| s-stereoselective piperazine-2-tert-butylcarboxamide hydrolase from pseudomonas azotoformans iam 1603 is a novel l-amino acid amidase. | an amidase acting on (r,s)-piperazine-2-tert-butylcarboxamide was purified from pseudomonas azotoformans iam 1603 and characterized. the enzyme acted s-stereoselectively on (r,s)-piperazine-2-tert-butylcarboxamide to yield (s)-piperazine-2-carboxylic acid. n-terminal and internal amino acid sequences of the enzyme were determined. the gene encoding the s-stereoselective piperazine-2-tert-butylcarboxamide amidase was cloned from the chromosomal dna of the strain and sequenced. analysis of 2.1 kb ... | 2004 | 15066172 |
| pseudomonas panacis sp. nov., isolated from the surface of rusty roots of korean ginseng. | a gram-negative, aerobic bacterium, designated cg20106(t), was isolated from the surface tissues of rusty root lesions of korean ginseng. phylogenetic analysis of the 16s rrna gene sequence revealed that this isolate represents a hitherto unknown subline within the genus pseudomonas. strain cg20106(t) was catalase- and oxidase-positive, motile and rod-shaped. the overall phenotypic features of the ginseng isolate were similar to those of pseudomonas cedrina, pseudomonas migulae and pseudomonas a ... | 2005 | 16014508 |
| new enzymatic method of chiral amino acid synthesis by dynamic kinetic resolution of amino acid amides: use of stereoselective amino acid amidases in the presence of alpha-amino-epsilon-caprolactam racemase. | d- and l-amino acids were produced from l- and d-amino acid amides by d-aminopeptidase from ochrobactrum anthropi c1-38 and l-amino acid amidase from pseudomonas azotoformans iam 1603, respectively, in the presence of alpha-amino-epsilon-caprolactam racemase from achromobacter obae as the catalyst by dynamic kinetic resolution of amino acid amides. | 2007 | 17586677 |
| endophytic colonization of potato (solanum tuberosum l.) by a novel competent bacterial endophyte, pseudomonas putida strain p9, and its effect on associated bacterial communities. | pseudomonas putida strain p9 is a novel competent endophyte from potato. p9 causes cultivar-dependent suppression of phytophthora infestans. colonization of the rhizoplane and endosphere of potato plants by p9 and its rifampin-resistant derivative p9r was studied. the purposes of this work were to follow the fate of p9 inside growing potato plants and to establish its effect on associated microbial communities. the effects of p9 and p9r inoculation were studied in two separate experiments. the r ... | 2009 | 19329656 |
| isolation, identification and characterization of a new lipolytic pseudomonas sp., strain ahd-1, from tunisian soil. | a novel, lipid-degrading bacterium (strain ahd-1) was isolated from soil regularly contaminated with washing-machine wastewater in sfax, tunisia. when this strain was grown in a medium containing 2% triacylglycerol, the hydrolysis products were found to be diacylglycerols, monoacylglycerols and free fatty acids. this strain was an aerobic, mesophilic, gram-negative, motile, non-sporulating bacterium, capable of growing optimally at ph 7 and 27 degrees c. the predominant fatty acids were found to ... | 2010 | 20232682 |
| degradation of cyhalofop-butyl (cyb) by pseudomonas azotoformans strain qdz-1 and cloning of a novel gene encoding cyb-hydrolyzing esterase. | cyhalofop-butyl (cyb) is a widely used aryloxyphenoxy propanoate (aopp) herbicide for control of grasses in rice fields. five cyb-degrading strains were isolated from rice field soil and identified as agromyces sp., stenotrophomonas sp., aquamicrobium sp., microbacterium sp., and pseudomonas azotoformans ; the results revealed high biodiversity of cyb-degrading bacteria in rice soil. one strain, p. azotoformans qdz-1, degraded 84.5% of 100 mg l(-1) cyb in 5 days of incubation in a flask and util ... | 2011 | 21534595 |
| complete genome sequence of pseudomonas azotoformans s4, a potential biocontrol bacterium. | pseudomonas azotoformans is a gram-negative bacterium and infects cereal grains, especially rice. p. azotoformans s4 from soil sample derived from lijiang, yunnan province, china, appeared to be strong inhibitory activity against fusarium fujikurio, a serious rice fungal pathogen. here, we present the complete genome of p. azotoformans s4, which consists of 6,859,618bp with a circle chromosome, 5991 coding dna sequences, 70 trna and 19 rrna. the genomic analysis revealed that 9 candidate gene cl ... | 2016 | 27080451 |
| degradation capacities of bacteria and yeasts isolated from the gut of dendroctonus rhizophagus (curculionidae: scolytinae). | bark beetles (curculionidae: scolytinae) feed on the xylem and phloem of their host, which are composed of structural carbohydrates and organic compounds that are not easily degraded by the insects. some of these compounds might be hydrolyzed by digestive enzymes produced by microbes present in the gut of these insects. in this study, we evaluated the enzymatic capacity of bacteria (acinetobacter lwoffii, arthrobacter sp., pseudomonas putida, pseudomonas azotoformans, and rahnella sp.) and yeast ... | 2017 | 27544667 |
| effect of antibiotic supplementation on the quality of cryopreserved fish sperm of silver barb (barbodes gonionotus): sperm motility and viability, bacterial quality and fertilization. | disease prevention is a key aspect in developing cryopreservation procedures for fish sperm and in improving the reproductive biotechnology for commercially important aquatic species. the purpose of this study was to evaluate the effects of an antibiotic supplementation (0.25% penicillin-streptomycin, ps and 0.25% penicillin-gentamicin, pg) on sperm motility and viability, bacterial profile and fertilization capacity of cryopreserved silver barb (barbodes gonionotus) semen. the experimental prot ... | 2016 | 26786020 |
| synergistic growth of bacillus and pseudomonas and its degradation potential on pretreated polypropylene. | this study investigated biodegradation of physically pretreated polypropylene (pp) by using two different combinations of microorganisms, namely, bacillus flexus + pseudomonas azotoformans(b1) and b. flexus + b. subtilis(b2), for a period of 12 months. the growth rate of (b1) was found to be high throughout the study period, and reached a maximum of 1 × 10(14) colony-forming units (cfu)/ml. at the end of the experiment, the polymers become hydrophilic. carbonyl indices showed that ultraviolet (u ... | 2016 | 25551336 |
| inhibition of staphylococcus aureus by antimicrobial biofilms formed by competitive exclusion microorganisms on stainless steel. | the goal of this study was to develop a desiccation resistant antimicrobial surface using biofilm of competitive exclusion (ce) microorganism inhibitory to staphylococcus aureus. we isolated 161 microorganisms from soils, foods, and food-contact surfaces that are inhibitory to s. aureus. among them, three ce microorganisms (streptomyces spororaveus strain gaeunsan-18, bacillus safensis strain chamnamu-sup 5-25, and pseudomonas azotoformans strain lettuce-9) exhibiting strong antibacterial activi ... | 2016 | 27648758 |
| priming-mediated systemic resistance in cucumber induced by pseudomonas azotoformans gc-b19 and paenibacillus elgii mm-b22 against colletotrichum orbiculare. | induced systemic resistance (isr) can be activated by biotic agents, including root-associated beneficial bacteria to inhibit pathogen infection. we investigated priming-mediated isr in cucumber induced by pseudomonas azotoformans gc-b19 and paenibacillus elgii mm-b22 against colletotrichum orbiculare (causal fungus of anthracnose). in addition, we examined whether this isr expression was bacterial density-dependent by assessing peroxidase activity in the presence and absence of the pathogen. as ... | 2014 | 24502209 |
| pseudomonas lactis sp. nov. and pseudomonas paralactis sp. nov., isolated from bovine raw milk. | five strains, designated ws 4672t, ws 4998, ws 4992t, ws 4997, and ws 5000, isolated from bovine raw milk formed two individual groups in a phylogenetic analysis. the most similar species on the basis of 16s rrna gene sequences were pseudomonas azotoformans iam 1603t, pseudomonas gessardii cip 105469t, and pseudomonas libanensis cip 105460t showing 99.7-99.6 % similarity. using rpod gene sequences pseudomonas veronii lmg 17761t (93.3 %) was most closely related to strain ws 4672t and pseudomonas ... | 2017 | 28141500 |
| isolation and identification of pseudomonas azotoformans for induced calcite precipitation. | biomineralization is a process by which living organisms produce minerals. the extracellular production of these biominerals by microbes has potential for various bioengineering applications. for example, crack remediation and improvement of durability of concrete is an important goal for engineers and biomineral-producing microbes could be a useful tool in achieving this goal. here we report the isolation, biochemical characterization and molecular identification of pseudomonas azotoformans, a ... | 2015 | 26386580 |
| short communication: pseudomonas azotoformans causes gray discoloration in htst fluid milk. | pseudomonas species are well recognized as dairy product spoilage organisms, particularly due to their ability to grow at refrigeration temperatures. although pseudomonas-related spoilage usually manifests itself in flavor, odor, and texture defects, which are typically due to production of bacterial enzymes, pseudomonas is also reported to cause color defects. because of consumer complaints, a commercial dairy company shipped 4 samples of high temperature, short time (htst)-pasteurized milk wit ... | 2017 | 28755936 |
| serpentine endophytic bacterium pseudomonas azotoformans ass1 accelerates phytoremediation of soil metals under drought stress. | this study evaluates the potential of serpentine endophytic bacterium to foster phytoremediation efficiency of trifolium arvense grown on multi-metal (cu, zn and ni) contaminated soils under drought stress. a drought resistant endophytic bacterial strain ass1 isolated from the leaves of alyssum serpyllifolium grown in serpentine soils was identified as pseudomonas azotoformans based on biochemical tests and partial 16s rrna gene sequencing. p. azotoformans ass1 possessed abiotic stress resistanc ... | 2017 | 28686889 |