Comparing the attraction of two parasitoids to herbivore-induced volatiles of maize and its wild ancestors, the teosintes

Lange, Elvira S. de; Farnier, Kevin; Gaudillat, Benjamin; Turlings, Ted C. J.

doi:10.1007/s00049-015-0205-6

Cited by 38 publications

(28 citation statements)

References 75 publications

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“…For example, de Lange et al . () found specificity in the effect of domestication on parasitoid attraction because one species of parasitoid wasp ( C. marginiventris ) but not another ( C. sonorensis ) distinguished among damaged plants of maize and its wild relative, teosinte, in a Y‐tube olfactometer. To fully understand the differences in attraction between domesticated tomato and its wild relatives, we would need to examine parasitoid and predator attraction after induction by different herbivores, including generalists and other specialists.…”

Section: Discussionmentioning

confidence: 99%

Domestication of tomato has reduced the attraction of herbivore natural enemies to pest‐damaged plants

Garvey

Kaplan

et al. 2017

Agri and Forest Entomology

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1 Plant domestication can alter species interactions and influence novel associations among crops and insects. We performed a series of preference and performance experiments to test predator and herbivore attraction to domesticated and wild plants and to evaluate the efficacy of herbivore-induced plant volatiles (HIPVs) across a domestication gradient in tomato, including wild relatives, landraces and domesticated commercial cultivars. 2 We employed a tri-trophic system consisting of the specialist lepidopteran herbivore Manduca sexta and two of its natural enemies: an egg predator, the stilt bug Jalysus wickhami, and a larval parasitoid, the wasp Cotesia congregata. 3 In olfactometer trials, natural enemies consistently preferred HIPVs of wild tomatoes over domesticated cultivars, with landraces in between. Plant-domestication effects were also apparent in terms of decision speed: predators were slower to orient towards damaged crops than to damaged wild relatives. 4 By contrast, M. sexta moths were more likely to oviposit on domesticated than on wild or landrace tomatoes, indicating that insect responses to plant odours vary with trophic level. Field trials confirmed olfactory preference tests: caterpillars recovered from wild tomato relatives were more likely to be parasitized than those recovered from landraces or domesticated tomatoes. 5 The results of the present study suggest that tomato domestication has reduced the efficacy of HIPVs in attracting predators compared with wild relatives and also that this decreased attraction leads to lower attack rates by enemies in the field. This outcome has implications for understanding the specificity of tri-trophic plant defences and the compatibility of natural enemies for biocontrol in agro-ecosystems.

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Section: Discussionmentioning

confidence: 99%

Domestication of tomato has reduced the attraction of herbivore natural enemies to pest‐damaged plants

Garvey

Kaplan

et al. 2017

Agri and Forest Entomology

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“…Diff erences in parasitoid attraction to diff erent maize genotypes have also been observed for larval parasitoids. The GLV ( E)-2-hexenal was negatively correlated with Campoletis sonorensis (Cameron, 1886) (Hymenoptera: Ichneumonidae) parasitism, whereas methyl salicylate was positively correlated with Cotesia marginiventris (Cresson, 1865) (Hymenoptera: Braconidae) parasitism (Degen et al 2012;de Lange et al 2016). Therefore, the quality and the quantity of the volatiles emitted by plants can be used as information by egg parasitoids as a means by which to locate their hosts (Heil 2004;Hilker and Meiners 2006;Schröder and Hilker 2008;Michereff et al 2013).…”

Section: Discussionmentioning

confidence: 99%

Variability in herbivore-induced defence signalling across different maize genotypes impacts significantly on natural enemy foraging behaviour

et al. 2018

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“…The wild ancestors of maize are teosintes, a small species complex of Zea grasses found in Mexico, Guatemala and Nicaragua (Matsuoka et al, 2002). Although there are substantial differences, various species and sub-species of teosinte release a very similar bouquet of volatiles as has been reported for maize (Gouinguené et al, 2001;De Lange et al, 2016). Artificial selection of crop plants, including maize (Rosenthal and Dirzo, 1997;Dávila-Flores et al, 2013;De Lange et al, 2016;Gaillard et al, 2018), for increased yield and improved quality can negatively influence other important traits, such as resistance to herbivores (Chen et al, 2015;Whitehead et al, 2017).…”

Section: Introductionmentioning

confidence: 97%

Parasitic Wasps Can Reduce Mortality of Teosinte Plants Infested With Fall Armyworm: Support for a Defensive Function of Herbivore-Induced Plant Volatiles

et al. 2018

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Many parasitic wasps use volatiles emitted by plants under herbivore attack to find their hosts. It has therefore been proposed that these inducible plant volatiles serve an indirect defense function by recruiting parasitoids and other natural enemies. This suggested function remains controversial because there is little evidence that, in terms of fitness, plants benefit from the actions of natural enemies, particularly parasitoids, which do not immediately kill their hosts. We aimed to address this controversy in a semi-natural field experiment in Mexico, where we used large screen tents to evaluate how parasitoids can affect plant performance. The tritrophic study system comprised teosinte (Zea spp.), the ancestor of maize, Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) and Campoletis sonorensis Cameron (Hymenoptera: Ichneumonidae), which have a long evolutionary history together. In tents without parasitoids, S. frugiperda larvae inflicted severe damage to the plants, whereas in the presence of parasitoid wasps, leaf damage was reduced by as much as 80%. Parasitoids also mitigated herbivore-mediated mortality among young teosinte plants. Although these findings will not resolve the long-standing debate on the adaptive function of herbivore-induced plant volatiles (HIPVs), they do present strong support for the hypothesis that plants can benefit from the presence of parasitoid natural enemies of their herbivores.

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Comparing the attraction of two parasitoids to herbivore-induced volatiles of maize and its wild ancestors, the teosintes

Cited by 38 publications

References 75 publications

Domestication of tomato has reduced the attraction of herbivore natural enemies to pest‐damaged plants

Domestication of tomato has reduced the attraction of herbivore natural enemies to pest‐damaged plants

Variability in herbivore-induced defence signalling across different maize genotypes impacts significantly on natural enemy foraging behaviour

Parasitic Wasps Can Reduce Mortality of Teosinte Plants Infested With Fall Armyworm: Support for a Defensive Function of Herbivore-Induced Plant Volatiles

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