<b>Tyramine from the leaves of wild parsnip: a stimulant and synergist for oviposition by the black swallowtail butterfly</b>

Carter, Maureen; Sachdev-Gupta, K.; Feeny, Paul

doi:10.1046/j.1365-3032.1998.234100.x

Cited by 15 publications

(7 citation statements)

References 61 publications

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“…It is clear from our results that plant host recognition of pigeonpea by larvae of H. armigera is not attributable to any of the individual phenolic compounds isolated in this study. Synergism between two or more compounds can determine host selection by gravid female Lepidoptera (Feeny et al, 1988;Roessingh et al, 1991;Carter et al, 1998). Thus, the interactions between phenolic and/or other compounds could similarly affect the feeding of larvae of H. armigera on pigeonpea.…”

Section: Discussionmentioning

confidence: 99%

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Stevenson

Simmonds

et al. 2003

Journal of Chemical Ecology

101

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Abstract-A methanol extract of the pod surfaces of Cajanus cajan, a feeding stimulant for fifth-instar Helicoverpa armigera, was shown to contain four main phenolic compounds. Three of these were identified as isoquercitrin, quercetin, and quercetin-3-methyl ether, by comparing UV spectra and HPLC retention times with authentic standards. The fourth compound was isolated by semipreparative HPLC and determined to be 3-hydroxy-4-prenyl-5-methoxystilbene-2-carboxylic acid (stilbene) by NMR spectroscopy and mass spectrometry. Quercetin, isoquercitrin, and quercetin-3-methyl did not affect the selection-behavior of fifth-instar H. armigera. However, larvae were deterred from feeding on glass-fiber disks impregnated with the stilbene. Furthermore, larvae exposed to quercetin-3-methyl ether consumed significant amounts of both disks. In a binary-choice bioassay, a combination of quercetin-3-methyl ether and the stilbene on one disk and pure quercetin-3-methyl ether on the other disk resulted in increased consumption of both glass-fiber disks by larvae. In contrast, consumption was reduced if the combination was presented to larvae on one disk with purified stilbene on the other disk. Cajanus cajan cultivars that varied in their susceptibility to H. armigera were surveyed for the presence of the four phenolic compounds. An absence of quercetin and higher concentrations of isoquercitrin than the cultivated variety characterized pod surface extracts of pod-borer-resistant cultivars. In addition, the ratio of the stilbene to quercetin-3-methyl ether was greater in the pod-borer-resistant cultivars. These findings * To whom correspondence should be addressed. E-mail. p.stevenson@kew.org

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Section: Discussionmentioning

confidence: 99%

Untitled

Green

Stevenson

Simmonds

et al. 2003

Journal of Chemical Ecology

101

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“…Using artificial leaves soaked with extracts or specific compounds prepared from host plant leaves, chemicals referred to oviposition regulators, stimulants or repellents, have been identified 4,5 . A number of oviposition regulating compounds have been identified for swallowtail butterfly species in the genus Papilio, most members of which feed exclusively on the two plant families, Rutaceae and Apiaceae [6][7][8] . Extensive analysis by Nishida's group has identified ten oviposition stimulants in Papilio xuthus 9 .…”

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confidence: 99%

A gustatory receptor involved in host plant recognition for oviposition of a swallowtail butterfly

et al. 2011

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swallowtail butterflies belonging to the family of Papilionidae selectively utilize a limited number of plants from a single or a few families. Female butterflies lay eggs on their host only when they detect specific chemicals through their foreleg chemosensilla while drumming on the leaf surface. Here we show that the butterfly, Papilio xuthus, uses a gustatory receptor specific for synephrine to select its host in oviposition behaviour. We identify a gustatory receptor gene involved in the recognition of an oviposition stimulant, synephrine, from the P. xuthus by a combination of in silico, in vitro and in vivo approaches. The receptor, PxutGr1, responds specifically to synephrine in sf9 cells. The sensitivity of tarsal taste sensilla to synephrine and the oviposition behaviour in response to synephrine are strongly reduced after injecting double-stranded RnA of PxutGr1 into pupae. These observations indicate that the receptor PxutGr1 represents a key factor in host specialization in P. xuthus.

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“…If the first inflorescence is damaged by herbivores, later developing inflorescences compensate for the loss by producing both more flowers and a greater number of hermaphrodite flowers than undamaged plants (Hendrix and Trapp 1981). The complex chemistry in wild parsnip may modify insect feeding or growth in both negative (e.g., Berenbaum et al 1989Cianfrogna et al 2002), and positive ways (Wiklund 1973;Berenbaum et al 1989;Berenbaum and Zangerl 1992;Carter et al 1998).…”

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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Tyramine from the leaves of wild parsnip: a stimulant and synergist for oviposition by the black swallowtail butterfly

Cited by 15 publications

References 61 publications

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A gustatory receptor involved in host plant recognition for oviposition of a swallowtail butterfly

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

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