Plant volatiles guide the new pest Dichelops furcatus to feed on corn seedlings
BACKGROUND: Recently, in temperate and neotropical regions of South America the generalist stink bug Dichelops furcatus (Hemiptera: Pentatomidae) became a new pest of corn (Zea mays) seedlings. Implementation of no-tillage cultivation system left organic matter covering the soil, which shelters adul...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2021jacobi.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
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| 005 | 20240320142243.0 | ||
| 008 | 220519t2021 xxud||||o|||| 00| 0 eng d | ||
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| 022 | |a 1526-4998 | ||
| 024 | |a 10.1002/ps.6273 | ||
| 040 | |a AR-BaUFA |c AR-BaUFA | ||
| 245 | 1 | |a Plant volatiles guide the new pest Dichelops furcatus to feed on corn seedlings | |
| 520 | |a BACKGROUND: Recently, in temperate and neotropical regions of South America the generalist stink bug Dichelops furcatus (Hemiptera: Pentatomidae) became a new pest of corn (Zea mays) seedlings. Implementation of no-tillage cultivation system left organic matter covering the soil, which shelters adults of stink bugs during winter. In spring, corn is sowed under soybean stubble and D. furcatus adults start to feed on seedlings. To determine corn-derived volatile organic compounds (VOCs) that attract this stink bug species, we evaluated stink bug preferences from two corn hybrids with contrast germplasm backgrounds, a temperate and a tropical hybrid. RESULTS: Stink bugs preferred to feed on temperate seedlings rather than on the tropical ones. GC–MS and PCA analysis of VOCs suggested that hybrids emitted contrasting blends. Linalool represented 68% of total VOCs emitted from temperate corn, while in the tropical hybrid this compound represented 48%. Olfactometer experiments demonstrated that linalool was attractive to stink bugs. However, 2 h of D. furcatus attack induced emission of 14 additional VOCs in temperate seedlings, and olfactometer bioassay and blend of VOCs emission suggested that perceived volatiles by stink bugs induced feeding avoidance. The increment of VOCs emission was associated with the induction of JA, JA-Ile, ABA, and IAA, and decreasing of SA concentrations. CONCLUSION: This is the first time showing a complete profile of defensive phytohormones induced by stink bugs feeding on corn, and further demonstrating that a blend of corn seedling-associated VOCs, mainly composed by linalool, modulates D. furcatus adults' behavior and feeding preferences. | ||
| 650 | |2 Agrovoc |9 26 | ||
| 653 | |a STINK BUGS | ||
| 653 | |a DICHELOP FURCATUS | ||
| 653 | |a CORN SEEDLINGS | ||
| 653 | |a ORGANIC VOLATILE COMPOUNDS | ||
| 653 | |a PHYTOHORMONE REGULATION | ||
| 653 | |a LINALOOL | ||
| 700 | 1 | |9 73086 |a Jacobi, Vanesa Gisela |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Genética. Buenos Aires, Argentina. | |
| 700 | 1 | |a Fernández, Patricia Carina |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Química de Biomoléculas. Buenos Aires, Argentina. |u Universidad de Buenos Aires. Centro de Investigación de Hidratos de Carbono (CIHIDECAR). Buenos Aires, Argentina. |u CONICET - Universidad de Buenos Aires. Centro de Investigación de Hidratos de Carbono (CIHIDECAR). Buenos Aires, Argentina. |u CONICET. Buenos Aires, Argentina. |9 67437 | |
| 700 | 1 | |a Barriga, Lucía Guadalupe |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Química de Biomoléculas. Buenos Aires, Argentina. |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. |9 33219 | |
| 700 | 1 | |a Almeida Trapp, Marilia |u King Abdullah University of Science and Technology. Thuwal, Saudi Arabia. |9 73630 | |
| 700 | 1 | |a Mithöfer, Axel |u Max Planck Institute for Chemical Ecology. Research Group Plant Defense Physiology. Jena, Germany. |9 67685 | |
| 700 | 1 | |9 7916 |a Zavala, Jorge Alberto |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones en Biociencias Agrícolas y Ambientales (INBA). Buenos Aires, Argentina. |u CONICET - Universidad de Buenos Aires. Buenos Aires, Argentina. |u Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Biología Aplicada y Alimentos. Cátedra de Bioquímica. Buenos Aires, Argentina. | |
| 773 | |t Pest Management Science |g Vol.77, no.5 (2021), p.2444-2453, grafs. | ||
| 856 | |f 2021jacobi |i en reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2021jacobi.pdf |x ARTI202206 | ||
| 856 | |u https://www.wiley.com/ |z LINK AL EDITOR | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||