Journal of Chemical Ecology

, Volume 16, Issue 5, pp 1683–1695 | Cite as

Effect of fungal metabolite peramine and analogs on feeding and development of argentine stem weevil (Listronotus bonariensis)

  • Daryl D. Rowan
  • Jenny J. Dymock
  • Margaret A. Brimble


Peramine, a pyrrolopyrazine alkaloid produced by the fungal endophyte of perennial ryegrassAcremonium lolii, deterred the feeding of both adults and larvae of the graminacious herbivore, the Argentine stem weevil (Listronotus bonariensis), at 0.1 μg/g and 10 μg/g, respectively. In a no-choice test fewer stem weevil larvae fed and developed on diet containing as little as 2 μg/g peramine. The proportion of larvae which did not develop beyond the first instar was higher on diet containing peramine and appeared to be due to a higher proportion of larvae which did not feed. For larvae which fed on the peramine-containing diet, feeding scores and times to pupation were not significantly different from those of controls. A number of simple peramine analogues showed feeding-deterrent activity against adult weevils, indicating the importance of the pyrrolopyrazine ring system of peramine in determining feeding-deterrent activity.

Key Words

Perennial ryegrass Lolium perenne Gramineae Argentine stem weevil Listronotus bonariensis Coleoptera Curculionidae Acremonium lolii endophyte feeding deterrent peramine 


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Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • Daryl D. Rowan
    • 1
  • Jenny J. Dymock
    • 2
  • Margaret A. Brimble
    • 3
  1. 1.Biotechnology DivisionPalmerston NorthNew Zealand
  2. 2.Department of Scientific and Industrial Research]Entomology DivisionPalmerston NorthNew Zealand
  3. 3.Massey UniversityPalmerston NorthNew Zealand

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