Volatile Organic Compounds from Entomopathogenic and Nematophagous Fungi, Repel Banana Black Weevil (Cosmopolites sordidus)
| Autor: | Javier Lopez-Cepero, Ugo Picciotti, Federico Lopez-Moya, Ana Lozano-Soria, Luis Vicente Lopez-Llorca, Francesco Porcelli |
|---|---|
| Přispěvatelé: | Universidad de Alicante. Departamento de Ciencias del Mar y Biología Aplicada, Fitopatología |
| Jazyk: | angličtina |
| Předmět: |
0106 biological sciences
0301 basic medicine Biological pest control Pheromone biological control 01 natural sciences Nematophagous fungus invasive species Camphor chemistry.chemical_compound Curculionidae pheromone Bioassay olfactory response lcsh:Science 2. Zero hunger 0303 health sciences biology Weevil Banana plantation Horticulture Biological control 030106 microbiology Cosmopolites sordidus Beauveria bassiana Corm Musa accuminata 03 medical and health sciences Pest control Pochonia Semiochemicals 030304 developmental biology Invasive species semiochemicals business.industry Botánica VOCs biology.organism_classification 010602 entomology 030104 developmental biology chemistry Insect Science Olfactory response lcsh:Q Gas chromatography business pest control |
| Zdroj: | Insects Volume 11 Issue 8 Insects, Vol 11, Iss 509, p 509 (2020) RUA. Repositorio Institucional de la Universidad de Alicante Universidad de Alicante (UA) |
| ISSN: | 2075-4450 |
| DOI: | 10.3390/insects11080509 |
| Popis: | Fungal Volatile Organic Compounds (VOCs) repel banana black weevil (BW), Cosmopolites sordidus (Germar, 1824), the key-pest of banana [Musa sp. (Linnaeus, 1753)]. The entomopathogens Beauveria bassiana (Bb1TS11) and Metarhizium robertsii (Mr4TS04) were isolated from banana plantation soils using an insect bait. Bb1TS11 and Mr4TS04 were pathogenic to BW adults. Bb1TS11, Bb203 (from infected palm weevils), Mr4TS04 and the nematophagous fungus Pochonia clamydosporia (Pc123), were tested for VOCs production. VOCs were identified by Gas Chromatography/Mass Spectrometry&ndash Solid-Phase Micro Extraction (GC/MS-SPME). GC/MS-SPME identified a total of 97 VOCs in all strains tested. Seven VOCs (styrene, benzothiazole, camphor, borneol, 1,3-dimethoxy-benzene, 1-octen-3-ol and 3-cyclohepten-1-one) were selected for their abundance or previous record as insect repellents. BW-starved adults in the dark showed the highest mobility to banana corm in olfactometry bioassays. 3-cyclohepten-1-one (C7), produced by all fungal strains, is the best BW repellent (p < 0.05), followed by 1,3-dimethoxy-benzene (C5). The rest of the VOCs have a milder repellency to BW. Styrene (C1) and benzothiazole (C2) (known to repel palm weevil) block the attraction of banana corm and BW pheromone to BW adults in bioassays. Therefore, VOCs from biocontrol fungi can be used in future studies for the biomanagement of BW in the field. |
| Databáze: | OpenAIRE |
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