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The role of ascorbate–glutathione system and volatiles emitted by insect-damaged lettuce roots as navigation signals for insect and slug parasitic nematodes [Elektronski vir]Laznik, Žiga, 1983- ...The effect of wireworm-damaged lettuce roots on the antioxidative defense system (ascorbate–glutathione cycle, photosynthetic pigments) and movement of insect/slug parasitic nematodes towards ... determined root exudates was studied in a glasshouse experiment. Lettuce seedlings were grown in a substrate soil in the absence/presence of wireworms (Elateridae). The ascorbate– glutathione system and photosynthetic pigments were analyzed by HPLC, while volatile organic compounds (VOC) emitted by lettuce roots were investigated by GC-MS. Herbivore-induced root compounds, namely 2,4-nonadienal, glutathione, and ascorbic acid, were selected for a chemotaxis assay with nematodes Steinernema feltiae, S. carpocapsae, Heterorhabditis bacteriophora, Phasmarhabditis papillosa, and Oscheius myriophilus. Root pests had a negative effect on the content of photosynthetic pigments in the leaves of infested plants, indicating that they reacted to the presence of reactive oxygen species (ROS). Using lettuce as a model plant, we recognized the ascorbate–glutathione system as a redox hub in defense response against wireworms and analyzed its role in root-exudate-mediated chemotaxis of nematodes. Infected plants also demonstrated increased levels of volatile 2,4-nonadienal. Entomopathogenic nematodes (EPNs, S. feltiae, S. carpocapsae, and H. bacteriophora) proved to be more mobile than parasitic nematodes O. myriophilus and P. papillosa towards chemotaxis compounds. Among them, 2,4-nonadienal repelled all tested nematodes. Most exudates that are involved in belowground tritrophic interactions remain unknown, but an increasing effort is being made in this field of research. Understanding more of these complex interactions would not only allow a better understanding of the rhizosphere but could also offer ecologically sound alternatives in the pest management of agricultural systems.Source: Insects. - ISSN 2075-4450 (Vol. 14, no. 6, art. 559, 2023, 18 str.)Type of material - e-article ; adult, seriousPublish date - 2023Language - englishCOBISS.SI-ID - 156166915
Author
Laznik, Žiga, 1983- |
Križman, Mitja |
Zekič, Jure |
Roškarič, Mihaela |
Trdan, Stanislav |
Urbanek Krajnc, Andreja
Topics
lettuce |
wireworms |
ascorbate–glutathione system |
root volatile organic compounds |
entomopathogenic nematodes |
slug parasitic nematodes |
solata |
strune |
škodljivci rastlin |
hlapne organske spojine |
entomopatogene ogorčice |
parazitske ogorčice
Author | Laznik, Žiga, 1983- ... |
Title | The role of ascorbate–glutathione system and volatiles emitted by insect-damaged lettuce roots as navigation signals for insect and slug parasitic nematodes [Elektronski vir] |
Publication date | 2023-06-15 |
COBISS.SI-ID | 156166915 |
Publication version in repository | Publisher's version |
Publication licence | Creative Commons Attribution 4.0 International |
Embargo | Immediate publication for public |
Project(s) from which the publication was funded
Title | Acronym | Project ID | Funder |
---|---|---|---|
Pomen hlapnih izločkov korenin gojenih rastlin pri posredni obrambi pred talnimi škodljivimi žuželkami | J4-3090-2021 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Kmetijstvo naslednje generacije | P4-0431-2022 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Funkcionalna živila in prehranska dopolnila | P1-0005-2020 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Raziskave za zagotavljanje varne hrane in zdravja | P1-0164-2019 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
|
Expert Tasks from the Field of Plant Protection | - |
Ministrstvo za kmetijstvo, gozdarstvo in prehrano |
Files that belong to the publication
Link |
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https://www.mdpi.com/2075-4450/14/6/559 |
https://repozitorij.uni-lj.si/IzpisGradiva.php?id=147006 |
https://dk.um.si/IzpisGradiva.php?id=87074 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Laznik, Žiga, 1983- | 28497 |
Križman, Mitja | 24445 |
Zekič, Jure | 51953 |
Roškarič, Mihaela | 57055 |
Trdan, Stanislav | 17763 |
Urbanek Krajnc, Andreja | 28251 |
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