a 2006

Effects of selected organic pollutants to soil nematode Caenorhabditis elegans

SOCHOVÁ, Ivana, Jakub HOFMAN and Ivan HOLOUBEK

Basic information

Original name

Effects of selected organic pollutants to soil nematode Caenorhabditis elegans

Name in Czech

Efekty vybraných organických polutantů pro hlístici C. elegans

Authors

SOCHOVÁ, Ivana (203 Czech Republic), Jakub HOFMAN (203 Czech Republic, guarantor) and Ivan HOLOUBEK (203 Czech Republic)

Edition

Abstract Book of SETAC Europe the 16th Annual Meeting, 2006

Other information

Language

English

Type of outcome

Konferenční abstrakt

Field of Study

10511 Environmental sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/06:00016311

Organization unit

Faculty of Science

Keywords in English

soil; pops; ecotoxicology

Tags

International impact
Změněno: 24/2/2010 22:32, prof. RNDr. Jakub Hofman, Ph.D.

Abstract

V originále

Nematodes are very abundant and fundamental group of soil organisms and non-parasitic species are important for soil quality. Therefore, nematodes are suitable as bioindicators of soil conditions and as organisms for toxicity testing. Nematodes used in laboratory toxicity tests are comparable to other soil species. Moreover, they are often referred as less demanding to place and time and as more sensitive. For our studies we used Caenorhabditis elegans strain N2, var. Bristol. Tested chemicals were 4 congeners of aza-PAHs, chlorinated paraffin and 2 organochlorinated pesticides in soil, aquatic media and agar. Interpretation was determined as mortality after 24 and 48 hours. Then were assessed LC50 value, compared results from 24/48 hrs test and different test media. In soil is LC50 value after 48 hrs higher due to sorption in soil. In aquatic media and agar after 48 hrs the LC50 value decreases. Agar is a specific medium, tested chemicals respond otherwise than in soil or aquatic medium and therefore results from agar test can be compared only with agar test data. This research was supported by Grant Agency of Czech Republic project 525/04/P159.

In Czech

Nematodes are very abundant and fundamental group of soil organisms and non-parasitic species are important for soil quality. Therefore, nematodes are suitable as bioindicators of soil conditions and as organisms for toxicity testing. Nematodes used in laboratory toxicity tests are comparable to other soil species. Moreover, they are often referred as less demanding to place and time and as more sensitive. For our studies we used Caenorhabditis elegans strain N2, var. Bristol. Tested chemicals were 4 congeners of aza-PAHs, chlorinated paraffin and 2 organochlorinated pesticides in soil, aquatic media and agar. Interpretation was determined as mortality after 24 and 48 hours. Then were assessed LC50 value, compared results from 24/48 hrs test and different test media. In soil is LC50 value after 48 hrs higher due to sorption in soil. In aquatic media and agar after 48 hrs the LC50 value decreases. Agar is a specific medium, tested chemicals respond otherwise than in soil or aquatic medium and therefore results from agar test can be compared only with agar test data. This research was supported by Grant Agency of Czech Republic project 525/04/P159.

Links

GP525/04/P159, research and development project
Name: Vliv nově rozpoznávaných prioritních perzistentních organických polutantů (POPs) na organismy v půdním ekosystému
Investor: Czech Science Foundation, Effects of newly recognized priority persistent organic pollutants (POPs) on organisms of soil ecosystem
MSM0021622412, plan (intention)
Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)
Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)