Association of D-RNA with Polyribosomes in the Soybean Root
Author(s) -
ChingYu Lin,
Joe L. Key,
C. E. Bracker
Publication year - 1966
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.41.6.976
Subject(s) - polysome , ribosome , ribonuclease , rna , messenger rna , biochemistry , sucrose , biology , chemistry , gene
Ribosomes from soybean root tips were shown to consist of about 75% polyribosomes based on size distribution on sucrose gradients. Electronmicrographs showed the presence of ribosome clusters in normal preparations and only monomers and dimers in ribonuclease-treated preparations. The polyribosome preparations, but not single ribosomes, showed good in vitro amino acid incorporating activity.D-RNA was associated with the ribosome preparations, and preferentially in the polyribosome structure. It is suggested that at least a part of the soybean D-RNA represents a class of messenger RNA.
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