| Naslov: | The role of ascorbate–glutathione system and volatiles emitted by insect-damaged lettuce roots as navigation signals for insect and slug parasitic nematodes |
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| Avtorji: | ID Laznik, Žiga (Avtor)
ID Križman, Mitja (Avtor)
ID Zekič, Jure (Avtor)
ID Roškarič, Mihaela (Avtor)
ID Trdan, Stanislav (Avtor)
ID Urbanek Krajnc, Andreja (Avtor) |
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| Datoteke: |  Laznik-2023-The_Role_of_Ascorbate-Glutathione.pdf (3,96 MB)
MD5: B7CFC9C066180014A0C869FBFEC95870
 https://doi.org/10.3390/insects14060559
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| Jezik: | Angleški jezik |
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| Vrsta gradiva: | Znanstveno delo |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: | FKBV - Fakulteta za kmetijstvo in biosistemske vede
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| Opis: | 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. |
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| Ključne besede: | lettuce, wireworms, ascorbate–glutathione system, root volatile organic compounds, entomopathogenic nematodes, slug parasitic nematodes |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 21.04.2023 |
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| Datum sprejetja članka: | 14.06.2023 |
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| Datum objave: | 15.06.2023 |
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| Založnik: | MDPI |
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| Leto izida: | 2023 |
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| Št. strani: | Str. 1-18 |
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| Številčenje: | Letn. 14, Št. 6, št. članka 559 |
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| PID: | 20.500.12556/DKUM-87074  |
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| UDK: | 632 |
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| COBISS.SI-ID: | 156166915 |
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| DOI: | 10.3390/insects14060559 |
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| ISSN pri članku: | 2075-4450 |
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| Datum objave v DKUM: | 15.02.2024 |
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| Število ogledov: | 395 |
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| Število prenosov: | 22 |
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| Metapodatki: |    |
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| Področja: | Ostalo
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LAZNIK, Žiga, KRIŽMAN, Mitja, ZEKIČ, Jure, ROŠKARIČ, Mihaela, TRDAN, Stanislav in URBANEK KRAJNC, Andreja, 2023, The role of ascorbate–glutathione system and volatiles emitted by insect-damaged lettuce roots as navigation signals for insect and slug parasitic nematodes. Insects [na spletu]. 2023. Vol. 14, no. Št. 6, članka 559, p. 1–18. [Dostopano 19 april 2025]. DOI 10.3390/insects14060559. Pridobljeno s: https://dk.um.si/IzpisGradiva.php?lang=slv&id=87074
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| | | | Skupna ocena: | (0 glasov) |
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| Vaša ocena: | Ocenjevanje je dovoljeno samo prijavljenim uporabnikom. |
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