Influence of ozone on induced resistance in soybean to the Mexican bean beetle (Coleoptera: Coccinellidae)

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Environmental Entomology; (USA)

DOI:https://doi.org/10.1093/ee/19.4.854· OSTI ID:5797719

Lin, Hengchen; Kogan, M ^[1]; Endress, A G ^[2]

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1. Univ. of Illinois, Champaign (USA)
2. Illinois Natural History Survey, Champaign, IL (USA)

The influence of ozone (O{sub 3}) on induced resistance in soybean, Glycine max (L.) Merr., cv. Williams 82, was investigated. Feeding by larval soybean looper, Pseudoplusia includens (Walker), was used to induce resistance, and the feeding preference of the Mexican bean beetle, Epilachna varivetis Mulsant, was used to indicate induced resistance. Greenhouse grown soybean plants at the V9 growth stage (eight open trifoliolates) were used in all experiments. One day following feeding injury by the soybean looper, the injured plants and the uninjured controls were exposed to three concentrations of ozone in transparent mylar chambers; level in ambient air (about 0.025 ppm), 0.06 ppm, or 0.1 ppm. Plants were exposed for 5 h a day for a period of 2-4 d. Ozone exposure at the levels used in this study produced no visible injuries to leaves. Low doses (up to 4-d-exposure to 0.06 ppm or 2-d exposure to 0.1 ppm) of ozone overrode the resistance in soybean that had been induced by the feeding of soybean looper larvae. Higher doses (3- or 4-d exposure to 0.1 ppm) of ozone actually resulted in a greater acceptability by the Mexican bean beetle of plants injured by the soybean looper than of uninjured plants. Doses of ozone used in these experiments did not significantly alter the feeding preference of the Mexican bean beetle for the uninjured plants. Because ozone pollution and herbivore injury are commonly experienced by plants in nature, the results of this study add another perspective to insect-plant interactions.

• OSTI ID: 5797719
• Journal Information: Environmental Entomology; (USA), Journal Name: Environmental Entomology; (USA) Vol. 19:4; ISSN 0046-225X; ISSN EVETB
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
ARTHROPODS
BEETLES
BIOLOGICAL EFFECTS
BIOLOGICAL STRESS
COLEOPTERA
DOSE-RESPONSE RELATIONSHIPS
FEEDING
GLYCINE HISPIDA
INJURIES
INSECTS
INVERTEBRATES
LEGUMINOSAE
MAGNOLIOPHYTA
MAGNOLIOPSIDA
OZONE
PLANTS
TOLERANCE