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| Mohamed,Mervat S. |
| The use of microorganisms in the degradation and detoxification of many toxic xenobiotics, especially pesticides, is an efficient tool for the decontamination of polluted sites in the environment. A novel bacterial strain (M1) was isolated from several water samples contaminated with methomyl which is capable of degrading methomyl pesticide (1000 ppm) in the presence of 0.05% glucose. These water samples were collected from different irrigation sites in Egypt where methomyl is heavily applied. The partial sequence of 16SrRNA gene of the isolate showed the highest similarity to Stenotrophomonas maltophilia. Restriction fragment patterns of isolated plasmid DNA showed that this strain harbours two different plasmids PMa (8Kb) and PMb (5Kb). PMb succeeded to... |
| Tipo: Journal article |
Palavras-chave: Carbamate; Methomyl; Plasmid; SPE-LC-ESI-MS; Stenotrophomonas. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000400006 |
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| Hernández García,Marcela; Morgante,Verónica; Ávila Perez,Marcela; Villalobos Biaggini,Patricio; Miralles Noé,Pola; González Vergara,Myriam; Seeger Pfeiffer,Michael. |
| s-Triazine-degrading bacterial strains were isolated from long-term simazine-treated agricultural soils of central Chile. The number of culturable heterotrophic bacteria of these agricultural soils (7 x 10(6) CFU/g of dry soil) was not affected by simazine application on field. The simazine-degrading bacterial strains P51, P52 and C53 were isolated by enrichment in minimal medium using simazine as the sole nitrogen source. Resting cells of strains P51 and P52 degraded >80% of simazine within 48 hrs, whereas strain C53 was able to remove >60% of the herbicide. The atzA and atzD genes of the s-triazine upper and lower catabolic pathways were detected in strains P51 and C53, while only atzD gene was observed in strain P52. To compare the bacterial 16S... |
| Tipo: Journal article |
Palavras-chave: Arthrobacter; Biodegradation; Bioremediation; Simazine; Stenotrophomonas; S-triazine. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000500005 |
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| Santos, Jucileuza Conceição dos; Batista, Ieda Hortêncio; Barroso, Hiléia Santos; Lima, João Marcelo Silva; Costa Neto, Pedro de Queiroz; Ghelfi, Andrea; Pereira, José Odair. |
| The biocidal agrochemicals commonly used in agriculture can remain in the soil, affecting the environmental conditions and causing serious risks to health. Knowing that soil microorganisms, especially those from the rhizosphere, can degrade environmental xenobiotics, it was evaluated the potential of bacteria isolated from Coriandrum sativum L. rhizosphere to biodegrade carbendazim (MBC), a fungicide extensively used by agriculturists from rural farming communities in Manaus, Amazonas. Cultures carried out in medium containing carbendazim as a sole carbon source enabled the isolation of 80 bacteria, in the established conditions. Assays to determine degradation potential allowed the selection of the two elite isolates identified as Stenotrophomonas sp.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.12.00.00-9 Amazon soil; Fungicide; Coriander; Carbendazim-degrading bacteria; Stenotrophomonas; Xenobiotics. Microbiologia Aplicada. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/34067 |
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| Urszula,Guzik; Izabela,Greń; Danuta,Wojcieszyńska; Sylwia,Łabużek. |
| A Gram-negative bacterium, designated as strain KB2, was isolated from activated sludge and was found to utilize different aromatic substrates as sole carbon and energy source. On the basis of morphological and physiochemical characteristics and 16S rRNA gene sequence analysis, the isolated strain KB2 was identified as Stenotrophomonas maltophilia. Strain KB2 is from among different Stenotrophomonas maltophilia strains the first one described as exhibiting the activities of three types of dioxygenases depending on the structure of the inducer. The cells grown on benzoate and catechol showed mainly catechol 1,2- dioxygenase activity. The activity of 2,3-dioxygenase was detected after phenol induction. Protocatechuate 3,4-dioxygenase was found in crude cell... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodegradation; Stenotrophomonas; Aromatic compounds; Dioxygenases. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000200014 |
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