Results and Discussion

Results showed that rhizobiophages were commonly associated with nodules of Vicia faba plants and in their rhizosphere regions. Temperate phages were observed to have a wider distribution than lytic isolates. They exhibited different dimensions and morphological characteristics. The presence of temperate or lytic phages with the rhizobial-inoculum in general, decreased the nodulation, biomass dry weight, nitrogenase activity and nitrogen content of the host plant. Inoculation of Vicia faba plants with sensitive isolates of R. leguminosarum bv. viceae alone gave the highest values of symbiotic N2-fixation parameters.

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