Trading direct for indirect defense? Phytochrome B inactivation in tomato attenuates direct anti-herbivore defenses whilst enhancing volatile-mediated attraction of predators
Under conditions of competition for light, which lead to the inactivation of the photoreceptor phytochrome B (phyB), the growth of shade-intolerant plants is promoted and the accumulation of direct anti-herbivore defenses is down-regulated. Little is known about the effects of phyB on emissions of v...
| Otros Autores: | , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2016cortes.pdf LINK AL EDITOR |
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| 008 | 180731t2016 xxu|||||o|||| 00| 0 eng d | ||
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| 022 | |a 0028-646X | ||
| 024 | |a 10.1111/nph.14210 | ||
| 040 | |a AR-BaUFA | ||
| 245 | 1 | |a Trading direct for indirect defense? Phytochrome B inactivation in tomato attenuates direct anti-herbivore defenses whilst enhancing volatile-mediated attraction of predators | |
| 520 | |a Under conditions of competition for light, which lead to the inactivation of the photoreceptor phytochrome B (phyB), the growth of shade-intolerant plants is promoted and the accumulation of direct anti-herbivore defenses is down-regulated. Little is known about the effects of phyB on emissions of volatile organic compounds (VOCs), which play a major role as informational cues in indirect defense. We investigated the effects of phyB on direct and indirect defenses in tomato (Solanum lycopersicum) using two complementary approaches to inactivate phyB: illumination with a low red to far-red ratio, simulating competition, and mutation of the two PHYB genes present in the tomato genome. Inactivation of phyB resulted in low levels of constitutive defenses and down-regulation of direct defenses induced by methyl jasmonate (MeJA). Interestingly, phyB inactivation also had large effects on the blends of VOCs induced by MeJA. Moreover, in two-choice bioassays using MeJA-induced plants, the predatory mirid bug Macrolophus pygmaeus preferred VOCs from plants in which phyB was inactivated over VOCs from control plants. These results suggest that, in addition to repressing direct defense, phyB inactivation has consequences for VOC-mediated tritrophic interactions in canopies, presumably attracting predators to less defended plants, where they are likely to find more abundant prey. | ||
| 653 | |a DEFENSE | ||
| 653 | |a INDIRECT DEFENSE | ||
| 653 | |a JASMONATE | ||
| 653 | |a PHYTOCHROME | ||
| 653 | |a R : FR RATIO | ||
| 653 | |a TOMATO (SOLANUM LYCOPERSICUM) | ||
| 653 | |a TRITROPHIC INTERACTION | ||
| 653 | |a VOLATILE | ||
| 700 | 1 | |9 67600 |a Cortés, Leandro Emanuel |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. |u Universidad Nacional de Cuyo. Instituto de Biología Agrícola de Mendoza. Luján de Cuyo, Mendoza, Argentina. |u CONICET - Universidad Nacional de Cuyo .Instituto de Biología Agrícola de Mendoza. Luján de Cuyo, Mendoza, Argentina. | |
| 700 | 1 | |a Weldegergis, Berhane T. |u Wageningen University. Laboratory of Entomology. AA Wageningen, the Netherlands. |9 67601 | |
| 700 | 1 | |9 67603 |a Boccalandro, Hernán Esteban |u Universidad Nacional de Cuyo .Instituto de Biología Agrícola de Mendoza. Luján de Cuyo, Mendoza, Argentina. |u CONICET - Universidad Nacional de Cuyo .Instituto de Biología Agrícola de Mendoza. Luján de Cuyo, Mendoza, Argentina. | |
| 700 | 1 | |9 39714 |a Dicke, Marcel |u Wageningen University. Laboratory of Entomology. AA Wageningen, the Netherlands. | |
| 700 | 1 | |9 672 |a Ballaré, Carlos Luis |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina. |u Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnologicas (IIB-INTECH). Buenos Aires, Argentina |u CONICET- Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnologicas (IIB-INTECH). Buenos Aires, Argentina | |
| 773 | 0 | |t New phytologist |w SECS001166 |g Vol.212, no.4 (2016), p.1057-1071, il., tbls., grafs. | |
| 856 | |f 2016cortes |i En Reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2016cortes.pdf |x ARTI201808 | ||
| 856 | |z LINK AL EDITOR |u https://www.wiley.com | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||