Figure 3
From: Reproducible hairy root transformation and spot-inoculation methods to study root symbioses of pea
Macro-photography of developing nodules on transformed roots. Non-nodulation mutants P56 (A) and P5 (B) had their nodulation capabilities restored through A. rhizogenes transformation. Each inset shows a magnification of the area framed in the main photograph. Root nodules (arrows) that have emerged from the transformed roots should not be confused with vermiculite pieces (arrowheads). C. P56 mutant transformed with AR1193 lacking the sym10 construct did not exhibit any nodules.