Patterns of haemolymph vitellogenin and ovarian vitellin in the German cockroach, and the role of Juvenile Hormone
作者:
DAVID MARTÍN,
MARIA‐DOLORS PIULACHS,
XAVIER BELLÉS,
期刊:
Physiological Entomology
(WILEY Available online 1995)
卷期:
Volume 20,
issue 1
页码: 59-65
ISSN:0307-6962
年代: 1995
DOI:10.1111/j.1365-3032.1995.tb00801.x
出版商: Blackwell Publishing Ltd
关键词: Vitellogenesis;vitellogenin;vitellin;Juvenile Hormone;fat body;Blattella germanica
数据来源: WILEY
摘要:
Abstract.The concentrations of fat body and haemolymph vitellogenin and ovarian vitellin during the first gonadotropic cycle of the cockroachBlattella germanica(L.) (Dictyoptera, Blattellidae) have been studied. For these purposes, a polyclonal antibody againstB. germanicavitellogenin and vitellin has been obtained, and an ELISA to quantify these proteins has been developed. Ovarian vitellin levels follow a pattern which parallels those of basal oocyte growth and Juvenile Hormone production by the corpora allata. This suggests that Juvenile Hormone regulates vitellogenin uptake into oocytes. Fat body and haemolymph vitellogenin levels give cyclic and parallel patterns. However, the cycle of Juvenile Hormone appears delayed with respect to that of vitellogenin. We suggest that the production of Juvenile Hormone, although cyclic in profile, does not modulate alone the cycle of vitellogenin. At least a supplementary mechanism, apparently independent of Juvenile Hormone, may be involved in the decline of vitellogenin production at the end of the vitellogenic cycle.
点击下载:
PDF
(688KB)
返 回