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Spatial organization of the glucosinolate-myrosinase system in brassica specialist aphids is similar to that of the host plant
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Bridges, M., Jones, Alexandra M., Bones, A. M., Hodgson, C., Cole, R., Bartlet, E., Wallsgrove, R., Karapapa, V. K., Watts, N. and Rossiter, J. T. (2002) Spatial organization of the glucosinolate-myrosinase system in brassica specialist aphids is similar to that of the host plant. Proceedings of the Royal Society B: Biological Sciences, Volume 269 (Number 1487). pp. 187-191. doi:10.1098/rspb.2001.1861 ISSN 0962-8452.
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Official URL: http://dx.doi.org/10.1098/rspb.2001.1861
Abstract
Secondary metabolites are important in plant defence against pests and diseases. Similarly, insects can use plant secondary metabolites in defence and, in some cases, synthesize their own products. The paper describes how two specialist brassica feeders, Brevicoryne brassicae (cabbage aphid) and Lipaphis erysimi (turnip aphid) can sequester glucosinolates (thioglucosides) from their host plants, yet avoid the generation of toxic degradation products by compartmentalizing myrosinase (thioglucosidase) into crystalline microbodies. We propose that death, or damage, to the insect by predators or disease causes disruption of compartmentalized myrosinase, which results in the release of isothiocyanate that acts as a synergist for the alarm pheromone E–β–farnesene.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) | ||||
Journal or Publication Title: | Proceedings of the Royal Society B: Biological Sciences | ||||
Publisher: | The Royal Society Publishing | ||||
ISSN: | 0962-8452 | ||||
Official Date: | 22 January 2002 | ||||
Dates: |
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Volume: | Volume 269 | ||||
Number: | Number 1487 | ||||
Page Range: | pp. 187-191 | ||||
DOI: | 10.1098/rspb.2001.1861 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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