Pseudomonas putida

Anaissie, Elias; Fainstein, Victor; Miller, Peggy A.; Kassamali, Hassanali; Pitlik, Silvio; Bodey, Gerald P.; Rolston, Kenneth

doi:10.1016/0002-9343(87)90223-3

Cited by 52 publications

(13 citation statements)

References 8 publications

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“…Pseudomonas is the most frequently reported genus as PGPB, and the ability of IAA production, ACC deaminase synthesis and P-solubilization by many Pseudomonas species has been documented by numerous researchers (Glick et al 1995;Sharma et al 2016;Egamberdieva et al 2017;Khan et al 2017). However, some strains of both P. pseudoalcaligenes and P. putida may cause nosocomial infections, particularly among the immunocompromised and hence, are considered as unusual human pathogens (Anaissie et al 1987;Flores-Carrero et al 2016). We observed that both isolates were nonhemolytic on human blood agar plates (Table 2).…”

Section: Discussionmentioning

confidence: 99%

Plant growth-promoting bacteria and silicon fertilizer enhance plant growth and salinity tolerance inCoriandrum sativum

Al-Garni

Khan

Bahieldin

2019

Journal of Plant Interactions

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Plant growth-promoting bacteria (PGPB) and silicon (Si) can augment salinity tolerance in plants. In this study, 25 potential PGPB were isolated from alfalfa rhizosphere and screened for their ability to synthesize indole-3-acetic acid, 1-aminocyclopropane-1-carboxylate deaminase, and solubilize tricalcium phosphate. Two promising strains were tentatively identified as Pseudomonas pseudoalcaligenes (KB-10) and P. putida (KB-25) based on phenotypic, biochemical and 16S rRNA gene phylogeny. Subsequently, a pot experiment was conducted to evaluate the effectiveness of KB-10 and KB-25 treatment, alone or in combination with Si fertilizer, in alleviating salinity stress in coriander. The results showed that treatment with PGPB strains and/or Si significantly increased relative water content, concentrations of photosynthetic pigments, peroxidase activity, total biomass, salt tolerance index, and reduced salt-induced total phenolic contents. Overall data suggested that the combined application of PGPB and Si fertilizer could be a feasible and effective approach to improve growth and salinity tolerance in coriander. ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 99%

Plant growth-promoting bacteria and silicon fertilizer enhance plant growth and salinity tolerance inCoriandrum sativum

Al-Garni

Khan

Bahieldin

2019

Journal of Plant Interactions

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“…Excluding pediatric and outbreak cases due to transfusion of contaminated blood or fluid, P. putida bacteremia is rarely reported. To date, Anaissie et al reported six oncology patients with P. putida bacteremia17 and Yang et al reported eight cases in Taiwan 18. Recently, five cases of P. putida bacteremia were reported in Japan 2.…”

Section: Discussionmentioning

confidence: 99%

NosocomialPseudomonas putidaBacteremia: High Rates of Carbapenem Resistance and Mortality

Kim

Park

et al. 2012

Chonnam Med J

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Previously, Pseudomonas putida was considered a low-virulence pathogen and was recognized as a rare cause of bacteremia. Recently, however, multidrug-resistant and carbapenem-resistant P. putida isolates have emerged, causing difficult-to-treat nosocomial infections in seriously ill patients. Currently, the outcome of multidrug-resistant or carbapenem-resistant P. putida bacteremia remains uncertain. Here, we report 18 cases of P. putida bacteremia with high rates of carbapenem resistance and mortality. From January 2005 through December 2011, all cases of nosocomial P. putida bacteremia were identified and analyzed at Chonnam National University Hospital and Chonnam National University Hwasun Hospital. Electronic medical records were reviewed retrospectively. Four (22%) and five (23%) of 18 P. putida isolates were resistant to imipenem and meropenem, respectively. Common primary infection sites were central venous catheter (7, 39%), pneumonia (5, 28%), and cholangitis (2, 11%). Fourteen (78%) patients had indwelling devices related to the primary site of infection. The 30-day mortality rate was 39% (7/18): 40% (2/5) in patients with carbapenem-resistant P. putida bacteremia vs. 38% (5/13) in patients with carbapenem-susceptible P. putida bacteremia. Nosocomial P. putida bacteremia showed high resistance rates to most potent β-lactams and carbapenems and was associated with high mortality rates.

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“…In contrast to Pseudomonas aeruginosa , the most prevalent pathogen, infections caused by P. putida are rare and mostly reported in immunocompromised patients, such as newborns [6], neutropenic and cancer patients [7]–[9]. The ability to adhere to materials and to promote the formation of biofilms appears the most important feature of the pathogenicity of P. putida [10].…”

Section: Introductionmentioning

confidence: 99%

The T7-Related Pseudomonas putida Phage φ15 Displays Virion-Associated Biofilm Degradation Properties

et al. 2011

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Formation of a protected biofilm environment is recognized as one of the major causes of the increasing antibiotic resistance development and emphasizes the need to develop alternative antibacterial strategies, like phage therapy. This study investigates the in vitro degradation of single-species Pseudomonas putida biofilms, PpG1 and RD5PR2, by the novel phage ϕ15, a ‘T7-like virus’ with a virion-associated exopolysaccharide (EPS) depolymerase. Phage ϕ15 forms plaques surrounded by growing opaque halo zones, indicative for EPS degradation, on seven out of 53 P. putida strains. The absence of haloes on infection resistant strains suggests that the EPS probably act as a primary bacterial receptor for phage infection. Independent of bacterial strain or biofilm age, a time and dose dependent response of ϕ15-mediated biofilm degradation was observed with generally a maximum biofilm degradation 8 h after addition of the higher phage doses (104 and 106 pfu) and resistance development after 24 h. Biofilm age, an in vivo very variable parameter, reduced markedly phage-mediated degradation of PpG1 biofilms, while degradation of RD5PR2 biofilms and ϕ15 amplification were unaffected. Killing of the planktonic culture occurred in parallel with but was always more pronounced than biofilm degradation, accentuating the need for evaluating phages for therapeutic purposes in biofilm conditions. EPS degrading activity of recombinantly expressed viral tail spike was confirmed by capsule staining. These data suggests that the addition of high initial titers of specifically selected phages with a proper EPS depolymerase are crucial criteria in the development of phage therapy.

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Pseudomonas putida

Cited by 52 publications

References 8 publications

Plant growth-promoting bacteria and silicon fertilizer enhance plant growth and salinity tolerance inCoriandrum sativum

Plant growth-promoting bacteria and silicon fertilizer enhance plant growth and salinity tolerance inCoriandrum sativum

NosocomialPseudomonas putidaBacteremia: High Rates of Carbapenem Resistance and Mortality

The T7-Related Pseudomonas putida Phage φ15 Displays Virion-Associated Biofilm Degradation Properties

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