Abstract
Changes in pH, total alkalinity and O2 concentration were followed in an aquatic medium with excised wheat roots (Tritkum aestivum L.). Concentrations of total inorganic carbon and free CO2 were calculated from total alkalinity and pH according to carbonate equilibria. The total inorganic carbon was estimated by flow-injection infra-red gas analysis. Total alkalinity increased in the root medium during incubation. Respiratory CO2 production was estimated best from the increase in total inorganic carbon measured with an infra-red gas analyser.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Allen, E. D.,Spence, D. H. N.: The differential ability of aquatic plants to utilize the inorganic carbon supply in fresh waters.- New Phytol.87: 269–283,1981.
Bokhari, U. G., Coleman, D. C, Rubink, A.: Chemistry of roots exudates and rhizosphere soils of prairie plants. -Can. J. Bot.57: 1473–1477,1979.
Cáp, J., Pokorny, J., ŠerÁk, L.: The use of electrochemical measurements in the ecology of shallow water reservoirs. - In: Kalvoda, R. (ed.): Electroanalytical Methods in Chemical and Environmental Analysis. Pp. 192–202. Plenum Press, New York - London 1987.
Erdmann, B., Hoffmann, P., Wiedenroth, E.-M.: Changes in the root system of wheat seedlings following root anaerobiosis. I. Anatomy and respiration inTriticum aestivum L. - Ann. Bot.58: 579–605,1986.
Golterman, H. L. (ed.): Methods for Chemical Analysis of Fresh Waters. Int. Biol. Program Handbook 8. - Blackwell Scientific Publications, Oxford 1969.
Kinzel, H.: Rolle des Hydrocarbonats im Stoffwechsel von Wurzeln. - In: Pflanzenökologie und Mineralstoffwechsel. Pp. 331–337. Verlag Eugen Ulmer, Stuttgart 1982.
Loewenthal, R. E., Marais, R. G.: Carbonate Chemistry of Aquatic Systems. Theory and Application. - Arbor Science, Ann Arbor, Michigan 1976.
McDougall, B. M.: Movement of14C-photosynthate into the roots of wheat seedlings and exudation of14C from intact roots.- New Phytol.69: 37–46,1970.
Ondok, J. P., Pokorný, J.: Modelling photosynthesis of submersed macrophyte stands in habitats with limiting inorganic carbon. 1. Model description. - Photosynthetica21: 543–554,1987.
Pokorný, J., Ondok, J. P., KonCalovÁ, H.: Photosynthetic response to inorganic carbon inElodea densa(PLANCHON) Caspary. - Photosynthetica19: 366–372,1985.
Smith, F. A., Raven, J. A.: H+ transport and regulation of cell pH. - In:LÜttge, U.,Pitman, M. G. (ed.): Encyclopedia of Plant Physiology, New Series, 2A. Transport in Plants. Pp. 317–346. Springer Verlag, Berlin - Heidelberg -New York 1976.
Titus, J. E.: Photosynthetic response of two submerged macrophytes to dissolved inorganic carbon concentration and pH. -Limnol. Oceanogr.27: 151–160,1982.
Van, T. K., Haller, W. T., Bowes, G.: Comparison of the photosynthetic characteristics of three submersed aquatic plants. - Plant Physiol.58: 761–768,1976.
Wiedenroth, E.-M.: Der respiratorische Quotient intakter Wurzeln als Kennwert ihres Energiezustandes. - Wiss. Z. Humboldt-Univ. Berlin, math.-naturwiss. R.33: 312–314, 1984.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
KončalovÁ, H., Albrecht, G., Pokorný, J. et al. Measurement of respiratory CO2 production of roots in an aquatic medium. Biol Plant 31, 1–7 (1989). https://doi.org/10.1007/BF02890673
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02890673