Importance of organosulfur utilization for survival of Pseudomonas putida in soil and rhizosphere

Article Abstract:

The importance of arylsulfonate, alkylsulfonate and sulfate ester utilization pathways on the survival of Pseudomonas putida S-313 under various soil conditions and in a tomato rhizosphere is assessed using wild type/mutant comparisons. Mutants of P. putida S-313 with mutations in the asf, ssu, and ats/sft gene loci reveal impaired soil and rhizoshpere competence compared to the wild type, with the highest effect seen in the soil that was lowest in total sulfur.

Gene mutations, Gene mutation, Environmental aspects, Pseudomonas putida, Rhizosphere, Genetic research

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Cultivation-independent examination of horizontal transfer and host range of an IncP-1 plasmid among gram-positive and gram-negative bacteria indigenous to the barley rhizosphere

Article Abstract:

The host range and transfer frequency of an IncP-L plasmid (pKJK10) was investigated among indigenous bacteria in the barley rhizosphere. It was demonstrated that conjugative transfer of the pKJK10 plasmid involved both gram-positive and gram-negative recipients.

Denmark, Cash grains, not elsewhere classified, Barley, Other Grain Farming, Usage, Physiological aspects, Rhizobium, Flow cytometry, Genetic transformation

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