Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-24T22:32:29.919Z Has data issue: false hasContentIssue false
  • English
  • Français

EFFECT OF HOST TREE ACTIVITY ON THE RATE OF YOLK PROTEIN DEPOSITION IN DENDROCTONUS RUFIPENNIS (COLEOPTERA: SCOLYTIDAE)

Published online by Cambridge University Press:  31 May 2012

T. S. Sahota  and
A. Ibaraki
T. S. Sahota
Affiliation:
Pacific Forest Research Centre, Canadian Forestry Service, Victoria, British Columbia V8Z 1M5
A. Ibaraki
Affiliation:
Pacific Forest Research Centre, Canadian Forestry Service, Victoria, British Columbia V8Z 1M5
Get access Rights & Permissions [Opens in a new window]

Abstract

Comparison of yolk protein deposition rates as inferred from rates of leucine incorporation in ovarial yolk proteins was made between Dendroctonus rufipennis caged on living white spruce trees and freshly cut logs of the same species. Samples coinciding with resin exudation into the beetle galleries by the living tree revealed significant inhibition of this rate as compared with that observed on cut logs. These results constitute a clear example of the effect of a specific event in the tree on the reproductive processes of the adult beetle. Advantages of measuring rate of yolk deposition over counting total oviposition for determining the effect of various factors on reproduction are discussed.

Résumé

La comparison du taux de déposition de vitellus protéiniques, déduit du taux d’incorporation de la leucine dans les vitellus protéiniques de l’ovaire, a été faites entre le Dendroctonus rufipennis encagé sur des épinettes blanches vivantes et sur des billes fraîchement tronçonnées de la même espèce. Lorsque la résine des arbres vivants exuda dans les galeries creusées par le dendroctone, elle inhiba significantivement le dit taux comparativement aux billes tronçonnées. Il y a ici un exemple concret de l’effet d’un évènement spécifique dans l’arbre sur la reproduction du dendroctone adulte. Les auteurs discutent des avantages de mesurer le dit taux plutôt que compter le nombre total d’oeufs pondus pour déterminer l’effet de divers facteurs sur la reproduction.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 12 , December 1979 , pp. 1319 - 1323
Copyright
Copyright © Entomological Society of Canada 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Dyer, E. D. A. 1975. Frontalin attractant in stands infested by the spruce beetle, Dendroctonus rufipennis (Coleoptera: Scolytidae). Can. Ent. 107: 979–988.CrossRefGoogle Scholar
Dyer, E. D. A. and Safranyik, L.. 1977. Assessment of the impact of pheromone-baited trees on a spruce beetle population (Coleoptera: Scolytidae). Can. Ent. 109: 77–80.CrossRefGoogle Scholar
Hanover, J. Q. 1975. Physiology of tree resistance to insects. A. Rev. Ent. 20: 75–95.CrossRefGoogle Scholar
Hughes, P. R. 1973. Dendroctonus: Production of pheromones and related compounds in response to host monoterpenes. Z. angew. Ent. 73: 294–312.CrossRefGoogle Scholar
Lawko, C. M. and Dyer, E. D. A.. 1974. Flight ability of spruce beetles emerging after attacking frontalin baited trees. Canadian Forestry Service, Bi-mon. Res. Notes 30(3): 17.Google Scholar
Mullick, D. B. 1977. The non-specific nature of defense in bark and wood during insect and pathogen attack. pp. 395–441in Loewus, F. A. and Runeckles, V. C. (Eds.), Recent Advances in Phytopathology. Vol. II. Plenum Press, New York.Google Scholar
Rudinsky, J. A. 1966. Scolytid beetles associated with Douglas-fir: response to terpenes. Science 152: 18–19.CrossRefGoogle ScholarPubMed
Sahota, T. S. 1970. Haemolymph and ovarial proteins in the bark beetle, Dendroctonus pseudotsugae in relation to ovarian development. Can. J. Zool. 48: 1307–1312.CrossRefGoogle ScholarPubMed
Sahota, T. S. and Ibaraki, A.. 1973. Yolk deposition in the Douglas-fir bark beetle, Dendroctonus pseudotsugae (Hopk.): the significance of physiological state of oocytes. Can. J. Zool. 51: 659–661.Google Scholar
Sahota, T. S. and Thomson, A. J.. 1979. Temperature induced variation in the rates of reproductive processes in Dendroctonus rufipennis (Coleoptera: Scolytidae): A new approach to detecting changes in population quality. Can. Ent. 111: 1069–1078.Google Scholar
Smith, R. H. 1966. Resin quality as a factor in the resistance of pines to bark beetles. pp. 189–196in Gerhold, H. D., Schreiner, E. J., McDermott, R. E., and Dinieski, J. A. (Eds.), Breeding Pest-Resistant Trees. Pergamon Press, London.CrossRefGoogle Scholar