Potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid, Myzus persicae
BACKGROUND: Foliar senescence is a physiological process involving the degradation of chlorophyll and proteins, with nitrogen compounds, especially amino acids, mobilised to other parts of the plant. This process enriches the phloem, and improves its nutritional quality for phloem sucking insects li...
| Autores principales: | , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Wiley
2025
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/22380 https://scijournals.onlinelibrary.wiley.com/doi/10.1002/ps.8917 https://doi.org/10.1002/ps.8917 |
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| author | Lopez-Gialdi, Agustín I. Nussenbaum, Ana Laura Fernandez, Paula Del Carmen Segura, Diego Fernando Fernandez, Patricia Carina Di Rienzo, Julio Machado Assefh, Cristina Renata Álvarez, Adriana E. |
| author_browse | Di Rienzo, Julio Fernandez, Patricia Carina Fernandez, Paula Del Carmen Lopez-Gialdi, Agustín I. Machado Assefh, Cristina Renata Nussenbaum, Ana Laura Segura, Diego Fernando Álvarez, Adriana E. |
| author_facet | Lopez-Gialdi, Agustín I. Nussenbaum, Ana Laura Fernandez, Paula Del Carmen Segura, Diego Fernando Fernandez, Patricia Carina Di Rienzo, Julio Machado Assefh, Cristina Renata Álvarez, Adriana E. |
| author_sort | Lopez-Gialdi, Agustín I. |
| collection | INTA Digital |
| description | BACKGROUND: Foliar senescence is a physiological process involving the degradation of chlorophyll and proteins, with nitrogen compounds, especially amino acids, mobilised to other parts of the plant. This process enriches the phloem, and improves its nutritional quality for phloem sucking insects like aphids. This study investigated how natural and induced leaf senescence affect the feeding and olfactory behaviour of the green peach aphid (Myzus persicae Sulzer) in potato (Solanum tuberusom L.). Two phenological stages were examined: young plants where senescence was induced in the basal leaves by covering them with a gas-permeable, light-blocking cloth, and mature plants with naturally senescent basal leaves. Chlorophyll and protein levels were quantified to confirm senescence, and volatile organic compounds (VOCs) were identified using gas chromatography–mass spectrometry (GC–MS).
RESULTS: Senescence, both natural or induced, reduced chlorophyll and protein levels. In young plants, the induction of leaf senescence tended to increase aphid feeding and olfactory preference. In contrast, in mature plants, aphids consistently preferred non-senescent apical leaves over senescent basal leaves sin both olfactory and feeding assays. Additionally, non-senescent apical leaves of mature plants released significantly higher levels of β-caryophyllene compared to senescent leaves, likely reflecting an overall increase in volatiles emission.
CONCLUSION: The results suggest that senescence induction, rather than natural senescence, enhances the nutritional quality of the leaves, allowing aphid propagation. Insights into aphid host preference can be used in future control strategies by promoting agricultural practices that minimise senescence induction caused by factors such as shading due to high sowing density, or nutrient imbalance. |
| format | Artículo |
| id | INTA22380 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA223802025-05-22T13:19:07Z Potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid, Myzus persicae Lopez-Gialdi, Agustín I. Nussenbaum, Ana Laura Fernandez, Paula Del Carmen Segura, Diego Fernando Fernandez, Patricia Carina Di Rienzo, Julio Machado Assefh, Cristina Renata Álvarez, Adriana E. Semiochemicals Olfactory Organs Feeding Preferences Aphids Senescence Potatoes Semioquímico Órganos del Olfato Preferencias Alimentarias Áfidos Myzus persicae Avejentamiento Papa Solanum tuberosum BACKGROUND: Foliar senescence is a physiological process involving the degradation of chlorophyll and proteins, with nitrogen compounds, especially amino acids, mobilised to other parts of the plant. This process enriches the phloem, and improves its nutritional quality for phloem sucking insects like aphids. This study investigated how natural and induced leaf senescence affect the feeding and olfactory behaviour of the green peach aphid (Myzus persicae Sulzer) in potato (Solanum tuberusom L.). Two phenological stages were examined: young plants where senescence was induced in the basal leaves by covering them with a gas-permeable, light-blocking cloth, and mature plants with naturally senescent basal leaves. Chlorophyll and protein levels were quantified to confirm senescence, and volatile organic compounds (VOCs) were identified using gas chromatography–mass spectrometry (GC–MS). RESULTS: Senescence, both natural or induced, reduced chlorophyll and protein levels. In young plants, the induction of leaf senescence tended to increase aphid feeding and olfactory preference. In contrast, in mature plants, aphids consistently preferred non-senescent apical leaves over senescent basal leaves sin both olfactory and feeding assays. Additionally, non-senescent apical leaves of mature plants released significantly higher levels of β-caryophyllene compared to senescent leaves, likely reflecting an overall increase in volatiles emission. CONCLUSION: The results suggest that senescence induction, rather than natural senescence, enhances the nutritional quality of the leaves, allowing aphid propagation. Insights into aphid host preference can be used in future control strategies by promoting agricultural practices that minimise senescence induction caused by factors such as shading due to high sowing density, or nutrient imbalance. Instituto de Genética Fil: Lopez-Gialdi, Agustín I. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta; Argentina Fil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Nussenbaum, Ana Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Nussenbaum, Ana Laura. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Nussenbaum, Ana Laura. Universidad del Salvador. Facultad de Ciencias Agrarias y Veterinarias; Argentina Fil: Fernandez, Paula Del Carmen. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Fernandez, Paula Del Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Fernandez, Paula Del Carmen. Universidad Nacional de San Martín. Escuela de Ciencia y Tecnología; Argentina Fil: Segura, Diego Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentina Fil: Segura, Diego Fernando. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Segura, Diego Fernando. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Segura, Diego Fernando. Universidad del Salvador. Facultad de Ciencias Agrarias y Veterinarias; Argentina Fil: Fernandez, Patricia Carina. Universidad de Buenos Aires. Facultad de Agronomía. Cátedra de Biomoléculas; Argentina Fil: Fernandez, Patricia Carina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina Fil: Fernandez, Patricia Carina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Di Rienzo, Julio. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; Argentina Fil: Machado Assefh, Cristina Renata. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta; Argentina Fil: Machado Assefh, Cristina Renata. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina Fil: Álvarez, Adriana E. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Salta; Argentina Fil: Álvarez, Adriana E. Universidad Nacional de Salta. Facultad de Ciencias Naturales; Argentina 2025-05-22T13:09:23Z 2025-05-22T13:09:23Z 2025 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/22380 https://scijournals.onlinelibrary.wiley.com/doi/10.1002/ps.8917 1526-4998 https://doi.org/10.1002/ps.8917 eng info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Wiley Pest Management Science : 1-11 (First published: 19 May 2025) |
| spellingShingle | Semiochemicals Olfactory Organs Feeding Preferences Aphids Senescence Potatoes Semioquímico Órganos del Olfato Preferencias Alimentarias Áfidos Myzus persicae Avejentamiento Papa Solanum tuberosum Lopez-Gialdi, Agustín I. Nussenbaum, Ana Laura Fernandez, Paula Del Carmen Segura, Diego Fernando Fernandez, Patricia Carina Di Rienzo, Julio Machado Assefh, Cristina Renata Álvarez, Adriana E. Potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid, Myzus persicae |
| title | Potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid, Myzus persicae |
| title_full | Potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid, Myzus persicae |
| title_fullStr | Potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid, Myzus persicae |
| title_full_unstemmed | Potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid, Myzus persicae |
| title_short | Potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid, Myzus persicae |
| title_sort | potato leaf senescence affects the olfactory and feeding preferences of the green peach aphid myzus persicae |
| topic | Semiochemicals Olfactory Organs Feeding Preferences Aphids Senescence Potatoes Semioquímico Órganos del Olfato Preferencias Alimentarias Áfidos Myzus persicae Avejentamiento Papa Solanum tuberosum |
| url | http://hdl.handle.net/20.500.12123/22380 https://scijournals.onlinelibrary.wiley.com/doi/10.1002/ps.8917 https://doi.org/10.1002/ps.8917 |
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