Feeding preferences of spruce budworm (Choristoneura fumiferana Clem.) larvae to some host-plant chemicals

1981 ◽  
Vol 7 (2) ◽  
pp. 391-402 ◽  
Author(s):  
P. J. Albert ◽  
P. A. Jerrett
Keyword(s):  
Host Plant ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Feeding Preferences ◽  
Host Plant Chemicals ◽  
Plant Chemicals

scholarly journals Host plant chemicals serve intraspecific communication in the white-spotted longicorn beetle, Anoplophora malasiaca (Thomson) (Coleoptera: Cerambycidae)

2007 ◽  
Vol 42 (2) ◽  
pp. 255-268 ◽  
Author(s):  
Hiroe Yasui ◽  
Tetsuya Yasuda ◽  
Midori Fukaya ◽  
Toshiharu Akino ◽  
Sadao Wakamura ◽  
...  
Keyword(s):  
Host Plant ◽  
Host Plant Chemicals ◽  
Longicorn Beetle ◽  
Plant Chemicals ◽  
Intraspecific Communication

Induced preference for host plant chemicals in the tobacco hornworm: contribution of olfaction and taste

2009 ◽  
Vol 195 (6) ◽  
pp. 591-601 ◽  
Author(s):  
John I. Glendinning ◽  
Cassidy Foley ◽  
Irina Loncar ◽  
Meelu Rai
Keyword(s):  
Host Plant ◽  
Tobacco Hornworm ◽  
Host Plant Chemicals ◽  
Plant Chemicals

scholarly journals Detoxification of host plant phenolic aglycones by the spruce budworm

2018 ◽  
Author(s):  
Dominic Donkor ◽  
Zahra Mirzahosseini ◽  
Jacquie Bede ◽  
Eric Bauce ◽  
Emma Despland
Keyword(s):  
Enzyme Activity ◽  
Host Plant ◽  
Choristoneura Fumiferana ◽  
Spruce Budworm ◽  
Glutathione S Transferase ◽  
Detoxification Enzyme ◽  
Counter Measures ◽  
Ph Conditions ◽  
Detoxifying Enzyme ◽  
Midgut Ph

AbstractThis study examines the post-ingestive fate of two host-plant derived small-molecule phenolics (the acetophenones piceol and pungenol) that have previously been shown to be toxic to the outbreaking forest pest, spruce budworm (Choristoneura fumiferana). We test first whether these compounds are transformed during passage through the midgut, and second whether the budworm upregulates activity of the detoxification enzyme glutathione-s-transferase (GST) in response to feeding on these compounds. Insects were reared on either foliage or artificial diet to the fourth instar, when they were transferred individually to one of two treatment diets, either control or phenolic-laced, for approximately 10 days, after which midguts were dissected out and used for Bradford soluble protein and GST enzyme activity analysis. Frass was collected and subjected to HPLC-DAD-MS. HPLC showed that the acetophenones do not autoxidize under midgut pH conditions, but that glucose- and glutathione-conjugates are present in the frass of insects fed the phenolic-laced diet. GST enzyme activity increases in insects fed the phenolic-laced diet, in both neutral pH and alkaline assays. These data show that the spruce budwom exhibits counter-adaptations to plant phenolics similar to those seen in angiosperm feeders, upregulating an important detoxifying enzyme (GST) and partially conjugating these acetophenones prior to elimination, but that these counter-measures are not totally effective at mitigating toxic effects of the ingested compounds in the context of our artifical-diet based laboratory experiment.

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