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Mol. Cells 2004; 17(1): 140-143

Published online February 29, 2004

© The Korean Society for Molecular and Cellular Biology

Vesicular Tubular-shaped Particles Transported from Nurse Cells to Oocytes in Drosophila Egg Chambers

Changsoo Kim

Abstract

In Drosophila, the embryonic axes are specified during oogenesis by the asymmetric localization of certain mRNAs in the oocytes. In this process many of the mRNAs are synthesized in nurse cells and transported through cytoplasmic bridges called ring canals into the oocytes. However, the nature of the transporting particles and the route of their passage have not been not well defined. Here, I describe the ultrastructure of particles moving from nurse cells to oocytes. Immunoelectron microscopic observation with Mab27E7 monoclonal antibody revealed vesicular-tubular shaped (VTS) particles that appear to migrate to the cortical area and are then transported into the oocytes.

Keywords Drosophila; Nurse; Oocyte; Transport; Tubular; Vesicular.

Article

Communication

Mol. Cells 2004; 17(1): 140-143

Published online February 29, 2004

Copyright © The Korean Society for Molecular and Cellular Biology.

Vesicular Tubular-shaped Particles Transported from Nurse Cells to Oocytes in Drosophila Egg Chambers

Changsoo Kim

Abstract

In Drosophila, the embryonic axes are specified during oogenesis by the asymmetric localization of certain mRNAs in the oocytes. In this process many of the mRNAs are synthesized in nurse cells and transported through cytoplasmic bridges called ring canals into the oocytes. However, the nature of the transporting particles and the route of their passage have not been not well defined. Here, I describe the ultrastructure of particles moving from nurse cells to oocytes. Immunoelectron microscopic observation with Mab27E7 monoclonal antibody revealed vesicular-tubular shaped (VTS) particles that appear to migrate to the cortical area and are then transported into the oocytes.

Keywords: Drosophila, Nurse, Oocyte, Transport, Tubular, Vesicular.

Mol. Cells
Sep 30, 2022 Vol.45 No.9, pp. 603~672
COVER PICTURE
The Target of Rapamycin Complex (TORC) is a central regulatory hub in eukaryotes, which is well conserved in diverse plant species, including tomato (Solanum lycopersicum). Inhibition of TORC genes (SlTOR, SlLST8, and SlRAPTOR) by VIGS (virus-induced gene silencing) results in early fruit ripening in tomato. The red/ orange tomatoes are early-ripened TORC-silenced fruits, while the green tomato is a control fruit. Top, left, control fruit (TRV2-myc); top, right, TRV2-SlLST8; bottom, left, TRV2-SlTOR; bottom, right, TRV2-SlRAPTOR(Choi et al., pp. 660-672).

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