Strains of the soil fungus Mortierella show different degradation potentials for the phenylurea herbicide diuronBiodegradation - Tập 24 - Trang 765-774 - 2013
Lea Ellegaard-Jensen, Jens Aamand, Birthe B. Kragelund, Anders H. Johnsen, Søren Rosendahl
Microbial pesticide degradation studies have until now mainly focused on bacteria, although fungi have also been shown to degrade pesticides. In this study we clarify the background for the ability of the common soil fungus Mortierella to degrade the phenylurea herbicide diuron. Diuron degradation potentials of five Mortierella strains were compared, and the role of carbon and nitrogen for the deg...... hiện toàn bộ
Microbial transformation of pentachloronitrobenzene under nitrate reducing conditionsBiodegradation - Tập 21 - Trang 691-702 - 2010
Didem Okutman Tas, Spyros G. Pavlostathis
The effect of pentachloronitrobenzene (PCNB) on denitrification was assessed with two denitrifying cultures (PCNB-free control and PCNB-acclimated) developed from a contaminated estuarine sediment. PCNB was transformed to pentachloroaniline (PCA) in the PCNB-acclimated culture repeatedly amended with 0.1 μM PCNB, but further dechlorination or degradation of PCA was not observed for almost 1 year. ...... hiện toàn bộ
Degradation of 2,5-dimethylpyrazine by Rhodococcus erythropolis strain DP-45 isolated from a waste gas treatment plant of a fishmeal processing companyBiodegradation - Tập 18 - Trang 585-596 - 2006
Sugima Rappert, Renjie Li, Mariya Kokova, Mathias Antholz, Stephanie Nagorny, Wittko Francke, Rudolf Müller
A bacterium, strain DP-45, capable of degrading 2,5-dimethylpyrazine (2,5-DMP) was isolated and identified as Rhodococcus erythropolis. The strain also grew on many other pyrazines found in the waste gases of food industries, like 2,3-dimethylpyrazine (2,3-DMP), 2,6-dimethylpyrazine (2,6-DMP), 2-ethyl-5(6)-dimethylpyrazine (EMP), 2-ethylpyrazine (EP), 2-methylpyrazine (MP), and 2,3,5-trimethylpyra...... hiện toàn bộ
Metabolic characterization of a strain (BM90) of Delftia tsuruhatensis showing highly diversified capacity to degrade low molecular weight phenolsBiodegradation - Tập 21 - Trang 475-489 - 2009
Belén Juárez-Jiménez, Maximino Manzanera, Belén Rodelas, Maria Victoria Martínez-Toledo, Jesus Gonzalez-López, Silvia Crognale, Chiara Pesciaroli, Massimiliano Fenice
A novel bacterium, strain BM90, previously isolated from Tyrrhenian Sea, was metabolically characterized testing its ability to use 95 different carbon sources by the Biolog system. The bacterium showed a broad capacity to use fatty-, organic- and amino-acids; on the contrary, its ability to use carbohydrates was extremely scarce. Strain BM90 was identified and affiliated to Delftia tsuruhatensis ...... hiện toàn bộ
A mathematical and empirical model of the performance of a membrane-coupled anaerobic fermentorBiodegradation - Tập 22 - Trang 833-844 - 2010
Jong-Oh Kim, Jinwook Chung
A mathematical model was developed to describe the performance of a membrane-coupled anaerobic fermentor (MCAF)-based process. In our experimental results, higher volatile fatty acid (VFA) recovery ratios were obtained at greater filtration ratios. The VFA recovery ratio peaked at an HRT of 12 h and a membrane filtration ratio of 0.95 at a constant SRT. Based on our simulation, the HRT and filtrat...... hiện toàn bộ
Estimates of Gibbs free energies of formation of chlorinated aliphatic compoundsBiodegradation - Tập 5 - Trang 21-28 - 1994
Jan Dolfing, Dick B. Janssen
The Gibbs free energy of formation of chlorinated aliphatic compounds was estimated with Mavrovouniotis' group contribution method. The group contribution of chlorine was estimated from the scarce data available on chlorinated aliphatics in the literature, and found to vary somewhat according to the position of chlorine in the molecule. The resulting estimates of the Gibbs free energy of formation...... hiện toàn bộ
Characterization of different compost extracts using Fourier-transform infrared spectroscopy (FTIR) and thermal analysisBiodegradation - Tập 19 - Trang 815-830 - 2008
Teresa Carballo, Ma Victoria Gil, Xiomar Gómez, Fernando González-Andrés, Antonio Morán
Compost extract or “compost tea” is a liquid extract of compost obtained by mixing compost and water for a defined period of time. Compost tea contains nutrients and a range of different organisms and is applied to the soil or directly to plants with the principal aim of suppressing certain plant diseases. In addition, the application of compost tea supplies nutrients and organic matter to the soi...... hiện toàn bộ
Cresols utilization by Trametes versicolor and substrate interactions in the mixture with phenolBiodegradation - Tập 21 - Trang 625-635 - 2010
Zlatka Alexieva, Hyusein Yemendzhiev, Plamena Zlateva
The ability of the white rot fungus Trametes versicolor strain 1 to degrade and utilize methylated phenols (cresols) was established for the first time in a medium not containing any other carbon components. The data obtained demonstrated the better potential of the strain to assimilate p-cresol instead of o- or m- cresol. The 0.5 g/l p-cresol provided was degraded in full after 96 h. The effect...... hiện toàn bộ