the species of pseudomonas genus show different levels of resistance to soil's heavy metals pollution. since, there exists is a relationship between heavy metal resistance and plasmid profile of bacteria, in this study, plasmid profile of plant growth promoting rhizobacteria (pgpr) pseudomonas fluorescence isolates were studied in the presence of cadmium and zinc. the bacteria were initial...

Two current technologies used in biosensor development are very promising: 1. The sol-gel process of making microporous glass at room temperature, and 2. Using a fluorescent compound that undergoes fluorescence quenching in response to a specific analyte. These technologies have been combined to produce an iron biosensor. To optimize the iron (II or III) specificity of an iron biosensor, pyover...

We have carried out a picosecond fluorescence study of holo- and apoazurins of Pseudomonas aeruginosa (azurin Pae), Alcaligenes faecilis (azurin Afe), and Alcaligenes denitrificans (azurin Ade). Azurin Pae contains a single, buried tryptophyl residue; azurin Afe, a single surface tryptophyl residue; and azurin Ade, tryptophyl residues in both environments. From anisotropy measurements we conclu...

−In an attempt to create an acidic amino acid-sensing Escherichia coli, a chimeric sensor kinase (SK)-based biosensor was constructed using Pseudomonas putida AauS. AauS is a sensor kinase that ultimately controls expression of the aau gene through its cognate response regulator AauR, and is found only in P. putida KT2440. The AauZ chimera SK was constructed by integration of the sensing domain...

For the first time, we have investigated the bacterial toxicity or compatibility properties of Pt nanoparticles (NPs) with different sizes (P1, P2, P3, P4 and P5). The bacterio-toxic or compatible properties of these five different sized Pt NPs with the clinical pathogen, Pseudomonas aeruginosa were explored by many analytical methods such as the conventional plate count method, matrix assisted...