Summary
Synchronization of Euglena gracilis (Z) on lactate medium is shown to be independent of illumination. The existence of a mitochondrial cycle in lightgrown as well as in dark-grown Euglena is demonstrated. When RNA synthesis is studied by pulse labeling with tritiated uracil in synchronously growing cells, a discontinuous RNA synthesis is found. Two peaks of preferential RNA synthesis in dark-grown cells and three peaks in light-grown cells are seen; the significance of the third peak of RNA synthesis in light-grown Euglena is discussed.
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Ledoigt, G., Calvayrac, R., Orcival-Lafont, A.M. et al. Comparaison, à la lumière et à l'obscurité, des synthèses spécifiques d'ARN chez Euglena gracilis Z en cultures synchrones sur milieu lactate et étude du Chondriome. Planta 103, 254–262 (1972). https://doi.org/10.1007/BF00386848
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DOI: https://doi.org/10.1007/BF00386848