2006
Effects of toxaphene on soil microorganisms in laboratory incubation test
ČERNOHLÁVKOVÁ, Jitka, Jakub HOFMAN, Jitka BEZCHLEBOVÁ, Ladislav DUŠEK, Ivan HOLOUBEK et. al.Základní údaje
Originální název
Effects of toxaphene on soil microorganisms in laboratory incubation test
Název česky
Efekty toxafenu na půdní organismy v laboratorním inkubačním testu
Autoři
ČERNOHLÁVKOVÁ, Jitka (203 Česká republika), Jakub HOFMAN (203 Česká republika, garant), Jitka BEZCHLEBOVÁ (203 Česká republika), Ladislav DUŠEK (203 Česká republika) a Ivan HOLOUBEK (203 Česká republika)
Vydání
Abstract Book of SETAC Europe the 16th Annual Meeting, 2006
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Obor
10511 Environmental sciences
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14310/06:00016308
Organizační jednotka
Přírodovědecká fakulta
Klíčová slova anglicky
soil microbiology; toxaphene
Štítky
Příznaky
Mezinárodní význam
Změněno: 24. 2. 2010 22:31, prof. RNDr. Jakub Hofman, Ph.D.
V originále
Toxaphene is a nonspecific organochlorinated insecticide that was widely used in agriculture mostly in 70s. Due to its lipophilic, semivolatile and persistent properties is present in aquatic and terrestrial ecosystems all over the world until nowadays in significant residues. Toxaphene is toxic for aquatic organisms, but there is a lack of information about its impact on soil ecosystem. The aim of our study was to determine the effects on soil indigenous microflora. Natural soil was spiked with 1 - 1000 mg/kgdw of toxaphene. Effects on various microbial parameters (microbial biomass Cbio, basal and substrate-induced respiration, anaerobic and potential ammonification and nitrification) were measured after 28 days of incubation under controlled laboratory conditions. No significant inhibition effect was observed even at the highest tested concentration. It seems that lower concentration (1 – 100 mg/kgdw) of toxaphene added to soil stimulated microbial activities (respiration, ammonification). According to our results, the risk that contemporary toxaphene residues in soils may harmfully affect soil microorganisms is negligible. This research was supported by Grant Agency of Czech Republic project 525/04/P159.
Česky
Toxaphene is a nonspecific organochlorinated insecticide that was widely used in agriculture mostly in 70s. Due to its lipophilic, semivolatile and persistent properties is present in aquatic and terrestrial ecosystems all over the world until nowadays in significant residues. Toxaphene is toxic for aquatic organisms, but there is a lack of information about its impact on soil ecosystem. The aim of our study was to determine the effects on soil indigenous microflora. Natural soil was spiked with 1 - 1000 mg/kgdw of toxaphene. Effects on various microbial parameters (microbial biomass Cbio, basal and substrate-induced respiration, anaerobic and potential ammonification and nitrification) were measured after 28 days of incubation under controlled laboratory conditions. No significant inhibition effect was observed even at the highest tested concentration. It seems that lower concentration (1 – 100 mg/kgdw) of toxaphene added to soil stimulated microbial activities (respiration, ammonification). According to our results, the risk that contemporary toxaphene residues in soils may harmfully affect soil microorganisms is negligible. This research was supported by Grant Agency of Czech Republic project 525/04/P159.
Návaznosti
| GP525/04/P159, projekt VaV |
| ||
| MSM0021622412, záměr |
|