Isolation of Intact Chloroplasts from Euglena gracilis by Zonal Centrifugation
Author(s) -
Aurea C. Vasconcelos,
Marilyn S. Pollack,
Leticia Mendiola,
HansPeter Hoffmann,
D. H. Brown,
C. Price
Publication year - 1971
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.47.2.217
Subject(s) - euglena gracilis , chloroplast , euglena , centrifugation , ribosome , ficoll , differential centrifugation , rubisco , ultrastructure , biochemistry , biology , rna , chemistry , botany , photosynthesis , peripheral blood mononuclear cell , gene , in vitro
Chloroplasts were separated from Euglena gracilis by zonal centrifugation at low speed in density gradients of Ficoll or dextran. The chloroplasts were intact by the criteria of ultrastructure and their content of ribulose diphosphate carboxylase and soluble protein. The chloroplasts also contained ribosomes and ribosomal RNA uncontaminated by the corresponding cytoplasmic particles.
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