This article describes a new organelle found in the cytoplasm of the growth stage fish oocytes. In particular, we describe its organization at the morphological level and investigate its composition by different cytochemical and immunocytochemical approaches with both light and electron microscope. The conclusion is that the body is a peculiar protein scaffold functioning as a temporary trap for the storage of rRNA in the mid to late growth stage oocytes. Its presence would be related to the reorganization of the mass of amplified rDNA in micronucleoli and to the consequent temporary stop in the rRNA synthesis.
A new site of temporary storage of rRNA in O. mykiss previtellogenic oocytes / Fusco, S; Filosa, Silvana; Iacoviello, R; Indolfi, S; Tammaro, Stefania; Motta, CHIARA MARIA. - In: MOLECULAR REPRODUCTION AND DEVELOPMENT. - ISSN 1040-452X. - STAMPA. - 56:(2000), pp. 198-206.
A new site of temporary storage of rRNA in O. mykiss previtellogenic oocytes.
FILOSA, SILVANA;TAMMARO, STEFANIA;MOTTA, CHIARA MARIA
2000
Abstract
This article describes a new organelle found in the cytoplasm of the growth stage fish oocytes. In particular, we describe its organization at the morphological level and investigate its composition by different cytochemical and immunocytochemical approaches with both light and electron microscope. The conclusion is that the body is a peculiar protein scaffold functioning as a temporary trap for the storage of rRNA in the mid to late growth stage oocytes. Its presence would be related to the reorganization of the mass of amplified rDNA in micronucleoli and to the consequent temporary stop in the rRNA synthesis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.