Abstract
Damage simulating herbivory was tested as an inducer of furanocoumarins in the floral parts of the wild parsnip,Pastinaca sativa (Umbelliferae). In one experiment, primary umbels ofP. sativa were partially deflorated over the course of nine days, and higher-order umbels as well as the remaining primary umbel floral parts were sampled. Total furanocoumarin concentration was not significantly affected by defloration, but one furanocoumarin, isopimpinellin, increased in one floral stage of the secondary umbel in damaged plants. In a second experiment, primary umbels were completely deflorated and the higher-order umbels allowed to set seed. No significant effect of defloration on furanocoumarin content was found in the seeds of the higher-order umbels.
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Ashkenazy, D., Kashman, Y., Nyska, A., andFriedman, J. 1985. Furocoumarins in shoots ofPituranthos triradiatus (Umbelliferae) as protectants against grazing by hyrax (Procaviidae:Procavia capensis syriaca).J. Chem. Ecol. 11:231–239.
Baskin, J.M., andBaskin, C.M. 1979. Studies on the autecology and population biology of the weedy monocarpic perennial,Pastinaca sativa.J. Ecol. 67:601–610.
Beier, R.C., andOertli, E.H. 1983. Psoralen and other linear furocoumarins as phytoalexins in celery.Phytochemistry 22:2595–2597.
Berenbaum, M. 1978. Toxicity of a furanocoumarin to armyworms: A case of biosynthetic escape from insect herbivores.Science 201:532–534.
Berenbaum, M., andFeeny, P. 1981. Toxicity of angular furanocoumarins to swallowtail butterflies: Escalation in a coevolutionary arms race?Science 212:927–929.
Berenbaum, M.R., andNeal, J. 1985. Synergism between myristicin and xanthotoxin, a naturally co-occurring plant toxicant.J. Chem. Ecol. 11:1349–1358.
Berenbaum, M.R., andZangerl, A.R. 1986. Variation in seed furanocoumarin content within the wild parsnip (Pastinaca sativa).Phytochemistry 25:659–661.
Berenbaum, M.R., Zangerl, A.R., andNitao, J.K. 1984. Furanocoumarins in seeds of wild and cultivated parsnip.Phytochemistry 213:1809–1810.
Berenbaum, M.R., Zangerl, A.R., andNitao, J.K. 1986. Constraints on chemical coevolution: the parsnip webworm and wild parsnip.Evolution 40:1215–1228.
Capinera, J.L., andRoltsch, W.J. 1980. Response of wheat seedlings to actual and simulated migratory grasshopper defoliation.J. Econ. Entomol. 73:258–261.
Ceska, O., Chaudhary, S., Warrington, P., Poulton, G., andAshwood-Smith, M. 1986. Naturally-occurring crystals of photocarcinogenic furocoumarins on the surface of parsnip roots sold as food.Experientia 42:1302–1304.
Chapin, F.S., Bryant, J.P., andFox, J.F. 1985. Lack of induced chemical defense in juvenile Alaskan woody plants in response to simulated browsing.Oecologia 67:457–459.
Hendrix, S.D. 1979. Compensatory reproduction in a biennial herb following insect defloration.Oecologia 42:107–118.
Hendrix, S.D., andTrapp, E.J. 1981. Plant-herbivore interactions: Insect-induced changes in host plant sex expression and fecundity.Oecologia 49:119–122.
Johnson, C., Brannon, D.R., andKuc, J. 1973. Xanthotoxin: A phytoalexin ofPastinaca sativa root.Phytochemistry 12:2961–2962.
Johnson, N.D., andBrain, S.A. 1985. The response of leaf resin to artificial herbivory inEriodictyon californicum.Biochem. Syst. Ecol. 13:5–9.
Kogan, M., andPaxton, J. 1983. Natural inducers of plant resistance to insects, pp. 153–171,in P.A. Hedin (ed.). Plant Resistance to Insects. ACS Symposium Series 208. American Chemical Society, Washington, D.C.
Muckensturm, B., Duplay, D., Robert, P.C., Simonis, M.T., andKienlen, J.-C. 1981. Substances antiappetantes pourHeracleum sphondylium.Biochem. Syst. Ecol. 9:289–292.
Nitao, J.K., andZangerl, A.R. 1987. Floral development and chemical defense allocation in wild parsnip (Pastinaca saliva).Ecology 68:521–529.
Rhoades, D.F. 1979. Evolution of plant chemical defense against herbivores, pp. 3–54,in G.A. Rosenthal and D.H. Janzen (eds.). Herbivores. Their Interaction with Secondary Plant Metabolites. Academic Press, New York.
Rhoades, D.F. 1983. Herbivore population dynamics and plant chemistry, pp. 155–220,in R.F. Denno and M.S. McClure (eds.). Variable Plants and Herbivores in Natural and Managed Systems. Academic Press, New York.
Sokal, R.R., andRohlf, F.J. 1981. Biometry, 2nd ed. W.H. Freeman and Company, San Francisco.
Thompson, J.N. 1978. Within-patch structure and dynamics inPastinaca sativa and resource availability to a specialized herbivore.Ecology 59:443–448.
Wu, C.M., Koehler, P.E., andAyres, J.C. 1972. Isolation and identification of xanthotoxin (8-methoxypsoralen) and bergapten (5-methoxypsoralen) from celery infected withSclerotinia sclerotiorum.Appl. Microbiol. 23:852–856.
Yajima, T., Natsuki, K., andKatsura, M. 1977. Isolation of insect anti-feeding principles inOrixa japonica Thunb.Agric. Biol. Chem. 41:1263–1268.
Zangerl, A.R., andBerenbaum, M.R. 1987. Furanocoumarins in wild parsnip: Effects of photosynthetically active radiation, ultraviolet light, and nutrients.Ecology 68:516–520.
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Nitao, J.K. Artificial defloration and furanocoumarin induction inPastinaca sativa (Umbelliferae). J Chem Ecol 14, 1515–1522 (1988). https://doi.org/10.1007/BF01012423
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DOI: https://doi.org/10.1007/BF01012423