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CytosolicLOXoverexpression inArabidopsisenhances the attractiveness of parasitic wasps in response to herbivory and incidences of parasitism

Authors :
Junji Takabayashi
Kenji Matsui
Kaori Shiojiri
Gen Ichiro Arimura
Kyutaro Kishimoto
Takaaki Nishioka
Soichi Urashimo
Rika Ozawa
Source :
Journal of Plant Interactions. 8:207-215
Publication Year :
2013
Publisher :
Informa UK Limited, 2013.

Abstract

In response to herbivory by cabbage white butterfly (Pieris rapae) larvae, crucifer plants emit green leaf volatiles (GLVs) that attract Cotesia glomerata, a carnivorous natural enemy of the larvae. To artificially increase GLV production by crucifers, we created transgenic Arabidopsis that constitutively expressed cucumber cytosolic lipoxygenase (CsLOX2). Transgenic Arabidopsis (p35S::CsLOX2.6 and p35S::CsLOX2.14) infested with P. rapae larvae were more attractive to C. glomerata than wild type (wt) and produced more jasmonic acid. p35S::CsLOX2.14 had a higher incidence of parasitism of the larvae than did wt. Infested transgenic plants emitted more (Z)-3-hexenyl acetate, (E)-β-ocimene, (Z)-β-ocimene, and DMNT than infested wt plants; (Z)-3-hexenyl acetate is known to attract Cotesia wasps. Transforming cruciferous crops with cytosolic CsLOX2 could aid integrated pest management via tritrophic interactions.

Details

ISSN :
17429153 and 17429145
Volume :
8
Database :
OpenAIRE
Journal :
Journal of Plant Interactions
Accession number :
edsair.doi...........d8a0b97f47e378f556025e04a2876b58
Full Text :
https://doi.org/10.1080/17429145.2013.772663