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Synthesis and transport of RNA in the salivary glands of some bugs (Heteroptera)

Published online by Cambridge University Press:  19 September 2011

P. R. Yadav  and
Dinesh Kumar
P. R. Yadav
Affiliation:
Silkworm Seed Technology Laboratory, Kodathi, Carmelram post, Bangalore-560035, India
Dinesh Kumar
Affiliation:
Department of Zoology, Banaras Hindu University, Varanasi-221005, India
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Abstract

Autoradiographic studies using 3H uridine in the salivary glands of three bugs, Lethocerus indicus, Laccotrephes rubra and Antilochus coqueberti show that the nuclei play an important role in contributing RNA. The labelled materials are seen to move into the lumen from the epithelia. RNA shows a tendency to accumulate in the lumen with ascending incubation periods. This behaviour in conjunction with its nucleolar genesis indicates its nature as rRNA. It is also believed that RNA might conjugate with some of the protein available in the lumen to produce RNP.

Résumé

Des etudes autoradiographiques des glandes salivaires de 3 espèces de punaises, Lethocerus indicus, Laccotrephes rubra et Antilochus coqueberti, a l'aide de l'uridine radioactive (3H) montrent que les nuclei jouent un rôle primordial dans la synthèse de TARN. Le matériel radioactif semble se déplacer de l'épithélium vers la lumière. L' ARN montrerait une tendance à s'accumuler dans la lumière au fur et à mesure que se prolongent les périodes d'incubation. Ce fait, en conjunction avec l'origine nucléique de l'ARN confirme que l'ARN en question ici est d'origine ribosomal. On suppose aussi que l'ARN se combinerait avec certaines protéines présentes dans la lumière pour former des PRN.

Keywords

Salivary glandbugLethocerus indicusLaccotrephes rubraAntilochus coquebertiRNA metabolismautoradiographyd3HuridineGlande salivairepunaiseLethocerus indicusLaccotrephes rubraAntilochus coquebertimétabolisme de l'ARNautoradiographieuridine 3H
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 14 , Issue 4 , August 1993 , pp. 411 - 418
Copyright
Copyright © ICIPE 1993

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