Direct and indirect effect of pseudomonad strains on the growth of <i>A. thaliana</i> Col-0 roots (A&B).

<p>Severe reduction of primary root length (A&B) followed by the death of the seedlings was observed 5 days post-inoculation in the case of PAO1, PA14 and CHAO cultured at a distance of 1.5 cm from the primary root tip. The data also shows less reduction in primary root length in the case of PAO6344, CHAO77, when compared to PA01, PA14 and CHAO, Different letters indicate a statistically significant difference between treatments (Fisher's LSD, <i>P</i><0.05). Data is the mean±SD of 12 replicates and the experiment was repeated on two independent occasions.