Host selection, oviposition behaviour and leaf traits in a specialist willow sawfly on species of Salix (Salicaceae)
Plant genotype influences plant–herbivore interactions by affecting insect attraction, acceptance and development. Here we linked oviposition behaviour of the specialist willow sawfly Nematus oligospilus Förster (Hymenoptera: Tenthredinidae) with leaf traits on different Salix L. (Salicaceae) genoty...
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| Format: | Artículo |
| Language: | Inglés |
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Wiley
2019
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| Online Access: | https://onlinelibrary.wiley.com/doi/abs/10.1111/een.12053 http://hdl.handle.net/20.500.12123/4773 https://doi.org/10.1111/een.12053 |
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| author | Braccini, Celina Laura Vega, Andrea Susana Chludil, Hugo Daniel Leicach, Silvia Rosa Fernandez, Patricia |
| author_browse | Braccini, Celina Laura Chludil, Hugo Daniel Fernandez, Patricia Leicach, Silvia Rosa Vega, Andrea Susana |
| author_facet | Braccini, Celina Laura Vega, Andrea Susana Chludil, Hugo Daniel Leicach, Silvia Rosa Fernandez, Patricia |
| author_sort | Braccini, Celina Laura |
| collection | INTA Digital |
| description | Plant genotype influences plant–herbivore interactions by affecting insect attraction, acceptance and development. Here we linked oviposition behaviour of the specialist willow sawfly Nematus oligospilus Förster (Hymenoptera: Tenthredinidae) with leaf traits on different Salix L. (Salicaceae) genotypes. This was done as a first step to find oviposition cues that guide females to their host plants.
By means of choice and no‐choice bioassays we analysed host selection according to willow genotype and leaf surface. We also studied larval performance, adult fecundity and effect of experience on host selection. Nematus oligospilus prefers to oviposit on S. nigra. The least preferred genotype, S. viminalis, showed better larval performance and highest adult fecundity. Host preference was not modified by larval feeding experience.
By means of light and scanning electron microscopy we described ovipositor and leaf micromorphology. The egg is laid inside the epidermis or between the epidermis and adjacent chlorenchyma, showing a tight association with the leaf. Leaf toughness was lowest for S. nigra and higher for S. viminalis and S. babylonica. Total nitrogen and protein content were higher on S. viminalis and S. babylonica. Total phenolics and phenolic glycosides were the highest and more diverse on S. nigra. Salicin content levels correlate with oviposition preference, suggesting the role of salicylates as oviposition stimulants.
Results suggest that oviposition preference on S. nigra may be related to lower leaf toughness and ease of injection of female saw‐like ovipositor, and motivated by the presence of phenolic glycosides. Nitrogen levels may explain better larval performance and adult fecundity in S. viminalis. Thus, a balance among the different leaf traits determines the outcomes observed in this study. |
| format | Artículo |
| id | INTA4773 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA47732019-03-28T15:08:52Z Host selection, oviposition behaviour and leaf traits in a specialist willow sawfly on species of Salix (Salicaceae) Braccini, Celina Laura Vega, Andrea Susana Chludil, Hugo Daniel Leicach, Silvia Rosa Fernandez, Patricia Nematus Insecta Plagas de Plantas Salix Oviposición Comportamiento Relaciones Huésped Parásito Huéspedes Pests of Plants Oviposition Behaviour Host Parasite Relations Hosts Nematus oligospilus Sauce (salix) Plant genotype influences plant–herbivore interactions by affecting insect attraction, acceptance and development. Here we linked oviposition behaviour of the specialist willow sawfly Nematus oligospilus Förster (Hymenoptera: Tenthredinidae) with leaf traits on different Salix L. (Salicaceae) genotypes. This was done as a first step to find oviposition cues that guide females to their host plants. By means of choice and no‐choice bioassays we analysed host selection according to willow genotype and leaf surface. We also studied larval performance, adult fecundity and effect of experience on host selection. Nematus oligospilus prefers to oviposit on S. nigra. The least preferred genotype, S. viminalis, showed better larval performance and highest adult fecundity. Host preference was not modified by larval feeding experience. By means of light and scanning electron microscopy we described ovipositor and leaf micromorphology. The egg is laid inside the epidermis or between the epidermis and adjacent chlorenchyma, showing a tight association with the leaf. Leaf toughness was lowest for S. nigra and higher for S. viminalis and S. babylonica. Total nitrogen and protein content were higher on S. viminalis and S. babylonica. Total phenolics and phenolic glycosides were the highest and more diverse on S. nigra. Salicin content levels correlate with oviposition preference, suggesting the role of salicylates as oviposition stimulants. Results suggest that oviposition preference on S. nigra may be related to lower leaf toughness and ease of injection of female saw‐like ovipositor, and motivated by the presence of phenolic glycosides. Nitrogen levels may explain better larval performance and adult fecundity in S. viminalis. Thus, a balance among the different leaf traits determines the outcomes observed in this study. Instituto de Recursos Biológicos Fil: Braccini, Celina Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina Fil: Vega, Andrea Susana. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Botánica General; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Chludil, Hugo Daniel. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Química de Biomoléculas; Argentina Fil: Leicach, Silvia Rosa. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Química de Biomoléculas; Argentina Fil: Fernandez, Patricia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Delta del Paraná; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Bioquímica; Argentina 2019-03-28T15:06:46Z 2019-03-28T15:06:46Z 2013-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://onlinelibrary.wiley.com/doi/abs/10.1111/een.12053 http://hdl.handle.net/20.500.12123/4773 0307-6946 1365-2311 https://doi.org/10.1111/een.12053 eng info:eu-repo/semantics/restrictedAccess application/pdf Wiley Ecological Entomology 38 (6) : 617-626 (December 2013) |
| spellingShingle | Nematus Insecta Plagas de Plantas Salix Oviposición Comportamiento Relaciones Huésped Parásito Huéspedes Pests of Plants Oviposition Behaviour Host Parasite Relations Hosts Nematus oligospilus Sauce (salix) Braccini, Celina Laura Vega, Andrea Susana Chludil, Hugo Daniel Leicach, Silvia Rosa Fernandez, Patricia Host selection, oviposition behaviour and leaf traits in a specialist willow sawfly on species of Salix (Salicaceae) |
| title | Host selection, oviposition behaviour and leaf traits in a specialist willow sawfly on species of Salix (Salicaceae) |
| title_full | Host selection, oviposition behaviour and leaf traits in a specialist willow sawfly on species of Salix (Salicaceae) |
| title_fullStr | Host selection, oviposition behaviour and leaf traits in a specialist willow sawfly on species of Salix (Salicaceae) |
| title_full_unstemmed | Host selection, oviposition behaviour and leaf traits in a specialist willow sawfly on species of Salix (Salicaceae) |
| title_short | Host selection, oviposition behaviour and leaf traits in a specialist willow sawfly on species of Salix (Salicaceae) |
| title_sort | host selection oviposition behaviour and leaf traits in a specialist willow sawfly on species of salix salicaceae |
| topic | Nematus Insecta Plagas de Plantas Salix Oviposición Comportamiento Relaciones Huésped Parásito Huéspedes Pests of Plants Oviposition Behaviour Host Parasite Relations Hosts Nematus oligospilus Sauce (salix) |
| url | https://onlinelibrary.wiley.com/doi/abs/10.1111/een.12053 http://hdl.handle.net/20.500.12123/4773 https://doi.org/10.1111/een.12053 |
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