The inhibition of 23 strains of actinomycetes by 7 strains of fluorescent pseudomonads and vice versa, on 4 different media, was examined. The antagonism of pseudomonads was more frequent and more intense than that of actinomycetes. Inhibition was observed in pseudomonads and actinomycetes of both kinds of strains, antagonistic and non-antagonistic to Fusarium oxysporum. Some media were more fa...

Soil fumigation induces an ‘increased growth response’ (IGR) in crops of about 35%, even in soils with low pathogen and weed pressures (1). Populations of Pseudomonads and other bacteria increase in fumigated soils as soon as 2-wks after treatment (2). Some Pseudomonads can stimulate plant yields through the production of siderophores, growth promoting substances and by the suppression of soil-...

Pseudomonas syringae is the most common phytopathogenic bacterium with a wide range of target plants, which include important cereals such as wheat. One main pathogens bacterial diseases wheat pv. atrofaciens. In some countries, yield losses caused by this reach 50%. Currently, taxonomy P. includes more than 50 pathovars varying degrees adaptation to lesions. them сoronafaciens. Coronafaciens n...

Many root-colonizing pseudomonads are able to promote plant growth by increasing phosphate availability in soil through solubilization of poorly soluble rock phosphates. The major mechanism of phosphate solubilization by pseudomonads is the secretion of gluconic acid, which requires the enzyme glucose dehydrogenase and its cofactor pyrroloquinoline quinone (PQQ). The main aim of this study was ...

Sorghum [Sorghum bicolor (L.) Moench] is valued for bioenergy, feed and food. Potential of sorghum genotypes to support differing populations of rootand soil-associated fluorescent Pseudomonas spp. or Fusarium spp., in two soils, was assessed. Culturable pseudomonads were enumerated from roots and soil of sorghum (Redlan and RTx433) and wheat (Lewjain) seedlings repeatedly grown in cycled soils...

A systematic experimental procedure for fish shelf-life modelling was used to develop a model for predicting the quality of fish in the chill chain. For this, the growth of the naturally occurring bacteria pseudomonads, Shewanella putrefaciens, Enterobacteriaceae, lactic acid bacteria and yeasts, on gilt-head seabream (Sparus aurata), was studied at temperatures from 0 to 15 degrees C. The resu...

The abundance and population structure of pseudomonads in soils collected from long-(1006 years) and short-(54 years) term grapevine monocultures in Switzerland were examined across five soil horizons within the 1.20e1.35 m range. Soil samples were baited with grapevine, and rhizosphere pseudomonads containing the biocontrol genes phlD (2,4-diacetylphloroglucinol synthesis) and/or hcnAB (hydrog...

Pseudomonas aeruginosa is a ubiquitous fluorescent, rod-shaped pseudomonad, with high metabolic capacity, and potential for application in processes to remove recalcitrant compounds such as petroleum hydrocarbons (PHC) from the environment. The bacterium persists sites highly selective pressures those contaminated by PHC. One of bacterium's strategies colonize biofilms which enhance its protect...

Mathematical models were developed and evaluated for growth of psychrotolerant pseudomonads in chilled milk and in cottage cheese with cultured cream dressing. The mathematical models include the effect of temperature, pH, NaCl, lactic acid and sorbic acid. A simplified cardinal parameter growth rate model was developed based on growth in broth. Subsequently, the reference growth rate parameter...