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Synthesis and Applications of Isotopically Labelled Compounds, Volume 8
- 1.
SYSNO ASEP 0109149 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Investigations of the Role of Chloroacetic Acids in Forest Ecosystems Using Carbon 14 and Chlorine 36 Title Investigations of the Role of Chloroacetic Acids in Forest Ecosystems Using Carbon 14 and Chlorine 36 Author(s) Matucha, Miroslav (MBU-M)
Gryndler, Milan (MBU-M) RID, ORCID
Uhlířová, H. (CZ)
Forczek, Sándor (UEB-Q) RID, ORCID
Fuksová, K. (CZ)
Schröder, P. (DE)Source Title Synthesis and Applications of Isotopically Labelled Compounds, Volume 8. - : John Wiley & Sons, Ltd, 2004 / Dean D.C. ; Filer C.N. ; McCarthy K.E. - ISBN 0-470-86365-X Pages s. 165-170 Number of pages 6 s. Language eng - English Country GB - United Kingdom Keywords soil processes ; microbial degradation ; chlorination of humic acids Subject RIV GK - Forestry R&D Projects GA522/02/0874 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z5038910 - UEB-Q Annotation Using 14C- and 36Cl-labelled compounds and radio-indicator methods, we showed that chloroacetic acids (CAAs) in the forest soil are both microbially degraded and simultaneously formed by enzymatic chlorination of organic matter. Dichloroacetic acid (DCA) is degraded faster than trichloroacetic acid (TCA). Similarly, biodegradation of TCA in needles proceeds microbially as well. In vitro chlorination of acetic and humic acids is mediated by chloroperoxidase and leads to fast formation of DCA from acetic acid, while humic acids give rise also to TCA. Both processes result in a steady state of CAA concentration in soil and participate in decomposition of soil organic matter and in the chlorine cycle in forest ecosystems. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2005
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