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Relation of ribonucleic acid to the photosynthetic apparatus in Euglena gracilis |
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| Authors: | BRAWERMAN G CHARGAFF E |
| Affiliation: | 1. Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University School of Medicine, Nashville, Tenn;2. Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tenn;4. Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tenn;6. Division of Diabetes, Endocrinology, and Metabolism, Vanderbilt University School of Medicine, Nashville, Tenn;7. Vanderbilt Brain Institute, Vanderbilt University School of Medicine, Nashville, Tenn;3. Department of Biomedical Sciences and Center for Brain Repair, Florida State University, Tallahassee, Fla;5. Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, Tenn |
| Abstract: | The ribonucleic acids of green and etiolated Euglena gracilis cells show small but definite differences in their nucleotide distribution. The green organisms have a higher proportion of adenylic and uridylic acids and a lower content of cytidylic and guanylic acids. Permanently bleached cells resemble the etiolated organisms in their ribonucleic acid composition.The differences in the ribonucleic acids of the green and etiolated oragnisms are probably related to the differenced in structure and metabolism of the two types of cells.Two additional nucleotides are present in small amounts in the ribonucleic acid of Euglena gracilis. One of them is probably identical with a nucleotide recently found in the ribonucleic acids from other organisms and the second one is unknown. |
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