Acta Univ. Agric. Silvic. Mendelianae Brun. 2011, 59(1), 303-308 | DOI: 10.11118/actaun201159010303

Action of plant root exudates in bioremediations: a review

Peter Dundek, Ladislav Holík, Ladislav Hromádko, Tomáš Rohlík, Valerie Vranová, Klement Rejšek, Pavel Formánek
Ústav geologie a pedologie, Mendelova univerzita v Brně, Zemědělská 3, 613 00 Brno, Česká republika

This work presents a summary of literature dealing with the use of plant root exudates in bioremediations. Bioremediation using plants (phytoremediation or rhizoremediation) and associate rhizosphere to decontaminate polluted soil is a method based on the catabolic potential of root-associated microorganisms, which are supported by the organic substrates released from roots. These substrates are called "root exudates". Root exudates support metabolism of pollutants-decomposing microorganisms in the rhizosphere, and affect sorption / desorption of pollutants. Awareness of exudation rates is necessary for testing soil decontamination. Commonly, water-soluble root exudates of different plants are studied for their qualitative composition which should be related to total carbon of exuded water-soluble compounds. This paper presents the determined rate of plant root exudation and the amount of root exudates carbon used to form artificial rhizosphere.

Keywords: root exudate, plant, pollutant, soil, metabolism, rhizosphere
Grants and funding:

The study was supported by Internal Grant Agency of Faculty of Forestry and Wood Technology Mendel University in Brno "Extension of current knowledge on bioavailable amino acids in soil and their utilization by soil microorganisms and plant roots", No. 47/2010 (IGA FFWT MENDELU 2010-2012) and by the Grant MSM6215648902 Forest and Wood: the support of functionally integrated forest management and use of wood as a renewable raw material phase 4/2/2, part II "The management strategy of nature conservation areas".

Received: August 25, 2010; Published: July 10, 2014  Show citation

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Dundek, P., Holík, L., Hromádko, L., Rohlík, T., Vranová, V., Rejšek, K., & Formánek, P. (2011). Action of plant root exudates in bioremediations: a review. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 59(1), 303-308. doi: 10.11118/actaun201159010303
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