Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
Record number 533710
Title Tomato-mediated interactions between root herbivores and aphids: insights into plant defence signalling
Author(s) Coppola, V.; Soler Gamborena, R.; Rao, R.; Corrado, G.
Source Entomologia Experimentalis et Applicata 163 (2017)2. - ISSN 0013-8703 - p. 170 - 176.
Department(s) Laboratory of Entomology
Publication type Refereed Article in a scientific journal
Publication year 2017
Keyword(s) 017-4015
Abstract Reactions of plants to insect pests include the activation of a local and systemic defence response. This response is based on transcriptional changes that are mainly controlled and coordinated by phytohormones. The above- and belowground part of plants can be challenged by different insects and therefore, the defence response to one attacker can influence other insects. The study of plant-mediated interaction between pests that are physically or temporally separated yielded a variety of outcomes, with positive, negative, and neutral effects described in the literature. In this study, we examined possible plant-mediated interactions between above- and belowground insect pests with different feeding guilds in tomato, Solanum lycopersicum L. (Solanaceae). Root feeding by Agriotes lineatus (L.) (Coleoptera: Elateridae) larvae caused a decrease in the development rate, fertility, and weight in Myzus persicae (Sulzer) (Hemiptera: Aphididae). To gain insights into the plant systemic signalling mechanisms, we also performed a time-course expression analysis of defence-related phytohormone marker genes. The result indicated a dynamic systemic response in leaves following root herbivory, which comprises the activation of genes dependent on different molecular pathways involved in plant stress response. Our work demonstrated that root herbivory increased aphid resistance in tomato and that a combination of signals enables the communication between below- and aboveground pests with different feeding guilds.
There are no comments yet. You can post the first one!
Post a comment
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.