National Repository of Grey Literature 9 records found  Search took 0.01 seconds. 
Divergent organohalide-respiring consortia in PCB-contaminated sediments
Mikešová, Martina ; Brennerová, Maria (advisor) ; Uhlík, Ondřej (referee) ; Stachová Sejáková, Zuzana (referee)
This study is focused on one particular group of the halogenated molecules called polychlorinated biphenyls (PCBs) - synthetic, organic compounds derived from biphenyl with bound chlorine atoms. Depending on the position and number of the chlorine atoms, there are theoretically 209 individual PCB congeners. Although PCBs production was brought to a halt thirty years ago, recalcitrance to degradation makes them a major environmental pollutant at a global scale. Large amounts of PCBs were produced in several countries, and former Czechoslovakia belonged to the ten major world producers. Despite the PCB congener resistance to chemical modification, bacterial process of reductive dechlorination, named organohalide respiration (OHR), was shown to be efficient in the dechlorination of extensively chlorinated PCB congeners and a prerequisite step towards their subsequent complete mineralization by aerobic bacteria. In our study, reductive dechlorination of polychlorinated biphenyls (PCBs) was assessed using long term anaerobic microcosms. The microcosms were inoculated with highly contaminated with weathered Delor sediments, sampled from the efflux channel of the former PCB manufacturer Chemko Strazske. After one year of cultivation the chemical analysis showed a degradation of up to 36 % of the highly...
Microbial and molecular biological analysis of technological solutions from Glanzstoff Bohemia s.r.o
Brennerová, Mária
Main goal of the study was identification of the bacterial contaminations during the production of high-tenacity viscose filaments. The work describes microbial cultivations, isolation of bacteria from technological solutions, and taxonomical identification through sequencing of 16S ribosomal RNA genes and searching for affiliations with bacterial relatives in the NCBI website.
Petránková, Mirka ; Čechová, Zuzana ; Brennerová, Mária ; Cajthaml, Tomáš
Bioremediation is an indisputably advantageous approach to cleaning up contaminated soils. The efficiency of bioremediation depends on a number of factors, the most important of which are the ability of the bioremediative organism to degrade the target pollutants, the pollutant’s intrinsic properties (aqueous solubility being of key importance), and soil parameters. Composting has been recently shown to be efficient for remediation of soils contaminated e.g. with PAHs
Biodegradace PCB v dlouhodobě kontaminované půdě
Sejáková, Z. ; Brennerová, Mária ; Čechová, Z. ; Dercová, K. ; Cajthaml, Tomáš
The work describes biodegradation of PCBs by several bacterial isolates from long-term contaminated soil
Monitoring of microbial communities in the environment (DGGE method)
Rucká, Lenka ; Vosáhlová, Jolana ; Vránová, Alena ; Brennerová, Mária ; Brenner, Vladimír
Denaturating gradient gel electroporeses is one of techniques used in milecular biology e.g. for detection of pointmutations.
Use of DGE method in ecological studies
Vosáhlová, Jolana ; Rucká, Lenka ; Vránová, Alena ; Brennerová, Mária ; Brenner, Vladimír
DGGE (denaturing gradient gel electrophoresis) method was developed a few years ago as a powerful tool for detection of even sigle base pair mutations.
Construction of bacterial strains containing fluorescent and bioluminiscent makers
Jindrová, Eva ; Rucká, Lenka ; Nováková, H. ; Jurčová, Irena ; Brennerová, Mária ; Demnerová, K. ; Brenner, Vladimír
One of the most effective method for removal of organic pollutants seem to be construction of permeable barriers, allows removal of mixed contaminants with consequent utilization of rhizosphere systems.

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