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Quantitative patterns of some hydrolytic enzymes during the development of polyphenic forms of Lipaphis erysimi (Kalt.) (Aphididae)

Published online by Cambridge University Press:  19 September 2011

Pushpinder J. Rup
Affiliation:
School of Life Sciences, Guru Nanak Dev University, Amritsar-143005, India
Parvinder K. Kalra
Affiliation:
School of Life Sciences, Guru Nanak Dev University, Amritsar-143005, India
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Abstract

The development of phase phenism in L. erysimi involved function related changes in the activity of hydrolytic enzymes. The esterase activity decreased from first to third instar and then increased in the fourth instar and adults. The decrease in the third and the increase from fourth instar up to adults was more in alatae than apterae. The acid phosphatase activity was maximum in second instar. It decreased in the third and then increased again in the fourth instar and adults. The increase was more in alatae than in apterae. The alkaline phosphatase showed a similar trend but was in contrast to acid phosphatase and showed low activity in alatae as compared to apterae.

Résumé

Le developpement de la phase du phenisme chez Lipaphis erysimi involvant des fonctions qui sont en relation avec les changements des activités des enzymes hydrolitiques fut analysé. L'activité de l'esterase decrût du 1 er au 3 ème et puis accrût du 4 ème stage larvaire au stage adulte. Cette activité ètait importante chez les aphides ayant des ailes que ceux sans ailes. L'activite de la phophatase (acide) etait maximale chez les larves du second stage larvaire, elle decrut au 3 ème et accrut au 4ème stage larvaire et les adultes. L'accroissement de cette enzyme fut élève chez les aphides avec ailes que chez les sans ailes. La phosphatase (alcaline) montra une tendance similaire mais en contrast a la phosphatase (acide) son activité etait plus faible chez les aphides avec ailes que chez ceux sans ailes.

Type
Research Articles
Copyright
Copyright © ICIPE 1989

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References

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