Isolation of Alginate-producing Mutants of Pseudomonas fluorescens, Pseudomonas putida and Pseudomonas mendocina
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چکیده
منابع مشابه
Pathogenic significance of Pseudomonas fluorescens and Pseudomonas putida.
Among the members of the genus Pseudomonas, P. aeruginosa and P. pseudomallei were, until recently, considered the human pathogens. However, since the early 1960s, other Pseudomonas species have been found in clinical specimens, and their number and frequency of isolation seem to be growing.' The "simple fluorescent" species, P. fluorescens and P. putida, belong to those that were thought by ea...
متن کاملSurvival of rifampin-resistant mutants of Pseudomonas fluorescens and Pseudomonas putida in soil systems.
The fate of spontaneous chromosomal rifampin-resistant (Rifr) mutants of Pseudomonas putida and Pseudomonas fluorescens in sterile and live organic soil from which they were isolated was studied. In sterile native-soil assays, a Rifr mutant of P. putida showed no decrease in competitive fitness when compared with the wild-type parent. However, mutants of P. fluorescens were of two general categ...
متن کاملPolynucleotide phosphorylase-deficient mutants of Pseudomonas putida.
In bacteria, polynucleotide phosphorylase (PNPase) is one of the main exonucleolytic activities involved in RNA turnover and is widely conserved. In spite of this, PNPase does not seem to be essential for growth if the organisms are not subjected to special conditions, such as low temperature. We identified the PNPase-encoding gene (pnp) of Pseudomonas putida and constructed deletion mutants th...
متن کاملIsolation of azomycin from Pseudomonas fluorescens.
In recent years, it has been recognized that bacteria can produce antibiotics of wide structural diversity. Many examples for the production of the antibiotics knownas products of Actinomycetales by eubacteria have been reported1*. Here, we will report the isolation of azomycin from the culture broth of a strain identified as Pseudomonas fluorescens. Azomycinwas first isolated from a strain res...
متن کاملVIM-2–producing Pseudomonas putida, Buenos Aires
To the Editor: Pseudomonas putida infections (0.03% of isolates from the culture collection of inpa-tients, SIR Program 2003–2004, www.aam.org.ar) are mainly reported in immunocompromised patients, such as newborns, neutropenic patients, and cancer patients. They are usually susceptible to extended-spectrum cephalosporins, aminoglyco-sides, fluoroquinolones, and car-bapenems. However, isolates ...
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ژورنال
عنوان ژورنال: Microbiology
سال: 1981
ISSN: 1350-0872,1465-2080
DOI: 10.1099/00221287-125-1-217