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Exploitation of Herbivore-Induced Plant Odors by Host-Seeking Parasitic Wasps
TLDR
Corn seedlings release large amounts of terpenoid volatiles after they have been fed upon by caterpillars, and females of the parasitic wasp Cotesia marginiventris (Cresson) learn to take advantage of those plant-producedvolatiles to locate hosts when exposed to these volatile in association with hosts or host by-products.
An Elicitor of Plant Volatiles from Beet Armyworm Oral Secretion
TLDR
The compound N -(17-hydroxylinolenoyl)-l-glutamine (named here volicitin) was isolated from oral secretions of beet armyworm caterpillars and induced the seedlings to emit volatile compounds that attract parasitic wasps and natural enemies of the herbivores.
Recruitment of entomopathogenic nematodes by insect-damaged maize roots
TLDR
The first identification of an insect-induced belowground plant signal, (E)-β-caryophyllene, which strongly attracts an entomopathogenic nematode, is reported, which should help enhance the efficacy of nematodes as biological control agents against root pests like D. virgifera.
Diurnal cycle of emission of induced volatile terpenoids by herbivore-injured cotton plant.
TLDR
The diurnal pattern of emission of volatile terpenoids was determined by collecting and analyzing the volatile compounds emitted by cotton plants subjected to feeding damage by beet armyworm larvae in situ, and volatile emission was monitored continuously.
How caterpillar-damaged plants protect themselves by attracting parasitic wasps.
TLDR
The studies on the phenomena of herbivore-induced emissions of volatiles in corn and cotton plants and studies conducted by others indicate that the clarity of the volatile signals is high, as they are unique for herbivor damage, produced in relatively large amounts, and easily distinguishable from background odors.
Learning of Host-Finding Cues by Hymenopterous Parasitoids
TLDR
To confront the challenge of finding the often-inconspicuous, well-hidden hosts, parasitoids have developed various sophisticated searching strategies that depend on a vast array of environmental cues.
Priming by airborne signals boosts direct and indirect resistance in maize.
TLDR
This study shows that VOC-induced priming targets a specific subset of JA-inducible genes, and links these responses at the molecular level to enhanced levels of direct and indirect resistance against insect attack.
High Genetic Variability of Herbivore-Induced Volatile Emission within a Broad Range of Maize Inbred Lines1
TLDR
This most comprehensive study to date on intraspecific variation in induced odor emission by maize plants provides a further example of the remarkably high genetic diversity conserved within this important crop plant.
The composition and timing of flower odour emission by wild Petunia axillaris coincide with the antennal perception and nocturnal activity of the pollinator Manduca sexta
TLDR
Results show that timing of odour emissions by P. axillaris is in tune with nocturnal hawk moth activity and that flower-volatile composition is adapted to the antennal perception of these pollinators.
Signal signature of aboveground-induced resistance upon belowground herbivory in maize.
  • M. Erb, V. Flors, J. Ton
  • Environmental Science
    The Plant journal : for cell and molecular…
  • 1 July 2009
TLDR
This study shows that root herbivory by D. v. virgifera specifically alters the aboveground defence status of a maize, and suggests that ABA plays a role in the signalling network mediating this interaction.
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