ORGANIC XENOBIOTICS AND PLANTS: FROM MODE OF ACTION TO ECOPHYSIOLOGY

0375506 - ÚEB 2012 RIV NL eng M - Monography Chapter
Matucha, Miroslav - Schröder, P.
Trichloroacetic Acid in the Forest Ecosystem.
ORGANIC XENOBIOTICS AND PLANTS: FROM MODE OF ACTION TO ECOPHYSIOLOGY. Dordrecht: Springer, 2011 - (Schröder, P.; Collins, P.), s. 87-103. Plant Ecophysiology, Volume 8. ISBN 978-90-481-9851-1
Institutional research plan: CEZ:AV0Z50380511
Keywords : NORWAY SPRUCE/SOIL-SYSTEM * LONG-TERM EXPOSURE * CHLOROACETIC ACIDS
Subject RIV: DK - Soil Contamination ; De-contamination incl. Pesticides

Trichloroacetic acid (TCA) is a ubiquitous phytotoxic substance that occurs at various levels in the environment. The last century, it was produced and used in agriculture as herbicide against perennial grasses for some time, before it was found as secondary atmospheric pollutant. It was considered a reason of coniferous forest decline. TCA was further found among products of disinfection of drinking water and of delignification of cellulose pulp by chlorine. In addition to these anthropogenic sources of TCA, is has been found to be formed in the forest ecosystem as a result of microbial chlorination of humic substances that subsequently yield TCA in the soil. TCA may be considered important intermediate of soil organic matter degradation and belongs thus to naturally-produced organohalogens and at the same time to relevant xenobiotics and stressors affecting plants in the forest ecosystem. Its role in the forest ecosystem is clearly shown.
Permanent Link: http://hdl.handle.net/11104/0208138