Plant Effects on Parasitoid Foraging: Differences between Two Tritrophic Systems

Takabayashi, Junji; Sato, Yoshibumi; Horikoshi, Mayumi; Yamaoka, Ryohei; Yano, Shuichi; Ohsaki, Naota; Dicke, Marcel

doi:10.1006/bcon.1997.0583

Cited by 60 publications

(44 citation statements)

References 28 publications

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“…These observations suggest that both C. plutellae and C. glomerata initially locate host-infested plants by reacting to volatiles emitted from the plants (Takabayashi et al 1998;Shiojiri et al 2000a). After landing, they use contact chemicals from the host-infested edge as searching cues (Sato 1979;Horikoshi et al 1997;Shiojiri et al 2000b).…”

Section: Host-searching Behavior Of Cotesia Plutellae and Cotesia Glomentioning

confidence: 92%

“…This wasp shows similar host-searching behavior to C. plutellae. The female C. glomerata lands on a leaf of either Rorippa indica (wild crucifer) or other crucifers infested by P. rapae larvae (Sato 1988;Takabayashi et al 1998). It then walks around slowly, with its antennal tips touching the leaf surface.…”

Section: Host-searching Behavior Of Cotesia Plutellae and Cotesia Glomentioning

confidence: 99%

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Infochemically mediated tritrophic interaction webs on cabbage plants

et al. 2001

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In response to damage by herbivores, plants are known to emit infochemicals that enhance the effectiveness of insect parasitoids. Studies on plant-parasitoid interactions mediated by such infochemicals have focused on the tritrophic systems in which plants are infested by a single herbivore species. In natural ecosystems, however, plants are often simultaneously infested by several herbivorous species. The present study focuses on two herbivorous species that simultaneously attack crucifer plants and their respective parasitic wasps. We first show the specific responses of the two specialist parasitic wasps [Cotesia plutellae and C. glomerata (Hymenoptera: Braconidae)] to infochemicals originating from cabbage plants (Brassica oleracea cv. Sikidori) infested by each of their respective host larvae [Plutella xylostella (Lepidoptera: Yponomeutidae) and Pieris rapae (Lepidoptera: Pieridae)]. We then coupled the two tritrophic systems on the same cabbage plants. These experiments demonstrated the presence of indirect interactions between the two species of herbivores. Overall, the results indicate the presence of infochemically mediated tritrophic interaction webs on a single plant.

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Section: Host-searching Behavior Of Cotesia Plutellae and Cotesia Glomentioning

confidence: 92%

Section: Host-searching Behavior Of Cotesia Plutellae and Cotesia Glomentioning

confidence: 99%

Infochemically mediated tritrophic interaction webs on cabbage plants

et al. 2001

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“…Physiological constraints usually limit the number of different host species that can be parasitised by a larval endoparasitoid, but herbivorous hosts specialised on brassicaceous plants can feed on a range of different plant species. Surprisingly, few studies have compared the composition of HIPV and their attractiveness to parasitoids in different brassicaceous plant species (Takabayashi et al 1998;Bukovinszky et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Plant-mediated effects in the Brassicaceae on the performance and behaviour of parasitoids

2008

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Direct and indirect plant defences are well studied, particularly in the Brassicaceae. Glucosinolates (GS) are secondary plant compounds characteristic in this plant family. They play an important role in defence against herbivores and pathogens. Insect herbivores that are specialists on brassicaceous plant species have evolved adaptations to excrete or detoxify GS. Other insect herbivores may even sequester GS and employ them as defence against their own antagonists, such as predators. Moreover, high levels of GS in the food plants of non-sequestering herbivores can negatively affect the growth and survival of their parasitoids. In addition to allelochemicals, plants produce volatile chemicals when damaged by herbivores. These herbivore induced plant volatiles (HIPV) have been demonstrated to play an important role in foraging behaviour of insect parasitoids. In addition, biosynthetic pathways involved in the production of HIPV are being unraveled using the model plant Arabidopsis thialiana. However, the majority of studies investigating the attractiveness of HIPV to parasitoids are based on experiments mainly using crop plant species in which defence traits may have changed through artificial selection. Field studies with both cultivated and wild crucifers, the latter in which defence traits are intact, are necessary to reveal the relative importance of direct and indirect plant defence strategies on parasitoid and plant fitness. Future research should also consider the potential conflict between direct and indirect plant defences when studying the evolution of plant defences against insect herbivory.

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“…systems that include the host, parasites and predators of parasites) [Takabayashi et al, 1998]. It is well known that diffusible infochemicals play an important role in plant tritrophic systems [Hilker and Meiners, 2006].…”

Section: Predator-of-predator Attractantsmentioning

confidence: 99%

Allelochemical Communication in Vertebrates: Kairomones, Allomones and Synomones

Sbarbati

Osculati²

2006

Cells Tissues Organs

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Communication between different species by means of chemicals (allelomones) is widespread among prokaryotes, plants and invertebrates. This study reviews data suggesting that allelochemically mediated communication also exists among vertebrates. The work aims to provide a concise, interdisciplinary review of communication mediated by infochemicals, with a focus on interspecies and interkingdom signaling. A definition of infochemicals is given, with a brief review of the general principles of chemical communication in different kingdoms in nature. Findings are reported which suggest that interspecies chemical signaling is important for vertebrates also. It is proposed that the general laws of chemical ecology are valid for mammals too, and that the terms indicating the different types of allelomones (i.e. kairomone, allomone and synomone) might also be used in medicine. In particular, the microchemical environment at the airway and digestive interfaces are discussed from an infochemical point of view.

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Plant Effects on Parasitoid Foraging: Differences between Two Tritrophic Systems

Cited by 60 publications

References 28 publications

Infochemically mediated tritrophic interaction webs on cabbage plants

Infochemically mediated tritrophic interaction webs on cabbage plants

Plant-mediated effects in the Brassicaceae on the performance and behaviour of parasitoids

Allelochemical Communication in Vertebrates: Kairomones, Allomones and Synomones

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