TY - JOUR
T1 - Influence of induced plant defenses in cotton and tomato on the efficacy of baculoviruses on noctuid larvae
AU - Hoover, Kelli
AU - Stout, Michael J.
AU - Alaniz, Susan A.
AU - Hammock, Bruce D.
AU - Duffey, Sean S.
N1 - Funding Information:
Acknowledgments—This manuscript is dedicated in fondest memory to Dr. Sean Duffey who passed away on May 21, 1997. This research was supported in part by USDA Competitive Research Grants Program, 94-37302-0567; US/Israel BARD #IS-2530-95C; UC Systemwide Biotechnology Research and Education Program; NSF DMS 95-10511 Center for Statistics in Science & Technology Group; and E. I. DuPont De Nemours & Co. K. H. was a Novo-Nodisk Entotech fellow. We thank C. M. Schultz, K. T. Kishida, J. M. Legac, L. A. DiGiorgio, and K. V. Workman for technical support. We also thank the Hammock baculovirus research group, G. W. Felton, and R.
PY - 1998
Y1 - 1998
N2 - Constitutive phenolase activity of plants has a profound ability to modulate disease in insects caused by baculoviruses. We investigated the influence of damage-induced plant phenolic oxidases in cotton and tomato on mortality caused by two different baculoviruses in their respective hosts, Heliothis virescens (L.) and Helicoverpa zea (Boddie). For both plant species, peroxidase (POD) and phenolic levels were predictive of larval mortality caused by baculoviruses. The higher the POD activity, the lower the mortality in both hosts. Different classes of phenolics (e.g., monohydroxyphenolics vs. catecholic phenolics) in combination with POD activity had different effects on the severity of vital disease depending upon mixture, which implies that vial efficacy is predictable only if total chemical content of the plants is specified. Inhibition of baculoviral disease by plant phenolase activity has potential implications for the compatibility of baculoviruses with induced resistance in IPM programs.
AB - Constitutive phenolase activity of plants has a profound ability to modulate disease in insects caused by baculoviruses. We investigated the influence of damage-induced plant phenolic oxidases in cotton and tomato on mortality caused by two different baculoviruses in their respective hosts, Heliothis virescens (L.) and Helicoverpa zea (Boddie). For both plant species, peroxidase (POD) and phenolic levels were predictive of larval mortality caused by baculoviruses. The higher the POD activity, the lower the mortality in both hosts. Different classes of phenolics (e.g., monohydroxyphenolics vs. catecholic phenolics) in combination with POD activity had different effects on the severity of vital disease depending upon mixture, which implies that vial efficacy is predictable only if total chemical content of the plants is specified. Inhibition of baculoviral disease by plant phenolase activity has potential implications for the compatibility of baculoviruses with induced resistance in IPM programs.
UR - http://www.scopus.com/inward/record.url?scp=0031917172&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031917172&partnerID=8YFLogxK
U2 - 10.1023/A:1022528324344
DO - 10.1023/A:1022528324344
M3 - Article
AN - SCOPUS:0031917172
SN - 0098-0331
VL - 24
SP - 253
EP - 271
JO - Journal of Chemical Ecology
JF - Journal of Chemical Ecology
IS - 2
ER -