Open AccessThe metabolism of aged seeds The formation of polyribosomes in the embryos of germinating rye grains of different viability
Author(s) -
Kazimierz Zalewski
Publication year - 2014
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.1985.036
Subject(s) - polysome , embryo , germination , ribosome , ribosomal rna , rna , biology , cytoplasm , metabolism , protein biosynthesis , botany , microbiology and biotechnology , biochemistry , gene
Changes during seed germination in the cytoplasmic ribosomal fraction, the formation of polysomes and RNA synthesis in rye grain embryos of different age, were studied. Quantitative changes in embryo ribosomes accompanied seed aging. As the viability of the grain decreased, monosomes constituted an increasing proportion of the total ribosome content. The observed fall in RNA synthesis is considered a symptom of the deteriorative processes involved in seed aging