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Eucalyptus oil odour treatment effects on biochemistry of some tissues of female nymphs/adults of Dysdercus koenigii

Published online by Cambridge University Press:  19 September 2011

Sudhendu K. Srivastava  and
S. S. Krishna
Sudhendu K. Srivastava
Affiliation:
Entomology Laboratory, Department of Zoology, University of Gorakhpur Gorakhpur-273009 (UP), India
S. S. Krishna*
Affiliation:
Entomology Laboratory, Department of Zoology, University of Gorakhpur Gorakhpur-273009 (UP), India
*
* To whom correspondence and request for reprint should be made.
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Abstract

Eucalyptus oil vapour treatment provided to Dysdercus koenigii female individuals as virgin adults or during their fifth instar nymphal life led to a fall in the total protein content accompanied by a rise in the free amino acid titre of haemolymph and fat body. However, the level of total lipids in these two tissues under such condition varied in that a decrease and an increase were recorded in haemolymph and fat body respectively. In the ovary of this adult female, the amounts of total proteins and lipids were low, while the value for total free amino acids was high. The implications of all these findings are discussed chiefly in relation to transport, synthesis and degradation of biochemical constituents in the three tested tissues.

Résumé

Le traitement à la vapeur d'huile d'Eucalyptus de femelles vierges et de nymphes de 5e stade de Dysdercus koenigii a provoqué une chute du taux protéique total de l'hémolymphe et du corps adipeux suivi d'une augmentation du taux d'acides aminés libres dans ces derniers. Cependant le taux de lipide total a varié en baisse et en hausse respectivement dans l'hémolymphe et le corps adipeux dans les conditions sus indiquées. Dans les ovaires des femelles adultes, le taux de protéines et de lipides totaux était faible, alors que celui des acides aminés libres était élevée. Les implications que peuvent avoir ces recherches sont discutées surtout en relation avec le transport, la synthèse et la dégradation des constituents biochimiques des 3 tissus étudiés.

Keywords

Eucalyptus oil odourDysdercus koenigiifemale nymphs/adultshaemolymphfat bodyovarybiochemistryOdeur d'huile d'EucalyptusDysdercus koenigiinymphes femelles/adulteshémolymphecorps adipeux ovairebiochimie
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 13 , Issue 1 , February 1992 , pp. 145 - 149
Copyright
Copyright © ICIPE 1992

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References

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