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  • Baricevic D, Umek A, Kreft S, Maticic B, Zupanic A. 1999. Effect of water stress and nitrogen fertilization of the content of hyoscyamine and scopolamine in the roots of deadly nightshade (Atropa belladonna). Environmental and Experimental Botany 42: 1724.
  • Boer de NJ. 1999. Pyrrolizidine alkaloid distribution in Senecio jacobaea minimises losses to generalist feeding. Entomologia Experimentalis et Applicata 91: 169173.
  • Borstel von K, Witte L, Hartmann T. 1989. Pyrrolizidine alkaloid patterns in populations of Senecio vulgaris, S. vernalis and their hybrids. Phytochemistry 28: 16351638.
  • Brown MS, Molyneux RJ. 1996. Effects of water and mineral nutrient deficiencies on pyrrolizidine alkaloid content of Senecio vulgaris flowers. Journal of the Science of Food and Agriculture 70: 209211.
  • Chung WG, Buhler DR. 1995. Major factors for the susceptibility of guinea pig to the pyrrolizidine alkaloid jacobine. Drug Metabolism and Disposition 23: 12631267.
  • Coley PD, Bryant JP, Chapin FS. 1985. Resource availability and plant herbivore defence. Science 230: 895899.
  • Dyer LA, Dodson CD, Beihoffer J, Letourneau DK. 2001. Trade-offs in antiherbivore defenses in Piper cenocladum: ant mutualists versus plant secondary metabolites. Journal of Chemical Ecology 27: 581592.
  • Falk LR, Doran PM. 1996. Influence of inoculum morphology on growth of Atropa belladonna hairy roots and production of tropane alkaloids. Biotechnology Letters 18: 10991104.
  • Gonzalez JA, EstevezBraun A, EstevezReyes R, Bazzocchi IL, Moujir L, Jimenez IA, Ravelo AG, Gonzalez AG. 1995. Biological activity of secondary metabolites from Bupleurum salicifolium (Umbelliferae). Experientia 51: 3539.
  • Hartmann T, Dierich B. 1998. Chemical diversity and variation of pyrrolizidine alkaloids of the senecionine type: biological need or coincidence? Planta 206: 443451.
  • Hartmann T, Ehmke A, Eilert U, Von Borstel K, Theuring C. 1989. Sites of synthesis, translocation and accumulation of pyrrolizidine alkaloid N-oxides in Senecio vulgaris L. Planta 177: 98107.
  • Hartmann T, Toppel G. 1987. Senecionine N-oxide, the primary product of pyrrolizidine alkaloid biosynthesis in root cultures of Senecio vulgaris. Phytochemistry 26: 16391643.
  • Hartmann T, Witte L. 1995. Pyrrolizidine alkaloids: chemical, biological and chemoecological aspects. In: PelletierSW, ed. Alkaloids: chemical and biological perspectives, Vol. 9. Oxford, UK: Pergamon Press, 155233.
  • Hartmann T, Zimmer M. 1986. Organ specific distribution and accumulation of pyrrolizidine alkaloids during the life history of two annual Senecio species. Plant Physiology 112: 6780.
  • Höft M, Verpoorte R, Beck E. 1996. Growth and alkaloid contents in leaves of Tabernaemontana pachysiphon Stapf (Apocynaceae) as influenced by light intensity, water and nutrient supply. Oecologia 107: 160169.
  • Hol WHG, Van Veen JA. 2002. Pyrrolizidine alkaloids from Senecio jacobaea affect fungal growth. Journal of Chemical Ecology 28: 17631772.
  • Hook I, Poupat C, Ahond A, Guenard D, Gueritte F, Adelin M, Wang X, Dempsey D, Breuillet S, Potier P. 1999. Seasonal variation of neutral and basic taxoid contents in shoots of European Yew (Taxus baccata). Phytochemistry 52: 10411045.
  • Iason GR, Hester AJ. 1993. The response of heather (Calluna vulgaris) to shade and nutrients – prediction of the carbon-nutrient balance hypothesis. Journal of Ecology 81: 7580.
  • Johnson EA, Molyneux RJ, Merril GB. 1985. Chemistry of toxic range plants. Variation in pyrrolizidine alkaloid content of Senecio, Amsinckia, and Crotalaria species. Journal of Agricultural and Food Chemistry 33: 5055.
  • Karban R, Baldwin IT. 1997. Induced responses to herbivory. Chicago, IL, USA: University of Chicago Press.
  • Koricheva J. 1999. Interpreting phenotypic variation in plant allelochemistry: problems with the use of concentrations. Oecologia 119: 467473.
  • Laus G, Brossner D, Keplinger K. 1997. Alkaloids of peruvian Uncaria tomentosa. Phytochemistry 45: 855860.
  • Van Loon JA, Schoonhoven LM. 1999. Specialist deterrent chemoreceptors enable Pieris caterpillars to discriminate between chemically different deterrents. Entomologica Experimentalis et Applicata 91: 2935.
  • Mattocks AR. 1986. Chemistry and toxicology of pyrrolizidine alkaloids. Orlando, FL, USA: Academic Press.
  • Novozamsky I, Houba VJG, Van Eck R, Van Vark W. 1983. A novel digestion technique for multi-element plant analysis. Communications in Soil Science and Plant Analysis 14: 239249.
  • O'Dowd DJ, Edgar JA. 1989. Seasonal dynamics in the pyrrolizidine alkaloids of Heliotropium europaeum. Australian Journal of Ecology 14: 95105.
  • Obeso JS, Grubb PJ. 1994. Interactive effects of extent and timing of defoliation, and nutrient supply on reproduction in a chemically protected annual Senecio vulgaris. Oikos 71: 506514.
  • Partel M, Zobel M, Zobel K, Van Der Maarel E. 1996. The species pool and its relation to species richness: evidence from Estonian plant communitities. Oikos 75: 111117.
  • Prins AH, Vrieling K, Klinkhamer PGL, De Jong T. 1990. Flowering behaviour of Senecio jacobaea: effects of nutrient availability and size dependent vernalization. Oikos 59: 248252.
  • Ralphs MH, Gardner DR, Pfister JA. 2000. A functional explanation for patterns of norditerpenoids alkaloids levels in tall larkspur (Delphinium barbeyi). Journal of Chemical Ecology 26: 15951607.
  • Rhoades DF. 1979. Evolution of plant chemical defences against herbivory. In: RosenthalGA, HanzenDH, eds. Herbivores: their interaction with secondary metabolites. New York, USA: Academic Press, 354.
  • Salmore AK, Hunter MD. 2001. Environmental and genotypic influences on isoquinoline alkaloid content in Sanguinaria canadensis. Journal of Chemical Ecology 27: 17291747.
  • Sander H, Hartmann T. 1989. Site of synthesis, metabolism and translocation of senecionine N-oxide in cultured roots of Senecio erucifolius. Plant Cell, Tissue and Organ Culture 18: 1931.
  • Schmeller T, Latz-Brûning B, Wink M. 1997. Biochemical activities of berberine, palmatine and sanguinarine mediating chemical defence against microorganisms and herbivores. Phytochemistry 44: 257266.
  • Siegel S. 1956. Nonparametric statistics for the behavioural sciences. New York, USA: McGraw-Hill Co.
  • SPSS Inc. 1998. SPSS Base 8.0 User's Guide. Chicago, IL, USA: SPSS Inc.
  • Steenkamp V, Stewart MJ, Van Der Merwe S, Zuckerman M, Crowther NJ. 2001. The effect of Senecio latifolius a plant used as a South African traditional medicine, on a human hepatoma cell line. Journal of Ethnopharmacology 78: 5158.
  • Steiner AA. 1968. Soilless culture. In: International Potash Institute, ed. The fertilization of protected crops. proceedings of the 6th coll internat potash institute, Berne, Switzerland: International Potash Institute, 324341.
  • Troelstra SR, Wagenaar R, Smant W. 1995. Nitrogen utilization by plant species from acid heathland soils. I. Comparison between nitrate and ammonium nutrition at constant low pH. Journal of Experimental Botany 46: 11031112.
  • Van Dam NM, Van Der Meijden E, Verpoorte R. 1993. Induced responses in three alkaloid-containing plant species. Oecologia 95: 425430.
  • Van Dam NM, Vuister LWM, Bergshoeff C, De Vos H, Van Der Meijden E. 1995a. The ‘raison d’etre of pyrrolizidine alkaloids in Cynoglossum officinale: deterrent effects against generalist herbivores. Journal of Chemical Ecology 21: 507523.
  • Van Dam NM, Witte L, Theuring C, Hartmann T. 1995b. Distribution, biosynthesis and turnover of pyrrolizidine alkaloids in Cynoglossum officinale. Phytochemistry 39: 287292.
  • Van der Meijden E, Van der Waals-Kooi RE. 1979. The population ecology of Senecio jacobaea in a sand dune system. Journal of Ecology 67: 131153.
  • Van Loon JA, Schoonhoven LM. 1999. Specialist deterrent chemoreceptors enable Pieris caterpillars to discriminate between chemically different deterrents. Entomologica Experimentalis et Applicata 91: 2935.
  • Vrieling K, De Boer N. 1999. Host-plant choice and larval growth in the cinnabar moth: do pyrrolizidine alkaloids play a role? Entomologia Experimentalis et Applicata 91: 251257.
  • Vrieling K, De Jong TJ, Klinkhamer PGL, Van Der Meijden E, Van Wijk CAM. 1996. Testing trade-offs among growth, regrowth and antiherbivore defenses in Senecio jacobaea. Entomologia Experimentalis et Applicata 80: 189192.
  • Vrieling K, De Vos H, Van Wijk CAM. 1993. Genetic analysis of the concentrations of pyrrolizidine alkaloids in Senecio jacobaea. Phytochemistry 32: 11411144.
  • Vrieling K, Van Wijk CAM. 1994a. Cost assessment of the production of pyrrolizidine alkaloids in ragwort (Senecio jacobaea L.). Oecologia 97: 541546.
  • Vrieling K, Van Wijk CAM. 1994b. Estimating costs and benefits of the pyrrolizidine alkaloids of Senecio jacobaea under natural conditions. Oikos 70: 449454.
  • Wesselingh RA, Klinkhamer PGL. 1996. Threshold size for vernalization in Senecio jacobaea: Genetic variation and response to artificial selection. Functional Ecology 10: 281288.
  • Windig J. 1993. Intensity of Longitarsus jacobaeae herbivory and mortality of Senecio jacobaea. Journal of Applied Ecology 30: 179186.
  • Wink M, Heinen HJ, Vogt H, Schiebel HM. 1984. Cellular localization of quinolizidine alkaloids by mass spectrometry (LAMMA 1000). Plant Cell Reports 3: 230233.