Structural Features of the Nucleolus in the Mouse Germinal Vesicle Oocyte Revealed by AFM, SEM, and ToF-SIMS


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Abstract

The structural organization of the biological material in the nucleoli (Nucleolus-Like Bodies (NLBs)) in mouse GV oocytes has been studied with atomic force microscopy (AFM), scanning electron microscopy (SEM), and time-of-flight secondary ion mass spectrometry (ToF-SIMS). Experimental samples are prepared by quick plunge freezing, followed by freeze-drying, embedding in Epon epoxy resin, and sectioning with a microtome. The biological material in the NLBs is found to be organized as a domain structure of densely packed granules with sizes from tenths of a micron to a micron.

About the authors

A. A. Astafiev

Semenov Institute of Chemical Physics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Moscow, 119991

A. A. Gulin

Semenov Institute of Chemical Physics; Department of Chemistry

Author for correspondence.
Email: aleksandr.gulin@phystech.edu
Russian Federation, Moscow, 119991; Moscow, 119991

A. A. Osychenko

Semenov Institute of Chemical Physics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Moscow, 119991

A. E. Solodina

Semenov Institute of Chemical Physics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Moscow, 119991

M. S. Syrchina

Semenov Institute of Chemical Physics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Moscow, 119991

A. A. Titov

Semenov Institute of Chemical Physics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Moscow, 119991

A. M. Shakhov

Semenov Institute of Chemical Physics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Moscow, 119991

A. G. Pogorelov

Institute of Theoretical and Experimental Biophysics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Pushchino, Moscow oblast, 142290

V. N. Pogorelova

Institute of Theoretical and Experimental Biophysics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Pushchino, Moscow oblast, 142290

A. I. Panait

Institute of Theoretical and Experimental Biophysics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Pushchino, Moscow oblast, 142290

V. A. Nadtochenko

Semenov Institute of Chemical Physics; Department of Chemistry; Institute of Problems of Chemical Physics

Email: aleksandr.gulin@phystech.edu
Russian Federation, Moscow, 119991; Moscow, 119991; Chernogolovka, Moscow oblast, 142432

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