Open AccessStructure of the nucleoli in Angiosperms
Author(s) -
Maria Podbielkowska
Publication year - 2015
Publication title -
acta societatis botanicorum poloniae
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 29
eISSN - 2083-9480
pISSN - 0001-6977
DOI - 10.5586/asbp.1971.001
Subject(s) - nucleolus , rna , ground substance , amorphous solid , uranyl , phase contrast microscopy , chemistry , botany , biology , microbiology and biotechnology , biophysics , biochemistry , gene , crystallography , genetics , optics , physics , cytoplasm , ion , connective tissue , organic chemistry
The nucleolus structure in the cells of numerous Angiospermae plants was studied with light microscope. The living material was examined under phase and anoptral contrast. Microscopical observations were also carried out on the material fixed in chrome-formalin or in uranyl-formalin. An occurrence of two structural components of nucleolus was demonstrated: an amorphous ground substance and nucleolonema. Cytochemical analysis have shown that considerable amounts of RNA and acid proteins were located in the amorphous substance while nucleolonema was composed of basic proteins and slight quantities of RNA