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ViewAttendees 3

Section Symposium

Plant-Insect Ecosystems

Ecological and Evolutionary Consequences of Plant Domestication on Multitrophic Interactions

Induced plant defenses in cultivated and wild tomato species

Wednesday, November 8, 2023
8:05 AM – 8:25 AM ET
Location: Gaylord National Resort & Convention Center, Maryland A
In-Person

    Presenting Author(s)

  • GF

    Gary Felton

    Pennsylvania State University
    University Park, Pennsylvania

    • Co-author(s)

  • SP

    Sulav Paudel

    AgResearch New Zealand
    Lincoln, New Zealand

  • PL

    Po-An Lin

    National Taiwan University
    Taipei, Taipei, Taiwan (Republic of China)

A reduction in plant resistance against insect herbivores is generally expected in domesticated crop species compared to their wild species, In the present study, the inducibility of several plant defense mechanisms (e.g. defensive chemicals, trichomes, plant volatiles) were investigated, and the performance and preference of the herbivore Helicoverpa zea were measured in three different tomato genotypes; a) wild tomato, Solanum pimpinellifolium L. (accession LA 2093), b) cherry tomato, S. lycopersicum L. var. cerasiforme (wild cherry tomato), and c) cultivated tomato, S. lycopersicum L. var. Better Boy). In general, induced defenses were greater in the cultivated tomato while constitutive defenses were greatest in the wild species/genotypes. The role of the salivary effector glucose oxidase in mediating these interactions will be discussed.