Synergism between myristicin and xanthotoxin, a naturally cooccurring plant toxicant

Berenbaum, May R.; Neal, Jonathan J.

doi:10.1007/bf01012136

Cited by 177 publications

(90 citation statements)

References 23 publications

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“…Several researchers have reported the deterrent, repellent, and stimulant properties of those chemicals present in plants (Berenbaum and Neal, 1985;Ishaaya, 1986;Norris and Kogan, 2005). Since the insect-plant coevolution model was proposed by Ehrlich and Raven (1964), much emphasis has been placed on the toxicity of host-plant allelochemicals to explain this insect-host adaptation.…”

Section: Discussionmentioning

confidence: 99%

Biology and nutrition of Spodoptera frugiperda (Lepidoptera: Noctuidae) fed on different food sources

Silva

Bueno

Andrade

et al. 2017

Sci. agric. (Piracicaba, Braz.)

149

102

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We studied Spodoptera frugiperda development using different food sources in the laboratory and field. Newly hatched larvae were fed soybean, cotton, maize, wheat, and oat leaves. An artificial diet was used as the control. Duration of pre-pupal, pupal, and larva-adult period, pupal weight, sex ratio, survival, larva feeding preferences, oviposition preferences, and nutritional quality of different hosts were evaluated. Insects fed on wheat showed the shortest larva-adult period. The insects fed on cotton and soybean had longer larval development cycles and pupae of lower weight. Feeding preference was evident for third instar larvae and did not differ between wheat, oat, maize, and soybean, which were the preferred hosts. Moths oviposited to a greater extent on the upper canopy of wheat than that of other plants in both the no-choice and free-choice tests. Treatments influenced insect growth, food consumption, and digestion when nutritional variables were analyzed. Thus, grasses were better hosts for S. frugiperda development. Cotton was the least preferred food, followed by soybean. The present study can improve our understanding of S. frugiperda in these different crops and help in developing management strategies. Even though S. frugiperda is considered to be polyphagous, this pest is closely associated with grasses (maize, wheat, oat) and has lower potential as a soybean or cotton feeder. Howerver, S. frugiperda food intake regulation appears to be triggered by a complex of different mechanisms. Thus, S. frugiperda can also damage soybean and cotton and adapt to them in the absence of preferred hosts.

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Section: Discussionmentioning

confidence: 99%

Biology and nutrition of Spodoptera frugiperda (Lepidoptera: Noctuidae) fed on different food sources

Silva

Bueno

Andrade

et al. 2017

Sci. agric. (Piracicaba, Braz.)

149

102

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“…These compounds have been shown to have a range of bioactivities, including antimicrobial activity, cytotoxicity, ichthyodeterrency, or emetic properties. Acute toxicity of allelochemicals has been documented in herbivorous insects (Berenbaum 1978, Berenbaum & Neal 1985, though the more common effect is reduction in growth or fecundity or a s feeding deterrents (Scriber 1981, Berenbaum et al 1989). In either case, it is advantageous for an organism to metabolize and detoxify these compounds to an excretable product.…”

Section: Introductionmentioning

confidence: 99%

Biotransformation enzymes in Cyphoma gibbosum (Gastropoda: Ovulidae)- implications for detoxification of gorgonian allelochemicals

Vrolijk¹,

Targett²

1992

Mar. Ecol. Prog. Ser.

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The role of biotransformation enzymes in metabolism of lipophilic, dietary allelochemicals such as terpenoids and steroids has not been studied in marine organisms despite the significance of allelochemicals in the evolution of biotransformation enzymes and the importance of these enzymes in detoxification of anthropogenic xenobiotics. Here we report on cytochrome P450 and glutathione transferase (GST) from the digestive gland of Cyphoma gibbosum, a specialist predator that feeds on allelochemically rich gorgonian corals. Levels of these enzymes were compared from C. gibbosum collected in Belize from 4 different gorgonian prey species (Briareum asbestinum, Gorgonia ventalina, Plexaura homomalla, and Pseudopterogorgia americana). Cytochrome P450 specific content was very low and only quantifiable in C, gibbosum collected from P americana (21.4 to 27.4 pm01 mg-'1. A peak at ca 420 nm was also detected in most samples, indicative of degraded P450 or an independent, functional haemoprotein Methoxyresorufin 0-deethylase (MROD) and ethoxyresorufin 0-deethylase (EROD) were not detected in C. gibbosum. However, NADPH-cytochrome c (P4501 reductase (NCR) was detected in all samples and the specific activity ranged from 23.2 to 67.3 nmol min-' mg-' protein. Significantly higher NCR activity was detected in C. gibbosum collected from prostaglandin-rich P. homomalla. Glutathione transferase specific activity ranged from 2.76 to 4.05 pm01 min-' mg-l, ranking it among the highest ever reported (using l-chloro-2,4-dinitrobenzene as a model substrate). Significantly higher GST activity was detected in C. gibbosum collected from G. ventalina and B. asbestinum, suggesting that GST actlvity varies in response to different suites of gorgonian allelochemicals.

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“…Symptoms may include: reddening, blistering, and ulceration of skin; painful inflammation and irritation; deformities; increased pigmentation; photosensitization of skin and eyes; and, ocular pathologies (Burrows and Tyrl 2001). The degree of reaction depends primarily on the amount of active compound and the intensity of subsequent UV-A exposure, although the presence of other compounds (not or only weakly photo-activated) may have complementary or synergistic effects on photo-activated furanocoumarin toxicity Berenbaum and Neal 1985;. Sunlight is the usual source of energizing radiation, although artificial sources produce similar results (Jensen and Hansen 1939;Pedersen and Arles 1998).…”

Section: Economic Importancementioning

confidence: 99%

“…The polyphagus lepidopteran Heliothis zea Boddie (Noctuidae) has been used experimentally as a herbivore of wild parsnip (Berenbaum and Neal 1985;.…”

Section: Response To Parasitesmentioning

confidence: 99%

The Biology of Canadian weeds. 144. Pastinaca sativa L.

Cain¹,

Darbyshire²,

Francis³

et al. 2010

Can. J. Plant Sci.

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-J. 2010. The Biology of Canadian weeds. 144. Pastinaca sativa L. Can. J. Plant Sci. 90: 217Á240. The parsnip, Pastinaca sativa, was introduced to North America shortly after European settlement as an important root-crop. It subsequently escaped cultivation and naturalized as a less palatable ''wild'' form. Cultivation of parsnip has diminished in Canada to the point where it is now only a minor crop, but the wild form has increased as a troublesome weed, particularly in eastern regions.Wild parsnip is most prevalent in eastern Canada and the northeastern United States, but occurs across the continent except in the far north and extreme southeast. As a monocarpic biennial with a large tap root, it reproduces entirely by seed. A wide variety of habitats and soil types are tolerated. It is considered a noxious weed because of its toxic properties (primarily photo-activated dermatitis) to both humans and livestock. It invades disturbed sites, rights-of-way, pastures, perennial crops, and reduced-tillage fields where it effectively out-competes shorter vegetation.In arable fields, wild parsnip is normally controlled by tillage. Manual removal, cutting, and mowing can be effective in reducing seed production, but direct contact with plants or sap is hazardous. Various herbicides have been reported to be useful in the control of wild parsnip (e.g., glyphosate, 2,4-D, triclopyr, etc.), but little quantitative information is available on application rates and levels of control. Le panais, Pastinaca sativa, a e´te´introduit en Ame´rique du Nord peu apre`s la colonisation Europe´ene pour sa culture. C'e´tait un le´gume racine important. Par la suite, l'espe`ce s'est e´chappe´e pour donner une varie´te´« sauvage » moins comestible. Au Canada, la culture du panais a diminue´e pour n'eˆtre pre´sentement qu'une culture marginale. Toutefois la varie´te´sauvage s'est tellement re´pandue qu'elle est devenue une mauvaise herbe proble´matique, surtout dans les re´gions de l'Est. Le panais sauvage est surtout pre´valent dans l'est du Canada et le nord-est des É tats-Unis, mais on le retrouve un peu partout sur le continent, sauf dans les re´gions tre`s nordiques et celles le plus au sud-est. Cette bisannuelle monocarpique dote´e d'une grosse racine pivotante se multiplie uniquement par les semences. Elle tole`re de nombreux habitats et types de sol. On la conside`re comme une mauvaise herbe nuisible en raison de sa toxicite´(elle provoque essentiellement une dermatite active´e par la lumie`re) pour l'eˆtre humain et le be´tail. Le panais sauvage envahit les sites perturbe´s, emprises des chemins, les paˆturages, les champs de vivaces et champs ou le travail du sol est re´duit, en surpassant la ve´getation plus courte. Sur les terres arables, le labour permet de maıˆtriser son e´tablissement. Le sarclage manuel, la coupe et la tonte peuvent s'ave´rer efficaces pour re´duire la production de semences, mais il est risque´d'entrer en contact direct avec la plante ou sa se`ve. On rapporte que plusieurs herbicides permettent de lutter co...

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Synergism between myristicin and xanthotoxin, a naturally cooccurring plant toxicant

Cited by 177 publications

References 23 publications

Biology and nutrition of Spodoptera frugiperda (Lepidoptera: Noctuidae) fed on different food sources

Biology and nutrition of Spodoptera frugiperda (Lepidoptera: Noctuidae) fed on different food sources

Biotransformation enzymes in Cyphoma gibbosum (Gastropoda: Ovulidae)- implications for detoxification of gorgonian allelochemicals

The Biology of Canadian weeds. 144. Pastinaca sativa L.

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