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Synthesis and Transport of RNA in the Salivary Glands of Some Bugs (Heteroptera)

  • P. R. Yadav
  • Dinesh Kumar
Research Article

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.

Key Words

Salivary gland bug Lethocerus indicus Laccotrephes rubra Antilochus coqueberti RNA metabolism autoradiography 3H uridine 

Résumé

Desetudes 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 l’ARN. Le matériel radioactif semble se déplacer de i’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 conjonction 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.

Mots Clés

Glande salivaire punaise Lethocerus indicus Laccotrephes rubra Antilochus coqueberti métabolisme de l’ARN autoradiographie uridine 3

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Copyright information

© ICIPE 1993

Authors and Affiliations

  • P. R. Yadav
    • 1
  • Dinesh Kumar
    • 2
  1. 1.Silkworm Seed Technology Laboratory, KodathiBangaloreIndia
  2. 2.Department of ZoologyBanaras Hindu UniversityVaranasiIndia

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