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Antifeedants from pimpinella Monoica

  • D. L. Luthria
  • V. Ramakrishnan
  • A. Banerji
Research Article

Abstract

The crude n-hexane and methanol extracts of the aerial parts of plant, Pimpinella monoica Dalz. (Umbelliferae) showed significant feeding deterrency to Spodopiera litura F. larvae. Phytochemical investigation of these extracts has resulted into the isolation of one furanocoumarin and five biogenetically related furanochromones. Furanocoumarin, isopimpinellin was found to be most active. Furochromones, visnagin and khellin exhibited significant activity while their hydroxymethyl analogues, khellol and ammiol showed moderate activity. α-Hydroxyisopropyldihydrofurochromone, visamminol was found to be least active.

Key Words

Pimpinella monoica isopimpinellin furochromones khellin visnagin antifeedants Spodoptera litura 

Résumé

Les extraits brute de n-hexane et de méthanale à partir des portions aériennes, de la plante Pimpinella monoica Dalz. (Umbelliferae) ont montré un effect phagodissuadants contre la larve Spodoptera litura F. Une recherche phytochimique faits sur ces extraits a eu le résultat d’un dégagement d’un furanocoumarin et de cinq furochromones qui sent biogénétiquement lisée. Furocoumarin, isopimpinellin était la plus actif. Les furochromones, visnagin et khellin ont montré une activité importante, tandis que leurs analogues en methyl-hydroxy kellol et ammiol ont montré une activité moyenne, α-hydroxyisopropyldihydrofurochromone, visamminol était la seine actif.

Mots Clés

Pimpinella monoica furochromones khellin visnagin phagodissuadants Spodoptera litura 

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Copyright information

© ICIPE 1992

Authors and Affiliations

  • D. L. Luthria
    • 1
  • V. Ramakrishnan
    • 1
  • A. Banerji
    • 1
  1. 1.Chemical Ecology Section, Bio-organic DivisionBhabha Atomic Research CentreTrombay, BombayIndia

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