TY - JOUR
T1 - Survey of a salivary effector in caterpillars
T2 - Glucose oxidase variation and correlation with host range
AU - Eichenseer, Herb
AU - Mathews, M. C.
AU - Powell, Jaimie S.
AU - Felton, Gary W.
N1 - Funding Information:
Acknowledgements We thank R.V. Barbehenn, M.C. Buxton, L. Day, K.H. Haynes, B. Lewis, G. Musick, B. Oppert, D.C. Steinkraus, A.M. Simmons, and S.Y. Young, A. Zangerl for supplying caterpillars. We received financial aid from the Theodore Roosevelt Memorial Fund of the American Museum of Natural History, National Science Foundation, USDA-NRI 2005–35607-15242 and USDA-AFRI 2010-65105-20639.
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/77955051549
UR - https://www.scopus.com/inward/citedby.url?scp=77955051549&partnerID=8YFLogxK
U2 - 10.1007/s10886-010-9830-2
DO - 10.1007/s10886-010-9830-2
M3 - Article
C2 - 20632075
AN - SCOPUS:77955051549
SN - 0098-0331
VL - 36
SP - 885
EP - 897
JO - Journal of Chemical Ecology
JF - Journal of Chemical Ecology
IS - 8
ER -
