Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/10834
Title: Indutores de defesa de plantas em interações envolvendo cultivos agrícolas, pragas de solo e nematoides entomopatogênicos
Authors: Moino Junior, Alcides
Pareja, Martin
Peñaflor, Maria Fernanda Gomes Villalba
Dickson, Donald W.
Duncan, Larry W.
Souza, Brígida
Keywords: Nematoides entomopatogênicos
Interações tritróficas
Vias de defesa da planta
Inimigos naturais
Entomopathogenic nematodes
Tritrophic interactions
Plant defense pathways
Natural enemies
Issue Date: 18-Feb-2016
Publisher: Universidade Federal de Lavras
Citation: FILGUEIRAS, C. C. Indutores de defesa de plantas em interações envolvendo cultivos agrícolas, pragas de solo e nematoides entomopatogênicos. 2015. 109 p. Tese (Doutorado em Entomologia)-Universidade Federal de Lavras, Lavras, 2015.
Abstract: Plants inhabit two dynamic environments simultaneously, facing attack from foliar herbivores aboveground and root herbivores belowground. Plant defense pathways play a critical role in mediating responses to these attacks. Here, we examine the role of plant defense pathway stimulation aboveground with Methyl Salicylate and Methyl Jasmonate on the tritrophic interactions between plants, herbivores, and entomopathogenic nematode natural enemies belowground. We find that aboveground herbivory in corn and stimulation of the jasmonic acid and salicylic acid pathways in corn and citrus can recruit entomopathogenic nematodes belowground. Further, we implicate a specific induced plant volatile as mediating this recruitment in citrus. Additionally, we explore the effect of elicitor dose and nematode release parameters affecting nematode recruitment to elicitor treated corn seedlings. These results suggest a broad role for belowground signaling in tritrophic interactions, emphasize the connection between the above and belowground parts of plants as mediated by plant defense pathways, and point to novel strategies for enhancing biological control of subterranean insect pests with entomopathogenic nematodes in the field.
URI: http://repositorio.ufla.br/jspui/handle/1/10834
Appears in Collections:Entomologia - Doutorado (Teses)



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