Počet záznamů: 1  

Uptake, translocation and fate of trichloroacetic acid in a Norway spruce/soil system

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    SYSNO ASEP0172332
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JOstatní články
    NázevUptake, translocation and fate of trichloroacetic acid in a Norway spruce/soil system
    Tvůrce(i) Schröder, P. (DE)
    Matucha, Miroslav (UEB-Q)
    Forczek, Sándor (UEB-Q) RID, ORCID
    Uhlířová, H. (CZ)
    Fuksová, K. (CZ)
    Albrechtová, J. (CZ)
    Zdroj.dok.Chemosphere. - : Elsevier - ISSN 0045-6535
    Roč. 52, č. 2 (2003), s. 437-442
    Poč.str.6 s.
    Jazyk dok.eng - angličtina
    Země vyd.GB - Velká Británie
    Klíč. slovaConiferous forest injury ; Chlorinated solvents ; Secondary air pollutants
    Vědní obor RIVCE - Biochemie
    CEPGA522/99/1465 GA ČR - Grantová agentura ČR
    CEZAV0Z5038910 - UEB-Q
    AnotaceTrichloroacetic acid (TCA) is a secondary atmospheric pollutant formed by photooxidation of chlorinated solvents in the troposphereůůit has, however, recently been ranked among natural organohalogens. Its herbicidal properties might be one of the factors adversely affecting forest health. TCA accumulates rapidly in conifer needles and influences the detoxification capacity in the trees. The aim of the investigationsůůa survey of which is briefly given hereůůwas to elucidate the uptake, distribution and fate of TCA in Norway spruce. For this purpose young nursery-grown plants of Norway spruce (Picea abies (L.) Karst.) were exposed to [1,2-14C]TCA and the fate of the compound was followed in needles, wood, roots, soil and air with appropriate radio-indicator methods. As shown by radioactivity monitoring, the uptake of TCA from soil by roots proceeded most rapidly into current needles at the beginning of the TCA treatment and was redistributed at later dates so that TCA content in older needles increased. The only product of TCA metabolism/biodegradation found in the plant/soil-system was CO2 (and corresponding assimilates). TCA biodegradation in soil depends on TCA concentration, soil humidity and other factors.
    PracovištěÚstav experimentální botaniky
    KontaktDavid Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469
    Rok sběru2004