نتایج جستجو برای: pseudomonas putida
تعداد نتایج: 53260 فیلتر نتایج به سال:
Biodesulfurization was monitored in a recombinant Pseudomonas putida CECT5279 strain. DszB desulfinase activity reached a sharp maximum at the early exponential phase, but it rapidly decreased at later growth phases. A model two-step resting-cell process combining sequentially P. putida cells from the late and early exponential growth phases was designed to significantly increase biodesulfuriza...
The first complete genome sequence of a p-nitrophenol (PNP)-degrading bacterium is reported here. Pseudomonas putida DLL-E4, a Gram-negative bacterium isolated from methyl-parathion-polluted soil, can utilize PNP as the sole carbon and nitrogen source. P. putida DLL-E4 has a 6,484,062 bp circular chromosome that contains 5,894 genes, with a G+C content of 62.46%.
LapA is the largest surface adhesion protein of Pseudomonas putida that initiates biofilm formation. Here, by using transposon insertion mutagenesis and a conditional lapA mutant, we demonstrate for the first time that LapA influences chloral hydrate (CH) dechlorination in P. putida LF54.
Accumulation of arsenic has potential health risks through consumption of food. Here, we inserted the arsenite [As(III)] S-adenosylmethionine methyltransferase (ArsM) gene into the chromosome of Pseudomonas putida KT2440. Recombinant bacteria methylate inorganic arsenic into less toxic organoarsenicals. This has the potential for bioremediation of environmental arsenic and reducing arsenic cont...
Monomers of microbial polyhydroxyalkanoates, mainly 3-hydroxyhexanoic acid (3HHx) and 3-hydroxyoctanoic acid (3HO), were produced by overexpressing polyhydroxyalkanoates depolymerase gene phaZ, together with putative long-chain fatty acid transport protein fadL of Pseudomonas putida KT2442 and acyl-CoA synthetase (fadD) of Escherichia coli MG1655 in P. putida KT2442. FadL(Pp), which is responsi...
An intragenic probe derived from the multidrug resistance gene oprM hybridized with genomic DNA from all 20 serotypes of Pseudomonas aeruginosa and from all 34 environmental and clinical isolates tested, indicating that the MexA-MexB-OprM multidrug efflux system is highly conserved in this organism. The oprM probe also hybridized with genomic DNA from Pseudomonas aureofaciens, Pseudomonas chlor...
Amperometric biosensors using Pseudomonas putida cells as a bioelement were developed for 2,4-dichloro phenoxy acetic acid (2,4-D). After the adaptation process of Pseudomonas putida to 2,4-D, cells were immobilized onto the screen printed graphite electrodes (SPG) as well as Clark oxygen probe by gelatin and glutaraldehyde. Optimum pH, temperature, and stability of the biosensor were investiga...
The organization and transcriptional control of chromosomal cat genes (required for dissimilation of catechol by the beta-ketoadipate pathway) in the Pseudomonas putida biotype strain (ATCC 12633) are reported. Nucleotide sequence reveals that catR is separated by 135 bp from the divergently transcribed catBC,A; catC begins 21 nucleotides downstream from catB, and catA begins 41 nucleotides dow...
Adapted Pseudomonas putida strains grew in the presence of up to 6% (vol/vol) butanol, the highest reported butanol concentration tolerated by a microbe. P. putida might be an alternative host for biobutanol production, overcoming the primary limitation of currently used strains-insufficient product titers due to low butanol tolerance.
Pseudomonas putida strains PaW8 and PRS2000 produce flagellins with apparent molecular masses of 81 kDa and 50 kDa respectively. Two Tn5 insertion mutants of P. putida PaW8 lacking the ability to bind the flagellin-specific monoclonal antibody MLV1 were isolated. Mutant PaW8-flg2 contained a Tn5 insertion within a 2.6 kb EcoRI fragment of the P. putida chromosome carrying putative basal body ge...
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