EFFECTS OF CAFFEINE ON GROWTH AND METAMORPHOSIS OF MOTH FLY TELMATOSCOPUS ALBIPUNCTATUS (DIPTERA, PSYCHODIDAE
- 1 March 1977
- journal article
- research article
- Published by Wiley in Entomologia Experimentalis et Applicata
- Vol. 21 (2) , 174-181
- https://doi.org/10.1111/j.1570-7458.1977.tb02670.x
Abstract
Caffeine causes severe retardation of growth and development and high mortality of larvae Telmatoscopus albipunctatus. In general, sensitivity to caffeine is inversely proportional to the age of the treated larvae. Adults originating from treated larvae show lower fertility. Treatment of pupae results in elongated abdomens, abnormal wings and reduced fertility in adults. Caffeine also affects adversely polytenization of chromosomes. It is suggested that effects on larval growth and polytenization of chromosomes are due to retardation of DNA synthesis. Other possible mechanisms of action of caffeine are discussed.ZUSAMMENFASSUNGWIRKUNGEN VON KOFFEIN AUF WACHSTUM UND METAMORPHOSE DER SCHMETTERLINGSMÜCKE TELMATOSCOPUS ALBIPUNCTATUS (DIPTERA, PSYCHODIDAE)Koffein verursacht starke Verzögerung von Wachstum und Entwicklung sowie hohe Mortalität der Larven von Telmatoscopus albipunctatus. Im allgemeinen ist die Empfindlichkeit gegenüber Koffein umgekehrt proportional zum Alter der behandelten Larven. Adulte, die als Larven damit behandelt wurden, zeigen verminderte Fertilität. Behandlung von Puppen ergibt Adulte mit verlängertem Abdomen, anormalen Flügeln und verminderter Fertilität. Koffein beeinflußt auch die Polytänisierung der Chromosomen ungünstig. Es wird angenommen, daß die Beeinflussung des Larvenwachstums und der Polytänisierung der Chromosomen zurückzuführen ist auf verzögerte DNS‐Synthese. Es werden sodann andere mögliche Mechanismen der Wirkung des Koffeins diskutiert.This publication has 12 references indexed in Scilit:
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