Abstract
The sesquiterpene lactones, burrodin, confertiflorin. desacetyl-confertiflorin, dihydroparthenolide, parthenin, and 7α-hydroxy-3-desoxyzaluzanin C, and the sesquiterpene ester guayulin A were assayed at concentrations of 1, 10, and 100 μM for effects on seed germination of 16 dicot and nine monocot species. Six of the dicot and two of the monocot species were affected by one or more of these compounds. Germination was both inhibited and promoted, depending on the compound and the specific species or cultivars, at concentrations as low as 1 μM. For example, guayulin A, which promoted the germination of lettuce at all concentrations tested, inhibited the germination of tomato. Confertiflorin stimulated germination of the lettuce cultivar Grand Rapids at 1 μM, but inhibited germination of a light-sensitive cultivar at all concentrations tested.
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References
Bradow, J.M. 1985. Germination regulation byAmaranthus palmeri andAmbrosia artemisiifolia.A.C.S. Symp. Ser. 268:285–299.
Bradow, J.M., Connick, J.W. Jr., andPepperman, A.B. 1988. Comparison of the seed germination effects of synthetic analogs of strigol, gibberellic acid, cytokinins and other plant growth regulators.J. Plant Growth Regul. 7(4):227–239.
Del Amo, S., andAnaya, A.L. 1978. Effect of some sesquiterpenic lactones on the growth of certain secondary tropical species.J. Chem. Ecol. 4:305–313.
Duke, S.O. 1986. Naturally occurring chemical compounds as herbicides.Rev. Weed Sci. 2:15–44.
Fischer, N.H., andMabry, T.J. 1967. New pseudoguainolides fromAmbrosia confertiflorin DC.Tetrahedron 23:2529–2538.
Fischer, N.H., andQuijano, L. 1985. Allelopathic agents from common weeds.A.C.S. Symp. Ser. 268:133–147.
Fischer, N.H., Wiley, R.A., Lin, H.N., Karimian, K., andPolitz, S.M. 1975. New melampolide sesquiterpene lactones fromMelampodium leucanthum.Phytochemistry 14:2241–2245.
Fischer, N.H., Wu-Shih, Y.F., Chiari, G., Fronczek, F.R., andWatkins, S.F. 1981. Molecular structure of acis-decalin-type eudesmanolide and its formation from a guaianolide-1(10)-epoxide.J. Nat. Prod. 44:104–110.
Fronczek, F.R., Vargas, D., andFischer, N.H. 1984. The molecular structure of 7α-hydroxy-3-desoxyzaluzanin C, a molluscicidal sesquiterpene lactone.J. Nat. Prod. 47:1036–1039.
Kanchan, S.D., andJayachandra. 1980. Allelopathic effects ofParthenium hysterophorus L. Part IV. Identification of Inhibitors.Plant Soil 55:67–75.
McCahon, C.B., Kelsey, R.G., Sheridan, R.P., andShafizadeh, F. 1973. Physioiogical effects of compounds extracted from sagebrush.Bull. Torrey Bot. Club 100:23–28.
Muller, C.H. 1969. Allelopathy as a factor in ecological process.Vegetatio 18:348–357.
Picman, A.K. 1986. Biological activities of sesquiterpene lactones.Biochem. Syst. Ecol. 14:255–281.
Seaman, F.C. 1976. A comparative phytochemical study of Sonoran desert species ofAmbrosia (Asteraceae). PhD dissertation. University of Texas, Austin. 213 pp.
Sokal, R.R., andRohlf, F.J. 1981. Biometry, 2nd ed. W.H. Freeman, San Francisco.
Spencer, G.F., Wolf, R.B., andWeisleder, D. 1984. Germination and growth inhibitory sesquiterpenes fromIva axillaris seeds.J. Nat. Prod. 47:730–732.
Steel, R.G.D., andTorrie, J.H. 1980. Principles and Procedures of Statistics. McGraw-Hill, New York.
Stevens, K.L., andMerrill, G.B. 1985. Sesquiterpene lactones and allelochemicals fromCentaurea species.A.C.S. Symp. Ser. 268:83–98.
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Fischer, N.H., Weidenhamer, J.D. & Bradow, J.M. Inhibition and promotion of germination by several sesquiterpenes. J Chem Ecol 15, 1785–1793 (1989). https://doi.org/10.1007/BF01012266
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DOI: https://doi.org/10.1007/BF01012266