Physiology of digestion in mango weevil, Sternochetus gravis (Fabr.) (Curculionidae : Coleoptera)

Authors

  • M Bhubaneshwari Devi Laboratory of Entomology, Department of Zoology, D.M. College of Science, Imphal, India
  • S Noren Singh Department of Statistics, Imphal College Imphal, India.

Keywords:

Sternochetus gravis, hydrogen-ion concentration, digestive enzyme, amylase, maltase, lactase, lipase and invertase.

Abstract

Sternochetus gravis has been proved to be a serious pest of mango fruit in Manipur. The insect during both of its larval and adult stages feed on the fruit pulp where the entire life cycle is completed. Certain physiological parameters of the pest and its food have been revealed significant interaction between them. The hydrogen-ion concentration has been observed to vary from 3.2 to 6.5 in the unripe and ripe fruit pulp and 4.5 to 6.2 in the larval and adult gut respectively. The qualitative estimation of digestive enzymes has revealed the presence of almost all the enzymes in the insect gut namely amylase, maltase, lactase, lipase and invertase to digest the different components of its food. Thus, the pest is host specific and is well adapted both physiologically as well as morphologically inside the growing food.

Downloads

Download data is not yet available.

Author Biographies

M Bhubaneshwari Devi, Laboratory of Entomology, Department of Zoology, D.M. College of Science, Imphal, India

Laboratory of Entomology, Department of Zoology, D.M. College of Science, Imphal, India

S Noren Singh, Department of Statistics, Imphal College Imphal, India.

Department of Statistics, Imphal College Imphal, India.

Published

07-03-2012

How to Cite

Bhubaneshwari Devi, M., and S. N. Singh. “Physiology of Digestion in Mango Weevil, Sternochetus Gravis (Fabr.) (Curculionidae : Coleoptera)”. Journal of Experimental Sciences, vol. 2, no. 12, Mar. 2012, https://updatepublishing.com/journal/index.php/jes/article/view/1900.

Issue

Section

Articles