Back
Nematode Root Herbivory in Tomato Increases Leaf Defenses and Reduces Leaf Miner Oviposition and Performance.
Journal article

Nematode Root Herbivory in Tomato Increases Leaf Defenses and Reduces Leaf Miner Oviposition and Performance.

  • Arce CC Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil. arceccm@gmail.com.
  • Machado RA Institute of Plant Sciences, University of Bern, Bern, Switzerland.
  • Ribas NS Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil.
  • Cristaldo PF Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil.
  • Ataíde LM Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil.
  • Pallini  Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil.
  • Carmo FM Department of Biology, Universidade Federal de Viçosa, Viçosa, Brazil.
  • Freitas LG Department of Phytopathology, Universidade Federal de Viçosa, Viçosa, Brazil.
  • Lima E Department of Entomology, Universidade Federal de Viçosa, Viçosa, Brazil. eraldo.lima@gmail.com.
Show more…
  • 2017-01-14
Published in:
  • Journal of chemical ecology. - 2017
Meloidogyne incognita
Solanum lycopersicum
Systemic-induced plant responses
Tuta absoluta
Animals
Feeding Behavior
Herbivory
Host-Parasite Interactions
Moths
Oviposition
Photosynthesis
Plant Leaves
Plant Roots
Solanum
Trypsin Inhibitors
Tylenchoidea
Volatile Organic Compounds
English The outcome of plant-mediated interactions among herbivores from several feeding guilds has been studied intensively. However, our understanding on the effects of nematode root herbivory on leaf miner oviposition behavior and performance remain limited. In this study, we evaluated whether Meloidogyne incognita root herbivory affects Tuta absoluta oviposition preference on Solanum lycopersicum plants and the development of the resulting offspring. To investigate the M. incognita-herbivory induced plant systemic responses that might explain the observed biological effects, we measured photosynthetic rates, leaf trypsin protease inhibitor activities, and analyzed the profile of volatiles emitted by the leaves of root-infested and non-infested plants. We found that T. absoluta females avoided laying eggs on the leaves of root-infested plants, and that root infestation negatively affected the pupation process of T. absoluta. These effects were accompanied by a strong suppression of leaf volatile emissions, a decrease in photosynthetic rates, and an increase in the activity of leaf trypsin protease inhibitors. Our study reveals that root attack by nematodes can shape leaf physiology, and thereby increases plant resistance.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://sonar.ch/global/documents/201425
Statistics
Document views: 43 File downloads: