Correlated changes of Balbiani ring expansion and secretory protein synthesis in larval salivary glands of Chironomus tentans.

Chromosoma ·Vol. 58 ·No. 2 ·1976-10-28 ·Pages 137-53

Pankow W, Lezzi M, Holderegger-Mähling I

Abstract

Salivary glands of various stages of the last larval instar of Chironomus tentans were quantitatively analyzed with respect to the expansion of their Balbiani rings (B1, B2, B3) by a fast green staining procedure as well as to the rate of synthesis of their secretory proteins (S1, S2, S3) by a scintillation counting procedure of electrophoretic fractions. The extent of expansion of B1, B2 and B3 correlates positively with the rate of synthesis of S3, S2 and S1, respectively. With B1 and S3 these parameters undergo a parallel and developmentally specific change being rather depressed in intermolt, and particularly in diapausing animals.

MeSH Terms

Animals Chromosomes Diptera/metabolism Ecdysone/pharmacology Salivary Glands/metabolism,ultrastructure Salivary Proteins and Peptides/biosynthesis

Chemicals

Salivary Proteins and Peptides Ecdysone

Authors & Affiliations

3 authors, click to expand affiliations / ORCID

Pankow W

Lezzi M

Holderegger-Mähling I

References (15)

15 references, click to expand

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Article Info

Journal

Chromosoma

Abbr.

Chromosoma

ISSN

0009-5915

DOI

10.1007/BF00701355

Published

1976-10-28

Pages

137-53

Language

English

Region

Austria

NLM ID

2985138R

Subset

External Links

PubMed source DOI: 10.1007/BF00701355 View journal details

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Correlated changes of Balbiani ring expansion and secretory protein synthesis in larval salivary glands of Chironomus tentans.

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