Summary
Ultrastructural studies were performed on a strain ofEuglena gracilis bleached with the antibiotic porfiromycin. A limited number of organelles could be identified as plastids by their possession of a double envelope and a stroma containing bunches of minute thylakoids, DNA-fibrils and ribosomes. A stigma was situated close to the reservoir. Opposite the stigma a paraflagellar body was observed in the main flagellum.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ben-Shaul, Y., andI. Ophir, 1970: Effects of streptomycin on plastids in dividingEuglena. Planta (Berl.)91, 195–203.
—,R. Silman, andI. Ophir, 1972: Effects of streptomycin on the ultrastructure of plastids inEuglena. Physiolog. veg.10, 255–268.
Buetow, D. E., 1968: Morphology and ultrastructure ofEuglena. In: The biology ofEuglena I, pp. 109–184 (D. E. Buetow, ed.). New York-London: Academic Press.
Ebringer, L., 1972: The action of rubiflavin and other cytostatic antibiotics onEuglena gracilis. Neoplasma19, 579–589.
—,J. L. Mego, andA. Jurášek, 1969: Mitomycins and the bleaching ofEuglena gracilis. Arch. Mikrobiol.64, 229–234.
Gibor, A., andS. Granick, 1964: Plastids and mitochondria: Inheritable systems. Science (N.Y.)145, 890–897.
Kirk, J. T. O., andR. A. E. Tilney-Bassett, 1967: The plastids. London-San Francisco: Freeman.
Kivic, P. A., andM. Vesk, 1972: Structure and function in the euglenoid eyespot apparatus. Planta (Berl.)105, 1–14.
Leedale, G. F., 1967: Euglenoid flagellates. Englewood Cliffs, N. J.: Prentice-Hall.
Lefort, M., 1963: Étude comparative de certains mutants dépigmentés chez l'Euglena gracilis et chez d'autres algues. C. R. Acad. Sci. (Paris)256, 5190–5192.
Marčenko, E., 1973: Plastids of the yellow y-1 strain ofEuglena gracilis. Protoplasma76, 417–433.
Michaels, A., andA. Gibor, 1973: Ultrastructural changes inEuglena after ultraviolet irradiation. J. Cell Sci.13, 799–809.
Moriber, L. G., B. Hershenov, S. Aaronson, andB. Bensky, 1963: Teratological chloroplast structures inEuglena gracilis permanently bleached by exogenous physical and chemical agents. J. Protozool.10, 80–86.
Pringsheim, E. G., andO. Pringsheim, 1952: Experimental elimination of chromatophores and eyespot inEuglena gracilis. New Phytol.51, 65–76.
Schiff, J. A., andH. T. Epstein, 1965: The continuity of the chloroplast inEuglena. In: Reproduction: molecular, subcellular, and cellular, pp. 131–189 (M. Locke, ed.). New York-London: Academic Press.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kronestedt, E., Walles, B. On the presence of plastids and the eyespot apparatus in a porfiromycin-bleached strain ofEuglena gracilis . Protoplasma 84, 75–82 (1975). https://doi.org/10.1007/BF02075944
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF02075944