Year 2020, Volume 23 , Issue 4, Pages 893 - 897 2020-08-31

The Role of Eicosanoids in Nodulation Reaction Against Entomopathogenic Fungi in Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) Larvae
Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) Larvalarında Entomopatojenik Funguslara Karşı Nodülasyon Reaksiyonunda Eikosanoidlerin Rolü

Hasan TUNAZ [1] , Mehmet Kubilay ER [2] , Ali IŞIKBER [3]


The study carried out the role of eicosanoids on nodulation reactions in Spodoptera littoralis larvae, against two fungal isolates (Beauveria bassiana 6646 and Metarhizium anisopliae 3293). When the larvae were infected with Beauveria bassiana 6646 and Metarhizium anisopliae 3293, the insects showed a nodulation reaction to this infection. Injecting eicosanoid biosynthesis inhibitors just before the S. littoralis larvae were infected with fungal isolates reduced the nodulation response to fungal isolates. Specific applications, including inhibitors of enzymes in eicosanoid biosynthesis; “dexamethasone (a phospholipase A2 inhibitor), indomethacin, naproxen, ibuprofen (cyclooxygenase inhibitors), esculetin (a lipoxygenase inhibitor) and phenidone (both cyclooxygenase / lipoxygenase inhibitor) reduced” formation of nodules in S. littoralis against fungal infection. These findings support the hypothesis that eicosanoids are involved in nodulation reactions against fungal infections in larvae of S. littoralis.
Çalışma, iki mantar fungus (Beauveria bassiana 6646 ve Metarhizium anisopliae 3293) karşı, Spodoptera littoralis larvalarındaki nodülasyon reaksiyonları üzerinde eikosanoidlerin rolünü test etmiştir. Larvalar Beauveria bassiana 6646 ve Metarhizium anisopliae 3293 ile enfekte edildiğinde, böcekler bu enfeksiyona karşı nodülasyon reaksiyonu göstermiştir. S. littoralis larvalarına fungus izolatları ile enfekte edilmeden hemen önce eikosanoid biyosentez inhibitörlerinin enjekte edilmesi, fungus izolatlarına nodülasyon tepkisini azaltmıştır. Deksametazon (bir fosfolipaz A2 inhibitörü), indometasin, naproksen, ibuprofen (siklooksijenaz inhibitörleri), esculetin (bir lipooksijenaz inhibitörü) ve fenidon (her ikisi de siklooksijenaz/lipooksijenaz inhibitörü) dahil olmak üzere eikosanoid biyosentezindeki enzim inhibitörleri ile yapılan spesifik uygulamalar. S. littoralis'te fungal enfeksiyonuna karşı nodül oluşumunun azalmasına sebep olmuştur. Bu bulgular, eikosanoidlerin S. littoralis larvalarındaki fungal enfeksiyonlarına karşı nodülasyon reaksiyonlarına dahil olduğu hipotezini desteklemektedir.
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Primary Language en
Subjects Agriculture
Journal Section RESEARCH ARTICLE
Authors

Orcid: 0000-0003-4942-6056
Author: Hasan TUNAZ (Primary Author)
Institution: KSU, Ziraat Fakültesi, Bitki Koruma Bölümü
Country: Turkey


Orcid: 0000-0003-1568-8656
Author: Mehmet Kubilay ER
Institution: KSU, Ziraat Fakültesi, Bitki Koruma Bölümü
Country: Turkey


Orcid: 0000-0003-1213-3532
Author: Ali IŞIKBER
Institution: KSU, Ziraat Fakültesi, Bitki Koruma Bölümü
Country: Turkey


Supporting Institution TÜBİTAK
Project Number TÜBİTAK 110O159
Thanks This study was supported by TÜBİTAK as project number 110O159.
Dates

Application Date : January 28, 2020
Acceptance Date : April 30, 2020
Publication Date : August 31, 2020

APA Tunaz, H , Er, M , Işıkber, A . (2020). The Role of Eicosanoids in Nodulation Reaction Against Entomopathogenic Fungi in Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) Larvae . Kahramanmaraş Sütçü İmam Üniversitesi Tarım ve Doğa Dergisi , 23 (4) , 893-897 . DOI: 10.18016/ksutarimdoga.vi.681089