Summary
Ribosome preparations from several species of flowering plant were found to contain ribonuclease. It was predominantly latent in ionic conditions which maintained the integrity of the ribosomes but was activated by agents which disrupted ribosome structure by chelating their divalent cations. The ribonuclease was not a structural component of the ribosomes but was preferentially adsorbed by them upon disruption of cells. Adsorption took place onto both large and small ribosomal subunits, and onto monosomes and polysomes. These results are discussed in relation to possible mechanisms for the breakdown of ribosomal RNA in vivo.
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References
Acton, G. J.: Phytochrome control of the level of extractable ribonuclease activity in etiolated hypocotyls. Nature (Lond.) New Biol. 236, 255–256 (1972)
Acton, G. J., Lewington, R. J., Myers, A.: The effect of light upon ribonuclease activity of Lupinus albus hypocotyls. Biochim. biophs. Acta (Amst.) 204, 144–155 (1970)
Beevers, H., Stiller, M. L., Butt, V. S.: Metabolism of the organic acids. In: Plant physiology, a treatise, vol. IVB, p. 119–262 (F. C. Steward, ed.). New York and London: Acad. Press 1966
Breen, M. D., Whitehead, E. I., Kenefick, D. G.: Requirements for the extraction of polyribosomes from barley tissue. Plant Physiol. 49, 733–739 (1971)
Cammarano, P., Romeo, A., Gentile, M., Felsani, A., Gaulerzi, C.: Size heterogeneity of the large ribosomal subunits and conservation of the small subunits in eucaryote evolution. Biochim. biophys. Acta (Amst.) 281, 597–624 (1972)
Davies, D. D.: Control of and by pH. In: Rate control of biological processes. Symp. Soc. exp. Biol. 27, 513–529 (1973)
Drawert, H.: Vitalfärbung und Vitalfluorochromierung pflanzlicher Gewebe. Protoplasmatologia 11, D3, 516–517 (1968)
Dyer, T. A., Osborne, D. J.: Leaf nucleic acids. II. Metabolism during senescence and the effect of kinetin. J. exp. Bot. 22, 552–560 (1971)
Egami, F., Takahashi, K., Uchida, T.: Ribonucleases in Taka-Diastase: properties, chemical nature, and applications. In: Progress in nucleic acid research and molecular biology, p. 59–101 (Davidson, J. N., Cohn, W. E., eds.) New York and London: Acad. Press 1964
Gagnon, C., de Lamirande, G.: Autodegradation of RNA of plant cell ribosomes. Arch. Biochem. Biophys. 150, 573–577 (1972)
Godson, G. N., Cox, R. A.: Structure of Escherichia coli ribosomes: effect of ribonuclease on the 30S and 50S subunits. Biochim. biophys. Acta (Amst.) 204, 489–501 (1970)
Hamilton, M. G., Ruth, M. E.: The dissociation of rat liver ribosomes by ethylenediaminetetraacetic acid; molecular weights, chemical composition, and buoyant densities of the subunits. Biochemistry 8, 851–856 (1969)
Hsiao, T. C.: Ribonuclease associated with ribosomes of Zea mays. Plant Physiol. 43, 1355–1361 (1968)
Johnston, F. B., Stern, H.: Mass isolation of viable wheat embryos. Nature (Lond.) 179, 160–161 (1957)
Loening, U. E.: The fractionation of high-molecular-weight ribonucleic acid by polyacrylamide-gel electrophoresis. Biochem. J. 102, 251–259 (1967)
Loening, U. E.: The determination of the molecular weight of ribonucleic acid by polyacrylamide-gel electrophoresis. Biochem. J. 113, 131–138 (1969)
Matile, Ph.: Aleurone vacuoles as lysosomes. Z. Pflanzenphysiol. 58, 365–368 (1968)
Matile, Ph., Winkenbach, F.: Function of lysosomes and lysosomal enzymes in the senescing corolla of the morning glory (Ipomoea purpurea). J. exp. Bot. 22, 759–771 (1971)
Parish, J. H., Kirby, K. S.: Reagents which reduce interactions between ribosomal RNA and rapidly labelled RNA from rat liver. Biochim. biophys. Acta (Amst.) 129, 554–562 (1966)
Payne, E. S., Boulter, D., Brownrigg, A., Lonsdale, D., Yarwood, A., Yarwood, J. N.: A polyuridylic acid-directed cell-free system from 60 day-old developing seeds of Vicia faba. Phytochemistry 10, 2293–2298 (1971)
Payne, P. I., Boulter, D.: Katabolism of plant cytoplasmic ribosomes. RNA breakdown in the senescent cotyledons of germinating broad bean seedlings. Planta (Berl.) 117, 251–258 (1974)
Payne, P. I., Loening, U. E.: Ribosome breakdown accompanying the isolation of pea root microsomes. An analysis by polyacrylamide gel electrophoresis. Biochim. biophys. Acta (Amst.) 224, 128–135 (1970)
Penon, P., Cecchini, J., Miassod, R., Ricard, J., Teissere, M., Pinna, M.: Peroxidases associated with lentil root ribosomes. Phytochem. 9, 73–86 (1970)
Pitt, D., Galpin, M.: Isolation and properties of lysosomes from dark-grown potato shoots. Planta (Berl.) 109, 233–258 (1973)
Roberts, B. E., Paterson, B. M.: Efficient translation of tobacco mosaic virus RNA and rabbit globin 9S RNA in a cell-free system from commercial wheat germ. Proc. nat. Acad. Sci. (Wash.) 70, 2330–2334 (1973)
Roberts, B. E., Payne, P. I., Osborne, D. J.: Protein synthesis and the viability of rye grains. Loss of activity of protein-synthesizing systems in vitro associated with a loss of viability. Biochem. J. 131, 275–286 (1973)
Small, J.: Modern aspects of pH with special reference to plants and soils. London: Baillìere, Tindall and Cox 1954
Trewavas, A.: The turnover of nucleic acids in Lemna minor. Plant Physiol. 45, 742–751 (1970)
Villiers, T. A.: Lysosomal activities of the vacuole in damaged and recovering plant cells. Nature (Lond.) New Biol. 233 57–58 (1971)
Wilson, C. M.: Plant nucleases. I. Separation and purification of two ribonucleases and one nuclease from corn. Plant Physiol. 43, 1332–1338 (1968)
Wilson, C. M.: Plant nucleases. III. Polyacrylamide gel electrophoresis of corn ribonuclease isoenzymes. Plant Physiol. 48, 64–68 (1971)
Wyen, N. V., Farkas, G. L.: On the ribonuclease associated with cytoplasmic ribosomes isolated from Avena leaves. Biochem. Physiol. Pflanzen 162, 220–224 (1971)
Yarwood, J. N.: Ph. D. Thesis, University of Durham (1973)
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Dyer, T.A., Payne, P.I. Katabolism of plant cytoplasmic ribosomes: A study of the interaction between ribosomes and ribonuclease. Planta 117, 259–268 (1974). https://doi.org/10.1007/BF00388399
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DOI: https://doi.org/10.1007/BF00388399