Summary
A flow method for the measurement of the uptake of labelled substances by plant cells has been developed. Accumulation in the medium of substances released by the plants is thereby avoided, and a more precise determination of the rate of uptake—also of transients—than through the usual, static methods is possible. The time function of the stimulation of the uptake of Rb by Chlorella fusca by light at 30° has been analyzed, and the component believed to represent active transport separated from other components that have shorter time constants; at 3° the active component is much reduced.
In the cases of the heavy metal ions Zn, Co, Pb and Ce, even after presaturation with the ions in the dark for the suppression of the short-term uptake the light-independent long-term uptake is far stronger than with Rb. Moreover, for Zn and Co the uptake is greatly stimulated by light at 30°, but little if at all at 5°. No stimulation was found under any conditions with Ce. With Pb, the light effect was hardly reproducible, and in any case extremely small. The energy-dependent transport of Zn and Co is probably active.
Similar content being viewed by others
Literatur
Barber, J.: The influx of potassium into Chlorella pyrenoidosa. Biochim. biophys. Acta (Amst.) 163, 141–149 (1968).
Broda, E.: The uptake of some heavy trace elements by Chlorella. In: Stofftransport und Stoffverteilung in Zellen höherer Pflanzen (Hrsg. K. Mothes, E. Müller, A. Nelles, D. Neumann), S. 109–116. Berlin: Akademie-Verlag 1968.
Brown, F., Cuthbertson, W. F. J., Fogg, G. E.: Vitamin B12 activity of Chlorella vulgaris Beij. and Anabaena cylindrica Lemm. Nature (Lond.) 177, 188 (1956).
Findenegg, G. R.: Aktive und passive Aufnahme von Spurenelementen durch Chlorella. Diss. Wien 1968.
— Broda, E.: Stoffwechselabhängige Aufnahme von Zink durch Chlorella. Naturwissenschaften 53, 358–359 (1966).
—, Springer-Lederer, H.: Apparat zur laufenden Gewinnung von Chlorella-Algen für chemische Untersuchungen. Allg. prakt. Chem. 18, 279–280 (1967).
Good, N. E., Winget, G. D., Winter, W., Connolly, T. N., Izawa, S., Singh, R. M.: Hydrogen ion buffer for biological research. Biochemistry (Wash.) 5, 467–477 (1966).
Lüttge, U.: Aktiver Transport. In: M. Alfert, H. Bauer, C. V. Harding, W. Sandritter, P. Sitte (Hrsg.), Protoplasmatologia, Bd. VIII/7b, S. 40ff. Wein: Springer 1969.
Matzku, S., Broda, E.: Die Zinkaufnahme in das Innere von Chlorella. Planta (Berl.) 92, 29–40 (1970).
Müller, E., Paschinger, H.: Action of inhibitors of protein synthesis on active transport. Biochem. Physiol. Pflanzen (Jena) 161, 476–480 (1970).
Nightingale, E. R.: Phenomenological theory of ion solvation. Effective radii of hydrated ions. J. Physic. Chem. 63, 1381–1387 (1959).
Packer, L., Murakami, S., Mehard, C. W.: Ion transport in chloroplasts and plant mitochondria. Ann. Rev. Plant Physiol. 21, 271–304 (1970).
Paschinger, H., Broda, E.: Hemmung der aktiven Bromidaufnahme durch Pflanzenzellen durch Glucose. Mh. Chem. 98, 905–910 (1967).
Ruppel, H. C.: Untersuchungen über die Zusammensetzung von Chlorella bei Synchronisation im Licht-Dunkel-Wechsel. Flora (Jena) 152, 113–138 (1962).
Schuster, I., Broda, E.: Die Bindung von Zink durch Zellwände von Chlorella. Mh. Chem. 101, 285–295 (1970).
Springer-Lederer, H., Rosenfeld, D. L.: Energy sources for the absorption of rubidium by Chlorella, Physiol. Plantarum (Cph.) 21, 435–444 (1968).
Wiessner, W.: Light effects on ion fluxes in microalgae. In: P. Halldal (ed.), Photobiology of microorganisms. Chichester: J. Wiley & Sons 1970.
Author information
Authors and Affiliations
Additional information
Herrn Prof. Dr. K. Mothes zum 70. Geburtstag in Verehrung gewidment.
Rights and permissions
About this article
Cite this article
Findenegg, G.R., Paschinger, H. & Broda, E. Untersuchung der Lichtabhängigkeit der Aufnahme von Rubidium, Zink, Kobalt, Blei und Cer durch Chlorella nach einer Flußmethode. Planta 99, 163–173 (1971). https://doi.org/10.1007/BF00388248
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00388248