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polyphenisme

International Journal of Tropical Insect Science (1)

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Pattern of Protein, Glycogen and Trehalose During Development of Polyphenic Forms in the Aphid Lipaphis erysimi (Kalt.) (Aphididae:Hemiptera)
Pushpinder J. Rup, Satwinder K. Sohal
Journal:

Insect Science and Its Application / Volume 9 / Issue 3 / June 1988

Published online by Cambridge University Press:

19 September 2011, pp. 335-338

Print publication:

June 1988
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Polyphenism is a common feature in the mustard aphid, Lipaphis erysimi (Kalt.) in tropical countries. The function related changes in basic biochemical pool are reported during development of polyphenic forms. A gradual decrease in the protein content in this aphid was recorded, as the nymphs advanced in their instar number and reached adult stage. However, the protein content was significantly lower in the apterous forms as compared to alate. The number, density and mobility of protein bands varied as the nymphs passed through different instars and the number of bands was more in alate forms. The glycogen and trehalose contents showed a decrease upto the third instar and showed an increase in the fourth instar, but again declined in the adults of both the phases.