Survey of a salivary effector in caterpillars: Glucose oxidase variation and correlation with host range

Herb Eichenseer, M. C. Mathews, Jaimie S. Powell, Gary Felton

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

Salivary glucose oxidase (GOX) has been reported in a few insect species where it plays a role in protection against infectious disease. Our recent research has focused on the role of this salivary enzyme in the noctuid Helicoverpa zea, where it functions as an effector to suppress the induced defenses of the host plant Nicotiana tabacum. In this study, we examined the labial gland GOX activities in 23 families of Lepidoptera (85 species) and two families of plant-feeding Hymenoptera (three species). We analyzed the relationship between host breadth and GOX activities, and we found a significant relationship, where highly polyphagous species were more likely to possess relatively high levels of GOX compared to species with more limited host range. We also examined the effect of diet on GOX activity and found that the host plant had a significant effect on enzyme activity. The significance of these findings is discussed in relation to caterpillar host breadth.

Original languageEnglish (US)
Pages (from-to)885-897
Number of pages13
JournalJournal of Chemical Ecology
Volume36
Issue number8
DOIs
StatePublished - Jul 15 2010

Fingerprint

glucose oxidase
Glucose Oxidase
Host Specificity
host range
caterpillar
insect larvae
glucose
host plant
host plants
Hymenoptera
Lepidoptera
Helicoverpa zea
Enzyme activity
infectious disease
Enzymes
Nutrition
lips
Lip
Nicotiana tabacum
infectious diseases

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry

Cite this

Eichenseer, Herb ; Mathews, M. C. ; Powell, Jaimie S. ; Felton, Gary. / Survey of a salivary effector in caterpillars : Glucose oxidase variation and correlation with host range. In: Journal of Chemical Ecology. 2010 ; Vol. 36, No. 8. pp. 885-897.
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Survey of a salivary effector in caterpillars : Glucose oxidase variation and correlation with host range. / Eichenseer, Herb; Mathews, M. C.; Powell, Jaimie S.; Felton, Gary.

In: Journal of Chemical Ecology, Vol. 36, No. 8, 15.07.2010, p. 885-897.

Research output: Contribution to journalArticle

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