Kyseliny chloroctové- intermediáty při degradaci organické hmoty v lesní půdě

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389030%3A_____%2F07%3A00079022" target="_blank" >RIV/61389030:_____/07:00079022 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11110/07:00008814 RIV/00020702:_____/07:8P007517

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Chloroacetic acids - Degradation intermediates of organic matter in forest soil

Popis výsledku v původním jazyce

Chloroacetic acids (CAA), especially trichloroacetic acid (TCA), were considered phytotoxic secondary air pollutants of anthropogenic origin affecting conifers and were therefore intensively studied. However, another source of CAA has been then found: aforest soil in which humic substances are degraded by microbial processes to CAA and chloroform. This new aspect-formation of CAA in the soil-means that CAA are continuously produced and also biodegraded by other microorganisms in the soil and contributethereby to the degradation of soil organic matter (SOM). Here we show for the first time the formation of dichloroacetic acid (DCA) and TCA in the forest soil by chlorination of SOM using Cl-36 labeled chloride. We suggest that CAA are both formed and biodegraded in the forest soil and thus represent intermediates in one of the processes of SOM decay.

Název v anglickém jazyce

Chloroacetic acids - Degradation intermediates of organic matter in forest soil

Popis výsledku anglicky

Chloroacetic acids (CAA), especially trichloroacetic acid (TCA), were considered phytotoxic secondary air pollutants of anthropogenic origin affecting conifers and were therefore intensively studied. However, another source of CAA has been then found: aforest soil in which humic substances are degraded by microbial processes to CAA and chloroform. This new aspect-formation of CAA in the soil-means that CAA are continuously produced and also biodegraded by other microorganisms in the soil and contributethereby to the degradation of soil organic matter (SOM). Here we show for the first time the formation of dichloroacetic acid (DCA) and TCA in the forest soil by chlorination of SOM using Cl-36 labeled chloride. We suggest that CAA are both formed and biodegraded in the forest soil and thus represent intermediates in one of the processes of SOM decay.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EF - Botanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Soil Biology and Biochemistry

ISSN

0038-0717

e-ISSN

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Svazek periodika

39

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

4

Strana od-do

382-385

Kód UT WoS článku

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EID výsledku v databázi Scopus

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