defenses against thrips.

KW - Frankliniella occidentalis

KW - Jasmonic acid

KW - Light

KW - Phenolics

KW - Plant defenses

KW - UV

U2 - 10.1007/s10340-019-01166-w

DO - 10.1007/s10340-019-01166-w

M3 - Article

JO - Journal of Pest Science

JF - Journal of Pest Science

SN - 1612-4758

ER -