Abstract
The effects of applying varying closes of an antibiotic to fifth instar larvae of Philosamia ricini on the silk glands were studied. Transaminases were increased by low doses, while RNA accumulation was reduced after administration of tetracycline. The levels of DNA showed little response to treating with antibiotic. However, the incorporation of amino acids into silk proteins was generally increased. The overall effects on the silk gland was reflected by its weight, cocoon weight, quantity of raw silk and quality of silk. All these indices were improved by administration of tetracycline.
Résumé
Les effets d’appliquer un antibiotic, aux larves du 5em stage, sur les glandes a soie furent etudies. Les transaminases augmenterent apris les petites doses, tandis que l’accumulation du RNA diminua epris l’administration du tetracycline. Les niveaux du DNA montrerent de faibles reactions au traitement arec l’antibiotique. L’incorporation des acides amines au proteine de la soie augmentai L’efficacite generale des glandes a soie fut refletee sur leur poids, le poids des cocons, la quantite et la qualite de la soie. Toutes ces indices augmenterent par l’administration du tetracycline.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Agalykov A., Kullyev P., Mamedniyazov O. and Karaev K. (1974) Olivomycin effect of different RNA fractions during metamorphosis of the silkworm. Izv. Akd. Nauk. Turkm. SSR Biol. Nauk. 6, 16–19.
Agalykov A., Kullyev P., Mamedniyazov O. and Zbraskii I. (1975) The effect of antibiotics, actinomycin D and olivemycin on RNA biosynthesis and morphogenesis during metamorphosis of the silkworm Bombyx mori. Izv. Akad. Nauk. Turkm. SSR Ser. Biol. Nauk 12, 24–29.
Block R., Durrum E. and Zweig G. (1958) A Manual of Paper Chromatography and Paper Electrophoresis. 2nd Ed., Academic Press, Inc. Publishers, New York.
Eid M. and Salem M. (1977) Nutritional studies on the silkworm Philosamia ricini Boisd. Bull. Fac. Agric., Cairo University, 28, 391–407.
El-Maasarawy S. (1980) Studies on the haemolymph of Philosamia ricini Boisd. under different conditions. M.Sc. Thesis, Faculty of Agriculture, Cairo University.
Galimova L., Mednikov B. and Noskov V. (1968) Streptomycin induced modification of sericins of the mulberry silkworms. Biokhimiya 33, 999–1003.
Kind P. and King E. (1954) Determination of alkaline phosphatase. J. Clin. Pathol. 7, 322.
Kreysizg E. (1970) International Mathematical Statistics Principles and Methods. Library of Congress Catalogue pp. 70–107.
Mednikov B., Galimova L. and Belozerskii (1970) Patterns of translation mistakes in vivo and in vitro. Biokhimiya 35, 216–223.
Murthy M., Shankaronarayan M. and Sreenivasaya M. (1954) Role of Chloromycetin in the nutrition of the silkworm Bombyx mori. J. Sci. Indust. Res. (India) 13B, 331–335.
Reitman S. and Frankel S. (1957) Cholourimetric method for aspartic and alanine transaminases. Am. J. Clin. Pathol., 28, 56.
Riddiford L., Chen A., Graves B. and Curtis A. (1981) RNA and protein synthesis during the change to pupal commitment of Manduca sexta epidermis. Insect Biochem. 11, 121–127.
Saxena C. and Srivastava B. (1960) Role of certain antibiotics on the growth and reproductive performance of silkworms Bombyx mori. Proc. Natl. Acad. Sci. India Sect. B. 30, 115–119.
Scott W. and Tomkins G. (1975) The use of inhibitors in the study of hormone mechanisms in cell culture. Meth. Enz. 40, 273–292.
Shibko S., Koivistoenen P., Tratnyek C, Newhall A. and Freidman L. (1967) Quantitative separation and determination of RNA and DNA in certain fungi. Anal. Biochem. 19, 514–528.
Shigematsu H., Kurata K. and Takeshita H. (1978) Nucleic acids accumulation of silk gland of Bombyx mori in relation to silk protein. Comp. Biochem. Physiol. 61, 237–242.
Shyamala M., Sharada K., Bhat J. (1960) Chloromycetin in the nutrition of the silkworm Bombyx mori: II- Influence on digestion and utilization of protein, fat and minerals. J. Insect Physiol. 4, 229–234.
Thayer D. (1973) Effect of antibiotics and antimalaria on free amino acids of Aedes aegypti. J. Med. Entomol. 10, 57–62.
Verma S. and Kushwaha K. (1971) Effect of four tetracycline antibiotics on the growth of silkworm Bombyx mori. Indian J. Agric. Sci. 41, 1009–1017.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Eid, M.A.A., El-Nakkadi, A.N. & Saleh, M.A. Functional Adaptation of Silk Glands After Administration of Antibiotic to Larvae of Philosamia ricini (BOISD). Int J Trop Insect Sci 10, 139–143 (1989). https://doi.org/10.1017/S1742758400010286
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1017/S1742758400010286