Journal of Chemical Ecology

, Volume 20, Issue 8, pp 1885–1892 | Cite as

Seed germination and growth inhibitory cadinenes fromEupatorium adenophorum spreng

  • Narayan C. Baruah
  • Jadab C. Sarma
  • Soneswar Sarma
  • Ram P. Sharma


Chloroform extract of the aerial parts ofEupatorium adenophorum Spreng was fractionated and examined for growth inhibition. Bioassay-directed fractions of the plant materials afforded three known cadinenes and β-sitosterol. The effects of different fractions as well as isolated cadinenes were determined usingAllium cepa, Raphanus sativus, andCucumis sativus seeds. Three-day exposure to these cadinenes significantly inhibited germination and seedling growth of all three assay seeds. The degree of inhibition was dependent upon seed species and the concentrations of the compounds tested. Cadinene(1) was found to be more inhibitory to the seeds tested and the activity of the cadinene(3) was less than that of(1) and(4).

Key Words

Eupatorium adenophorum Asteraceae cadinene allelopathy germination inhibitors Allium cepa Raphanus sativus Cucumis sativus 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Akhtar, N., Nagui, H.H., andHussain, F. 1978. Biochemical inhibition (allelopathy) exhibited byCenchrus ciliaris L. andChrysopogan ancheri (Bioss) Staff.Pak. J. For. 28:194–200.Google Scholar
  2. Bradow, J.M. 1985. Germination regulation byAmaranthus palmeri andAmbrosia artemisiifolia, pp. 285–299, in A.C. Thomson (ed.). The Chemistry of Allelopathy: Biochemical Interactions Among Plants. ACS Symposium Series 268. American Chemical Society, Washington, D.C.Google Scholar
  3. Chen, P.K., andLeather, G.R. 1990. Plant growth Regulatory activities of artemisinin and its related compounds.J. Chem. Ecol. 16(6):1867–1876.Google Scholar
  4. Cutler, H.G. (ed.). 1988. Biologically Active Natural Products: Potential Use in Agriculture. American Chemical Society, Washington, D.C., p. 483.Google Scholar
  5. Duke, S.O., Vaughan, K.C., Croom, E.M., andElsohly, H.N. 1987. Artemisinin, a constituent of annual wormwood (Artemisia annua), is a selective phytotoxin.Weed Sci. 35:499–505.Google Scholar
  6. Duncan, D.E. 1955. Multiple range test.Biometrics 11:1–42.Google Scholar
  7. Jha, P.K., andYadava, M.K. 1985. Allelopathic potentiality ofEupatorium adenophorum Spreng, p. 1287in Abstracts of papers, Annual Conference of Indian Society of Weed Science, 47, Tribhuban University, Kirtibur, Kathmandu, Nepal, Weed Abstract 35(4). 1287.Google Scholar
  8. Kalsi, P.S., Arora, G.S., andGhulati, R.S. 1979. New antipodal terpene alcohols from vetiver oil.Phytochemistry. 18:1223–1224.Google Scholar
  9. Manandhar, N.P. 1991. Medicinal plant-lore of Tamang tribe of Kabhrepalanchok District, Nepal.Econ. Bot. 45:58–71.Google Scholar
  10. Proksch, P., Wrayo, V., Isman, B.M., andRahans, I. 1990. Ontogenetic variation of biologically active natural products inAgeratina adenophora.Phytochemistry 29:453–457.Google Scholar
  11. Rice, E.L. 1984. Allelopathy, Academic Press, New York.Google Scholar
  12. Shukla, V.S., Baruah, N.C., Chowdhury, P.K., Sharma, R.P., Bordoloi, M.J., andRychlewska, U. 1986. Absolute stereochemistry of cadinenes forEupatorium trapezoideum.Tetrahedron 42:1157–1167.Google Scholar
  13. Talwar, K.K., Singh, I.P., andKalsi, P.S. 1992. A sesquiterpenoid with plant growth regulating activity fromSaussurea lappa.Phytochemistry 31:336–338.Google Scholar
  14. Tripathi, R.S., Singh, R.S., andRai, J.P.N. 1981. Allelopathic potential ofEupatorium adenophorum, a dominant ruderal weed of Meghalaya.Proc. Indian Nat. Sci. Acad. 47:458–465.Google Scholar
  15. Whittaker, R.H. 1971. The chemistry of communities.In Biochemical Interactions among Plants. National Academy of Science, Washington, D.C.Google Scholar

Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • Narayan C. Baruah
    • 1
  • Jadab C. Sarma
    • 1
  • Soneswar Sarma
    • 2
  • Ram P. Sharma
    • 3
  1. 1.Natural Products Chemistry DivisionRegional Research Laboratory JorhatAssamIndia
  2. 2.Department of BiotechnologyGauhati UniversityGuwahatiIndia
  3. 3.Phytochemistry DivisionCentral Institute of Medicinal and Aromatic Plants (CIMAP)LucknowIndia

Personalised recommendations