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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
Article

Abstract

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 

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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

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