Abstract
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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 253-271 |
| Number of pages | 19 |
| Journal | Journal of Chemical Ecology |
| Volume | 24 |
| Issue number | 2 |
| State | Published - 1998 |
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Keywords
- Baculoviruses
- Helicoverpa zea
- Heliothis virescens
- Induced resistance
- Oxidative enzymes
- Peroxidase
- Polyphenol oxidase
- Tritrophic interactions
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Ecology
Cite this
Influence of induced plant defenses in cotton and tomato on the efficacy of baculoviruses on noctuid larvae. / Hoover, Kelli; Stout, Michael J.; Alaniz, Susan A.; Hammock, Bruce D.; Duffey, Sean S.
In: Journal of Chemical Ecology, Vol. 24, No. 2, 1998, p. 253-271.Research output: Contribution to journal › Article
}
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.
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.
KW - Baculoviruses
KW - Helicoverpa zea
KW - Heliothis virescens
KW - Induced resistance
KW - Oxidative enzymes
KW - Peroxidase
KW - Polyphenol oxidase
KW - Tritrophic interactions
UR - http://www.scopus.com/inward/record.url?scp=0031917172&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031917172&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0031917172
VL - 24
SP - 253
EP - 271
JO - Journal of Chemical Ecology
JF - Journal of Chemical Ecology
SN - 0098-0331
IS - 2
ER -