Abstract
The antifeedant effects of three citrus limonoids (limonin, obacunone, and nomilin) which differ only in the structure of the A-ring were compared in feeding assays with fourth-instar Colorado potato beetles, Leptinotarsa decemljneata (Say). In contrast to studies with other insects, the results of choice assays showed no differences among the three limonoids in their ability to deter feeding. No-choice assays also indicated no differences among the limonoids and, along with incidental observations, suggested that all three Iimonoids acted as toxins. The changes in the A-ring represented by obacunone and nomilin may be important in enhancing deterrency against some insect species but have no effect in increasing the toxicity of limonoids against Colorado potato beetle larvae.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Choice assays found no deterrence differences among three citrus limonoids.
CitrusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“choice assays showed no differences among the three limonoids in their ability to deter feeding”
t0“Citrus Limonoids”
Claim · model-written summary
No-choice assays found no differences among the limonoids.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No-choice assays also indicated no differences among the limonoids”
t0“Citrus Limonoids”
Claim · model-written summary
No-choice assays and observations suggested all three limonoids acted as toxins.
- Outcome
- all three Iimonoids acted as toxinse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suggested that all three Iimonoids acted as toxins”
t0“Citrus Limonoids”
Claim · model-written summary
A-ring changes in obacunone and nomilin may enhance deterrence against some insects.
- Compound
- obacunone and nomiline0
- Outcome
- enhancing deterrency against some insect speciese0
- Qualifier
- changes in the A-ringe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The changes in the A-ring represented by obacunone and nomilin may be important in enhancing deterrency against some insect species”
t0“Citrus Limonoids”
Claim · model-written summary
A-ring changes had no effect on toxicity against Colorado potato beetle larvae.
- Interactor
- Colorado potato beetle
Leptinotarsa decemlineatae0pest - Compound
- obacunone and nomiline1
- Outcome
- toxicity of limonoids against Colorado potato beetle larvaee0
- Direction
- no effecte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“have no effect in increasing the toxicity of limonoids against Colorado potato beetle larvae”
e1“changes in the A-ring represented by obacunone and nomilin”
t0“Citrus Limonoids”