The Brown Marmorated Stink Bug Halyomorpha halys (Heteroptera: Pentatomidae), is a very polyphagous pest of fruit crops, horticultural crops and ornamentals. Native from eastern Asia, this invasive species was recorded for the first time in Modena in 2012 and is now spreading in Northern and Central Italy. With its establishment in the invaded areas, new interactions with native tri-trophic systems (plants - stink bugs - parasitoids) are expected. A plant attacked by an ovipositing stink bug may respond by the emission of induced plant synomones, which are exploited by egg parasitoids for host location (indirect defences). This mechanism had been studied for coevolved tritrophic systems at a behavioural, chemical and molecular level, and is now under investigation for novel interactions between H. halys and the native egg parasitoids Trissolcus basalis, T. cultratus (Hymenoptera: Platygastridae) and Anastatus bifasciatus (Hymenoptera: Eupelmidae). Additionally, plants may react directly to oviposition by reducing the development and fitness of new brood (priming of direct defences). This aspect is also under investigation in plants attacked by ovipositing H. halys females. Molecular mechanisms of plant defence responses are evaluated through expression analyses (RTqPCR) of marker genes for the salicylic and the octadecanoid pathways, comparing novel versus native systems to assess similarities and differences. Our research would be useful for evaluation of the effects of H. halys on native tritrophic systems and, on the other hand, biological control perspectives against this invasive species.
Rondoni, G., Malek, R., Moretti, C., Maistrello, L., Peri, E., Haye, T., et al. (2016). Plant responses induced by Halyomorpha halys (Het.: Pentatomidae). In Atti (pp.128-128).
|Autori:||Rondoni, G.; Malek, R.; Moretti, C.; Maistrello, L.; Peri, E.; Haye, T.; Buonaurio, R.; Colazza, S.; Conti, E.|
|Titolo:||Plant responses induced by Halyomorpha halys (Het.: Pentatomidae)|
|Settore Scientifico Disciplinare:||Settore AGR/11 - Entomologia Generale E Applicata|
|Nome del convegno:||Congresso Nazionale Italiano di Entomologia|
|Luogo del convegno:||Padova|
|Anno del convegno:||20-24 giugno 2016|
|Numero del convegno:||XXV|
|Data di pubblicazione:||2016|
|Numero di pagine:||1|
|Citazione:||Rondoni, G., Malek, R., Moretti, C., Maistrello, L., Peri, E., Haye, T., et al. (2016). Plant responses induced by Halyomorpha halys (Het.: Pentatomidae). In Atti (pp.128-128).|
|Tipologia:||0 - Proceedings (TIPOLOGIA NON ATTIVA)|
|Appare nelle tipologie:||0 - Proceedings (TIPOLOGIA NON ATTIVA)|